User Manual for zehnder models including: ComfoAir 160, ComfoAir 200, ComfoAir Standard 300, ComfoAir Standard 375, ComfoAir Basic 160 Ventilation System, Ventilation System

10001084712-1220-zw-zw-A4 ComfoAir160 200 300 350 375 Basic User Zehnder-SI EN

ComfoAir Standard 375 vartotojo vadovas

Zehnder ComfoAir Standard 375 vėdinimo įrenginys

ComfoAir Standard 375 vartotojo vadovas - Zehnder


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ComfoAir160 200 300 350 375-Basic-User-Zehnder-SI EN-FINAL
 Decorative radiators  Comfortable indoor ventilation  Heating and cooling ceiling systems  Clean air solutions
Ventilation system ComfoAir Basic
User manual

ComfoAir 160

ComfoAir 200

ComfoAir 350

ComfoAir Standard 300 ComfoAir Standard 375

Foreword

Read this document carefully before use.
This document provides all the information required for safe and optimal operation and maintenance of the ComfoAir 160, 200, 350 and ComfoAir Standard 300, 375. In this document it will be referred to as "the unit". The unit is subject to continuous development and improvement. As a result, the unit may slightly differ from the descriptions.
The following pictograms are used in this document:

Symbol

Bedeutung Point of attention.
Risk of compromised performance or damage to the ventilation system. Risk of personal injury.

Questions Please contact the supplier if you have any questions or would like to order a new document or new filters. The contact details of the main supplier can be found on the rear flap of this document.

The following information can be found in this document:

Information
General information about the ventilation system.
Safety instructions which must be followed.
Operating devices available for the unit.
The meaning of the information displayed on the display of the unit.
Using the display to set different parameters (P-menus).
A summary of all the different parameters (P-menus).
Warranty and liability conditions.
What to do with the unit at the end of its life.
EEC declaration of conformity.
How to replace the filters of the unit.
How to clean the valves of the ventilation system.
When the installer or maintenance mechanic must come by for the maintenance of the unit.
What to do in event of an malfunction.

Chapter 1
1 2 2
2
2
3 3
3 4 4
4
5

All rights reserved. This documentation has been compiled with the utmost care. The publisher cannot be held liable for any damage caused as a result of missing or incorrect information in this document. In case of disputes the English version of these instructions will be binding.
EN - 2

Table of Contents
Foreword...................................................................................................................................................................... 2 1 Introduction and safety .................................................................................................................................................. 4 2 Operation..................................................................................................................................................................... 6
2.1 Available operating devices .................................................................................................................................... 6 2.2 Reading the display on the unit............................................................................................................................... 7 2.3 Reading and setting the comfort temperature ......................................................................................................... 8 2.4 Switching the supply fan on and off ....................................................................................................................... 9 2.5 Setting a overrun timer for the RFZ.......................................................................................................................... 9 2.6 Setting an overrun timer for the SA 1-3V, SA 0-3V or SAI Flash ............................................................................... 10 2.7 Setting an overrun timer for the second SA 1-3V, SA 0-3V or SAI Flash (bathroom switch) ........................................ 10 2.8 Setting a delay timer for the second SA 1-3V, SA 0-3V or SAI Flash (bathroom switch) ............................................. 11 2.9 Setting the delay timer for the filter alert................................................................................................................. 11 2.10 P menus for the user ........................................................................................................................................... 12 3 CE certification and warranty ....................................................................................................................................... 13 4 Maintenance .............................................................................................................................................................. 14 4.1 Cleaning or replacing the filters............................................................................................................................. 14
4.1.1 Replacing the internal filters .......................................................................................................................... 15 4.1.2 Cleaning the internal filters ........................................................................................................................... 16 4.2 Cleaning the valve ............................................................................................................................................... 16 4.3 Condensation drain ............................................................................................................................................. 16 4.4 Maintenance by the installer or maintenance mechanic .......................................................................................... 16 5 Malfunctions............................................................................................................................................................... 16 I Installation/test report ................................................................................................................................................. 17 II Maintenance log ......................................................................................................................................................... 18
3 - EN

1 Introduction and safety
The unit is a balanced ventilation system with heat recovery in order to create energy-efficient ventilation in houses. Balanced ventilation means that pollutants from the kitchen, the bathroom, the toilet(s) and possibly the storage room are extracted, while the same amount of fresh air is blown into the living room and bedrooms. Gaps under or near the doors ensure a good through-flow in the dwelling.
Ensure that the gaps under or near the door are never obstructed. For example by furniture, draught excluders or deep-pile carpet.

