MAXA i-290 0121 Inverter Air Water Heat Pumps with Axial Fans Instructions

Instructions for MAXA models including: i-290 0121 Inverter Air Water Heat Pumps with Axial Fans, i-290 0121, Inverter Air Water Heat Pumps with Axial Fans, Water Heat Pumps with Axial Fans, Heat Pumps with Axial Fans, Pumps with Axial Fans

Manual controller MAXA i-290, 6-50 kW (EN).

Pompa de caldura 27 kW R290 MAXA i-290 0127

Controller Manual

i-290 0121 i-290 0123 i-290 0125 i-290 0127

i-290 Inverter air/water heat pumps with axial fans 2 01 04-08-2023 M.S. A.B. Update e-LITE remote control, b01, b02, b07, C01 descriptions 00 30-01-2023 M.S. A.B.

File Info : application/pdf, 53 Pages, 3.01MB

MCO02060100000.01-i-290-0121-0127

R290
Chiller and Inverter Air/Water heat pumps with axial fans
Controller Manual
Models
i-290 0121 i-290 0123 i-290 0125 i-290 0127
This manual has been created for informative purpose. The company declines any responsibility for the results of any projecting or any installation based on the explanations and/or on the technical specifications provided in this manual. It is besides forbidden the reproduction under any form of the texts and of the figures contained in this manual. This manual is a translation from the official italian language version. For reasons of environmental respect the Company will not provide the hard copy in the original language which could be directly requested or downloaded from the Company website at any time. In case of any dispute, the original language manual will be the trusted one. Even partial reproduction PROHIBITED © Copyright - Advantix SpA
www.maxa.it

i-290 Inverter air/water heat pumps with axial fans

01 04-08-2023

M.S.

A.B.

Update e-LITE remote control, b01, b02, b07, C01 descriptions

00 30-01-2023

M.S.

A.B.

First issued

Rev

Date

Edited Approved

Catalogo / Catalogue / Katalog / Catalogue

Serie / Series / Serie / Serie / Série

MCO02060120000.01

CONTROL FOR INVERTER AIR/WATER CHILLERS AND HEAT PUMPS WITH AXIAL FANS

The electrical and electronic products and any waste cording to WEEE law in accordance with the directive

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the case where the product is replaced with a similar one.

i-290 Inverter air/water heat pumps with axial fans
Contents
1.HOW TO KEEP THE MANUAL ...................................................................................... 6 1.1GRAPHIC SYMBOLS USED IN THE MANUAL ............................................................ 6 2.PERMITTED USED ........................................................................................................ 6 3.GENERAL SAFETY GUIDELINES ................................................................................... 6 3.1PERSONAL PROTECTIVE EQUIPMENT ...................................................................... 6 3.2WORKERS' HEALTH AND SAFETY .............................................................................. 6 4.PURPOSE AND CONTENTS OF THE MANUAL ............................................................ 8 5.USER INTERFACE - CONTROL ...................................................................................... 8 6.THERMOSTAT DISPLAY .............................................................................................. 13 6.1SETTING THE ROOM THERMOSTAT SETPOINT...................................................... 13 6.2OPERATING MODE OF THE THERMOSTAT ............................................................. 14 7.MENU.......................................................................................................................... 15 7.1DIAGNOSTICS........................................................................................................... 15 7.2ALARMS .................................................................................................................... 15 7.3ALARM HISTORY ...................................................................................................... 15 7.4HEAT PUMP SERIAL NUMBER ................................................................................. 15 7.5GENERAL SETTINGS................................................................................................. 15 7.6INSTALLER MENU..................................................................................................... 15 7.6.1UNIT SETTINGS ..................................................................................................... 15 7.6.3HEAT PUMP UPDATE ............................................................................................ 16 8.E-LITE INSTALLATION................................................................................................. 16 9.E-LITE CONNECTIONS................................................................................................ 18 9.1TERMINAL BLOCK .................................................................................................... 18 10.EDITING DYNAMIC SET-POINT ............................................................................... 19 10.1SETTINGS FOR STANDARD CLIMATIC CURVES .................................................... 20 11.CIRCULATOR ............................................................................................................. 20 11.1CONTINUOUS OPERATION [P03=0] - Default ....................................................... 20 11.2OPERATION ON CALL FROM TEMPERATURE CONTROLLER [P03=1] .................21 11.3OPERATING ON CALL FROM TEMPERATURE CONTROLLER WITH PERIODIC ACTIVATION .............................................................................................................................. 21 11.4PROPORTIONAL REGULATION OF THE CIRCULATOR .......................................... 21 11.5SYSTEM VENTING .................................................................................................. 21 12.COMPRESSOR ON/OFF LOGIC ................................................................................ 22 13.REGULATION IN COOLING MODE .......................................................................... 22 13.1REGULATION IN HEAT MODE................................................................................ 23 14.FAN CONTROL OF THE FINNED EXCHANGER ........................................................ 24 15.CONTROLLER FUNCTIONS ...................................................................................... 25 15.1ANTIFREEZE PROTECTION HEATERS (IF KA ACCESSORY IS AVAILABLE)............25 15.2ENABLING DOMESTIC HOT WATER PRODUCTION.............................................. 25 15.2.1MEMORISING THE PROBE IN HEATING MODE ................................................ 25 15.2.2HEATING MODE ON DHW STORAGE TANK ....................................................... 25 15.2.3INSUFFICIENT HEAT EXCHANGE IN A DHW SYSTEM ....................................... 25 15.3REMOTE-CONTROLLED FUNCTIONS .................................................................... 26 15.3.1ON/OFF................................................................................................................ 26
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i-290 Inverter air/water heat pumps with axial fans
15.3.2SUMMER/WINTER MODE CHANGE .................................................................. 26 15.3.3ENABLING SG READY FUNCTION....................................................................... 26 15.4SYSTEM WATER REMOTE PROBE.......................................................................... 27 15.5FUNCTIONS DIGITAL OUTPUTS CAN BE ACTIVATED........................................... 27 15.5.1MACHINE BLOCK................................................................................................. 27 15.5.2AUXILIARY RESISTANCES.................................................................................... 27 15.5.3BOILER ENABLING .............................................................................................. 28 15.5.4ACTIVATION OF INTEGRATION HEATERS AND BOILER IN JOINT OPERATION AND IN SUBSTITUTION OF HEAT PUMP COMPRESSOR ................................................ 29 15.5.5SYSTEM SEASON ................................................................................................. 33 15.5.6ALARM ................................................................................................................. 33 15.5.7DEFROST.............................................................................................................. 33 15.6DEFROST CYCLE...................................................................................................... 33 15.7COMPRESSOR CRANKCASE HEATER..................................................................... 33 15.8DOUBLE SET-POINT ............................................................................................... 33 15.9MINIMUM HZ FUNCTIONALITY............................................................................ 34 15.10MAXIMUM HZ FUNCTIONALITY ......................................................................... 34 15.11FLOWMETER ........................................................................................................ 34 16.FUNCTIONS THAT CAN BE ACTIVATED WITH HI-T2 ACCESSORY (OPTIONAL) .... 35 17.FUNCTIONS THAT CAN BE ACTIVATED WITH GI3 MODULE (OPTIONAL) ............35 17.1I/O RESOURCES OF THE CONTROLLER................................................................. 35 17.2MANAGEMENT OF SECONDARY CIRCULATOR/RELAUNCH PUMP (WITH ROOM THERMOSTAT) ................................................................................................................... 36 17.3MIXER VALVE MANAGEMENT .............................................................................. 36 17.3.1DETERMINATION OF SETPOINT ........................................................................ 37 17.3.2MIXING PUMP..................................................................................................... 37 17.4SOLAR INTEGRATION MANAGEMENT ................................................................. 37 17.4.1ACTIVATION OF SOLAR CIRCULATOR ................................................................ 37 17.4.2COLLECTOR PROTECTION .................................................................................. 37 17.4.3COLLECTOR OVERTEMPERATURE ALARM ........................................................ 37 17.4.4DHW OVERTEMPERATURE ALARM ................................................................... 37 17.4.5SOLAR EXHAUST VALVE...................................................................................... 37 17.4.6DISPOSAL OF SOLAR TANK HEAT ....................................................................... 37 17.4.7ANTIFREEZE......................................................................................................... 37 18.TABLES OF PERMITTED SETUPS FOR USER AND INSTALLER ................................ 38 19.ALARMS .................................................................................................................... 43 19.1[E006] FLOWMETER ............................................................................................... 43 19.2[E018] HIGH-TEMPERATURE ................................................................................. 44 19.3[E020] INCONGRUENT PRESSURES....................................................................... 44 19.4[E005] ANTIFREEZE ................................................................................................ 44 19.5[E611÷E681] PROBE ALARMS ................................................................................ 44 19.6[E801] TIMEOUT INVERTER................................................................................... 44 19.7[E851 ÷E971] INVERTER ......................................................................................... 44 19.8[E00] REMOTE ON/OFF (WARNING)..................................................................... 44 19.9[E001] HIGH-PRESSURE ......................................................................................... 44
4

i-290 Inverter air/water heat pumps with axial fans
19.10[E002] LOW-PRESSURE ........................................................................................ 44 19.11[E008] DRIVER LIMITATION ................................................................................. 44 19.12[E041] 4-WAY VALVE............................................................................................. 44 19.13POWER FAILURE .................................................................................................. 44 19.14UTILITIES BLOCK ALARM TABLE ......................................................................... 45 20.MODBUS VARIABLES ............................................................................................... 45
5

i-290 Inverter air/water heat pumps with axial fans
1. HOW TO KEEP THE MANUAL
The company reserves the right to modify its products and related manuals without necessarily updating previous versions of the reference material. We also decline any responsibility for possible inaccuracies in the manual if due to printing or transcription errors. The customer shall store any updated copy of the manual or parts of it delivered by the manufacturer as an attachment to this manual. The company is available to give any detailed information about this manual and to give information regarding the use and the maintenance of its own units.
1.1GRAPHIC SYMBOLS USED IN THE MANUAL
Indicates prohibited operations.
Indicates potentially hazardous situation for people and/or the proper functioning of the unit.
Hazardous electrical voltage - Electrocution hazard.
Indicates important information that the operator has to follow in order to guarantee the correct operation of the unit in complete safety. Also indicates some general information.
2. PERMITTED USED
· The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.
· These units are built for the heating and/or cooling of water. Any other use not expressly authorised by the manufacturer is considered improper and therefore not allowed.
· All the work must be executed by skilled and qualified personnel, competent on the existing regulations in country of installation. · This appliance is intended to be used by expert or trained operators in shops, light industry and in factories, or for commercial use by
non-expert personnel. · The appliance may be used by children at least 8 years old and by persons with reduced physical, sensory or mental capabilities or without
experience or the necessary knowledge as long as they are supervised or after they themselves have received instructions on the safe use of the appliance and understand the relevant dangers. Children must not play with the appliance. The cleaning and maintenance which the user is expected to carry out on the unit cannot be done by children without supervision.
3. GENERAL SAFETY GUIDELINES
Before starting any type of operation on the unit, every user and operator must have perfect knowledge of operation of the machine and of its controls and have read and understood all of the information in this manual and in the user-installer manual.
3.1PERSONAL PROTECTIVE EQUIPMENT
Refer to the user-installer manual which accompanies the unit.
3.2WORKERS' HEALTH AND SAFETY
Refer to the user-installer manual which accompanies the unit.
6

i-290 Inverter air/water heat pumps with axial fans
IT IS PROHIBITED: To remove and/or to tamper with any safety device. For unauthorised personnel to access the electric panel. To work on live systems. To touch the systems if not authorised to do so. To allow children or unassisted disabled persons to use the appliance. To touch the appliance when barefoot or parts of the body are wet or damp. To perform any cleaning operation when the master switch is `ON'. To pull, detach or twist the appliance's electric cables. To step on, sit down on and/or place any type of object on the appliance. To spray or pour water directly on the unit. To dispose of, abandon or leave within reach of children packaging materials (cardboard, staples, plastic bags, etc.) as they may represent a hazard for the environment and one's life. To tamper with or replace parts of the unit without the specific consent of the manufacturer. The manufacturer shall have no responsibility whatsoever in case of unauthorised operations. CAUTION: Refer to the user-installer manual which accompanies the unit before proceeding. All the operation described below must be done by QUALIFIED PERSONNEL ONLY. The electrical wiring to the terminal blocks has to be done only by qualified personnel. Any routine and/or extraordinary maintenance operation must be carried out with the machine stopped and disconnected. Do not place your hands or introduce screwdrivers, spanners or any other tools on moving parts. The machine operator and maintenance personnel must receive suitable training for the performance of their tasks in safety. Only authorised personnel are allowed to have access to the electric panel. Operators must know how to use personal protective equipment and the accident-prevention rules of national and international laws and regulations. The operator's workplace has to be kept clean, tidy and clear of objects that may hinder free movement. Appropriate lighting of the work place shall be provided so as to allow the operator to carry out the required operations safely. Poor or excessive lighting can cause risks. Ensure that work places are always adequately ventilated and that the extraction systems are working, in good condition and in compliance with the requirements of the laws in force. Not all of the configurations described can be activated and/or modified at the same time. Values other than the default values can jeopardise proper operation of the unit. For further information regarding the value to set, you can refer directly to ADVANTIX S.p.a. The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.
7

i-290 Inverter air/water heat pumps with axial fans
The power supply has to respect the limits shown on the unit's technical label: failing this, the warranty shall expire immediately. Before beginning any type of operation, make sure that power is disconnected.
Connect the conductors in order: phase, neutral and earth.
Dimensioning of the power cables must take into consideration the TECHNICAL DATA provided in the user-installer manual accompanying the unit. Also consider any auxiliary heating devices. Effective earthing is mandatory; the manufacturer is not responsible for damage caused in its absence. When undergoing maintenance, the unit must be disconnected from the power supply, and it must be unplugged in such a way that the operator can verify from wherever he accesses that the plug remains disconnected. Use cables that meet the regulations in force in the different countries. After the unit has been running for 10 minutes, make sure that the screws on the power terminal block remain secured.
Install upstream of each unit a suitable QF protective device and power disconnector, with delayed characteristic curve, with at least 3 mm contact opening and adequate breaking capacity and residual current protection. The size of the circuit breaker must comply with absorption of the unit. See the TECHNICAL DATA in the user-installer manual which accompanies the unit. Also consider any auxiliary heating devices. Before performing any operations on the electric panel, IT IS MANDATORY: To switch off the unit from the control panel ("OFF" displayed). To place the general residual current device QF at "OFF". To wait 15 seconds before accessing the electric panel. To check the grounding before performing any operation. To remain well isolated from the ground, with dry hands and feet, or using insulated platforms and gloves. To keep foreign materials away from the system.

4. PURPOSE AND CONTENTS OF THE MANUAL
The manual is intended to provide the essential information to configure the controller of the units. It is addressed to the installer and operators of the appliance and it enables them to use the equipment efficiently, even if they do not have any previous specific knowledge of it. Not all of the functions described can be activated and/or selected at the same time. Contact our headquarters for further information. The manual describes the machine at the moment it was sold. It must therefore be considered adequate with respect to the state-of-the-art in terms of potentiality, ergonomics, safety and functionality. The company also performs technological upgrades and does not consider itself obliged to update the manuals of previous machine versions which could even be incompatible. Therefore make sure to use the supplied manual for the installed . Contact our headquarters in case of updates or doubts. The user is recommended to follow the instructions contained in this booklet, especially those concerning safety and routine maintenance.

