1. GENERAL INFORMATION
The e-LITE device is a Modbus remote control panel featuring a color LCD and capacitive touch screen. It serves as a remote control panel for the machine and includes a local sensor for temperature detection. Its roles include:
- ♨️ Reads heat pump information.
- ⚙️ Sets heat pump working modes and setpoints.
- ? Access to all parameters configuration.
- ? Weekly ambient chronothermostat.
- ?️ Anti-legionella cycle.
- ? Alarm log.
NOTES: It can be configured with only one machine; it is not possible to manage a network of units.
1.1 TECHNICAL DATA
| Parameter | Value |
|---|---|
| Supply voltage | 12Vdc (±10%) |
| Supply frequency | 50/60 Hz |
| Power | 1.8 VA |
| Insulation class | III |
| Protection rating | IP20 |
| Operating ambient temperature | 0°C / +50°C |
| Operating humidity | 5% ÷ 85% |
| Ambient temperature for storage | 0°C ÷ 65°C |
| Ambient humidity for storage | 5% ÷ 85% |
| Overall dimensions | 144.4 x 97.5 x 21 mm |
| Display | Color, graphical 480x272 pix, with touch panel. |
| Transmission | RS485 (ModBus RTU protocol) |
| Standards | EN 60730-2-9, EN 60730-1 |
| Software update | Only microSD HC card (max. 32GB, FAT32 files format) |
| Air temperature probe | Accuracy is +/- 0.5°C; Range 5°C - 35°C |
| (1) Class of the device | 4 |
| (1) Control contribution | 2% |
(1) According to REG UE 2013-811.
Technical data of the 12Vdc power supply, included in the box:
| Parameter | Value |
|---|---|
| Supply voltage | 230Vac |
| Power | 6 VA |
| Overall dimensions | 20 x 51 x 43 mm |
2. EXPLOITATION CONDITIONS
Do not expose the control panel to direct weather conditions (rain, sunlight) and vibrations higher than typical during wheeled transport. Do not use in conditions of condensation and protect from water.
3. CLEANING AND MAINTENANCE PROCEDURES
The outer surface and maintenance of the control panel screen:
- The device should be cleaned with a soft, dry cloth.
- It is not allowed to clean the device with a flammable agent or substance (i.e., benzene or any kind of solvents) or a wet cloth. Such treatment can lead to malfunction of the device.
- It is not allowed to scratch the screen with nails or other sharp objects. It can lead to scratches or damage of the device.
- It is not allowed to clean the device by spraying water on it. If water gets inside the device, it can cause a fire, lead to electrocution, or damage the device.
4. INSTALLATION
The control is intended to be installed on the wall or placed on a flat surface, only in a dry room. The panel cannot be used under water vapor condensation conditions and must be protected against water. The room thermostat must be installed at a height allowing its convenient use, typically 1.5 m over the floor.
In order to reduce interference of temperature measurement by the control panel, avoid sunny places with poor air circulation, close to heating devices, and places directly at doors and windows (typically at least 200 mm from the door edge).
Control panel installation should be done according to the instructions below:
- Disconnect the installation frame (1) from the back of the room thermostat housing (2). The frame is attached to the panel housing with latches. Use a flat screwdriver to detach the frame.
- Using a sharp tool, cut out holes in four places of 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 cable connecting the control panel with the heat pump can be recessed in the wall or can run over its surface. In such a case, the cable should be additionally placed in the cable channel (6) of the installation frame. The cable connecting the panel with the heat pump cannot be conducted along with the cables of the building mains. The cable should not be routed near devices emitting strong electromagnetic fields.
- Drill holes in the wall and using screws (max. Ø 3 mm) fix the installation frame in the selected place on the wall, maintaining its proper position (UP). The spacing of holes can be determined by placing the frame on the wall. Next, fix the panel to the installation frame using latches.
In order to place the control panel on a flat surface, use a dedicated stand.