A balanced ventilation system consists of: The unit (A); Duct system for the supply of outdoor air (B); Duct system for the exhaust of indoor air (C); Supply valves in the living room and bedrooms (D); Exhaust valves in the kitchen, bathroom, the toilet and (if present) the storage room (E).

CB

A

D E

E

E

D

D

EN - 4

Safety instructions Always follow the safety regulations, warnings, comments and instructions given in this document. Personal injury or damage to the unit can arise from non-compliance with the safety regulations, warnings, comments and instructions in this document.  It is recommended to take out a
maintenance contract so that the device is checked on a regular basis. The supplier can provide a list of registered installers nearby;  The unit may only be installed, connected, rendered operational and maintained by an appropriately approved installer, unless otherwise indicated in this document;  Store the document for the entire working life of the unit;  Instructions with regard to cleaning or replacing the filters must be carefully observed;  When carrying out any work on the unit, make sure the power is disconnected and cannot be inadvertently reconnected;  The unit cannot be opened without using tools.

Use of the unit  The unit may only be used once it has
been properly installed according to the instructions and guidelines given in the installer manual of the unit;  Do not open the casing. The installer makes sure that all components that can cause personal injury are safely located behind the casing;  The unit can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the unit in a safe way and understand the hazards involved.  Children must not play with the unit;  Children must not clean and maintain the unit unsupervised.

5 - EN

2 Operation
How to use and read the operating devices of the unit is mentioned in the document of the operating device. How to use and read the display on the unit is mentioned in this document.

2.1 Available operating devices

One or more of the following operating devices can be present to operate the unit:

Appearance

Name

Functions

Display on unit

Indicating the set ventilation level; Indicating a malfunction or filter alert; Indicating if the bypass is open; Turning the supply fan on and off; Indicating and setting the comfort temperature; Setting the P-menus; Resetting the malfunctions and filter alert.

SA 1-3V SA 0-3V SAI Flash Bathroom switch

The desired ventilation level cannot be set with the display on the unit.
Set the desired ventilation level:
 1 = Low;  2 = Normal;  3 = High;  Overrun timer.
Set the desired ventilation level:
 0 = Off;  1 = Low;  2 = Normal;  3 = High;  Overrun timer.
Set the desired ventilation level:
 1 = Low;  2 = Normal;  3 = High;  Overrun timer.
Indicating a malfunction or filter alert.
Activating the overrun timer.

EN - 6

RFZ ComfoSense

Set the desired ventilation level:
 0 = Off;  1 = Low;  2 = Normal;  3 = High;  = Overrun timer.
Indicating a malfunction or filter alert.
Indicating and setting the desired ventilation level:  = Absent  = Low;  = Normal;  = High;  PARTY TIMER = Overrun timer;  AUTO = Preset programme. Indicating a malfunction or filter alert; Indicating if the bypass, pre heater, ComfoFond-L, preset programme, analogue programme or overrun timer is activated; Turning the supply and/or exhaust fan on and off; Indicating and setting the comfort temperature; Setting the P-menus; Resetting the malfunctions and filter alert; Setting a preset ventilation programme; Setting and showing date and time.

2.2 Reading the display on the unit

Appearance

Description

All lights are off. The power of the unit is turned off.

What to do Turn on the power of the unit.

One number is displayed in the middle of the display. The current ventilation setting is displayed. Possible displayed settings are:
 1 = Low;  2 = Normal;  3 = High.
The letter "A" is displayed in the middle of the display. The current ventilation setting is displayed. The displayed setting is "Absent".

No action required. No action required.

The letter "t" is displayed at the left of the display (with one number in the middle of the display). An overrun timer is activated (and the current ventilation setting is displayed).

No action required.

A point is displayed next to the middle of the display (with one number in the middle of the display). The bypass is opened (and the current ventilation setting is displayed).