5. USER INTERFACE - CONTROL

Included with each unit is the e-Lite remote keypad. The following list represents the present icons, and their meaning:

ICON

DESCRIPTION

NOTE

Heat pump screen Opens the heat pump screen (home screen).

DHW screen

Opens the domestic hot water screen.

Thermostat screen Opens the thermostat screen.

Opens the menu screen.

Cooling
8

Heat pump in system cooling.

ICON

DESCRIPTION

Heating

Heat pump in heating system.

i-290 Inverter air/water heat pumps with axial fans
NOTE

Domestic hot water Heat pump in domestic hot water.

Set-point Comfort Comfort set-point enabled.

Set-point Economy Set-point economy enabled.

Compressor

White symbol, steady: compressor Off. White symbol, flashing: compressor on call. Blue symbol, fixed: compressor On.

Circulator

White symbol: circulator Off. Blue symbol: circulator On.

Alarm

List of active alarms.

ON/OFF

Switches the heat pump on or off.

Chronothermostat Enables or disables the chronothermostat.

Defrosting

Steady symbol, if the heat pump is in defrost mode. Flashing symbol, if the heat pump is in defrost call.

Antifreeze resistance .The antifreeze resistor is in operation.

Anti-legionella

Fixed symbol if the heat pump is running the anti-legionella cycle. Flashing symbol if the anti-legionella cycle has not been completed.

Heat pump screen, main control screen.

i-290 Inverter air/water heat pumps with axial fans

Number 1
2
3 4 5 6 7 8 9 10 11

Description Date and time The message 'NO COMMUNICATION' is displayed if there is no communication between main control and e-Lite remote control (in this case, check that the connection is correct)
Main menu Heat pump screen DHW screen
Thermostat screen Active alarms and forcing Outside temperature Water flow temperature
Water inlet temperature
Current heat pump status

The possible states of the heat pump are as follows: ICON

DESCRIPTION

Manually enabled comfort set-point.

Manually enabled economy set-point.

Heat pump in manual stand-by. Chronothermostat enabled, with comfort set-point active. Chronothermostat enabled, with economy set-point active.
10

ICON

DESCRIPTION

i-290 Inverter air/water heat pumps with axial fans

Chronothermostat enabled, heat pump in stand-by mode.

Set-point comfort enabled by forcing "digital input" (see heat pump MCO, "secondary set-point from digital input").

Set-point economy enabled by forcing "digital input" (see heat pump MCO, "Secondary set-point from digital input").

If you tap on the symbol

, the operating modes of the heat pump are displayed:

If you tap on the symbol the setpoint setting tab is displayed:

If you tap on the symbol

, the mode selection and timing screen is displayed:

i-290 Inverter air/water heat pumps with axial fans

If you tap on the season selection switch, the selected season is active for the heat pump and thermostat function. If you tap the summer programming chrono switch, the chrono programming screen is displayed:

The strip represents the day, which is divided into 48 parts. The duration of each part is 30 minutes. You can change the day with the > and < arrows. The low blue strip represents the enablement of the cooling mode, with Economy setpoint. The low blue strip represents the enablement of the cooling mode, with Comfort setpoint. The low orange strip represents the enabling of the heating mode, with Economy setpoint. The high red stripe represents the enabling of the heating mode, with Comfort setpoint. The grey stripe represents disabled mode. It is possible to scroll left or right, modifying each slightest division, by enabling the following symbols:

ICON

DESCRIPTION

Heat pump (water outlet configuration) OFF. By scrolling left and right with the arrows, the water outlet configuration of the heat pump system is disabled.

Heat pump (water outlet configuration). By scrolling left and right with the arrows, the water outlet configuration of the system is enabled, in cooling mode with the Comfort set-point.

Heat pump (water outlet configuration). Scrolling left and right with the arrows enables the configuration of the system water outlet in cooling mode with the Economy set-point. Heat pump (water outlet configuration). Scrolling left and right with the arrows enables the configuration of the system water outlet in heating mode with the Comfort set-point. Heat pump (water outlet configuration). Scrolling left and right with the arrows, enables the configuration of the system water outlet in heating mode with the Economy set-point.
12

ICON

DESCRIPTION

i-290 Inverter air/water heat pumps with axial fans

Heat pump, DHW OFF. Scrolling left and right with the arrows, the DHW configuration of the heat pump is set to OFF.

Heat pump, DHW configuration. Scrolling left and right with the arrows enables the configuration of the system water outlet in cooling mode with the Comfort set-point.

Heat pump (water outlet configuration).Scrolling left and right with the arrows enables the configuration of the system water outlet in cooling mode with the Economy set-point.
6. THERMOSTAT DISPLAY
Thermostat function, which uses the e-LITE, internal probe to measure twhiell broeoumsetdemtopsewraittcuhreth. eByheaacttipvuatminpgotnhiosrfuonffc.tion, the internal probe The thermostat call will be sent to the heat pump if: - The unit is in cooling or heating mode - The internal temperature probe has not reached the set-point NOTE: In the centre of the screen, the temperature measured by the internal probe is displayed. At the bottom right, the current setpoint value is displayed.
6.1SETTING THE ROOM THERMOSTAT SETPOINT
Tapping on the measured temperature displays the setpoint change screen:

Tapping on the gear symbol, the thermostat settings are displayed:

Function
Winter comfort Winter economy Summer comfort Summer economy

Description Comfort setpoint for heating operation mode Economy setpoint for heating operation mode Comfort setpoint for cooling operation mode Economy setpoint for cooling operation mode

Range 20°C / 78°C 20°C / 78°C 5°C / 20°C 5°C / 20°C
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i-290 Inverter air/water heat pumps with axial fans

Function Thermostat hysteresis

Description After the room setpoint has been reached, the room call will be sent to the heat pump again, when the room temperature: in heating mode: falls lower than 'room setpoint - thermostat hyster- 0°C / 5°C esis'. In cooling mode: increases over 'air setpoint + thermostat hysteresis'.

Range

Correction of displayed temperature Correction of temperature detected by internal probe

-5°C / +5°C

6.2OPERATING MODE OF THE THERMOSTAT
On the thermostat's main screen, tapping on the status symbol in the bottom left-hand corner displays the thermostat's operating modes:

ICON

DESCRIPTION ON/OFF

NOTE Activates/deactivates the thermostat function

Chrono programming

Enables or disables chrono programming

Comfort Setpoint Economy Setpoint

· Switches to thermostat comfort setpoint, manual mode · Displayed if the chronothermostat is active and in comfort mode
· Switches to thermostat economy setpoint, manual mode · Displayed if the chronothermostat is active and in economy mode

Tapping on the symbol

, the operating season and the thermostat timer are displayed:

The strip represents the day, which is divided into 48 parts. The duration of each part is 30 minutes. It is possible to change the day with the > and < arrows. The low blue stripe represents cooling operation, Economy setpoint. The low blue stripe represents cooling operation, setpoint Comfort. The low orange stripe represents heating operation, Economy setpoint. The low red stripe represents heating operation, setpoint Comfort. Grey stripe, represents disabled mode. The "copy symbol" , allows to select the days of the week, where we want to have the same program as the day shown. Scrolling to the left and right, you can edit each smallest division, enabling the following symbols:
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i-290 Inverter air/water heat pumps with axial fans

ICON

DESCRIPTION

Heat pump (water outlet configuration) OFF. Scrolling left and right with the arrows, the water outlet configuration of the heat pump system is disabled.

Heat pump (water outlet configuration). Scrolling left and right with the arrows, the water outlet configuration of the system is enabled, in cooling mode with the Comfort set-point.

Heat pump (water outlet configuration). Scrolling left and right with the arrows enables the water outlet configuration of the system, in cooling mode with the Economy set-point.
Heat pump (water outlet configuration). Scrolling left and right with the arrows enables the configuration of the system water outlet in heating mode with the Comfort set-point.
Heat pump (water outlet configuration). Scrolling left and right with the arrows enables the configuration of the system water outlet in heating mode with the Economy set-point.
7. MENU
From the main screen, tapping on the menu symbol (bottom left) displays the main menu:
7.1DIAGNOSTICS
In this area, input and output values and heat pump counters are displayed. NOTE: The firmware version of the main control board and the e-Lite can also be found here.
7.2ALARMS
List of active alarms. Tapping on the reset symbol , will reset all alarms that are no longer active.
7.3ALARM HISTORY
Alarm history, with date and time of alarm occurrence and stop.
7.4HEAT PUMP SERIAL NUMBER
Heat pump serial number.
7.5GENERAL SETTINGS
· Date and time · Language · Day brightness: Brightness Day: percentage of display brightness while using the e-LITE. · Night Brightness: percentage of display brightness when the e-LITE is in stand-by mode. · Touch-screen sound: enable or disable tap sound.
7.6INSTALLER MENU
This menu provides access to heat pump configurations and functions. This menu provides access to heat pump configurations and functions. User password: 0000. Depending on the password level entered, different menus are displayed.
7.6.1UNIT SETTINGS
The parameters displayed depend on the password set: This menu gives access to all machine parameters. The parameters are collected in groups, each group is identified by a three-digit code, while the index of each parameter is preceded by a letter.
15

i-290 Inverter air/water heat pumps with axial fans

DESCRIPTION Local water set-points (in cooling and heating, eco and normal). When the e-LITE remote control is connected to thteo htheeastepsuemt-pp,orienftesr,ebnuctetoistnhootsemoande
page Configuration Compressor
Alarms Adjustment
Pump Electrical heaters
Defrosting Hz min / max
*Solar *Mixing valve

GROUP IDENTIFICATION CODE
Set
CnF CP ALL rE PUP Fro dFr LbH SUn rAD

PARAMETER INDEX
User
H01C01A01b01P01r01d01L0S01i01-

VISIBILITY
---
Installer Installer Installer Installer Installer Installer Installer Installer Installer Installer

The PSS menu is accessed to enter the maintainer password and to enable higher privilege access. Once entered, the duration of the password is one hour, or until the control is switched off.
7.6.2FORCING

This menu is protected by an installer password.

· Remote panel alarm history reset: resets the e-LITE alarm history · Main control alarm history reset: resets the main control alarm history · Reboot main control: restarts the main control of the heat pump (only enabled if the heat pump is in stand-by) · Defrost: forces a manual defrost (see conditions to enable defrost, in heat pump MCO) · Venting system: activation of the circulator to force venting of the system. With a tap, the function is activated. With the function active, a
new tap on it disables it. Note that the command is only accepted if the heat pump is in the OFF state. The heat pump suspends this function if the operating mode changes from OFF to another mode, even if the function time has not expired. · Circulator forcing: This function is used to manually force the circulation circulator to run at 100% for 1 hour. A tap on this function will activate it. With the function active, a new tap on it disables it. Note that this command is only accepted if the heat pump is in the OFF state. The heat pump will suspend this function if the operating mode is changed from OFF to another mode, even if the function time has not expired. · Forcing solar circulator: This function is used to manually enable the solar circulator. A tap on this function will enable it. With the function active, a new tap on it disables it. Note that this command is only accepted if the heat pump is in the OFF state. The heat pump will suspend this function if the operating mode is changed from OFF to another mode, even if the function time has not expired.
NOTE:
The main screen will be displayed when a forcing is activated.
7.6.3HEAT PUMP UPDATE

This menu is protected by an installer password.

· FW UPDATE: Main control board firmware update · PARAMETERS UPDATE: Main control board parameter update · PARAMETERS EXPORT: exports parameters and alarm history of main control. · PROGRESS: progress status.

8. E-LITE INSTALLATION
The control is intended to be installed on a wall or placed on a flat surface. The panel cannot be used under conditions of water vapour condensation and must be protected against water. It must be installed at a height that allows it to be used comfortably, typically 1.5 metres above the floor.

i-290 Inverter air/water heat pumps with axial fans

In order to reduce the interference of temperature measurement by the control panel, avoid sunny places with poor air circulation, close to heating devices and placed directly at doors and windows (generally at least 200 mm from the edge of the door).

The control panel must be installed according to the instructions below.

Disconnect the installation frame mostat housing (2). The frame is

(1) from secured

the back of the room to the panel housing

twheitrh-

latches. Use a flat screwdriver to detach the frame.

Using a sharp tool, cut holes in four places in the cover (3) for the screw terminals.

Connect the wires of a transmission cable, connecting the control panel with the heat pump, to the screw terminal (4) as described on the plate (5). The control panel of the cable connection with the heat pump can bmlaetuirosetncbefresasmaedded.iintTihotheneaclwalybalpleloocsroitcniaonnneescdltiidoiennotphnaenitescalsbwulrietfahcchteha-eninnheetlha(ti6sp)cuaomsfepththmeeaincysantbaolletbe routed together with the building network cables. The cable must not be routed close to devices that emit a strong electromagnetic field.

Drill the holes in the wall and use screws (max. Ø 3 mm) to fix the installation frame at the selected location on the wall. The distance of the holes can be determined by positioning the frame on the wall. Then fix the panel to the installation frame using the clips.
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i-290 Inverter air/water heat pumps with axial fans
Use a dedicated stand to place the control panel on a flat surface.

9. E-LITE CONNECTIONS

Two connection cables are required between chiller unit or heat pump and e-Lite remote control: · 5X1mm2 twisted and shielded cable for Modbus communication D+/D-, PE, and 12Vdc power supply, which is included in the box.

NB: The shield of the cable must be connected to PE in both of its ends.

DESCRIPTION
POWER SUPPLY COMMUNICATION
SHIELDING

e-LITE TERMINALS
VCC GND D+ D-

CHILLER/HEAT PUMP TERMINALS (see documentation relating to the heat pump)
1A (i-290) 1B (i-290) PE clamp of the User terminal block

12Vdc POWER SUPPLY
SEC, red, + SEC, black, -

NOTES SHIELDEDCAANBLDETWISTED

9.1TERMINAL BLOCK
See relevant chapter in the i-290 User-Installer Manual.

TERMINAL BLOCK PE N
L

CONNECTION Connect the earthing cable Connect the neutral cable from mains Connect phase L1 cable from mains

TYPE Input for 1-Ph/N/PE power supply, 230 V, 50
Hz. (only for sizes 0106/0109/0112)

L2 L3 1A 1B 1C 12 Vac 12 Vac 2A 2B 2C ID2

Connect phase L2 cable from mains Connect phase L3 cable from mains

Input for 3-Ph/N/PE power supply, 400 Vac, 50 Hz.
(only for sizes 0115 / 0118)

Primary channel Modbus RTU + remote keyboard signal connection Primary channel Modbus RTU - remote keyboard signal connection Primary channel Modbus GND remote keyboard signal connection
Remote keyboard power supply (12 Vac, 50 Hz, 500 mA) Remote keyboard power supply (12 Vac, 50 Hz, 500 mA)

Modbus communication for remote keyboard i-CR
For signal use shielded twisted pair cable 3 x 0.75 mm2
(1A = pin 7, 1B = pin 8, 1C = pin9) For power supply use 2 x 1 mm2 cable (connect
to pins 12 and 13)

Secondary channel Modbus RTU + signal connection GI3 module or remote supervision
Secondary channel Modbus RTU - signal connection GI3 module or remote supervision
Secondary channel Modbus GND signal connection GI3 module or remote supervision
Remote summer/winter mode change input (to activate the function see relevant section in the MCO manual)

Connection of GI3 module, if fitted as an accessory.
Alternatively connection of Modbus RTU RS 485 communication for remote supervision, if
CM accessory present. The GI3 mcoondnuelectaenddaCtMthseuspaemrveistiiomnec.annot be
Voltage-free digital input

i-290 Inverter air/water heat pumps with axial fans

TERMINAL BLOCK ID3 A16 A17 A18
DO3 (*)

CONNECTION

Remote on/off input (closed = machine on / open = machine off)

DHW probe

(to

activate

the

function

see

the relevant ual)

section

the

MCO

man-

System remote probe (to activate the function see relevant section in the MCO manual)

Double set point (to activate the function see the relevant section in the MCO man-
ual)

System integration resistance

DO6 (*)

Valve outlet sanitary hot water

DO7 (*)

Valve outlet second set point

TYPE Voltage-free digital input
Analogue input
Analogue input
Digital input Single-phase voltage output 230 Vac, 50 Hz,
maximum current 300 mA (AC1) Single-phase voltage output 230 Vac, 50 Hz,
maximum current 300 mA (AC1) Single-phase voltage output 230 Vac, 50 Hz,
maximum current 300 mA (AC1)

(*) if used, it is recommended to drive a relay coil or contactor with the voltage output to manage the resource.