5. WIRING
You need two cables for the connection between the e-LITE remote control panel and the water chiller/heat pump unit:
- 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 | e-LITE TERMINALS | CHILLER/HEAT PUMP TERMINALS (see documentation relating to the heat pump) | 12 Vdc POWER SUPPLY | NOTES |
|---|---|---|---|---|
| POWER SUPPLY | VCC | X-5.2 (i-32V5) XC-2.2 (i-32V5 Midi) |
SEC, red, + | SHIELDED AND TWISTED CABLE |
| GND | XR+ (i-HPV5) 1A (i-290) |
SEC, blk, - | ||
| COMMUNICATION | D+ | X-5.1 (i-32V5) XC-2.1 (i-32V5 Midi) |
||
| D- | XR- (i-HPV5) 1B (i-290) |
|||
| SHIELDING | PE clamp of the User terminal block |
6. SOFTWARE UPDATE
Software update is possible using only the microSD HC memory card (max. 32 GB, FAT32 files format) inserted into a slot in the control panel housing.
In order to replace the software, insert the memory card into the control panel slot - the software will be replaced automatically after inserting the card. The card should contain the new software in *.pfc format (the new software should be copied directly to the memory card, not to a subdirectory).
7. DISPLAY ICONS
The following is the list of main icons with relative meaning:
| ICON | DESCRIPTION | NOTES |
|---|---|---|
| ♨️ | Heat Pump screen | Opens the heat pump screen (startup screen). |
| ? | DHW screen | Opens the DHW screen. |
| ?️ | Thermostat screen | Opens the thermostat screen. |
| ☰ | Menu | Opens the menu screen. |
| ❄️ | Cooling mode | Heat pump in Cooling mode. |
| ? | Heating mode | Heat pump in Heating mode. |
| ? | DHW mode | Heat pump in Domestic Hot Water mode. |
| ⭐ | Comfort mode | Comfort set-point enabled. |
| ? | Economy mode | Economy set-point enabled. |
| ⚙️ | Compressor | White fixed symbol: compressor Off. White blinking symbol: compressor on call. Azure fixed symbol: compressor working. |
| ? | Circulator | White symbol: circulator Off. Azure symbol: circulator On. |
| ? | Alarm | List of active alarms. |
| ? | ON/OFF | Turns On or Off the Heat pump. |
| ⏰ | Chrono scheduling | Turns On or Off the scheduling mode. |
| ? | Defrost | Blinking symbol if the defrost is in call. Fixed symbol if the defrost is in progress. |
| ⚡ | Anti-freeze heater | The anti-freeze heater is working. |
| ?️ | Anti-legionella | Showed if the Heat pump is doing the anti-legionella cycle. Fixed if the cycle is in progress. Blinking if the cycle is failed. |
8. HEAT PUMP SCREEN
Heat pump settings main screen after the heat pump is turned on.
[Image Description: The screen displays the current time (09:36) and date (25.07.2023). It shows internal temperature (11.5 °C), external temperature (41.2 °C), and inlet water temperature (35.5 °C). Various icons indicate the status of the heat pump, including fan operation, water heating/cooling modes, and active alarms. Numbered elements point to specific information.]
| Number | Description |
|---|---|
| 1 | Time and date |
| 2 | Heat pump status bar (Work modes, defrost, anti-freeze heaters, anti-legionella). The message "NO COMMUNICATION" is shown if there is no communication between the heat pump main control board and e-LITE (in this case, check if the serial configuration is correct). |
| 3 | Main menu |
| 4 | Heat pump screen |
| 5 | DHW screen |
| 6 | Thermostat screen |
| 7 | Active alarms and active forcing |
| 8 | External temperature |
| 9 | Outlet water temperature |
| 10 | Inlet water temperature |
| 11 | Current heat-pump status |
The possible status of the heat-pump are the following:
- ⭐ Manual comfort set-point enabled.
- ? Manual economy set-point enabled.
- ? Manual heat pump in Stand-by mode.
- ⏰⭐ Chronothermostat enabled, with active comfort set-point.
- ⏰? Chronothermostat enabled, with active economy set-point.
- ⏰? Chronothermostat enabled, with active stand-by mode.
- ➡️⭐ Comfort set-point enabled, from digital input forcing (see heat-pump MCO, "second set-point from digital input").
- ➡️? Economy set-point enabled, from digital input forcing (see heat-pump MCO, "second set-point from digital input").
Pressing the ♨️ symbol, the heat pumps work modes are displayed.
Tapping the ⚙️ symbol, the setpoint settings are displayed.
9. DHW SCREEN
[Image Description: The DHW screen shows the current time and date. In the center, the temperature measured by the DHW probe is displayed (e.g., 39.6 °C). On the right, below, the set-point temperature is shown (e.g., 45°C). Icons for menu, settings, and water flow are visible.]
