Zehnder Rittling ComfoAir 70 Operating Manual And Assembly
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Zehnder Rittling ComfoAir 70 Operating Manual And Assembly

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ComfoAir 70
Operating Manual and Assembly
Instruction for User and Installer
Version: 1.2_10/2014
EN

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Summary of Contents for Zehnder Rittling ComfoAir 70

  • Page 1 ComfoAir 70 Operating Manual and Assembly Instruction for User and Installer Version: 1.2_10/2014...
  • Page 3 Legal provisions All rights reserved. This operating manual has been compiled with the greatest care. However, the editor does not assume any liability for damages resulting from missing or incorrect information contained in this operating manual. We reserve the right to change the content of this manual partially or completely at any time without prior notification.

  • Page 4: Table Of Contents

    1.1.1 Warranty Terms........................7 1.1.2 Liability ............................. 7 Safety ............................7 1.2.1 Intended use..........................7 1.2.1.1 ComfoAir 70 ..........................7 1.2.1.2 Control unit ..........................8 1.2.2 Qualification of the target group ....................8 1.2.2.1 Operators ..........................8 1.2.2.2 Skilled Personnel ........................8 1.2.3...
  • Page 5 3.5.4 Spare Parts ..........................34 3.5.5 Volume Flow Setting using OGS-Interface ................35 Annexes ..........................38 Checklist A Maintenance Works User ..................38 Checklist B Maintenance Works Skilled Personnel ............... 39 Start-up and Handover Certificate ..................40 Air Volume Log ........................41...

  • Page 6: Preamble

    Please observe and follow all specifications and safety guidelines in the operating manual to ensure a safe, proper and economical operation of ComfoAir 70. The object of this operating instruction is ComfoAir 70 in different design variants. Possible accessories are described to the extent as to how important is this for a proper operation.

  • Page 7: Introduction

    1.1 Warranty and Liability 1.1.1 Warranty Terms Zehnder provides 24 months warranty to ComfoAir 70 after the installation or up to a maximum of 30 months after the manufacturing date of ComfoAir 70. Warranty claims can be asserted exclusively for Material error and/or construction error, which have occurred in the warranty period.

  • Page 8: Control Unit

    Use ComfoAir 70 exclusively according to the specifications of the attached documentations and the standards and guidelines, applicable onsite: • Do not mount the device in explosion-prone areas; • Do not use the device to exhaust inflammable or explosive gases;...

  • Page 9: Hints For The Operator And The Qualified Personnel

    This section describes how to use the ComfoAir 70. 2.1 Product description In case of ComfoAir 70, it pertains to a decentralized ventilation device with heat recovery for healthy, well- balanced and energy-saving comfort ventilation. The device can thereby be used as single-room device (exchanging the air in one and the same room) or with the help of a two-room connection as the mentioned isolated application.

  • Page 10: Type Plate

    2.1.2 Frost Protection ComfoAir 70 is equipped with an automatic frost protection control, which prevents the freezing of heat exchanger at a too low outside air temperature. The ratio between the supply air volume flow and exhaust air volume flow is thereby automatically adjusted through the control.

  • Page 11: Joint Operation With Heat-Producing Appliances

    2.1.3 Joint operation with heat-producing appliances In case of common operation with room air dependent heat-producing appliances it must be assured that current laws, standards and norms are observed. 2.2 Touch-sensitive control panel The control panel provides a button in the middle of 4 circular LED-fan speed-displays. By touching this button, the corresponding operating function is initiated.

  • Page 12: Operating Functions And Signalizations Of The Control Panel

    2.3 Operating Functions and Signalizations of the control panel Symbol Designation Explanation After selecting the required fan speed, the LED-display goes into the inactive mode-energy saving function after a minute (The device is on but the LED-Display is in the sleep mode). After touching the control panel once again, the LED-Display is again activated.

  • Page 13: Maintenance By The Operator

    In ComfoAir 70, two high-quality original filters (G3) are installed. The installation of a pollen filter (F7) is possible. This is used in the lower filter slot (outside air filter). The filters can be obtained from Zehnder Group Deutschland GmbH.

  • Page 14: Resetting The Filter Run-Time

    2.4.3 What should be done in the case of a failure? Contact the installer in the case of a failure. Note the type of your ComfoAir 70; for this purpose, refer to the type plate under the design-cover hood of the device.