10. EDITING DYNAMIC SET-POINT
The regulator allows you to modify the set-point by adding up the value according to the temperature of the outdoor air probe. To use this function, edit the values from parameter b08 to b14 following the information below (edited by the installer). Parameters of regulator PAr -> rE
· b08 enable = 1/disable=0 dynamic set-point. · b09 = maximum cooling offset. · b10 = maximum heating offset. · b11 = Cooling outdoor temperature setting. · b12 = Heating outdoor temperature setting. · b13 = Cooling temperature delta. · b14 = Heating temperature delta. Edit the setpoint depending on the outdoor temperature:
19

Temp. set
Offset >0 b10 Hea

HEATING
Set temp. ext b12

b14 Delta <0

Delta >0

Temp. set Coo
Offset <0

i-290 Inverter air/water heat pumps with axial fans
COOLING
Set temp. ext b11
b09

Temp. ext

Delta <0

b13 Delta >0

Temp. ext

10.1SETTINGS FOR STANDARD CLIMATIC CURVES

HEATING

COOLING

60 55 E 50 D 45 C

Fan Coil

40 B 35 A 30

Under floor

15 -15 -10 -5 0 5 10 15 20 25

20 G
15
10 F
5
0 15 20 25 30 35 40 45

CURVE

Setpoint Heat

Setpoint Cool

b08

20°C

40°C

5°C

10°C

B09

b10

B11

b12

B13

b14

13°C

20°C

-25°C

18°C

20°C

-27°C

25°C

20°C

-29°C

10°C

20°C

-28°C

15°C

20°C

-25°C

5°C

37°C

-17°C

8°C

40°C

-20°C

11. CIRCULATOR
The circulator of the heat pump can be set in the following operating modes: · operation on call by temperature controller · operating on call by temperature controller with periodic activation; · continuous operation (default);
The circulator is switched off immediately if: · There is a manual reset pump block alarm, including the flow switch alarm; · With remote input in standby or off, the pump (if running) is always switched off with a delay equal to P02 in tenths of a minute (default P02=2)
The circulator can be configured with P03 to operate independently from the compressor or on call. 0=continuous operation in heating/cooling mode(default P03=0) 1=operating on call by temperature controller Note: with active no-flow alarm in automatic reset, the circulator is on even if the compressor is off. The circulator is always on when the antifreeze heaters are running and if operation of the hydraulic pump in antifreeze is enabled. Antifreeze operation is enabled if the regulation temperature drops below P04 °C (default 5°C), and disables if the regulation temperature rises above P04+P05 °C (Default value P05=2,0°C). Note: It is possible to change the maximum and minimum speed of the circulator by adjusting parameters P07 and P08 respectively.
11.1CONTINUOUS OPERATION [P03=0] - Default
The circulator is only off with the unit OFF, in all other cases it is always on.

i-290 Inverter air/water heat pumps with axial fans
11.2OPERATION ON CALL FROM TEMPERATURE CONTROLLER [P03=1]
In this operating mode, the circulator is active on demand by the temperature controller, after a delay time of P01 seconds (default P01=30) from when the pump switched on, the compressor switches on as well. Whereas when switching off, the pump is deactivated after a delay time of P02 minutes (default P02=2) from when the compressor switches off. With automatic reset flow switch alarm triggered, the circulator is on even if the compressor is off.
Temperature controller

OFF time
Compressor
ON

OFF time
Pump
ON

OFF P01

time P02

11.3OPERATING ON CALL FROM TEMPERATURE CONTROLLER WITH PERIODIC ACTIVATION
The function is disabled if P17=0 (default). If P03=1, the circulator turns on periodically for a time defined by the parameter P17 (in seconds) after a count, lasting a time set by parameter P16 (in minutes), activated when the pump switches off because temperature control fulfilled. With automatic reset flow switch alarm triggered, the pump is on even if the compressor is off. The periodical function is a suspended if the antifreeze protection trips.
11.4PROPORTIONAL REGULATION OF THE CIRCULATOR
The speed of the circulator changes depending on the temperature difference between the inlet water and outlet water of the heat exchanger, according to the diagram below, where:
· P07: Maximum speed = 95% · P08: Minimum speed = 75% · P09: modulating pump inlet/outlet water Delta T setting (°C) (according to model) · P10: Modulating pump Delta = 3°C (default)

Speed [%]
P07

P06/P09

P08

P10

[°C]

The circulator is at maximum speed in DHW production. Note: If the parameter r33 > 0, then the circulator can be running on call even to activate the system and/or sanitary heater, see par.10.8.
11.5SYSTEM VENTING
Function used to vent the system, with the circulator at maximum speed. To enable the function:
· Controller OFF · Access the parameters PRG ->PSS ->PRG -> (enter Service password)
21

i-290 Inverter air/water heat pumps with axial fans
· Press the UP and DOWN keys simultaneously for 3 seconds The circulator switches on at maximum speed, and then switches off after 5 minutes. The system venting cycle can be exited manually by pressing the MODE/ESC key, or by pressing the UP and DOWN keys simultaneously for 3 seconds. During this function, the flow switch alarm is disabled, the maintenance technician must guarantee that there is water inside the system.
12. COMPRESSOR ON/OFF LOGIC
The restart of compressors is in operation of a set point referred to the inlet water temperature. It is based on calculation of T,set which is the difference between outlet water temperatures and inlet water temperatures, detected while the compressor for thermoregulation is turning off. By thermoregulation we mean the temperature control performed by the generator in order to guarantee the temperature strictly necessary to the system, reducing electricity consumption and achieving better indoor comfort. The heat pump is supplied with a modulating control system based on the fluid outlet temperature, variable-speed compressors are able to adapt to the load variation, and reduce the fluctuations that would occur with an on/off system.

Modulating control systems can be:

- proportional - proportional integrals

is the least complex control mode because it adjusts the capacity based on the difference between the actual control temperature and the target temperature (set point). The temperature range within which the variation is activated to achieve the comfort temperature is defined as the 'proportional band' and represents the working range of the heat pump. Parameters b01 and b02 are defined:

Parameter b01 b02

Description band in chiller/cooling mode
heat pump/heating band

13. REGULATION IN COOLING MODE
· Tw,out,set = adjusted setpoint in cooling; · Tw, in, set = value of the water inlet probe recorded at the instant the compressor switches off when setpoint is reached; · T,set = Tw,out,set Tw,in,set; · b24 = cut-on hysteresis limitation; · b25 = delta cut-on compressor set= 2°C.

i-290 Inverter air/water heat pumps with axial fans
· The compressor shutdown: the compressor shutdown when Tw,out < Tw,out,set · The compressor restart starts when Tw,out > (Tw,out,set + T,set + b25) EXCEPTION: The value of T,set is limited by b24. If T,set >b24 (default value 8°), the compressors restart when: Tw,out > (Tw,out,set + b24 + b25).
13.1REGULATION IN HEAT MODE
· Tw,out,set = setting setpoint in heat mode · Tw, in, set = value of the water inlet probe recorded at the instant the compressor switches off when setpoint is reached. · T,set = Tw,out,set Tw,in,set · b24 = cut-on hysteresis limitation; · b25 = compressor regulation delta cut-on = 2°C
· The compressor shutdown: the compressor shutdown when is regulated by parameter b05 Tw,out > Tw,out,set · The compressor restart when: Tw,out < (Tw,out,set - Tset b25) EXCEPTION: The value of T,set is limited by b24. If T,set >b24 (default value 8°), the compressors restart when: Tw,out < (Tw,out,set - b24 - b25). As can be deduced from the graphs above, the higher the band (higher b01 or b02 values, dotted lines in the graph), the lower the frequency at the same water outlet temperature (Hz1>Hz2). The variables for deciding the correct proportional band value are: - water content dedicated to the unit only - type of terminals. It is recommended to vary these values during start-up by considering a minimum value of 1 and a maximum of 4 °C. Proportional Integral Method - PI: With a value of b070 (Integral Time), this type of adjustment is much more accurate than the proportional one because it enables further reduce oscillations through continuous evaluation of the deviation. The PI control provides a value from 0 to 100 % corresponding to the minimum and maximum possible frequency thanks to a constant scan that photographs the deviation between the actual measured temperature and the target temperature. The error in cooling and heating mode will be calculated in this way, respectively: - f = Tmis - Set point (Error in cold or chiller mode)
23

i-290 Inverter air/water heat pumps with axial fans
- c = Set point- Tmis (Error in heat or heat pump mode) If the measured error is positive then there will be a variation otherwise, if negative, the frequency will not vary. The two components (PI) work in synergy: - unchanged: no change in power - increasing: power increases due to the proportional component - decreasing: power decreases due to the effect of the proportional component The contribution of this component is directly proportional to the calculated error and inversely proportional to the value of the control band. For the same calculated error, the higher the set band, the lower the percentage of action, while for the same band, the higher the calculated error, the higher the percentage of action. The calculated error, the higher the percentage of action. For a better understanding of what is described, see the graphs below.

The contribution of this component is added to the power demand at each scan as a function of the integral time inversely proportional to the integral time b07:

Set-point set

b02

Tmis

34,5

0,5

b07

100

integral contribution

2,5

N.B. if the power required is 100% or 0% there is no additional contribution or decrease.

The use of this regulation can be advantageous if the load variation is progressive without sudden variations because it would deliver more accurately the actual output of the heat pump in relation to the actual demand, whereas a only proportional component (b07=0) would be recommended for systems where the power demand variation is for a short period of time. During commissioning, it must be considered whether it is more effective to work with a P or PI control in operation: - water content dedicated to the unit only - type of terminals - of the load variation during start-up

The choice of regulation is fundamental to optimise the efficiency of the system and to reduce the number of starts/hour in order to achieve tmheecchoarnrieccatl pthaertrsminodthyneacmomicpbraelsasnocre, itanisdretchoemcomrerencdteldubtoriccahtoioonseotfhtehme in order to have a continuous operation of the heat pump of at least 10 minutes. The heat pump control regulates the maximum number of starts per hour via parameter C02 (which cannot be changed and is fixed by the manufacturer) in order to preserve the integrity of the compressor over time, but if necessary during the commissioning phase you can choose to delay the next start-up using parameter C01:

14. FAN CONTROL OF THE FINNED EXCHANGER
Ventilation control is a function of condensing pressure in chiller mode, and a function of evaporating pressure in heat pump mode. The regulation of ventilation is dependent on the operating conditions of the machine. A pre-ventilation occurs every time the compressor switches on and off.
24

i-290 Inverter air/water heat pumps with axial fans

15. CONTROLLER FUNCTIONS
The following is a list of the functions which can be activated in the machine controller; not all of them can be selected simultaneously. Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters.
15.1ANTIFREEZE PROTECTION HEATERS (IF KA ACCESSORY IS AVAILABLE)
If the optional KA kit is present, the function is active by default. The water antifreeze heaters on the faces of the evaporator plates even activate with the machine off (but powered) when the delivery water temperature drops below r02 °C (default 4°C) in "heating" mode or below r03 °C (default 4°C) in "cooling" mode or when switched "OFF". The heaters are switched off when the temperature measured by the outlet water probe exceeds r02+r06 in "heating" or r03+r06 in "cooling" or when "OFF" (default value r06=2.0 °C). The heating cable at the base of the machine activates when the outdoor air temperature drops below 3°C. It deactivates when the outdoor temperature rises above 5°C.
15.2ENABLING DOMESTIC HOT WATER PRODUCTION
To activate the domestic hot water functions, connect a probe to be placed inside the tank to terminals X17.1-X17.2 (enabled as analogue input). The sanitary function must be enabled after positioning and connecting the temperature probe.

I/O resource - Parameter
H10
ST6 can be activated via H17 DO6 can be activated via H84

VALUE 0 (default)
1
2
3
4
5
6 6 6

Function

Function disabled

The remoFtuenoctni-oonffafcutnivcetiionnhdeoaetisnngoatnddiscaobolleinDgHmWodpero. duction.

The rFeumncottieonona-cotifvfefuinnchteioantidnigsaabnldescoDoHliWngpmroodduec.tion.

The

remote

Function active in on-off function does

hneoattdinisgambloedDeH. W

production.

The remoteFuonnc-toioffnfuanctcitvieonindhiseaabtliensgDmHoWdep. roduction.

The

remote

Function active in on-off function does

cnoootldinisgambloedDeH. W

production.

The

remoteFuonnc-toifofnfuancctitvioenindcisoaoblilnesg

mode. DHW production.