No action required.

The letters "FiL" and "tEr" are alternately flashing on the display. The "internal filter malfunction" is displayed..

Clean or replace the filters as mentioned in the "Maintenance" chapter.

The letter "A" is flashing at the left of the display with one or two numbers on the right of the display. The current "malfunction code" is displayed.

Contact the installer or maintenance mechanic as mentioned in the "Malfunctions" chapter.

The letter "E" is flashing at the left of the display with one number on the right of the display. The current "malfunction code" is displayed.

Contact the installer or maintenance mechanic as mentioned in the "Malfunctions" chapter.

The letters "EA" are flashing at the left of the display with one number on the right of the display. The current "malfunction code" is displayed.

Contact the installer or maintenance mechanic as mentioned in the "Malfunctions" chapter.

The letter "P" is displayed at the left of the display with one or two numbers on the right of the display. The current chosen "P-menu" is displayed.

No action required.
At this time the lower buttons of the display are not functional.

One, Two or Three numbers are displayed in the right of the display. The current setting of the chosen "P-menu" is displayed.

No action required.
At this time the lower buttons of the display are not functional.

7 - EN

Appearance

Description
Three numbers with a point after the second number are displayed in the display. The current setting of the comfort temperature is displayed.

What to do No action required.

The light above the icon with one arrow is lit. The supply fan is turned off. There is no supply of fresh air.

Do not forget to turn on the supply fan again when the supply fan has been turned off manually.

The light above the icon with two arrows is lit. The supply fan is turned on. There is balanced ventilation.

No action required.

2.3 Reading and setting the comfort temperature
The unit will strive for the most comfortable supply air temperature based on the set comfort temperature.
It is best to set the comfort temperature to the same temperature as the room thermostat (of the central heating system).
The comfort temperature can be set between 12°C and 28°C. How to read or set the comfort temperature on the present operating device can be found in the document of the operating device.

Action on display
1 Press and hold for at
least 3 seconds

Reaction on display***

2 Press

Explanation
Current set comfort temperature is being displayed.
Comfort temperature is increased by 0.5°C.

Or press

Comfort temperature is decreased by 0.5°C.

3 Press

Comfort temperature is confirmed and the display returns to the default screen.

EN - 8

2.4 Switching the supply fan on and off
When required, the supply fan of the unit can be turned off manually. This may be desired to keep out unpleasant odors from outside. Bear in mind that switching off the supply or exhaust fan will temporarily immobilize your dwelling's balanced ventilation system, so do not forget to turn the supply fan on again. How to switch the supply fan on or off on the present operating device can be found in the document of the operating device.
When can the supply fan not be turned off on the display? To prevent air being sucked back from the chimney of a fireplace the unit is fitted with an open fire programme. When needed the installer or maintenance mechanic can turn this programme on. If the open fire programme is turned on the supply fan cannot be turned on or off manually.
When can the supply fan not be turned on? The supply fan cannot only be operated manually but can also be controlled automatically by the unit itself. This occurs in the winter to protect the unit from freezing. If the supply air is too cold for the unit, the unit will automatically switch the supply fan off. In this case the supply fan cannot be turned on manually.

Action on display
1 Press and hold for at
least 3 seconds

Reaction on display

Explanation
The supply fan is turned off.
The light above the button turns green.

2 Press and hold for at
least 3 seconds

The supply fan is turned on.
The light above the button turns green.

The supply fan will not automatically turn back on. Do not forget to turn the supply fan back on later on.

2.5 Setting a overrun timer for the RFZ
The ventilation setting can be increased for a set time using one button on the RFZ. This can be usefull when additional ventilation is needed for a short time like during cooking and showering. How to switch the overrun timer on or off can be found in the document of the RFZ. The RFZ has two overrun timers which must be set separately. The overrun timer for briefly pressing the RFZ must be set in P-menu 25. This timer can be set between 1 minute and 10 minutes. The overrun timer for pressing and holding the RFZ must be set in P-menu 26. This timer can be set between 1 minute and 120 minutes.

Action on display
1 Press

Reaction on display***

Explanation
The main P-menus are being entered.