  • Page 15: Disposal

    2.5 Disposal Discuss with your suppliers as to what you should do with your ComfoAir 70 at the end of the life cycle. If you cannot run back the ComfoAir 70 then do not deposit it in the standard household garbage but enquire at your premises if there are options to reuse the components or the environment friendly processing of the materials.

  • Page 16: Hints For Qualified Personnel

    3 Hints for qualified personnel This section describes how to install and commission the ComfoAir 70, how to analyse errors and how to carry out special maintenance work. 3.1 Installation requirements For proper installation, the following requirements must be fulfilled: •...

  • Page 17: Air Duct Connection (Only In The Case Of Two-Room Connection)

    It is important that the axes of the bore hole is horizontal and in an angle of 90° to the internal wall surface. If there are bumps in the inner wall or is not vertical then the wall bracket must be aligned with appropriate means (spacer washer or similar).
  • Page 18 The reason for this is the fixing point of the wall bracket, found adjoining to the respective two-room connection, which should not be in the area of the flat duct. An exception hereby forms the assembly of the device on the dry walls or on a front wall installation. Since the wall bracket is fixed directly to the dry wall, the flat duct can be lead behind the wall without coming into collision with the short fixing agents, which are to be used (for example plasterboard dowel).

  • Page 19: Installation Of The Wall-Installation Tube

    While using Zehnder transition pieces: • The self-adhesive sealing tube must be glued from the outside over the entire scope of the stub and 5 mm must also be removed from the front end of the stub. This end of the transition piece (with the glued sealing tube) is plugged into the EPP-body for assembly 20 mm.

  • Page 20: Installation Of The Main Device

    Check in advance the required load capacity of the respective fixing surface (dead load of ComfoAir 70 is 22 kg) and the secured fixing option by means of sufficiently long dowel and screws. Assembly material is to be seen only as a suggestion. The customer/ assemble is responsible for a secure assembly.
  • Page 21 6. Please consider that the lower side of the main device is on the wall bracket. If required, move the frame a little upwards and screw the wall bracket tight. 7. The main device must close from the front with the front edge of the wall bracket or be somewhat behind it.

  • Page 22: Installation Of The Outer Hood (Facade)

    3.2.5 Installation of the Outer Hood (Facade) During the assembly of the outer hood, it must be ensured that falling of the outer hood is prevented through corresponding dowels and screws! The provided assembly material is to be seen only as suggestion. The customer / assembler is responsible for a safe assembly! Bore 4 holes in the façade according to the assembly template and provide these with the corresponding assembly material.

  • Page 23: Electrical Connections

    The electrical connections of ComfoAir 70 is done through 2-wire cable from the control board to the power supply unit, which is again linked with the network cable. You have to ensure that the divice can be cut from the mains with help of e.g.
  • Page 24 3. Move the main device completely to the wall-installation tube and the wall bracket. Please consider the fact that the network cable cannot be thereby clamped. Connection of the LED control panel 1. Connect the plug for the control unit to the control boards. 2.

  • Page 25: Maintenance And Repair By Qualified Personnel

    If regular maintenance work is not performed at the ComfoAir 70, this impairs the functioning of the comfort ventilation. The required maintenance works are to be easily done at Zehnder ComfoAir 70 and should be regularly completed so that the device works hygienically. In case of regular filter change and using our original filter, a maintenance interval of 2 years is to be adhered to.
  • Page 26 5. Now you can lift the upper part of the EPP-casing upwards. Ensure that the possibly assembled air ducts for the two-room connection are thereby not damaged. 6. The enthalpy exchanger cannot be pulled upwards. 7. Clean the enthalpy exchanger if required. In order to do so, proceed as follows: •...

  • Page 27: Changing The Ventilators

    After completing the maintenance works, all separated air ducts are again connected air-tight to ComfoAir 70. 9. Establish network connection again. 3.3.2 Changing the Ventilators The device is to be separated from the network and is to be pulled out from the wall for changing the ventilators.

  • Page 28: Changing The Control Boards

    3.3.3 Changing the Control Boards The device is to be separated from the network before changing the board! An ESD-Strap is to be created! The board is found in the lower left part of the casing and can be easily reached by extracting the device from the wall sleeves.