DHW temperature probe enabling

DHW valve control

If the domestic hot water temperature is lower than its setting (set by default at 48°C, edited by accessing the menu PRG->Set->SAN) the machine activates the DHW valve and the compressor is set at maximum frequency, starting modulation one degree before the setting and switching off one degree after. When the set point is reached, the valve goes back to the rest condition and the compressor starts to regulate normally. Switching from utility water to domestic hot water, the working probe changes from "water outlet probe" to "DHW tank probe". Switching from winter mode to sanitary mode, the compressor does not switch off and is brought to the maximum frequency established by the controller, whereas switching from summer mode to domestic hot water, the compressor is switched off and waits a safety time. Defrosting is always carried out in winter mode on the utility side, and never on the domestic hot water tank. NOTE: -If H10 = 1/3/5. Switching off the unit by remote control (remote on-off, see paragraph 10.4.1) does not affect domestic hot water operation. The unit goes to priority sanitary mode just powered on. The display on the machine shows the temperature detected by the probe inside the DHW tank. When the sanitary cycle has finished, the display goes back to showing the water outlet probe temperature. If the remote ON-OFF digital input (terminals 15.1 / 15.2) is open, with sanitary function enabled (H10=1 and H20=6), the wording "SAN" will appear on the machine display. When the sanitary cycle has finished, the display goes back to showing "E00" indicating that the remote ON-OFF contact is open. -If H10 = 2/4/6, the remote on-off function disables domestic hot water production and operation of the heat pump in heatin and cooling mode, system side.
15.2.1MEMORISING THE PROBE IN HEATING MODE
Switching from utility water to domestic hot water, the working probe changes from "water outlet probe" to "DHW tank probe". For this reason, in heating mode, before entering sanitary mode, the last value read by the heat pump delivery probe is stored. When sanitary temperature control is fulfilled, the system side temperature of reference goes back to that previously stored. The memory function interrupts:
· when the temperature read by the probe becomes lower than the stored value; · or when a time equal to b06 seconds (default b06 = 45) has elasped.
15.2.2HEATING MODE ON DHW STORAGE TANK
If the parameter H130=1, the machine exploits the DHW storage tank even for central heating. In these conditions, the outlet of the DHW valve is also enabled during operation in heating mode and not only in sanitary mode. The valve is deactivated during defrosting and in cooling mode. When H130=1, the DHW integration heater can be enabled also to act as system integration heater: to do this, set r10=1 e r15=2 (for other r15 settings see Paragraph 10.6.3); furthermore no digital output must be set as system integration heater.
15.2.3INSUFFICIENT HEAT EXCHANGE IN A DHW SYSTEM
During DHW production, if the heat pump flow probe detects a temperature higher than 78°C, the DHW valve output is de-energised (D06), and the value of the DHW probe at this time is recorded (Tsan,set). -if the operation is San or Cool+San the compressor is stopped. -If the operation is Heat+San, the system evaluates for b06 seconds whether there is a demand for heating from the system. If the system requires it, the compressor continues to work on the system, otherwise it is switched off. - If the DHW resistor is present (e.g. DO3, H81=26), r15 = 0 or 1 and r24=2 or 3 it is activated until the DHW setpoint is met (and any offset). The compressor restarts when the flow temperature of the heat pump falls below 75°C again and the temperature measured by the DHW probe
25

i-290 Inverter air/water heat pumps with axial fans

is lower than Tsan,set - 4°C.
15.3REMOTE-CONTROLLED FUNCTIONS
Not all of the configurations can be activated and/or modified at the same time. The terminal block has digital inputs to control the unit via an external consent.
15.3.1ON/OFF
The function is enabled by default on digital input ID 3 (terminals X15.1/X15.2). Remove the terminal block jumper to place the unit in standby (the text "E00" appears on the controller display). When the contact closes, the machine comes out of standby and the circulator switches on for 2 minutes. Function enabled by default (Parameter H47=2).

I/O Resource- Parameter ID3 can be activated via H47

Function Enables remote On /Off function

If the unit is switched off by remote control during defrosting, the heat pump finishes defrosting and then places itself in off mode via remote control.
15.3.2SUMMER/WINTER MODE CHANGE
The function can be set on digital input ID 2 (terminals X16.1/X16.2). Heating or cooling mode of the heat pump can be managed by remote control.

I/O resource - Parameter ID2 can be activated via H46

Value 3

Function Open contact -> heat pump in cooling mode. Closed contact -> heat pump in heating mode.

The poles of the digital input can be swapped by setting H75 = 2.
15.3.3ENABLING SG READY FUNCTION
The SG Ready function can be activated if the electricity grid to which the unit is connected is set up as Smart Grid Ready. To activate the SG Ready function, the grid supplier's SG Ready cables must be placed and connected to terminals ID2, C (SG Ready 1 digital input reference) and terminals AI8, C (SG Ready 2 digital input reference). The following parameters must be configured to enable the function:

Resource I/O - Parameter ID2 active via H46
ID9 active via H53 b31 b32

Default value 22
23 2°C 2°C

Function
Closed contact -> SG Ready 1 call Contact open -> SG Ready 1 call not active
OpenClcoosnetdaccto-n>taScGt R->eaSGdyR2eacdalyl n2octaallctive System Setpoint Offset for Smart Grid Sanitary Setpoint Offset for Smart Grid

The following table summarises the four operating states, relating to the status of the two digital inputs configured with the SG Ready function:

External ID2 ID9 signal (SG1) (SG2)

Description OFF command

1:0

Closed Open The heat pump remains forced to a shutdown condition, with the only exception of defrosting in progress; in this

case, it waits until defrosting is complete before activating the function. The control board, in this phase, performs

as if the thermoregulation status was satisfied.

0:0

Open Open

Normal operation

ON command

In this state, the heat pump increases the set-point by an offset defined by parameters b31, b32. The logic differs in two cases, with or without configuration of the 'room call' device (with enabling of a related
digital input, Room Thermostat).

a. Configuration without 'room call' device

0:1

Open

Closed

When the external input 0:1 occurs and the compressor is on, the control logic instantaneously applies the offset; When the external input 0:1 occurs and the compressor is off the control logic does not instantaneously apply the

offset but waits for the compressor to activate the offset.

Configuration with 'room call' device:

b. When external input 0:1 occurs and there is an active 'room call', the control logic instantaneously applies the offset; when external input 0:1 occurs and there is no active 'room call', the control logic does not instantaneously
apply the offset but waits for the 'room call' to be activated and only then applies the offset.

i-290 Inverter air/water heat pumps with axial fans

External ID2 ID9 signal (SG1) (SG2)

Description Force ON command

Compared to the previous case, the heat pump forces ON immediately by increasing the set-point of an offset defined by parameters b31, b32, with the distinction of the following two cases:

a. Configuration without 'room call' device

1:1

Closed Closed When the external 1:1 input occurs, the control logic instantly applies heat offsets and/or san offsets, whether the

compressor is on or off;

b. Configuration with 'room call' device When the external 1:1 input occurs, the control logic instantaneously applies heat offsets and/or sanitary offsets, whether there is an active room call or not; this means that the control logic immediately forces the set point to increase by a value equal to the offset, regardless of the room call status or regardless of the compressor status.

The following control logic applies to both conditions 'Command ON-external input 0:1' and 'Command FORCE ON-external input 1:1': a. If both offsets are enabled (Heating offset + Sanitary offset), the control logic does not apply the offset on the sanitary set instantaneously but only when the heating operation mode is satisfied. b. If the pdc is operating in DHW mode, the DHW offset is not applied instantaneously but the DHW set-point is satisfied first. It then returns to heating mode by applying the heating set-point+offset and only then applies the offset on the DHW set-point (DHW set-point+offset). c. If the machine is thermoregulating using the "second set-point" function the offset on the system set-point is not applied.
15.4SYSTEM WATER REMOTE PROBE
In some system solutions (e.g. heat pump in parallel to boiler on same hydronic circuit and shut off diverter valve) it could be necessary to enable a system remote temperature probe so that the controller can correctly process the management.

I/O resource- Parameter ST7 can be activated via H18

Value 41

Description Enables system remote probe

In the presence of the system remote probe, if the storage tank temperature is satisfied, it is avoided to activate the compressors even if the regulation probe requires it. The conditions for the application of thermoregulation lockout are as follows: - the heat pump is not performing DHW - the heat pump is not defrosting - all compressors are switched-off The blocking conditions are as follows:

Operating mode

Conditions inhibiting the restart of thermoregulation

heating

System remote probe > setpoint - b22

cooling

System remote probe < setpoint + b22

Nota: b22=5°C. See paragraph 13.
15.5FUNCTIONS DIGITAL OUTPUTS CAN BE ACTIVATED
If the machine block signal function is not active, one of the following signals can be configured at the DO7/N terminals and the user terminal block.
15.5.1MACHINE BLOCK
Configured by default, a voltage output signalling the presence of an alarm.

Resource I/O (Parameter) DO7 attivabile via H85

Value 47

Function Alarm signalling

15.5.2AUXILIARY RESISTANCES
In some system solutions, it may be necessary to use an integration resistor for the system and/ or for the DHW. To define the mode of intervention of the integration resistors, the parameter r24 must be set:
· r24=0 integration resistors not used; · r24=1 use of system integration resistor only; · r24=2 use of DHW integration resistor only; · r24=3 use of both system integration resistor and domestic hot water integration resistor.
27

i-290 Inverter air/water heat pumps with axial fans

15.5.2.1SYSTEM HEATER
If the regulation temperature remains below water setpoint in heating (Hea) 0.5°C for a time equal to r12 the integration heater is activated according to operation of the machine in joint time slots or in substitution, as indicated in Paragraph 10.11. The heater switches off when the setpoint is reached (also taking into account an offset set with parameters r29 or r30). If the regulation temperature remains below the water setpoint minus r11 (°C) and the machine is blocked due to triggering of an alarm, the heater switches on. It switches off when the machine exits the alarm block.

I/O resource - Parameter
r10
r11 r12 r24 D03 can be activated via H81

Value
1
0.5°C (default) 8 minutes (default)
1/3 22

Function
Function enabling
Heaters in heating integration delta Heaters in heating integration delta
Type of use of heaters System integration heater

15.5.2.2PLANT HEATER IN DEFROST
During the defrost cycle (see Paragraph 10.12.2), setting r21=1 (in addition to r10=1 and r24=1 or 3) activates the plant side electric heater, if requested (regulation temperature lower than water setpoint -r11(°C), without waiting the time defined by r12.
15.5.2.3DHW HEATER
Function which can be activated instead of managing the plant heater This is an additional resource for heating the domestic hot water storage tank if the compressor alone is not capable of fulfilling the request in a reasonable time. If domestic hot water production lasts longer than r16 (minutes) or if the machine blocks due to triggering of an alarm, the heater switches on. It switches off when the unit finishes domestic hot water production (also taking into account an offset on the setpoint with parameter r31, as explained in Paragraph 10.11.1).

I/O resource - Parameter r15 r16 r24
D03 can be activated via H81

Value
1 8 minutes (default)
2/3 26

Function Function enabling DHW integration activation delay Type of use of heaters System integration heater

Note: The domestic hot water function must be enabled (see paragraph 10.2)
15.5.2.4SINGLE SYSTEM/DHW INTEGRATION HEATER
By configuring the DHW integration heater, it is possible to use this heater declared also as plant integration heater, setting the parameter r15=2 and r24=3. In case of plant integration demand, the heater declared as DHW integration is activated, thus allowing to have a single integration heater for plant, domestic hot water and plant under defrost.
15.5.2.5INTEGRATION HEATER SELECTION MODE
The priority can be set in the order to activate the plant side and sanitary side integration heaters; specifically the configurations are: 1. r14=0 (default), the heaters can be activated simultaneously, if present; 2. r14=1, the heaters can be activated, excluding one another: 2.1. r20=0, priority to the plant (the DHW heater only switches on if the temperature control for the plant side heater is fulfilled); 2.2.r20=1, priority to DHW (the plant side heater only switches on if the temperature control for the sanitary side heater is fulfilled).
15.5.2.6CIRCULATOR MANAGEMENT WITH HEATER ON
The circulator of the heat pump can be activated when the plant and/or DHW integration heaters are active with the compressors not running (by substitution, by alarm or by integration in bracket II or III). -r33 = 0: The circulator of the heat pump is activated on demand of the compressors or boiler, -r33 = 1: The circulator of the heat pump is activated if the plant heater is active. -r33 = 2: 2: The circulator of the heat pump is activated if the DHW heater is active. -r33 = 3: The circulator of the heat pump is activated if the plant or DHW heater is active. The circulator switches off after post-pumping (P02).
15.5.3BOILER ENABLING
Function which can be activated instead of managing the double setpoint. This is an additional resource to enable the boiler in integration or substitution of the heat pump. Define the use mode by setting the parameter r23:
· r23=0 (default) boiler not used (operating priority of heaters); · r23=1 only boiler on plant used (operating priority of heaters); · r23=2 only DHW boiler used (operating priority of heaters); · r23=3 DHW and plant boiler used (operating priority of heaters); · r23=4 only boiler on plant with priority used (no heater operating priority); · r23=5 only boiler in sanitary with priority used (no heater operating priority); · r23=6 boiler on plant and in sanitary with priority used (no heater operating priority);
28

i-290 Inverter air/water heat pumps with axial fans

Define the supply of the boiler, setting parameter r32: · r32 = 0: boiler without circulator with temperature control by heat pump, · r32 = 1: boiler with autonomous circulator with temperature control by heat pump; · r32 = 2: boiler without circulator with autonomous temperature control; · r32 = 3: boiler with circulator with autonomous temperature control.

I/O resource- Parameter r10 r12 r15 r16 r23 r32
DO3 can be activated via H81

Value
1 8 minutes (default)
1 8 minutes (default)
1÷6 1÷3 29

Function Plant integration enabling Plant integration activation delay DHW integration enabling DHW integration activation delay
Type of use of boiler Boiler supply Boiler enabling

15.5.4ACTIVATION OF INTEGRATION HEATERS AND BOILER IN JOINT OPERATION AND IN SUBSTITUTION OF HEAT PUMP COMPRESSOR

The auxiliary parts that can be used for joint operation or for operation in substitution are: · boiler · plant integration heater · DHW integration heater
Considering the operating modes in heating and/or DHW, there are 4 operating areas:

Outside temp.

Heat pump
STANDARD WORKING

r22

Heat pump + Boiler/Heater
JOINT OPERATION I ZONE

r28

Boiler + Heat pump/Heater
JOINT OPERATION II ZONE

r08
Boiler/Heater
OPERATION IN SUBSTITUTION

If you need to change the values of the parameters r22, r28, r08, follow r22 r28 r08. Setting r22=r28 allows you to eliminate the zone relative to joint operation bracket I; setting r28=r08 allows you to eliminate the zone relative to joint operation bracket II; setting r22=r28=r08 allows you to eliminate both brackets relative to joint operation. Do not modify value r08, as it could jeopardise operation of the unit
15.5.4.1OPERATION IN HEAT PUMP MODE
Normal operation of the heat pump in which the integration resistors and/or the boiler only intervene when a heat pump alarm is triggered.
15.5.4.2JOINT OPERATION (I BRACKET)
If the outdoor temperature is between r22 and r28, the compressor operates in synergy with the auxiliary heaters in winter or DHW mode. In this operating bracket, first the heat pump is activated and after r12 minutes the plant side auxiliary heaters, or after r16 minutes the sanitary side auxiliary heaters. The intervention priorities are defined by the parameters r14, r20, r23, r24. It goes back to normal operation if the outdoor temperature is greater than r22+1.0 (°C). NOTE: In the joint operating bracket, the boiler is temperature controlled by the plant water remote probe (if enabled). In particular, if the temperature detected by the remote probe is lower than the Hea setpoint, the boiler is switched on and then will go off when the temperature detected by the remote probe is higher than the Hea setpoint. The heat pump follows the activation logic described in paragraph 10.5. If the remote plant water probe is not enabled, the boiler will be managed by the delivery probe of the heat pump.
15.5.4.3JOINT OPERATION (II BRACKET)
If the outdoor temperature is between r28 and r08, the compressor operates in synergy with the auxiliary heaters. In this operating bracket, first the boiler is activated, then the heat pump and auxiliary heaters intervene after a time defined by r12 (minutes)
29

i-290 Inverter air/water heat pumps with axial fans

for the plant side and r16 (minutes) for the sanitary side. The intervention priorities are defined by the parameters r14, r20, r23, r24. It goes back to normal operation if the temperature rises above r28+1.0 (°C). Note: In the joint operating bracket, the boiler is temperature controlled by the plant water remote probe (if enabled). In particular, if the temperature detected by the remote probe is lower than the Hea setpoint, the boiler is switched on and then will go off when the temperature detected by the remote probe is higher than the Hea setpoint. The heat pump follows the activation logic described in paragraph 10.5. If the remote plant water probe is not enabled, the boiler will be managed by the delivery probe of the heat pump.
15.5.4.4OPERATION IN SUBSTITUTION
If the outdoor temperature drops below r08 use of the heat pump compressor will be inhibited. - If the auxiliary system is composed of plant and/or DHW heaters, they are active in substitution of the compressor with defined times, r12 (minutes) for plant side and r16 (minutes) for sanitary side. Whereas in the operation in substitution bracket, the integrations do not need to be enabled with r10 or r15 as the heaters need to operate in substitution (and not in integration) of the heat pump (therefore simply select the type of use with the parameter r24). - If the auxiliary system is a boiler with autonomous circulator (r32 = 1 or 3). The circulator of the heat pump is off, after P01 (default 30 seconds) the boiler is enabled. NOTE: With water side antifreeze protection, the pump used is activated (or remains active) anyhow. - If the auxiliary system in substitution is a boiler with autonomous temperature control (r32 = 0 or 2). The boiler is enabled regardless of the temperature control of the heat pump. - If the auxiliary system in substitution is a boiler without circulator (r32 = 0 or 2). The circulator of the heat pump is on when the boiler is enabled. The compressor switches back on if the temperature rises above r08+ r09 (°C) (r09=1.0 °C by default).
15.5.4.5OPERATING BRACKETS - ACTIVATION OF INTEGRATION HEATERS (plant remote water probe not enabled)
The possible configurations of the integration parameters are listed in tables 1,2,3 and 4 shown below, divided by operating brackets (the operating modes and possible values of the parameters are indicated in the "STATUS" boxes and in the parameters "rxx" so that a given order of intervention of the integrations occurs in a certain operating mode of the unit; other statuses and values of the parameters can be selected instead and therefore they are provided in the same cell separated by the symbol "/").

