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Introduction and safety 

This manual contains information that must be observed for your personal safety and in order to prevent personal injury 
and damage to property. This information is highlighted in the form of warning notes, which are shown below according to 
the degree of risk. 

 Hazard 

classification 

 

DANGER

 

This signal word indicates a hazard with a 

high

 level of risk which, if not avoided, will result in death or serious injury.

 

 

 

WARNING

 

This signal word indicates a hazard with a 

medium

 level of risk which, if not avoided, will result in death or serious injury.

 

 

 

CAUTION 

This signal word indicates a hazard with a 

low

 level of risk which, if not avoided, will result in a minor or moderate injury.

 

 

NOTE

 

In the meaning of this manual, a note includes important information about the product or the respective section of the 
manual to which special attention is drawn.

 

 Safety 

regulations 

Always observe the safety regulations and installation conditions. Failure to observe the safety regulations, installation 
conditions, instructions, warnings, and comments in this document can result in personal injury or damage to the unit. 

 

Do not make any changes to the unit or to the specifications listed in this document. Such changes can cause personal 
injury or lead to reduced performance in the ventilation system. 

 

Comply with the general locally applicable building, fire, safety and installation regulations of the relevant local 
authorities, the regulations of the water and electric utilities and all other official regulations. 

 

Installation, commissioning, and maintenance must be carried out by an authorized person or company, unless 
otherwise stated in this document. 

 

Do not disconnect the unit from the power supply unless instructions to the contrary are listed in the manual. 

 

Following installation, all parts that could lead to personal injury are protected by the housing. The unit cannot be 
opened without the use of a tool. 

 

Only operate the ventilation unit with the filters inserted, the housing closed and the facade finish applied. 

 Installation 

conditions 

 

The acceptable temperature range for the air being moved is between -20 °C and +40 °C 

 

The unit must not be installed in rooms subject to explosion hazards 

 

When installing the unit, make sure that the applicable country-specific standards / regulations for compliance with 
protection zones when installing electrical systems in rooms with a bathtub or a shower are observed!   

 

The unit must not be used for extracting combustible or explosive gases 

 

The unit must be connected to a fixed 230 VAC / 50-60 Hz power supply 

 

To switch off from the mains, a disconnection system using a contact opening width in accordance with the conditions 
from overvoltage category III for complete disconnection must be provided. 

 

Check whether the electrical installation is suitable for the maximum power of the unit.  

 

Check that the installation location of the unit meets the requirements in the “4.1 Installation requirements” chapter. 

 

Notes on the operational safety of the ventilation unit 

  Operation with fireplaces 

 

Joint operation with fireplaces depending on the indoor air is only permissible in combination with the corresponding 
safety devices and in compliance with applicable laws, regulations, and standards. 

 

Observe the applicable regulations in the respective country during planning and installation. 

  Commissioning and operation 

 

Only operate the ventilation unit when it is installed. 

 

Only operate the ventilation unit with filters fitted. 

 

Only operate the ventilation unit with the upper design cover closed and engaged. 

 

Only operate the ventilation unit with a facade finish. 

 
 

Содержание ComfoAir 70

Страница 1: ...Decorative Radiators Comfortable indoor ventilation Heating and cooling ceiling systems Clean air solutions User manual on operation and installation for operators and installers Zehnder ComfoAir 70...

Страница 2: ...the property of Zehnder Group Publication as a whole or in parts requires the written approval of Zehnder Group In house duplication designated for the evaluation of the product or for proper use is p...

Страница 3: ...ng functions and signals 7 Options for ventilation operation 10 External control panel 10 Operation via networking 10 Automatic operation via sensor module 10 Maintenance by the user 11 Filter mainten...

Страница 4: ...ciently qualified for the respective work involved Qualification of target group 1 3 1 1 Users Users must be instructed by qualified personnel as follows Instruction in hazards when handling electrica...

Страница 5: ...supply unless instructions to the contrary are listed in the manual Following installation all parts that could lead to personal injury are protected by the housing The unit cannot be opened without...

Страница 6: ...acade finish Intended use also includes observing all instructions in the user manual In the event of improper use the Zehnder Group accepts no liability for any damage that may occur and no warranty...