2 Press

3 Press

until

P25 or P26

appears

4 Press

5 Press

Or press 6 Press

Press 7 Press

The sub P-menus of the selected P-menu are being entered
The different sub P-menus of the selected P-menu are being displayed.
The selected P-menu is being entered.
Time delay is increased with 1 minute.
Time delay is decreased with 1 minute.
Time delay is confirmed and returned to the sub P-menus of the selected P-menu.
Old settings are restored and returned to the sub P-menus of the selected P-menu.
Returned to the main P-menus.

8 Press

Returned to the default screen.

*** The displayed settings are the standard setting of the unit. This may differ from the actual setting of the unit.

9 - EN

2.6 Setting an overrun timer for the SA 1-3V, SA 0-3V or SAI Flash
The ventilation setting can be increased for a set time. This can be useful when additional ventilation is needed for a short time like during cooking and showering. How to switch the overrun timer on or off can be found in the document of the SA 1-3V, SA 0-3V or SAI Flash. The overrun timer can be set in P-menu 23 between 0 minute and 120 minutes.

Action on display
1 Press

Reaction on display***

Explanation
The main P-menus are being entered.

2 Press

3 Press

until

P23 appears

4 Press

5 Press

Or press 6
Press

Press 7
Press

The sub P-menus of the selected P-menu are being entered
The different sub P-menus of the selected P-menu are being displayed.
The selected P-menu is being entered.
Time delay is increased by 1 minute.
Time delay is decreased by 1 minute.
Time delay is confirmed and returned to the sub P-menus of the selected P-menu.
Old settings are restored and returned to the sub P-menus of the selected P-menu.
Returned to the main P-menus.

8 Press

Returned to the default screen.

2.7 Setting an overrun timer for the second SA 1-3V, SA 0-3V or SAI Flash (bathroom switch)
The ventilation setting can be increased for a set time. This can be useful when additional ventilation is needed for a short time like during cooking and showering. How to switch the overrun timer on or off can be found in the document of the SA 1-3V, SA 0-3V or SAI Flash. The overrun timer can be set in P-menu 22 between 0 minute and 120 minutes.

Action on display
1 Press

Reaction on display***

Explanation
The main P-menus are being entered.

2 Press

3 Press

until

P22 appears

4 Press

5 Press

Or press 6
Press

Press 7
Press

The sub P-menus of the selected P-menu are being entered
The different sub P-menus of the selected P-menu are being displayed.
The selected P-menu is being entered.
Time delay is increased by 1 minute.
Time delay is decreased by 1 minute.
Time delay is confirmed and returned to the sub P-menus of the selected P-menu.
Old settings are restored and returned to the sub P-menus of the selected P-menu.
Returned to the main P-menus.

8 Press

Returned to the default screen.

EN - 10

*** The displayed settings are the standard setting of the unit. This may differ from the actual setting of the unit.

2.8 Setting a delay timer for the second SA 1-3V, SA 0-3V or SAI Flash (bathroom switch)
A high ventilation setting is not always desired, for instance when you only go to the bathroom for a short time. Therefore a delay time, in which the unit will do nothing with the information it receives from the bathroom switch, can be set. How to switch the overrun timer on or off can be found in the document of the SA 1-3V, SA 0-3V or SAI Flash. The delay timer can be set in P-menu 21 between 0 minute and 15 minutes.

Action on display
1 Press

Reaction on display***

Explanation
The main P-menus are being entered.

2 Press
3 Press
4 Press Or press
5 Press
Press
6 Press

The sub P-menus of the selected P-menu are being entered
The selected P-menu is being entered.
Time delay is increased by 1 minute.
Time delay is decreased by 1 minute.
Time delay is confirmed and returned to the sub P-menus of the selected P-menu.
Old settings are restored and returned to the sub P-menus of the selected P-menu.
Returned to the main P-menus.

7 Press

Returned to the default screen.

2.9 Setting the delay timer for the filter alert

How fast the filters of the unit needs cleaning

or replacing depends on the air quality of the

environment.

In the countryside the filters may not pollute as

fast as in urban places. Therefore the filter alert

has an adjustable delay timer. After the delay timer

has run out the following filter malfunctions appear

alternately on the display:

and

.