TABLE 1. NORMAL OPERATION IN HEAT PUMP

INTEGRATIONS INTERVENTION

N°

ORDER (with set-point not reached and

STATUS

OPERATION

r10 r15

r12

machine blocked by alarm)

1 1) Plant integration heater

HEAT/ HEAT+SAN

HEAT

0/1/2 /

r16 /

r23 r24 0/2/5 1/3

2 1) Boiler

HEAT/ HEAT+SAN

HEAT

0/1/2 0/1/2 /

1/3/4/6 0/2

1) 2)

PAlfatenrt1in2tmegnruattieosn, bhoeialetrer

HEAT / HEAT+SAN

HEAT

1) Boiler 2) After r12 minutes, plant integration heater

HEAT / HEAT+SAN

HEAT

5 1) DHW integration heater

HEAT+SAN DHW

6 1) Boiler

HEAT+SAN

DHW

COOL+SAN

1) 2)

DAfHteWr ri1n6temgrinatuitoens,hbeoaitleerr

HEAT+SAN DHW

1) 2)

BAoftielerr

r16

minutes,

DHW

integra-

HEAT+SAN

DHW

tion heater

9 1) Plant/DHW integration heater

HEAT / HEAT+SAN

HEAT/DHW

0/1/2

Set the minutes

0/1/2

Set the minutes

0/1 1

1/3 1/3 4/6 1/3 0/1/4 2/3

0/1 0/1/2 /

0/1 1

2/3/5/6 0/1

Set the minutes

2/3

Set the minutes

5/6

2/3

10 1) Boiler

HEAT / HEAT+SAN

HEAT/DHW

0/1 0/1/2 /

3/6 0

1) 2)

PAlfatenrt/r1D2HmWininutteegs,rabtoioilnerheater

HEAT / HEAT+SAN

1) 2)

BAoftielerrr12

minutes,

plant/DHW

in-

tegration heater

HEAT / HEAT+SAN

HEAT/DHW HEAT/DHW

Set the minutes

TABLE 2. JOINT OPERATION, BRACKET 1

N°

INTERVENTION ORDER (with setpoint not reached)

STATUS

1) Heat pump 2) After r12 minutes, plant integration heater

HHEEAATT+/SAN

OPERATION HEAT

r10 r15

0/1/2

r12

r16

Set the minutes

r23 0/2/5

3 3
r24 1/3

i-290 Inverter air/water heat pumps with axial fans

TABLE 2. JOINT OPERATION, BRACKET 1

N°

INTERVENTION ORDER (with setpoint not reached)

STATUS

OPERATION

r10 r15

2 12)) HAfetaetr pr1u2mmpinutes, boiler

HHEEAATT+/SAN HEAT

0/1 0/1/2

1) Heat pump

2) After r12 minutes, plant integration h3)eAatfeterr further r12 minutes, boiler

HHEEAATT+/SAN

HEAT

1) Heat pump

2) 3)

After After

rfu1r2thmeirnur1te2sm, binouilteers,

plant

inte-

HEAT / HEAT+SAN

HEAT

gration heater

1) Heat pump 5 2) After r16 minutes, plant integration HEAT+SAN DHW
heater

0/1/2

0/1 1

1) Heat pump 2) After r16 minutes, boiler

HEAT+SAN/ DHW

0/1 0/1/2

1) Heat pump

2) After r16 minutes, plant integration h3)eAatfeterr further r16 minutes, boiler

HEAT+SAN

DHW

1) Heat pump

2) 3)

After After

rfu1r6thmeirnru1t6esm, binouilteers,

DHW

inte-

HEAT+SAN

DHW

gration heater

1) Heat pump 2) After r12 minutes, plant/DHW integration heater

HHEEAATT+/SAN

HEAT/DHW

0/1 1

1) Heat pump 2) After r12 minutes, boiler

HEAT / HEAT+SAN

HEAT/DHW

0/1 0/1/2

1) Heat pump

2) After r12 minutes, plant/DHW integ3r)aAtfitoenr hfuerattheerr r12 minutes, boiler

HHEEAATT+/SAN

HEAT/DHW

1) Heat pump

2) 3)

AAftfeterrr1f2urmthineurters1,2bomileinrutes,

plant/

HEAT / HEAT+SAN

HEAT/DHW

DHW integration heater

r12

r16

Set the minutes

r23 r24 1/3/4/6 0/2 1/3 1/3

Set the minutes

4/6 1/3

Set the minutes

0/1/4

2/3

Set the minutes

2/3/5/6

2/3

Set the minutes

2/3

Set the minutes

5/6

2/3

Set the minutes

Set the minutesi

Set the minutes

3/6

Set the minutes

TABLE 3. JOINT OPERATION, BRACKET 2

N°

INTERVENTION ORDER (with setpoint not reached)

STATUS

OPERATION

r10 r15

r12

r16

1) Boiler 2) After r12 minutes, heat pump

HEAT / HEAT+SAN

HEAT

0/1

0/1/2

Set the minutes

1) Boiler

2) After r12 minutes, plant integration h3)eAatfteerr further r12 minutes, heat pump

HEAT / HEAT+SAN

HEAT

1) Boiler 3 23)) AAfftteerr rfu1r2thmeirnur1te2sm, hineuattepsu, pmlapnt inte- HHEEAATT+/SAN HEAT
gration heater

0/1/2

Set the minutes

0/1/2

Set the minutes

4 12)) PAlfatenrtri1n2temgrinatuitoens,hheeaatterpump

HHEEAATT+/SAN HEAT

0/1/2

Set the minutes

r23 r24 1/3/4/6 0/2 1/3 1/3 4/6 1/3 0/2/5 1/3

5 12)) BAoftielerrr16 minutes, heat pump

HEAT+SAN DHW

1) Boiler

2) After r16 minutes, DHW integration h3)eAatfteerr further r16 minutes, heat pump

HEAT+SAN

DHW

1) Boiler

2) 3)

After After

rfu1r6thmeirnru1t6esm, hineuattepsu, DmHpW

inte-

HEAT+SAN

DHW

gration heater

1) 2)

DAfHteWr ri1n6temgrinatuitoens,hheeaatterpump

HEAT+SAN DHW

0/1 0/1/2 /

0/1 1

Set the minutes

2/3/5/6

0/1

Set the minutes

2/3

Set the minutes

5/6

2/3

Set the minutes

0/1/4

2/3

1) 2)

BAoftieler rr12

minutes,

heat

pump

HEAT / HEAT+SAN

HEAT/DHW

Set the minutes

3/6

i-290 Inverter air/water heat pumps with axial fans

TABLE 3. JOINT OPERATION, BRACKET 2

N°

INTERVENTION ORDER (with setpoint not reached)

STATUS

OPERATION

r10

1) Boiler

2) After r12 minutes, plant/DHW integ3r)aAtfitoenr hfuerathteerr r12 minutes, heat pump

HHEEAATT+/SAN

HEAT/DHW

1) Boiler

2) 3)

AAftfeterrr1f2urmthineurters1,2hematinpuutemsp,

plant/

HEAT / HEAT+SAN

HEAT / SANITARIO

DHW integration heater

r15 1 1

1) 2)

PAlfatenrt/r1D2HmWininutteegs,rahteioant

heater pump

HEAT / HEAT+SAN

HEAT/DHW

r12

r16

r23

Set the minutes

r24 3 3 3

TABLE 4. OPERATION IN SUBSTITUTION

N°

INTERVENTION ORDER (with setpoint not reached)

STATUS OPERATION r10 r15

r12

r16

1) Boiler 2) After r12 minutes, Plant integration heater

HEAT / HEAT+SAN

HEAT

0/1

0/1/2

Set the utes

min-

r23 r24

4/6

1/3

1) 2)

PAlfatenrt ri1n2temgrinatuitoens,hbeoaitleerr

HEAT / HEAT+SAN

HEAT

0/1

0/1/2

Set the utes

min-

1/3

1) Boiler 3 2) After r12 minutes, DHW integration HEAT+SAN DHW
heater

0/1 0/1/2 /

Set the minutes

5/6

2/3

1) 2)

DAfHteWr ri1n2temgrinatuitoens,hbeoaitleerr

HEAT+SAN DHW

0/1 0/1/2 /

Set the minutes

2/3

1) 2)

ABfotieler rr12

minutes,

Plant/DHW

inte-

gration heater

HEAT / HEAT+SAN

HEAT/DHW

0/1

0/1/2

Set the utes

min-

Set the minutes

1) 2)

PAlfatenrt/r1D2HmWininutteegs,rabtoioilnerheater

HEAT / HEAT+SAN

HEAT/DHW

0/1

0/1/2

Set the utes

min-

Set the minutes

7 1) Boiler 8 1) Plant integration heater 9 1) Boiler 10 1) DHW integration heater

HEAT / HEAT+SAN

HEAT

HEAT / HEAT+SAN

HEAT

HEAT+SAN DHW

0/1

0/1/2

Set the utes

min-

1/3/4/6 0/2

0/1

0/1/2

Set the utes

min-

0/2/5 1/3

0/1 0/1/2 /

Set the minutes

2/3/5/6

0/1

0/1 0/1/2 /

Set the minutes

0/1/4

2/3

11 1) Boiler

HEAT / HEAT+SAN

HEAT/DHW

0/1

0/1/2

Set the utes

min-

Set the minutes

3/6

12 1) Plant/DHW integration heater

HEAT / HEAT+SAN

HEAT/DHW

0/1

0/1/2

Set the utes

min-

Set the minutes

Table 5 shows the settings to be configured to enable the integrations in "summer and sanitary" mode (in this case the only activation that can be activated is the DHW integration heater and the division into operating brackets does not apply).

TABLE 5. OPERATION IN COOL+SAN (DHW RUNNING)

INTEGRATIONS INTERVENTION ORDER

-With setpoint not reached after r16

N° minutes from the start-up of the com- STATUS

OPERATION r10 r15 r12 r16

r23

pressor or with setpoint not reached

with machine blocked by alarm.

1 1) DHW integration heater

COOL+SAN DHW

0/1 1 /

Set the minutes

0/1/2/3/4/5/6

Table 6 shows the behaviour of the plant and DHW integration heaters in all the operating modes of the unit.

r24 2/3

N° STATUS

OPERATION

1 HEAT+SAN HEAT

TABLE 6. INTEGRATION HEATERS OPERATION

PLANT INTEGRATION HEATER Works as indicated in TABLE 1,2,3 and 4.

DHW INTEGRATION HEATER Itqnruoi"lrHehdEaAsbTpy+rSitoAhrNeit"yt,eobmvyeprdeetrhafaatuutlrtoefscathonenittaprrolyal,nttet,hmtehpeuerrneaifttougrreoeeicfsortneo-"SANITARY" mode and the DHW integration heater acts as indicated in TABLES 1,2,3 and 4.

i-290 Inverter air/water heat pumps with axial fans

N° STATUS

OPERATION

2 HEAT+SAN DHW

3 COOL+SAN DHW 4 COOL+SAN COOL

TABLE 6. INTEGRATION HEATERS OPERATION

PLANT INTEGRATION HEATER

DHW INTEGRATION HEATER

Only if all 3 of the following conditions are met: -the output is configured for Plant integration heater; -r24=1/3; -plant water temperature remote probe presethnet apnladntcoinntfeigguraretido;n heater is activated in the following situations: - r12 minutes after the start of its count activated in "HEAT" mode previously running (see Works as indicated in TABLES 1,2,3 and 4. line 1); -viiofuitss"cHoEuAnTt"ismnoodtea,lrre1a2dmy iancuttiveastaefdteirntthheetperme-perature control demand. -caocItnnivfiaSgtAueNrdeITdoA,r RtahYneympoolfadintest,cinwotuietnhgtrsareatirmoenointheteeaprtrreuorpbteies dnd.oet- With "remote on-off" contact open, the Plant integration heater is deactivated.

Cannot be activated

Works as indicated in TABLE 5.

Cannot be activated

15.5.4.6AUXILIARY SYSTEMS OFFSET MANAGEMENT
Lastly you may establish that the boiler and/or integration heaters (according to the resources and selected priorities) have a setpoint in heating mode and in sanitary mode higher than that of the heat pump. This is achieved by setting an offset on the following setpoints:
· r29 = First setpoint temperature offset for boiler and plant heaters (G02); · r30 = Second setpoint temperature offset for boiler and plant heater (G05); · r31 = Temperature offset for boiler and DHW heaters (G03);
This way the heat pump stops at the setpoint (G02,G03,G05) and the temperature difference, according to the set outset, will be supplied by the boiler and/or heaters.

15.5.5SYSTEM SEASON
A digital output can be configured indicating the operating season of the unit, plant side. The output is active in summer mode, while it is deactivated in OFF or heating mode. During DHW production and defrosting, the output maintains the setting of the source season.

I/O Resource (Parameter) DO7 can be activated via H85

Value 31

Function Plant season warning

15.5.6ALARM
A voltage output can be configured to signal the presence of an alarm.

I/O Resource Parameter DO7 can be activated via H85

Value 24

Function Alarm warning

15.5.7DEFROST
A digital output can be configured signalling defrosting in progress.

