zehnder ComfoAir Basic 160 Ventilation System User Manual

zehnder ComfoAir Basic 160 Ventilation System

Product Information

The ComfoAir ventilation system is a balanced ventilation system with heat recovery designed to provide energy-efficient ventilation in houses. It extracts pollutants from the kitchen, bathroom, toilet(s), and storage room while blowing in the same amount of fresh air into the living room and bedrooms. The system consists of the unit, duct systems for the supply and exhaust of air, supply valves in the living areas, and exhaust valves in the kitchen, bathroom, toilet, and storage room (if present).

• Safety Instructions
  It is important to follow the safety regulations, warnings, comments, and instructions provided in this document. Non-compliance with these instructions may result in personal injury or damage to the unit. Ensure that gaps under or near doors are never obstructed by furniture, draught excluders, or deep-pile carpet.

• Operating Devices
  The unit is equipped with a display that allows you to set different parameters using the P-menus. The information displayed on the display provides valuable insights into the unit’s operation.

• Warranty and Maintenance
  For any questions, ordering new documents or filters, or maintenance needs, please contact the supplier. The contact details of the main supplier can be found on the rear flap of this document.

• End of Life
  Information on what to do with the unit at the end of its life can be found in this document.

• ECC Declaration of Conformity
  The unit complies with the EEC declaration of conformity.

• Filter Replacement and Valve Cleaning
  This document provides instructions on how to replace the filters of the unit and clean the valves of the ventilation system.

• Maintenance and Malfunction
  Information on when the installer or maintenance mechanic should be contacted for unit maintenance and what to do in the event of a malfunction can be found in this document.

• Disclaimer
  This documentation has been compiled with utmost care, but the publisher cannot be held liable for any damage caused by missing or incorrect information. In case of disputes, the English version of these instructions will be binding.

Product Usage Instructions

1. Ensure that gaps under or near doors are not obstructed by furniture, draught excluders, or deep-pile carpet.
2. Follow the safety regulations, warnings, comments, and instructions provided in this document.
3. Use the display on the unit to set different parameters using the P-menus.
4. Contact the supplier for any questions, ordering new documents or filters, or maintenance needs.
5. Refer to the document for instructions on what to do with the unit at the end of its life.
6. Follow the instructions provided in the document for filter replacement and valve cleaning.
7. Contact the installer or maintenance mechanic as instructed in the document for unit maintenance and in case of a malfunction.

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:

• 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.

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 dis putes the English version of these instructions will be binding.

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).

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.

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.

Available operating devices

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

Reading the display on the unit

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.

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.

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

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.

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.

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.

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.

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.

P menus for the user
A summary of all the accessible P-menus is given below.

Menu P1 > Status of time programmes

Menu P9 > Status of additional programmes

Menu P2 > Setting time delays

reset
| Delay timer for the bathroom switch (to switch to high position).

■ ‘x‘ minutes after operating the bathroom switch, the unit switches to the high setting.

| 0 Min.| 15 Min.| 0 Min.
  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.

| 0 Min.| 120 Min.| 30 Min.
  Only applies to systems fitted with two SA 1-3V, SA 0-3V or SAI Flash switches.|  |  |
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.

| 0 Min.| 120 Min.| 0 Min.
 | 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| 26 weeks| 16 weeks
Only applies to systems fitted with an RFZ swith.| 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.| 20 Min.| 10 Min.
 | If any switch is operated during this lagging time the unit will instantly revert to the ventilation position as set at that time.|  |  |
Only applies to systems fitted with an RFZ swith.| 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.|  |  |
| n/a| 0 Min.| 120 Min.| 30 Min.

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.

Maintenance

• 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.
• 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.

Cleaning or replacing the filters

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.

1. Filter type
   ISO Coarse/ ISO ePM1

2. Remarks
   ISO 16890 compliant

Replacing the internal filters

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.

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 deep-pile 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.

Condensation drain
Ensure that the water seal (u-bend) connected to the domestic waste-water system is always full of water.

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.

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.

Installation/test report

Date|  | Address|
---|---|---|---
Work instruction|  | Town/city|
Commissioning party|  | Project type|
Installed by|  | Residence type|
Gemeten door|  | Unit type|

Return

Room| Position| Required [m 3 /h]| Tested [m3/h]| Type valve| Settings valve
---|---|---|---|---|---
Kitchen|  |  |  |  |
Bathroom|  |  |  |  |
Toilet|  |  |  |  |
…|  |  |  |  |
…|  |  |  |  |
…|  |  |  |  |
Settings unit

P30|
P31|
P32|
P33|

Supply

Room| Position| Required [m 3 /h]| Tested [m3/h]| Type valve| Settings valve
---|---|---|---|---|---
Living room|  |  |  |  |
Bedroom 1|  |  |  |  |
Bedroom 2|  |  |  |  |
Bedroom 3|  |  |  |  |
…|  |  |  |  |
…|  |  |  |  |
…|  |  |  |  |
Settings unit

P34|
P35|
P36|
P37|

Pressure

Maintenance log

2 or 3 months after installation:

6 months after installation:

9 months after installation:

12 months after installation:

2 or 3 months after installation:

Activity| Y8| Y9| Y10| Y11| Y12| Y13| Y14
---|---|---|---|---|---|---|---
Clean the filters|  |  |  |  |  |  |

6 months after installation:

Activity| Y8| Y9| Y10| Y11| Y12| Y13| Y14
---|---|---|---|---|---|---|---
Replace the filters|  |  |  |  |  |  |
Clean the valves|  |  |  |  |  |  |

9 months after installation:

Activity| Y8| Y9| Y10| Y11| Y12| Y13| Y14
---|---|---|---|---|---|---|---
Clean the filters|  |  |  |  |  |  |

12 months after installation:

Activity| Y8| Y9| Y10| Y11| Y12| Y13| Y14
---|---|---|---|---|---|---|---
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| | | |  |  | |

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

• Solutions for a perfect indoor climate | | Zehnder Group Sales International

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