In the center of the screen, the temperature measured by the DHW probe is shown. On the right, below, the set-point temperature is shown. By tapping on this screen, the DHW set-point edit screen is shown.
NOTE: When the DHW is disabled, the message "Domestic Hot Water support turned OFF. Press here to go to settings." is displayed. Tapping this message leads to the settings screen.
[Image Description: The DHW Comfort setpoint screen shows "DHW Comfort setpoint" and a temperature value (e.g., 50°C), with plus and minus controls. A gear symbol is visible for accessing scheduling.]
By pressing the ⚙️ symbol, it is possible to set the anti-legionella scheduling.
The DHW support switch enables/disables the DHW function. The time in which the request for the anti-legionella cycle is sent is one hour. During this period, the DHW temperature must be higher than r27 [°C] (DHW setpoint during anti-legionella cycle), for r26 [minutes] (anti-legionella cycle duration). The positive or negative results of the anti-legionella cycle are stored in the Alarm History menu.
NOTE: See the heat pump MCO, to configure and enable all the resources requested by DHW.
NOTE 2: For the anti-legionella support, DHW support and all the requested resources must be enabled. See the heat pump MCO, to configure and enable all the resources requested by anti-legionella.
10. THERMOSTAT SCREEN
The thermostat function uses the e-LITE internal probe to measure the room temperature. By activating this function, the internal probe will be used to switch the heat pump on or off.
The thermostat call will be sent to the heat pump if:
- The unit is in cooling or heating.
- The internal probe temperature hasn't reached the setpoint yet.
For details of the machine's behavior in the absence of a room call, refer to the machine specifications.
NOTE: See the heat pump MCO, in order to set the types of regulation when the ambient probe is satisfied.
[Image Description: The thermostat screen shows the current time and date. In the center, the temperature measured by the internal probe is displayed (e.g., 21.6 °C). On the right, below, the actual set-point temperature is shown (e.g., 23°C). Icons for menu, settings, and heating/cooling are visible.]
10.1 THERMOSTAT SETPOINT SETTINGS
By tapping on the measured temperature, the thermostat set-point edit screen is shown.
[Image Description: The thermostat setpoint edit screen shows "Thermostat setpoint" and a temperature value (e.g., 23.1°C), with plus and minus controls, and range indicators from 8.0°C to 30.0°C.]
By tapping on the gear symbol, the Thermostat settings are shown:
| Function | Description | Range |
|---|---|---|
| Winter comfort preset | Comfort setpoint temperature for Winter mode. | Depending on heat pump parameters (see heat pump MCO) |
| Winter economy preset | Economy setpoint temperature for Winter mode. | |
| Summer comfort preset | Comfort setpoint temperature for Summer mode. | |
| Summer economy preset | Economy setpoint temperature for Summer mode. | |
| Thermostat hysteresis | After the air setpoint is reached, the thermostat call will be sent to the heat pump again, when the air temperature will: in heating mode: decrease lower than "air setpoint - Thermostat hysteresis" in cooling mode: increase higher than "air setpoint + Thermostat hysteresis" | 0°C - 5°C |
| Panel temperature correction | Correction from the temperature readed by the room probe | -5°C/+5°C |
10.2 THERMOSTAT WORK MODE SETTINGS
On the main thermostat screen, tapping the status symbol on the left displays the thermostat work mode settings:
| ICON | DESCRIPTION | NOTES |
|---|---|---|
| ? | ON/OFF | Turns On or Off the Thermostat function. |
| ⏰ | Chrono scheduling | Turns On or Off the Thermostat scheduling mode. |
| ⭐ | Comfort mode |
|
| ? | Economy mode |
|
By pressing the ? symbol, the season and scheduling menu are displayed.
[Image Description: The scheduling screen shows "Work mode schedule" with options like "Winter installation schedules", "Summer installation schedules", "Summer", and "Winter" toggles. Below, a daily schedule visualization for Monday is shown, divided into 48 segments of 30 minutes. Colored strips indicate different modes: azure/blue for cooling (Eco/Comfort setpoint), orange/red for heating (Eco/Comfort setpoint), and gray for disabled mode. Time is shown from 08:00 to 08:30.]