I/O Resource Parameter DO7 can be activated via H85

Value 21

Function Defrost in progress warning

15.6DEFROST CYCLE
The defrost cycle is only active in heat pump mode and is used to prevent the formation of ice on the surface of the air/air coil. The formation of ice on the evaporator, which is quite frequent with very low outdoor temperatures, in addition to considerably downgrading the thermodynamic performance of the unit, also risks damaging the unit itself. If the unit is switched off by remote control during defrosting, the heat pump finishes defrosting and then places itself in off mode via remote control.
15.7COMPRESSOR CRANKCASE HEATER
The crankcase heater is activated if the compressor has been off for at least 30 minutes and if the discharge temperature is below a certain threshold of 20 °C (with hysteresis of 2.0°C). The crankcase heater is disabled when the compressor starts back up.
15.8DOUBLE SET-POINT
This function introduces a second working set-point on the plant side, both in cooling and heating mode. The user terminal board allows a consent to be connected to switch from the first to the second set-point and configured at digital input ID9 with parameter H53 = 26. The valve, on the other hand, is connected in the terminal board to digital output DO7 and is configured via parameter H85.
33

i-290 Inverter air/water heat pumps with axial fans

Parameter H53 H85
H129
H138

VALUE 26 25 0 1 2 3 4 0 1 2 3

Function Second set-point call 3-way valve for radiant panels Function disabled (default) Function configured but not active Enabled only in cooling mode Enabled only in heating mode Enabled in cooling and heating mode DHW second setpoint function disabled (default) Enabled the second DHW set point in cooling mode Enabled the second DHW set point in heating mode Enabled the second DHW set point in cooling and heating mode

15.9MINIMUM HZ FUNCTIONALITY
Configuring parameter L02=1 and L030 reduces the nominal operating Hz of the compressor.

Parameter L02
L03

VALUE 0 1 0 1 2 3 4 5 6 7

Function Function not active Enabling minimum Hz Function not active Function active only in cooling mode Function active only in heating mode Function active only in sanitary mode Function active in cooling and sanitary mode Function active in heating and sanitary mode Function active in cooling and heating mode Function always active

With the function active, the output and power of the unit are limited, for additional information see the installer user manual. Configuring a digital input ID9 with parameter H53=21, the function can be managed.

Parameter H53

VALUE 0 (default)
21

Function Function disabled Open contact -> standard mode Closed contact -> mode Hz min/max

15.10MAXIMUM HZ FUNCTIONALITY
Activating the function increases the power of the unit, please contact us for information.

15.11FLOWMETER

There is a flowmeter in each unit; it has the following characteristics:

Unit

Water measuring range [L/min]

Flow speed [m/s]

Power supply Current consumption

[Vdc]

without load

0106 0109

3.5 - 50

0,290 - 4,145

4,75 - 33

<5mA

i-290 Inverter air/water heat pumps with axial fans

Unit

Water measuring range [L/min]

Flow speed [m/s]

Power supply Current consumption

[Vdc]

without load

0112 0115

5,0 - 85

0,265 - 4,509

4.75 - 33

<5mA

0118

you can read the flow value in L/min from the remote display by pressing Enter -> SYS, and scrolling to S014.

16. FUNCTIONS THAT CAN BE ACTIVATED WITH HI-T2 ACCESSORY (OPTIONAL)
This is a touch screen remote control for centralised management of a chiller/heat pump network. It includes humidity and temperature sensors for the thermo hygrometric analysis of the environment and for the management of the double set point for radiant floor heating systems that use a dehumidification system. The intuitive interface simplifies the use of the controller; all the functions can be easily set through the use of an easy to understand synoptic. The Hi-T remote control allows you to manage the following functions:
· Remote management; · Management of a network, up to 7 heat pumps; · Zone thermostat; · Screed function; · Antilegionella disinfection; · Double set-point and humidity measurement; · Dew point control; · Climatic compensation; · Booster circulator management; · Management of single pump in a network; · Alarm diagnostic system.
For further information, see the user-installer manual, or contact our headquarters.

17. FUNCTIONS THAT CAN BE ACTIVATED WITH GI3 MODULE (OPTIONAL)
The Gi module is an optional kit which allows you to manage the following functions: · Booster circulator management with the aid of a room thermostat (not supplied); · Management of a plant side mixer valve both in heating and cooling mode; · Solar thermal integration management.
17.1I/O RESOURCES OF THE CONTROLLER
The following is the list of I/O (inputs and outputs) that can be set to activate the functions of the controller.

Resource
ST 5E ST 6E ST 7E ID 9E DO 1E DO 2E DO 3E DO 4E DO 5E

Parameter
H27 H28 H29 H63 H86 H87 H88 H89 H90

Terminal block XGI
1.1 / 1.2
2.1 / 2.2
3.1 / 3.2 4.1 / 4.2 1.1 (phase) 2.2 (neutral) 2.1 (phase) 2.2 (neutral) 7.1 (phase) 7.2(neutral) 8.1 (phase) 8.2(neutral) 9.1 (phase) 9.2(neutral)

Factory configuration

Default value

Function

Not set

Description
Analogue input configurable with an NTC-10k probe at 25°C 3435
Analogue input configurable with an NTC-10k probe at 25°C 3435
Analogue input configurable with an NTC-10k probe at 25°C 3435 Voltage-free digital input
230Vac, 50Hz, 2A (AC1) single-phase live output.
230Vac, 50Hz, 2A (AC1) single-phase live output.
230Vac, 50Hz, 2A (AC1) single-phase live output.
230Vac, 50Hz, 2A (AC1) single-phase live output.
230Vac, 50Hz, 2A (AC1) single-phase live output.

GI terminal block

i-290 Inverter air/water heat pumps with axial fans

XGI-9.1 XGI-8.1 XGI-7.1

XGI-5.1 XGI-4.1 XGI-3.1 XGI-2.1 XGI-1.1

XGI-9.2 XGI-8.2 XGI-7.2 XGI-6.2 XGI-5.2 XGI-4.2 XGI-3.2 XGI-2.2 XGI-1.2

XGI-9.1 XGI-8.1 XGI-7.1

XGI-5.1 XGI-4.1 XGI-3.1 XGI-2.1 XGI-1.1

17.2MANAGEMENT OF SECONDARY CIRCULATOR/RELAUNCH PUMP (WITH ROOM THERMOSTAT)
It allows the management of a secondary or booster circulator to serve the plant. A room thermostat (N.C.) must be configured appropriately. - Thermostat closed contact -> The secondary circulator is activated; - Thermostat open contact -> The secondary circulator is off with a delay given by P02 (post-pumping).

I/O Resource - Parameter
ID9E can be activated via H63 DO5E can be activated via H90

Value 19 43

Function Room thermostat Secondary circulator

XGI terminals
4.1 / 4.2 9.1 (phase) 9.2(neutral)

The temperature control of the Heat pump is independent from the thermostat call. When the Heat pump is Off, the booster circulator will be off regardless of the thermostat call.

17.3MIXER VALVE MANAGEMENT

The mixer valve is regulated by means of specific PID which strives to maintain the delivery temperature of the radiant panel at the set value. The setpoint setting can be found in the 'Set' Menu: rCoo = Mixer flow temperature setpoint in cooling mode = 15°C (default) rHea = Mixer flow temperature setpoint in heating mode = 30°C (default) The resources and the parameters to be setting are the following:

I/O resource - Parameter
ST 5E can be activated via H27
ID9E can bHe 6a3ctivated via DO1E can be activated via
H86 DO2E can be activated via
H87 DO3E can be activated vi
H88

Description Analogue input
Digital input Voltage output Voltage output Voltage output

i01

Valve opening time

i02

Interval between two interruptions

i03

PID proportional band

i04

PID integral time

i05

PID derivative time

Mixer management only active in heating mode

i06

Mixer management only active in cooling mode

Mixer management only active in heating and cooling mode

Value 44
19
34
35
33 Recover the value from the technical data supplied
installed 30 seconds1
2°C2 300 seconds3
0 4 1
2
3

Function Mixer probe Room thermostat Valve open command Valve close command Mixer pump

XGI terminals 1.1 / 1.2
4.1 / 4.2 5.1 (phase) / 6.2(neutral) 5.2 (phase)
7.1 / 7.2

1Recommended value. Time interval between one corretion and the next. 2Recommended value. Intervention area defined by the difference between the setpoint for the mixer flow and the temperature measured by mixing flow probe. 3Recommended value. Time taken by the mixing valve to switch from open to closed and vice versa, when the difference between setpoint set for the flow of the mixing valve and the value read by the mixing probe is greater than or equal to proportional band. The more larger this value, the slower the change in approach to the setpoint set for the mixing valve flow. 4 Derivate component of regulation; use only if you have a good knowledge of regulator logic.

i-290 Inverter air/water heat pumps with axial fans

17.3.1Determination of setpoint
The setpoint on which to perform regulation is given by rCOO or rHEA respectively in cooling and heating mode. If dynamic compensation of the setpoint is enabled (b08=1), then the setpoint will be corrected the same way as the heat pump/chiller. The maximum and minimum value reached by the compensation are not controlled. Therefore the parameters must be configured so that the setpoints are not brought to unwanted values outside of the allowed work ranges.
17.3.2Mixing pump
The mixing pump (DO3E) switches on when there is a call from the digital input ambient thermostat (ID9E) and switches off with a delay of P02 from the instant the thermostat call ceases.
17.4SOLAR INTEGRATION MANAGEMENT
To enable te function, set S01=1.

Parameter
ST6E can bHe2a8ctivated via ST7E can be activated via
H29 DO3E can be activated via
H88 DO4E can be activated via
H89

Description Analogue input Analogue input
Live output
Live output

Value 39 38 30 45

Function Solar storage tank probe
Solar collector probe Solar circulator
Solar exhaust valve

XGI terminals 2.1 / 2.2 2.1 / 2.2
7.1 (phase) 7.2(neutral) 8.1 (phase) 8.2(neutral)

17.4.1Activation of solar circulator
Solar management is also active with the unit off. The solar circulator is active in both of the following conditions are met:
· The temperature of the solar collector is higher than that defined by parameter S13 (default 40°C), the solar circulator is activated; · The temperature difference between the solar collector and that of the solar storage tank is higher than the parameter S02 (default 6°C).
17.4.2Collector protection
If the temperature of the collector exceeds parameter S04 (default 110°C), the solar circulator is periodically on intermittently with the times set in:
· S05 = time ON (default 15 seconds); · S06 = time OFF (default 15 seconds). As hysteresis to exit the protection condition use S08 (default 2°C). This protection is guaranteed even with the machine Off.
17.4.3Collector overtemperature alarm
If the collector probe exceeds the value of parameter S12 (default 130°C), there is an alarm condition E10 which blocks the solar circulator. The hysteresis to return from the alarm condition is given by parameter S08 (default 2°C). If an alarm is triggered, operation of the heat pump is guaranteed.
17.4.4DHW overtemperature alarm
If the temperature of the DHW storage tank exceeds the parameter S10 (default 80°C), the alarm E50 is triggered. The hysteresis to return from the alarm condition is given by parameter S11 (default 2°C). If an alarm is triggered, operation of the heat pump is guaranteed.
17.4.5Solar exhaust valve
If alarms E10 and E50 are triggered simultaneously, the solar exhaust valve will be activated. It is recommended to connect the output of terminals 8.1 (phase) 8.2 (neutral) to a timed relay to manage the flow of the exhaust valve. If any doubts arise, contact our headquarters.
17.4.6Disposal of solar tank heat
The solar circulator runs to dissipate excess heat in the storage tank by exploiting the solar collector if both of the following conditions are met: -The temperature of the DHW storage tank is higher than parameter S15 (default 60°C); -The temperature of the solar collector is lower than 35°C (parameter S13 parameter S14).
The solar collector is off when at least one of the following conditions is met:
-The temperature of the DHW storage tank is lower than parameter S15 (default 60°C). -The temperature of the collector exceeds the parameter S13 (default 40°C), as conditions are no longer in place for proper dissipation of the heat.
17.4.7Antifreeze
Function active if the parameter S01 = 1. If the temperature of the solar collecor is lower than parameter S07 (default 5°C), the solar circulator is activated in antifreeze mode.

i-290 Inverter air/water heat pumps with axial fans
This protection is only enabled with the machine Off. The function is inhibited if the temperature of the DHW storage tank is lower than the value defined in parameter S16 (default 20°C). This regulator also works with the unit Off. Setting the parameter S01 = 2, the antifreeze function is never active (for example because the solar plant is supplied with glycol). Be careful as enabling this function could damage the entire system. Note:
· Solar integration is NOT managed if the controller of the unit is OFF. · The remote digital input OFF has no effect on solar management. · During first ignition, check that the probe of the solar collector measures a temperature lower than 160°C and that this temperature corre-
sponds to that read on the controller of the internal unit. · Solar circulator live output 230V ac, 50Hz, 2A (AC1). · For higher absorptions, connect the output to the contactor coil. · Factory-set parameters for solar management, any other configurations are the responsibility of the user and/or installer. The company
excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual.
18. TABLES OF PERMITTED SETUPS FOR USER AND INSTALLER
CAUTION: All the operations with INSTALLER visibility must be carried out by QUALIFIED PERSONNEL. Not all of the configurations can be activated and/or modified at the same time. Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters. The company excludes any contractual and extra contractual liability for damage caused to persons, animals or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or superficial reading of the information contained in this manual. We shall not be held liable for any breakage or malfunctioning caused by third parties changing the default parameters if not expressly authorised to do so. The following is the table of the allowed configurations; not all of them can be selected simultaneously. Values other than the default values can jeopardise proper operation of the unit. If in doubt on which value to set, contact our headquarters.
38

i-290 Inverter air/water heat pumps with axial fans

Parameter

Description

Coo

First cooling setpoint

Hea

First heating setpoint

Unit Default Range

°C 7.0

25÷Coo2

°C 45.0 Hea2÷H01

San

Sanitary setpoint

°C 48.0 25÷H01

Coo2 Second cooling setpoint °C 18.0 Coo÷25

Hea2 Second heating setpoint °C 35.0 25÷Hea

*rCOO

Mixing point

valve

summer

set-

°C

15.0

-50÷80

*rHEA Mixing valve winter setpoint °C 30.0 -50÷80

San2

Second sanitary setpoint °C

45.0

0÷80

H01

Maximum heating setpoint °C 60.0 -50÷80

H04

Mnimum cooling setpoint °C 5.0

-50÷80

H10

Sanitary function enabling /

0÷6

H17

Input configuration Analogue ST6

0÷49

H18

Input configuration Analogue ST7

0÷49

H22

0-10vDC ration

live

input

configu-

Analogue ST11

*H27

Input configuration Analogue ST5E

*H28

Input configuration Analogue ST6E

*H29

Input configuration Analogue ST7E

*H30

Input configuration Analogue ST8E

H46

Input configuration Digital ID2

H47

Input configuration Digital ID3

0÷49
0÷49 0÷49 0÷49 0÷49 0÷30 0÷30

H53

Input ID9

configuration

Digital

0÷30

*H60

Input ID6E

configuration

Digital

*H61

Input ID7E

configuration

Digital

*H62

Input ID8E

configuration

Digital

*H63

IDnipguittalcIoDn9fiEguration

0÷30 0÷30 0÷30 0÷30

H75

Digital inputs polarity

0÷255

H76

Digital inputs polarity

0÷255

H81

Output configuration In DO3 power

H82

Output configuration In DO4 power

H83

Output configuration In DO5 power

0÷48 0÷48 0÷48

Visibility

Allowed configurations: Description

Notes

If sanitary function active. See par. 10.2

Config if Gi accessory present

See par. 10.2

0 = Input disabled 6 = Domestic hot water probe

0 = Input disabled

41 = Remote water temperature

probe

0 = Input disabled 40 = Plant setpoint decalibration

0 = Input disabled 44 = Mixer probe

Only if Gi accessory present

0 = Input disabled 39 = Solar storage tank probe

Only if Gi accessory present

0 = Input disabled 38 = Solar collector probe

Only if Gi accessory present

0 = Input disabled 3 = Summer/winter mode change

0 = Input disabled 2 = Remote On / Off

0 = Input disabled

2215== HSizlemncine/dmvaexrsrieomn ote 26 = Double set-point call

28 = DHW thermostat call

Only if Gi accessory present

019==Inrpouotmditshaebrlmedostat

Only if Gi accessory present

0 = Digital inputs N.A.