How to clean or replace the filters is mentioned in

the "Maintenance" chapter. The delay timer can be

set in P-menu 24 between 10 weeks and 25 weeks.

Action on display
1 Press

Reaction on display***

Explanation
The main P-menus are being entered.

2 Press

3 Press

until

P24 appears

4 Press

5 Press

Or press 6
Press

Press 7
Press

The sub P-menus of the selected P-menu are being entered
The different sub P-menus of the selected P-menu are being displayed.
The selected P-menu is being entered.
Time delay is increased by 1 minute.
Time delay is decreased by 1 minute.
Time delay is confirmed and returned to the sub P-menus of the selected P-menu.
Old settings are restored and returned to the sub P-menus of the selected P-menu.
Returned to the main P-menus.

8 Press

Returned to the default screen.

*** The displayed settings are the standard setting of the unit. This may differ from the actual setting of the unit.

11 - EN

2.10 P menus for the user

A summary of all the accessible P-menus is given below. Menu P1 > Status of time programmes

Status

Submenu Description

Activated

P11

Is menu P21 currently active? Yes (1) / No (0)

P12

Is menu P22 currently

Yes (1) / No (0)

active?

P13

Is menu P23 currently

Yes (1) / No (0)

active?

P14

Is menu P24 currently active? Yes (1) / No (0)

P15

Is menu P25 currently active? Yes (1) / No (0)

P16

Is menu P26 currently

Yes (1) / No (0)

active?

Menu P9 > Status of additional programmes

Status

Submenu Description

Activated

P90

Open fire programme active? Yes (1) / No (0)

P91

Bypass open?

Yes (1) / No (0)

P94

Analogue input (0-10V)

Yes (1) / No (0)

active?

P95

Frost protection active?

Yes (1) / No (0)

P96

n/a

Yes (1) / No (0)

P99

Enthalpy programme active? Yes (1) / No (0)

Menu P2 > Setting time delays

Submenu

Description

P21

Delay timer for the bathroom switch (to switch to high

position).

Only applies to systems

 `x` minutes after operating the bathroom switch,

fitted with two SA 1-3V, SA

the unit switches to the high setting.

0-3V or SAI Flash switches.

P22
Only applies to systems fitted with two SA 1-3V, SA 0-3V or SAI Flash switches.

Overrun timer for the bathroom switch (to switch to normal position).  `x` minutes after operating the bathroom switch, the unit
switches back to the normal setting.

P23
Only applies to systems fitted with a SA 1-3V, SA 0-3V or SAI Flash switch.

Overrun timer for ventilation position 3 (using a hardwired 3-position switch).  If ventilation setting 3 (high) is switched on briefly
(< 3 sec), the unit will switch to the high setting for `x' minutes and then automatically returns to the normal setting.

Time delay values Minimum Maximum

0 Min.

15 Min.

General reset
0 Min.

0 Min.

120 Min. 30 Min.

0 Min.

120 Min. 0 Min.

P24
P25 Only applies to systems fitted with an RFZ swith.

If any switch is operated during this lagging time the unit will instantly revert to the ventilation position as set at that time.

Filter warning  `x' weeks after cleaning the filters the "filter dirty" alert
will reappear.

10 weeks

Overrun timer for ventilation setting 3 (using ).  After pressing briefly (< 2 sec.), the unit will switch
to the high setting for `x' minutes and then automatically returns to the normal setting.

1 Min.

26 weeks 20 Min.

16 weeks 10 Min.

P26
Only applies to systems fitted with an RFZ swith.

If any switch is operated during this lagging time the unit will instantly revert to the ventilation position as set at that time.

Overrun timer for ventilation setting 3 (using ).  After pressing continously (> 2 sec.), the unit will
switch to the high setting for `x' minutes and then automatically returns to the normal setting.

1 Min.

120 Min. 30 Min.

If any switch is operated during this lagging time the unit will instantly revert to the ventilation position as set at that time.