  • Page 29: Technical Description

    3.5 Technical Description General specification Description / value Type of heat exchanger Enthalpy exchanger Casing / internal lining Aluminium, powder-coated, thermal bridge- free; internal lining made of expanded polypropylene EPP for thermal and sound insulation Pipe connections DN 100 (sleeve dimensions) Weight 22 kg Electrical connection...
  • Page 30 Sound Pressure Level Value (Lp in 3 m distance A = 10m²) Device without two-room connection FS1: 10,6 dB(A) FS2: 23,1 dB(A) FS3: 29,0 dB(A) FS4: 35,9 dB(A) Device with two-room connection FS1: 7,9 dB(A) FS2: 15,4 dB(A) FS3: 22,9 dB(A) FS4: 30,8 dB(A) Device with two two-room connections FS1: 2,7 dB(A)

  • Page 31: Dimension Drawing

    3.5.1 Dimension Drawing Extract air Supply air Intake air Exhaust air 275 - 600...

  • Page 32: Assembly Template Measured (Figure Is Not Scaled)

    3.5.2 Assembly Template measured (Figure is not scaled)

  • Page 33: Connection Plan Control Board Ca70

    3.5.3 Connection Plan Control Board CA70 A 230 VAC network connection is to be prepared on site for the power supply of the device. This can be done in an in-wall port behind the device.

  • Page 34: Spare Parts

    Filter 10002509 Filter set for ComfoAir 70 G3, Set-Content: 2 pieces 10004110 Filter set for ComfoAir 70 F7/G3, Set-Content: 1 piece F7, 1 piece G3 10004111 Filter set for ComfoAir 70 G3, Set-Content: 10 piece 10004114 Filter set for ComfoAir 70 F7/G3, Set-Content: 5 pieces F7, 5 pieces G3...

  • Page 35: Volume Flow Setting Using Ogs-Interface

    3.5.5 Volume Flow Setting using OGS-Interface Scope of delivery of the service-software package 1. Interface module OGS 3.4 2. USB-Interface Cable for OGS 3.4 3. Connection cable for interface module at CA70-control board 4. Control Software. Instruction: 1. Install the software on your PC (On request, Software is available per mail or CD). 2.
  • Page 36 Devices with two-room connection: Devices with two-room connection in the supply air: • The pressure loss of the connected channel in case of nominal volume flow (40 m³/h) must be known for the setting of a balanced volume flow. A measurement of the volume flows is always required. The fan speed is to be set according to the following table, whereby interim values are to be interpolated: Pressure...
  • Page 37 The flaps should be opened at approx. 90° . A large opening angle can lead to collisions with the electric cabling and to the failure of the device. Switch the device to fan speed 1 and make the settings similar to the process in the case of setting “Flap position closed”.

  • Page 38: Annexes

    4 Annexes 4.1 Checklist A Maintenance Works User Maintenance Works Enter date for the quarter 1. Change both the filters in the WRG-device (Filter change cycle 90 days) Quarter Year 201... 201... 201... 201... 201... 201... 201... 201... 201... 201... 2.

  • Page 39: Checklist B Maintenance Works Skilled Personnel

    4.2 Checklist B Maintenance Works Skilled Personnel Maintenance Works Enter Result − Reviewing the ventilation plants according to DIN 1946-6 Annex E (normative) and Annex F (informative) − Hygiene inspection according to VDI 6022, point 5.3.2. − Comments for the status with informal report −...

  • Page 40: Start-Up And Handover Certificate

    4.3 Start-up and Handover Certificate Customer Data Name: First Name: Tel: Street: Postal Code: City: Construction Projects: Type of device: Serial-No.: Year of manufacture: Completeness Parts Design Result - Design as planned yes / no Supply air duct - There is an option to clean yes / no - Layout as planned yes / no...

  • Page 41: Air Volume Log

    4.4 Air Volume Log Customer Data Name: Name: Name: Street: Street: Street: Construction Projects: Type of device: Type of device: Type of device: Measurement Data Used measuring device: Description of failures during Internal temperature the measurement: External temperature Weather Filer status during calibration Supply air Exhaust air Ventilator rotation speed-ratio...
  • Page 42 EC-Derivatives. Product Description: Decentralized Heat Recovery Unit ComfoAir 70 Derivative 2004/108/EG of the European Parliament and the council on 15 December 2004 to approximate the laws of the Member States relating to the electromagnetic compatibility and for repealing the directive...
  • Page 44 Zehnder Group Deutschland GmbH Almweg 34 · 77933 Lahr · Germany T +49 7821 586 0 · F +49 7821 586 223 info@zehnder-systems.de · www.zehnder-systems.de Version: 1.2_10/2014...

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