1 = ID1 polarity inverted

2 = ID2 polarity inverted

4 = ID3 polarity inverted

8 = ID4 polarity inverted 16 = ID5 polarity inverted

32 = ID6 polarity inverted

64 = ID7 polarity inverted

128 = ID8 polarity inverted

0 = Digital inputs N.A.

12 == IIDD910ppoolalrairtiytyininvevretretded

4 = ID1E1 polarity inverted

8 = ID2E1 polarity inverted

16 = ID3E1 polarity inverted

32 = ID4E1 polarity inverted

64 = ID5E1 polarity inverted

128 = ID6E1 polarity inverted

022==OPultapnuttindtiseagbraletidon heater 26 = DHW integration heater

0 = Output disabled = Resistenza scambiatore

0 = Output disabled = Base resistance

i-290 Inverter air/water heat pumps with axial fans

Parameter

Description

H84

Output configuration In DO6 power

H85

OInuDtpOu7t pcoownfeigruration

*H86 *H87 *H88 *H89 *H90

Output configuration In voltage DO1E Output configuration In voltage DO2E Output configuration In voltage DO3E Output configuration In voltage DO4E Output configuration In voltage DO5E

Unit Default Range

0÷48

0÷48 0÷48 0÷48 0÷48 0÷48

H100 Digital output polarity

0÷255

H101 Digital output polarity

0÷255

H124 Serial baud rate

baud 1

0÷3

H125 Serial parity

H126 Serial address

H129 Enable second setpoint

H130

Heating with DHW storage tank

OFF state deactivation with

H136 ID presence ON/OFF re- /

mote

H138

Enabling second for DHW

set

point

H141

Priority communication channels Modbus

H142

MODBUS 2 serial baud rate (CN12 - CN13)

H143
H144 A08 b01 b02 b04 b06
40

Parity and MODBUS

Stop

Bit

serial

Serial address for MODBUS /

Antifreeze alarm activation setting

°C

Compressor band in cold

regulation °C

Compressor band in hot

regulation °C

Radiant panels ing time

valve

switch-

sec

Sanitary valve stroke time sec 45

0÷3
0÷200 0÷4 0÷1
0÷1 0÷4 0÷1
0÷3
0÷3
0÷127 -127÷127 0,5÷5,0 0,5÷5,0 0÷600 0÷255

Visibility

Allowed configurations: Description

Notes

0 = Output disabled 6 = DHW valve

0 = Output disabled

25 = Double set-point valve

29 = Boiler enabling

2341 = =AlarSmumwmarenri/nwginter operating

mode warning

21 = Defrost warning

47 = Machine block warning

0= Output disabled 34= Valve opening command

Only if Gi accessory present

0= Output disabled 35= Valve closing command

Only if Gi accessory present

0 = Output disabled 30 = Solar circulator

Only if Gi accessory present

0 = Output disabled 45 = Solar exhaust valve

Only if Gi accessory present

0 = Output disabled 43 = Secondary circulator

Only if Gi accessory present

0 = Digital inputs N.O.

1 = Inverted polarity of DO1

2 = Reversed polarity of DO2 48 == RReevveerrsseedd ppoollaarriittyy ooff DDOO34 16 = Reversed polarity of DO5 32 = Reversed polarity of DO6

To reverse more than one polarity, do the sum of those you want to invert

64 = Reversed polarity of DO7

128 = Reversed polarity of DOE1

0 = Digital inputs N.A.

1 = Reversed polarity of DO2E 24 == RReevveerrsseedd ppoollaarriittyy ooff DDOO34EE 8 = Reversed polarity of DO5E 16 = Reversed polarity of DO6E

To reverse more than one polarity, do the sum of those you want to invert

32 = Reversed polarity of DO7E

0=4800 baud

1=9600 baud 2=19200 baud

3=38400 baud

0=none parity, 2 stop bits

1=odd parity, 1 stop bit 2=even parity, 1 stop bit

3=none parity, 1stop bit

In the cascade configuration, assign

a different address to each control-

ler.

0 = Normal operation

1 = In Heating, machine always

turned towards DHW

01 == PPrriioorriittyyoonncchhaannnneell21(C(CNN1124-N) 13)

0 = 4'800 Baud

1 = 9'600 Baud 2 = 19'200 Baud

3 = 38'400 Baud

0 = No parity, 2 Stop bits

1 = ODD Parity, 1 Stop Bit 2 = EVEN parity, 1 Stop Bit

3 = No parity, 1 Stop Bit

0 = same address as Serial Mocbus 1 (H126)

Different values can jeopardise proper operation of the unit

i-290 Inverter air/water heat pumps with axial fans

Parameter

Description

Unit

b08

Enable dynamic setting

b09

Maximum cooling offset °C

b10

Maximum heating offset °C

b11

tCuoroelisnegttionugtdoor tempera- °C

b12

Heating outdoor ture setting

tempera-

°C

b13

Cooling temperature delta °C

b14

Heating temperature delta °C

b15

t0i-n1g0dVecaanlaibloragtuioenibnapnudt set- °C

b21

System water reversing valve switching time

sec

b22

Plant probe temperature control cut-off hysteresis

°C

b24

Maximum T,set pressors restart

for

com-

°C

b25

Compressor esis

cut-on

hyster-

°C

Enabling

compressor

b30

switch-off satisfied

with

room

call

P01

Pduelmayp ON compressor ON sec

P02

Pump OFF compressor OFF delay

min

Default Range

0÷1

3.0

-50.0÷80.0

-3.0

-50.0÷80.0

-127÷127

15
-10.0 10.0 5.0

-127÷127
-50.0÷80.0 -50.0÷80.0 0.0÷10.0

0÷600

5.0

0.0÷25.5

8.0

0.0÷25.5

2.0

0.0÷25.5

0÷1

0÷255

2.0

0÷25.5

P03

Pump operating mode

0÷1

P04

Pump setting in antifreeze °C 5

-15÷15

P05

Pump freeze

hysteresis

anti-

°C

2.0

0.0÷15.0

P06

Set delta T water pump in heating

°C

4°C

0÷255

P07

Maximum pump speed

95%

65÷95

P08

Minimum pump speed

% 75% 50÷95

P09

Modulating pump inlet/outlet water delta T setting

°C

2.0

0÷15

P16

cInatlearcvtaivl abteiotwnseoenf t2heppeurimodpi- min 0

P17

Operating time of the pump in periodical mode

sec

0÷600 0÷255

r02

Antifreeze heaters setpoint in heating mode

°C

3÷6

r03

Antifreeze heaters setpoint in cooling mode

°C

3÷6

r06

Antifreeze heaters delta °C 2.0

0.0÷25.5

r08

Operation in upper limit

substitution °C

-20

-20÷50

r09

Hysteresis blockage

for

heat

pump

°C

1,0

0,0 ÷10,0

r10

Plant integration enabling /

0÷1

r11

Plant delta

integration

heater °C

0.5

0,0÷25.5

r12

Plant/heat pump integration heater activation delay

min

0÷255

Compressor bypass on

r14

system with sanitary ing element active

heat-

0÷1

r15

DHW integration enabling /

0÷2

Visibility
I I I
I

Allowed configurations: Description

I I I I

0 = function disable 1 = function active

I
I I
l l l I
I
I

Respect r22 r28 r08

Notes
The pump is always on if the antifreeze heaters are active.
Only change in the presence of glycol water. Contact our headquarters. Only change in the presence of glycol water. Contact our headquarters. Only change in the presence of glycol wheaatderq.uaCrotenrtsa.ct our Do not modify this value, as it could jeopardise operation of the unit

0 = Function disabled 1 = Function enabled

r14 = 1 during activation tary heating elements is

noof tthpeersmaniti--

ted the use of plant-side compres-

sors is not permitted

0 = Function disabled 1 = Function enabled

i-290 Inverter air/water heat pumps with axial fans

Parameter

Description

Unit

r16

DHW/heat tion heater

apcutimvaptioinntdeeglaray-

min

r19

Dtivuartaitoionn of tray heater ac- min

since last defrost

Enables plant side mitiga-

r21

tion with

heaters

defrost /

mode

Default Range

0÷255

0÷1

r22

Joint operation bracket I upper limit

°C

-16÷50

r23

Type of use of boiler

0÷6

r24

Type of use of integration heaters

0÷3

r25

Disinfection setpoint

°C 80

0÷100

r26

Disinfection duration

min 12

0÷255

r27

Heat pump setpoint in disinfection

°C

55.0

-500÷800

r28

Joint operation upper limit

bracket

°C

-7

-16÷50

First setpoint temperature

r29

offset for boiler and plant °C 0

heaters (HEA)

r30

Stuerceonodffsseettpfooirntboteilmerpearnad- °C

plant heater (HEA2)

r31

Teer manpderDaHtuWrehoefafsteertsfo(SrAbNo)il- °C

r32

Boiler supply

r33

Pump management heaters active

with /

0÷100
0÷100 0÷100 0÷3 0÷3

r34

Disinfection day

0÷7

r35

Disinfection time (minute of the day)

0÷1439

r36

Anti-loop time operation

on sanitary

min

0÷255

r37

Boiler operation in cooling + DHW mode

0÷2

r38

Heat pump blockage old for high T

thresh-

°C

-127÷127

r39

Heat pump blockage threshold for high Text in heat

°C

-127÷127

b24

Maximum compressor cuton delta

°C

b24

Compressor cut-on delta °C 2

0÷25,5 2,0÷25,5

Visibility I

Allowed configurations: Description

0= heater activation regardless of defrost.

Notes

0= Function disabled 1= Function enabled

Respect r22 r28 r08

I I l l l

Respect r22 r28 r08

Do not modify this value, as it could jeopardise operation of the unit Do not modify this value, as it could jeopardise operation of the unit

0 = Disabled

1 = Monday

2 = Tuesday

3 = Wednesday 4 = Thurday

5 = Friday

6 = Saturday

7 = Sunday

Control to prevent

the machine remain in sanitary productdieofniniitnedlyefinibteelcyauisne-

dseotepsoninott. reach the

Craomntertoelr aRct3iv6e ferent from 0.

isif In

tdphiaifs--

case, the time of r36

is counted since the

ctoomwporrekssinorthestaDrHteWd

mode. If the tion of the

DprHoWducis-

nr3o6t fminiinshueteds, wtithheinn

you exit forced out of

sanitary production.

0 = Boiler not used

1 = Boiler used in integration 2 = Boiler does DHW and PDC does

plant.

i-290 Inverter air/water heat pumps with axial fans

Parameter

Description

Unit

d04

Defrost output pressure bar

d08

Minimum time between defrost and next

min

L02

User enablement for min./ max. Hz function

L03

Active min./max. Hz

s01

Solar thermal enabling

s02

Solar T

°C

s03

Solar hysteresis

°C

s04

Maximum ture

solar

tempera-

°C

s05

Pump on time in maximum solar temperature

sec

s06

Pump off time in max. solar temp

sec

s07

Solar antifreeze set

°C

s08

Solar antifreeze hysteresis °C

s09

Constant for calculating solar power output

s10

Maximum solar DHW storage temperature thresold

°C

s11

Solar sanitary hysteresis °C

s12

Solar collector overfill alarm threshold

°C

Minimum temperature

s13

threshold collector for acti- °C

vation solar

s14

Hysteresis ing

for

sanitary

cool-

°C

s15

Sanitary cooling threshold °C

s16

Mthirneismoludm colletecmtopr eraatnutrie- °C

freeze storage

L02

User enablement for min./ max. Hz function

L03

Active min./max. Hz

*i01

Valve opening time

sec

*i02 *i03 *i04 *i05 *i06 Ac09 Ac10
Ac11
Ac12

Interval between rections

two

cor-

sec

PID proportional band

PID integral time

sec

PID derivative time

sec

Radiant panel configuration /

Flow-meter minimum water flow rate

l/min

Flowmeter outlet minium flow rate

the

Volt

Maximum flowmeter flow rate (0106, 0109) Maximum flowmeter flow l/min rate (0112, 0115,0118)

Flow meter outlet maximum flow rate

the

Volt

Default Range

24.0 -500÷800

0÷255

0÷1

0÷7

0÷2

0÷25.5

0÷255

-127÷127

0÷25.5

0÷999

0÷255

0÷25.5

0÷255

0÷25.5

0÷255

0÷1

0÷7

0÷600

0÷80.0

0÷2000

0÷25.5

0÷3

0.0

0÷100

0.0

0÷100

50.0 0÷800

85.0 0÷800

0.0

0÷100

(*) If Gi module is present

Visibility l l
I I l l l l
l
l l l l
l l l

Allowed configurations: Description

l l l

I I l l l l l l l
l
See par. "Flowmeter" l

Notes

19. ALARMS
By placing the controller in OFF mode, the alarms reset and the counts of the relative hour interventions are also reset. If the alarms are still triggered when switching the unit back on, contact technical assistance. The values indicated below could be subject to updates. If you have any doubts, contact our headquarters.
19.1[E006] FLOWMETER
The water side flowmeter is already installed inside the unit and MUST NOT be tampered with or bypassed in any way. The flow switch is bypassed for 10 seconds after the unit is switched on. When the bypass time has elapsed, you must evaluate the status of the digital input, if active, the flow is considered present. If the flow is found to be missing for 5 seconds, the alarm is triggered and the circulator switches on for 120 seconds.
43