P27

n/a

0 Min.

120 Min. 30 Min.

EN - 12

3 CE certification and warranty
Warranty conditions The unit is covered by a manufacturer's warranty for a period of 24 months after fitting up to a maximum of 30 months after the date of manufacture. Warranty claims may only be submitted for material faults and/ or construction faults arising during the warranty period. In the case of a warranty claim, the unit must not be dismantled without written permission from the manufacturer. Spare parts are only covered by the warranty, if they were supplied by the manufacturer and have been installed by an approved installer.
The warranty becomes invalid if: The guarantee period has elapsed; The device is used without filters; Parts are used that have not been supplied by the manufacturer; Non-authorised changes or modifications have been made to the unit. Installation has not been carried out according to the applicable regulations; The defects are due to incorrect connection, inexpert use, or contamination of the system;
On-site (dis)assembly costs are not covered by the terms of the warranty. This also applies to normal wear and tear. Zehnder retains the right to change the construction and/or configuration of its products at any time without being obliged to alter previously delivered products.

Liability The unit has been designed and manufactured for use in balanced ventilation systems incorporating Zehnder heat recovery systems. Any other application is seen as inappropriate use and can result in damage to the unit or personal injury, for which the manufacturer cannot be held liable. The manufacturer is not liable for any damage originating from:
Non-compliance with the safety, operating and maintenance instructions in this document; The use of components not supplied or recommended by the manufacturer. Responsibility for the use of such components lies entirely with the installer; Normal wear and tear.
End of useful life Consult with the supplier about what should be done with the unit at the end of its useful life. If the unit cannot be returned to the supplier, avoid disposing of it with the domestic waste, and ask your local council about the options for recycling the components or processing the materials in an environmentally friendly manner. Furthermore, do not dispose of batteries from the wireless (RF) switches with the normal waste, but bring them to the specially designated disposal locations.

Zehnder Group Nederland B.V. Lingenstraat 2 · 8028 PM Zwolle-NL · Tel.: +31 (0)38-4296911 Handelsregister Zwolle 05022293

13 - EN

4 Maintenance

4.1 Cleaning or replacing the filters

Failure to carry out (periodic) maintenance on the unit ultimately compromises the performance of the ventilation system.
The unit should be inspected and cleaned every 2 years by a specialist. To ensure a hassle free lifespan for your unit, we recommend you take out a service agreement with an expert company.
Ensure the unit has been disconnected from mains power before carrying out any maintenance work.

Replace the filters (at least) every six months and clean the filters every 2 or 3 months.

When indicated on the display you must clean or

replace the filters. The following filter malfunctions

appears alternately on the display:

and

The installer of the unit can provide the necessary new filters.

Filter type ISO Coarse/ ISO ePM1

Remarks ISO 16890 compliant

The power to the unit should not be disconnected unless the unit is to be taken out of service due to a serious malfunction, or for filter replacement or any other compelling reasons.
If the power to the unit is disconnected, mechanical ventilation of the dwelling will cease. This can lead to a build-up of moisture and results in problems with mould.

EN - 14

4.1.1 Replacing the internal filters
Action 1
4 seconds 2

Explanation

Reset the filter error by pressing

on the

display for at least 4 seconds until the filter warning

disappears.

Disconnect the power from the unit.

3 A ComfoAir 160

Remove the handles (A) from the unit. A ComfoAir 200

A
ComfoAir 350 4
B
ComfoAir 160/200 5

A

ComfoAir Standard 300 ComfoAir Standard 375

Remove the dirty filters (B) from the unit.

ComfoAir 350 ComfoAir Standard 300/375

Install the clean filter back into the unit and reconnect the power.
When using the unit for the first time, it is recommended to replace the filters (and clean the valves) first. During the construction phase the ventilation system could have become dirty with building dust.