The strip represents the day, divided into 48 parts. Each part is 30 minutes. It is possible to change the day using the > and < arrows. The upper part represents the plant water outlet enabling, the lower part represents the Domestic Hot Water enabling. The azure, lower strips represent cooling mode, Eco setpoint. The blue, higher strips represent cooling mode, comfort setpoint. The orange, lower strips represent heating mode, Eco setpoint. The red, higher strips represent heating mode, comfort setpoint. The gray strips represent disables mode.
The "copy symbol" ? allows selecting days of the week for which the same program as the showed day should be applied. It's possible to scroll left and right, modifying every single area, by enabling the next symbols (by pressing the respective symbols):
| ICON | DESCRIPTION |
|---|---|
| ❌ | Room temperature OFF. By scrolling, the room temperature thermostat function is disabled. |
| ❄️⭐ | Room temperature with comfort setpoint, in cooling mode. By scrolling, the room temperature with comfort set-point, in cooling mode is enabled. |
| ❄️? | Room temperature with economy setpoint, in cooling mode. By scrolling, the room temperature with economy set-point, in cooling mode is enabled. |
| ?⭐ | Room temperature with comfort setpoint, in heating mode. By scrolling, the room temperature with comfort set-point, in heating mode is enabled. |
| ?? | Room temperature with economy setpoint, in heating mode. By scrolling, the room temperature with economy set-point, in heating mode is enabled. |
11. MAIN MENU
From the home screen, by clicking the menu symbol (below on left), the main menu is shown:
11.1 DIAGNOSTIC INFO
In this area, input and output values and work counters of the heat pump are shown.
NOTE: Here you can also find the Firmware version of the main control board and of the e-LITE.
11.2 ALARM LIST
Active alarm list. For detailed heat pump alarms, see the heat pump MCO.
Tapping the ? symbol, all alarms that are no more active, will be reset.
11.3 ALARM HISTORY
Alarm historical log, with date and hour of alarm start, and alarm stop. In this list, the results of the anti-legionella cycle are saved.
11.4 UNIT SERIAL NUMBER
Heat pump serial number.
11.5 GENERAL SETTINGS
- Time and date
- Language
- Day brightness: percentage of display brightness, during the e-LITE use.
- Night brightness: percentage of display brightness, in stand-by mode.
- Touch sound: enables or disables the tapping sound.
11.6 SERVICE MENU
This menu allows access to the heat pump configurations and functions. Password request is displayed (heat pump passwords). User password: 0000. Based on the level, different menus are shown.
11.6.1 UNIT SETTINGS
The visualized parameters depend on the set password, as described in the heat pump MCO (Par chapter).
11.6.2 UNIT FORCING
Note that the menu is password-protected.
- Reset alarm history in panel: resets e-LITE alarm history.
- Reset alarm history: resets heat pump alarm history (stored on main control board).
- Reboot control board: reboots the heat pump main control board (enabled only when compressor is in stand-by).
- Defrost: forces a manual defrost (see conditions to enable defrost, in heat pump MCO).
- Plant deareation: activation of the circulator to force a plant deareation. Tapping on it, the function will be activated. With the active function, a tap on the name of the forcing will disable it. Note that the command is only accepted by the heat pump if its status is OFF. The heat pump stops this forcing if the function mode changes from OFF to a different mode, even if the entire forcing time has not yet elapsed.
- Pump forcing: This function is used to manually activate the system pump for recirculation with the pump at 100% for 1 hour. Tapping on it, the function will be activated. With the active function, a tap on the name of the forcing will disable it. Note that the command is only accepted by the heat pump if its status is OFF. The heat pump stops this forcing if the function mode changes from OFF to a different mode, even if the entire forcing time has not yet elapsed.
- Solar pump forcing: This function is used to manually activate the solar pump. Tapping on it, the function will be activated. With the active function, a tap on the name of the forcing will disable it. Note that the command is only accepted by the heat pump if its status is OFF. The heat pump stops this forcing if the function mode changes from OFF to a different mode, even if the entire forcing time has not yet elapsed.
NOTE: When a forcing is activated, the main screen will be displayed.
11.6.3 UNIT UPDATE
Note that the menu is password-protected.
- FW UPDATE: update the main control board firmware.
- PAR UPDATE: update the main control board parameters.
- PAR EXPORT: export the main control board parameters and alarm historical.
- PROGRESS: progression status.