i-290 Inverter air/water heat pumps with axial fans
If the alarm triggers more than 3 times an hour, it must be reset manually. The alarm does not trigger in the following conditions:
· During domestic hot water production; · During the plant venting cycle function.
19.2[E018] HIGH-TEMPERATURE
If the water delivery probe detects a value higher than 65°C for longer than 50 seconds, the alarm is active only in chiller mode. It deactivates when the temperature returns below 62°C.
19.3[E020] INCONGRUENT PRESSURES
For compressor enabled for more than 150 seconds, the suction pressure probe detect a pressure higher than the condensation pressure probe, the alarm displayed is E020. The alarm is not resettable (it is necessary to cut the power supply to eliminate the alarm). This alarm is not in defrosting mode.
19.4[E005] ANTIFREEZE
If the outlet water probe has a value lower than A08 (3°C), the alarm is active. It deactivates if the temperature recorded by the probe is higher than +6°C. The alarm is bypassed for 120 seconds from switch on in heating mode.
19.5[E611÷E681] PROBE ALARMS
The alarm is triggered if any connected or enabled probe is short-circuited or interrupted. The alarm also triggers if the upper limit (100°C) or the lower limit (-50°C) of the probes is exceeded. A probe figured as sanitary probe will not trigger any alarms if domestic hot water is not enabled. NOTE: If the pressure switch on the machine detects a pressure exceeding 30,5 bar the driver and the compressor are powered off and probe error E641 is displayed (Compressor discharge probe fault). The alarm is cleared when the pressure drops below 23 bar.
19.6[E801] TIMEOUT INVERTER
When the machine's controller does not communicate with the driver board of the compressor, a timeout alarm is triggered to avoid losing control of the system.
19.7[E851 ÷E971] INVERTER
The inverter has its own list of alarms.
19.8[E00] REMOTE ON/OFF (WARNING)
If the unit is controlled by a remote digital input. See par. 10.4.1
19.9[E001] HIGH-PRESSURE
If the pressure transducer on the unit detects a pressure higher than 30,3 bar the alarm is triggered. In this case the compressor is blocked immediately. The alarm is reset when the pressure drops below 21,3 bar. If the alarm triggers more than 3 times an hour, it must be reset manually.
19.10[E002] LOW-PRESSURE
In chiller mode, if the pressure transducer on the unit detects a pressure lower than 1,7 bar, the alarm is triggered. In heat pump mode, if the pressure transducer on the unit detects a pressure lower than 0,7 bar, the alarm is triggered. The alarm is reset when the pressure rises 2.0 bar above the triggering threshold. A bypass time of 60 seconds is counted every time the compressor is activated. When the alarm is triggered, it blocks the compressors of the circuit. The alarm is reset manually if it triggers 3 times an hour.
19.11[E008] DRIVER LIMITATION
If the compressor does not reach the speed at the intended ramp value within 30 minutes, the alarm is triggered and the compressor switches off for safety purposes. The alarm is reset manually if it triggers 3 times an hour.
19.12[E041] 4-WAY VALVE
Manually reset alarm, it identifies malfunctioning of the 4-way reversing valve. The alarm does not trigger for a bypass time of approximately 180 seconds from start-up of the compressor.
· In heating and sanitary mode, the alarm is triggered when, the bypass time having elapsed, the water delivery temperature is lower than the water return temperature of the heat pump - 1°C.
· In cooling mode, the alarm is triggered when, the bypass time having elapsed, the water delivery temperature is higher than the water return temperature of the heat pump + 1°C.
19.13POWER FAILURE
When restored: · The instrument goes back to the condition it was in prior to the power failure · If a defrost cycle is in progress, it is cancelled · All of the timers in progress are cancelled and reinitialized
44

i-290 Inverter air/water heat pumps with axial fans

19.14UTILITIES BLOCK ALARM TABLE

Code E00 E001 E002 E005 E006 E008 E009 E010 E018 E020 E041 E050 E101 E611 E621 E631 E641 E651 *E652 E661 *E662 E671 *E672 E691 E701 E711 E801 E821 E831 E841 E851 E861 E871 E881 E891 E901 E911 E921 E931 E941 E951 E961 E971 E981

DESCRIPTION Remote off
High pressure alarm
Low pressure alarm Antifreeze alarm Flow alarm
Forced compressor shutdown for luck of lubrication Discharge high temperature alarm
Solar collector high temperature alarm Cooling high temperature alarm
Inverted trasductors pressure alarm Incongruent temperature alarm
DHW storage tank high temperature alarm Communication timeout with Slave 1
Water inlet probe failure
Water outlet probe failure Compressor intake probe failure Compressor discharge probe fault / high pressure switch trip
Outdoor air probe failure
Mixer probe failure DHW probe failure Solar storage tank probe failure Plant remote probe failure Solar collector probe failure
Low pressure transducer failure High pressure probe failure
Voltage input failure 0-10V DC Inverter timeout
IPM module overcurrent PFC module overheating Inverter abnormal voltage DC Bus side Inverter Hardware problem Inverter current too high High temperature IPM module Supply voltage out of limits One or more compressor supply phases absent
Inverter model error
Inverter overload error Inverter PFC module overcurrent
Internal communication error PFC model fault
Inverter board probe error Abnormal condition EEPROM error High pressure inverter

(*) If Gi module present

20. MODBUS VARIABLES
The controller is configured as follows by default:
BAUD RATE PARITY DATA BIT STOP BIT
DEVICE ID

9600 EVEN
8 1 1

Block Machine Machine Machine Machine Machine Machine Machine Solar pump Machine Machine/sanitary Machine
Machine Machine Machine Machine Machine Machine Machine Machine Machine Machine Machine Machine Machine Machine Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor Compressor

i-290 Inverter air/water heat pumps with axial fans

To configure the Modbus communication according to your requirements, you must modify the following logs:

H124 : BAUD RATE

4800

9600

19200

38400

0 1 2 3
H126 : DEVICE ID

H125 : PARITY, STOP BIT

NONE, 2 bit ODD, 1 bit EVEN, 1 bit NONE, 1 bit
1 ÷ 200

Modbus comands:

READING WRITING

HOLDING REGISTER 6-16

i-290 Inverter air/water heat pumps with axial fans

INT

BYTE (H) -

BYTE (L) -

BYTE (H) -

BYTE (L) -

80 ÷ 97

ASCII

444

INT

1089

INT

200

INT

7201 BIT MASK 0

7200 7201

INT

BIT MASK 1

7203 7204 7205 7206 7207 7208
7201

°C/10

BIT MASK 2

7202 7217

BIT MASK 0 BIT MASK 0

7201 7202 7201 7202 7201

BIT MASK 3 BIT MASK 1 BIT MASK 4 BIT MASK 2 BIT MASK 5

7202 7216

BIT MASK 3 5
BIT MASK 6

7202 BIT MASK 5

7202 BIT MASK 6

R/W Range

Name

R R

Firmawatrioeninforma-

Description Firmaware versione Firmware release Firmware sub-release Firmware creation day Firmaware creation month Firmware creation year

Note

Serial number

Registration number

0 ÷ 800

Water flow rate

R/W 1 ÷ 200

Serial address

Modbus serial ID

(0) Stand by

(1) Cooling

(2) Heating (4)Only sanitary mode¹

Reading values of the machine status

(5) Cooling + Sanitary¹

(6) Cooling + Sanitary¹

R/W

Machine settings

Enablement of writing the machine status remotely

Necessary for the operation of the reg.
7200.

(0) Stand by (1) Cooling (2) Heating (4) Only sanitary¹ (5) Cooling + Sanitary¹ (6) Heating + Sanitary¹

The writing values that are not allowed at this address can olepaedratotiounnse,xspoekceteedp
only those values that awreriatilnlogw. ed in

R/W

Enablemesnttaotufswrreitminogtethlye machine

Necessary for the operation of the reg.
7203/7208.

R/W 5.0 ÷ 23.0

Cooling

R/W 25.0 ÷ 55.0R/W 25.0 ÷ 55.0

Setpoint

Heating Santary

R/W 5.0 ÷ 23.0

Second cooling

R/W 25.0 ÷ 55.0

Second heating

R/W 0.0 ÷ 80.0

DHW preparer

R/W

Enabling the switching to the second setpoint

Necessary for the operation of bit 0 of
reg. 7202.

Second setpoint

0=primary setpoints, 1=secondary setpoint

Writing value

0=primary setpoints, 1=secondary setpoint

Reading value

Necessary for the

R/W

Room temperature call

Enablement of remote room call writing operation of bit 1 of reg. 7202.

R/W

Forced room temperature call remotely

R/W

Sanitary call

Enablement of remote sanitary call writing

Necessary for the operation of bit 1 of
reg. 7202.

R/W

Forced remote sanitary mode call

R/W

Enablement of anti-legionella cycle remotely

Necessary for the operation of bit 3 of
reg. 7202.

R/W

Anti-Legionella ²
Plant air-vent Santary disablig

Remote anti-legionella cycle request activation

The bit must be 1 for the entire cycle
period.

Anti-legionella cycle in progress

Anti-legionella cycle failed or stopped

It remains at 1 until the next cycle, or it rebsoeatrsditissetluf rwnheednotfhf.e

Forced plant air-vent

Only if the machine is in Stand By (0).

Sanitary call prohibition (without exiting from the actual mode + SAN function)

Active only ting of bit

if 3

itsh7e2s0e1t-

(when the room

temp. call is also

managed remotely).

i-290 Inverter air/water heat pumps with axial fans

7214 BIT MASK 13

8000 kW/100 -

8001 kW/100 -

8002 kW/100 -

8003 kW/100 -

8004 kW/100 -

8005 kWh/10 -

8006

kWh

8007 kWh*10

8008 kWh/10

8009

kWh

8010 kWh*10

8011 kWh/10 -

8012

kWh

8013 kWh*10

8014 kWh/10

8015

kWh

8016 kWh*10

BYTE (H) -

BYTE (L) -

239

BYTE (L) -

305

ora

307

ora

309

ora

313

ora

315

ora

317

ora

253

°C/10

254

°C/10

626

°C/10

627

°C/10

400

°C/10

401

°C/10

405

°C/10

422

°C/10

428

°C/10

433

°C/10

434

°C/10

435

°C/10

437

°C/10

438

°C/10

440

°C/10

443

°C/10

447

°C/10

20422

°C/10

20433

°C/10

20434

°C/10

20435

°C/10

Range -
-
-
-
-
-
-

Name Defrosting
Power
Energy
SG-Ready Operating hours Temperature trans-
ducer
Temperature ³

Description

Note

Forced defrosting

Only if the machine is in heating (2-6).

Defrosting on call

Defrosting in progress

Thermal power output

Estimated value in the absence of a flow
meter

Compressor power consumption

Circulator power consumption

Fan power consumption

Total power consumption

Energy consumed yesterday in cooling

Values present only with heat pump
combined with i-CR, e-LITE or Hi-T2 con-
trollers

Energy consumed last month in cooling

Energy consumed last year in cooling

Energy yielded yesterday in cooling

Energy yielded last month in cooling

Energy yielded last year in cooling

Energy consumed yesterday in heating

Energy consumed last month in heating

Energy consumed last year in heating

Energy yielded yesterday in heating

Energy yielded last month in heating

Energy yielded last year in heating

(0) Smart grid management not active

(1) Smart grid logics enabled

(0) SG-00

(1) SG-01

(2) SG-10

(3) SG-11

Compressor 1

Compressor 2

Compressor 3

Compressor 1 circuit 2

Compressor 2 circuit 2

Compressor 3 circuit 2
Evaporation Condensation Evporation circuit 2 Condensation circuit2

Water inlet

Water outlet
DHW Compressor inhlation
Outdoor Compressor discharge 1 Compressor discharge 2 Compressor discharge 3
Solar collector Solar accumulation
Plant remote Radiant panels mixing delivery
DHW preparer recirculation Compressors inhalation (circuit 2) Compressor 1 discharge (circuit 2) Compressor 2 discharge (circuit 2) Compressor 3 discharge (circuit 2)

i-290 Inverter air/water heat pumps with axial fans

406

bar/100 -

414

bar/100 -

20406 bar/100 -

20414 bar/100 -

7000

%/10

7001

%/10

628

%/10

950 BIT MASK 6

951

BIT MASK 9

952

BIT MASK 7

Range -
-
-
-

Name Pressions ³ Analogue output Alarms
Alarms
Alarms

Description High pressure
Low pressure Circuit 2 high pressure
Circuit 2 low pressure Condensation fan Circulating pump
Condensation fan circuit 2 High pressure
Low pressure Compressor thermal protection
Fan thermal protection Frost
Lack of flow DHW preparer low temperature
Lack of lubrication High discharge temperature of Cp1 Solar collector at high temperature Compressor 2 thermal protection
Fan 2 thermal protection Pump thermal protection
High temperature High discharge temperature of Cp2
Inverted pressure transducers Compressor 3 thermal protection
Fan 3 thermal protection Pump 2 thermal protection Incongruent temperatures Poor heat exchange DHW DHW accumulation tank in high tem-
perature I/O module 1 disconnected I/O module 2 disconnected
Probe 1 error Probe 2 error Probe 3 error Probe 4 error Probe 5 error Probe 6 error Probe 7 error Probe 8 error Probe 9 error Probe 10 error Probe 11 error
Module 1 probe 1 error
Module 1 probe 2 error
Module 1 probe 3 error
Module 1 probe 4 error
Module 1 probe 5 error

Note
E001 E002 E003 E004 E005 E006 E007 E008 E009 E010 E013 E014 E016 E018 E019 E020 E023 E024 E026 E041 E042
E050
E101 E102 E611 E621 E631 E641 E651 E661 E671 E681 E691 E701 E711 E612 E622 E632 E642 E652

953

BIT MASK 7

954

BIT MASK 7

955

BIT MASK 5

Range -
-

i-290 Inverter air/water heat pumps with axial fans

Name Alarms
Alarms Alarms

Description Module 1 probe 6 error
Module 1 probe 7 error
Module 1 probe 8 error
Module 1 probe 9 error
Module 1 probe 10 error
Module 1 probe 11 error
Module 2 probe 1 error
Module 2 probe 2 error
Module 2 probe 3 error
Module 2 probe 4 error
Module 2 probe 5 error
Module 2 probe 6 error
Module 2 probe 7 error
Module 2 probe 8 error
Module 2 probe 9 error
Module 2 probe 10 error
Module 2 probe 11 error Link inverter 1 Link inverter 2 Link inverter 3
Hardware fault inverter 1 Hardware fault inverter 2 Hardware fault inverter 3
Overcurrent inverter 1 Overcurrent inverter 2 Overcurrent inverter 3 High temperature inverter 1 High temperature inverter 2 High temperature inverter 3 Bad voltage inverter 1 Bad voltage inverter 2 Bad voltage inverter 3 Phase sequence inverter 1 Phase sequence inverter 2 Phase sequence inverter 3
Model error inverter 1
Model error inverter 2
Model error inverter 3 Overload error inverter 1 Overload error inverter 2 Overload error inverter 3 Overcurrent PFC inverter 1 Overcurrent PFC inverter 2 Overcurrent PFC inverter 3 Internal communication error inverter 1 Internal communication error inverter 2 Internal communication error inverter 3
Fault PFC inverter 1

Note
E662 E672 E682 E692 E702 E712 E613 E623 E633 E643 E653 E663 E673 E683 E693 E703 E713 E801 E802 E803 E851 E852 E853 E861 E862 E863 E871 E872 E873 E881 E882 E883 E891 E892 E893 E901 E902 E903 E911 E912 E913 E921 E922 E923 E931 E932 E933 E941

956

BIT MASK 6

Range -

Name Alarms

Description Fault PFC inverter 2 Fault PFC inverter 3 Probe error inverter 1 Probe error inverter 2 Probe error inverter 3 Abnormal condition inverter 1 Abnormal condition inverter 2 Abnormal condition inverter 3 Inverter 1 EEPROM error Inverter 2 EEPROM error Inverter 3 EEPROM error High discharge temperature of Cp3 Anti-legionella performed correctly Anti-legionella failed or stopped

¹ if enabled ² the cycle is activated only if the DHW (4-5-6) status is terminated by the machine. ³ if the read value is equal to 32766 the probe is not configured, if 32767 the probe is faulty. reset alarms, write the value 0 with the command 6 on any of the registers of the alarms area. the alarms of circuit 2 are mapped in the same way with an offset of 20000 (e.g. 20950). function present on FW with revision 023 and later, up to size 32kW Restart control, write with command 6 the value -3856 (without sign 61680) to register 200, only with compressor stopped.

Note
E942 E943 E951 E952 E953 E961 E962 E963 E971 E972 E973 E029 E060 E061

ADVANTIX SpA Via S. Giuseppe Lavoratore 24,
37040 Arcole (VR) Italy Tel. (+39).045.76.36.585 E-mail: info@advantixspa.it
www.maxa.it

References

Benvenuto in Maxa Air Conditioning: scopri la nostra gamma prodotti - Maxa

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