15 - EN

4.1.2 Cleaning the internal filters
Vacuum the filters (B) with a vacuum cleaner instead of replacing them with new filters.
When using the unit for the first time, it is recommended to clean the filters (and valves) first. During the construction phase the ventilation system could have become dirty with building dust.
4.2 Cleaning the valve
Clean the valves (at least) twice a year. 1. Mark the setting of the valve; 2. Remove the valve from the wall or ceiling; 3. Clean the valve in a solution of soap and warm
water; 4. Rinse the valve thoroughly and wipe dry; 5. Place the valve back WITH EXACTLY THE SAME
SETTING (and IN THE SAME HOLE); 6. Repeat this procedure for the other valves.
Some valves have a filter behind it. If a filter is present clean this in the same way as the valve.
About the valve settings The ventilation air is supplied and discharged by means of valves. Gaps under or near doors in the dwelling ensure that the air flows in the right direction. In order to ensure that the correct ventilation volumes are maintained in the rooms, the following must be observed:
Do not seal the gaps under or near the doors. For example by furniture, draught excluders or deeppile carpet. The gap should be at least 10mm; Do not change the settings of the valves; Do not swap the valves around. The installer will have set all the valves to ensure the optimum performance of the ventilation system. Therefore, do not change the setting of the valves.
4.3 Condensation drain
Ensure that the water seal (u-bend) connected to the domestic waste-water system is always full of water.

4.4 Maintenance by the installer or maintenance mechanic
Not all neccesary maintenance can be done by the user.
Once every 2 years the installer or a maintenance mechanic should come by for the maintenance inside the balanced ventilation system.
Some installers offer a full maintenance contract package where the user maintenance can also be integrated.
5 Malfunctions
In the event of a malfunction, the corresponding malfunction code will be displayed on the display of the unit.
In event of a filter malfunction the filter must be cleaned or replaced as described in the Maintenance chapter. In the event of all other malfunction: 1. Note down the malfunction code that appears on
the display of the unit 2. Note down the unit type.
This is given on the identification plate on the unit near the power supply. 3. Contact the installer or maintenance mechanic and give him the noted information.
The system should not be disconnected from the power supply, unless the unit must be taken out of service due to a serious malfunction, or for filter cleaning/replacement or any other compelling reasons.
If the unit is disconnected from the power supply, mechanical ventilation of the dwelling will cease. This can lead to a build-up of moisture and results in problems with mould.
If the unit is installed in an area with a higher average humidity (such as bathroom or toilet) the probability of condensation on the outside of the unit is high. This is similar to condensation on a window and no action is needed.

EN - 16

I Installation/test report
Date
Work instruction Commissioning party Installed by
Gemeten door

Address
Town/city
Project type Residence type Unit type

Return
Room Kitchen Bathroom Toilet ... ... ...

Position

Required [m3/h]

Tested [m3/h] Type valve Settings valve

Settings unit P30 P31 P32 P33

Total:
Supply
Room Living room Bedroom 1 Bedroom 2 Bedroom 3 ... ... ...

Position

Required [m3/h]

Tested [m3/h] Type valve Settings valve

Settings unit P34 P35 P36 P37

Total:
Pressure
Measured Press pressure Suction pressure
Total:

Supply [Pa]

Return [Pa]

17 - EN

II Maintenance log
2 or 3 months after installation: Activity Clean the filters 6 months after installation: Activity Replace the filters Clean the valves 9 months after installation: Activity Clean the filters
12 months after installation: Activity Replace the filters Clean the valves Inspect and clean the condensation drain Inspect and clean the air ducts Inspect and clean the casing of the unit Inspect and clean the heat exchanger
Inspect and clean the fans
Inspect and clean the pre heater filter

Date

Activity

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Y1

Y2

Y3

Y4

Y5

Y6

Y7

Initials

EN - 18

2 or 3 months after installation:
Activity Clean the filters 6 months after installation:
Activity Replace the filters Clean the valves 9 months after installation: Activity Clean the filters
12 months after installation: Activity Replace the filters Clean the valves Inspect and clean the condensation drain Inspect and clean the air ducts Inspect and clean the casing of the unit Inspect and clean the heat exchanger Inspect and clean the fans Inspect and clean the pre heater filter

Date

Activity

Y8

Y9

Y10

Y11

Y12

Y13

Y14

Y8

Y9

Y10

Y11

Y12

Y13

Y14

Y8

Y9

Y10

Y11

Y12

Y13

Y14

Y8

Y9

Y10

Y11

Y12

Y13

Y14

Initials

19 - EN

ZGNL-Manual_10001084712-40023980, V1220 EN, Subject to change

Zehnder Group Sales International Almweg 34 · 77933 Lahr · Germany T +49 78 21 586-392 · F +49 78 21 586-406 sales.international@zehndergroup.com · www.international.zehnder-systems.com



References

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