Страница 7: ...esigned for permanent operation and is only to be taken out of operation for maintenance and repair work With the appropriate optional sensor technology in the unit fully automatic demand controlled v...

Страница 8: ...e Operating and display elements of the control panel The control panel has touch sensitive buttons and LED status indicators NOTE The ventilation unit can be operated at the same time with the intern...

Страница 9: ...unit runs at the lowest ventilation level 15 m h This fan speed can be selected when away and for the purpose of moisture protection NOTE A cyclically limited reduced ventilation can be set with the A...

Страница 10: ...rarily activated fan speed 4 can only be activated with a configured DIP switch setting After the boost ventilation time has elapsed the unit will be transferred to the most recently selected fan spee...

Страница 11: ...ing of most recently active fan speed when supply air fan is switched off Display of LED1 3 as example Frost protection mode From an outside air temperature of 4 C the frost protection function is aut...

Страница 12: ...l unit are possible Automatic operation via sensor module The application of the Automatic function follows the logic of a demand controlled system for optimizing the indoor air quality Consequently a...

Страница 13: ...separately if needed in accordance with the humidity or air quality control The HUMIDITY sensor technology is primarily supposed to be installed in units for the ventilation of rooms with an increase...

Страница 14: ...with the relevant filter maintenance LED signal 1 Put the unit into the Standby operating mode 2 Remove the upper design cover by pulling it out of the guides in an upwards direction 3 Use your finge...

Страница 15: ...of the ventilation unit and the operating surface of the control panel which should be wiped down from time to time using a soft damp cloth never just wipe dry WARNING Risk due to electric shock Disco...

Страница 16: ...mediately Included in the scope of delivery are ComfoAir 70 including installation kit Facade finish including installation set Mounting template as imprint on the inside of the lid of the box User ma...

Страница 17: ...r supply a mains cable recommended type NYM J 3x1 5 for stationary units with disconnection with a contact opening width corresponding to the conditions of overvoltage category III for full disconnect...

Страница 18: ...g piece must protrude so far out of the wall so that the connector with the attached sealing tape is inserted in the EPP housing section 4 2 3 2 Side connection of the ventilation tube If the ventilat...

Страница 19: ...wer supply before carrying out installation and maintenance work Proceed as follows for the installation of the unit NOTE Remove the transport lock attached to protect the lid mechanism Follow the ins...

Страница 20: ...the wall bracket 6 Screw the wall bracket to the inner wall and take care to ensure that the mains supply line and if present the cable for the external control panel are located in the area of the ca...

Страница 21: ...sertion of the ventilation unit it is recommended to wet the wall mounting pipe using silicone spray 10 Pivot the lower design cover against the EPP housing In the process press the lower design cover...

Страница 22: ...the mains supply line and the power supply unit s primary side power cable into the connection socket DANGER Danger due to electric shock The wires for the mains supply line and the wires for the prim...

Страница 23: ...the complete EPP housing of the ventilation unit into the wall mounting tube up to a distance of approx 15 cm from the wall bracket so that the control board is still freely accessible 6 Connect the...

Страница 24: ...the exterior wall panel as a facade finish WARNING Danger due to falling exterior wall panel The exterior wall panel is to be fixed using the supplied mounting accessories or with mounting material s...

Страница 25: ...ar contour of the airflow openings on the bottom cover NOTE To protect against water ingress apply a thick bead of suitable sealant e g weather resistant acrylic to the bottom cover depending on the s...

Страница 26: ...d out at two yearly maintenance intervals NOTE Instructions for proper disinfection can be found at www core life In doing so proceed as follows 1 Disconnect the ComfoAir 70 from the supply voltage 2...

Страница 27: ...esidual water can drain out of the openings 7 Following the inspection install all parts in the reverse order NOTE If necessary dismantled ventilation tubes must be reconnected in an air tight manner...

Страница 28: ...ess min 275 mm to max 600 mm to 900 mm with extension set Mounting position In wall casing with supply and exhaust air openings at the top Operation data Fan speed Volume flow m h Thermal efficiency H...

Страница 29: ...27 Dimensions with optional radio module 440 442 145 795 50 SUPPLY AIR EXTRACT AIR OUTDOOR AIR EXHAUST AIR 380 660 EXTRACT AIR SUPPLY AIR 376 Optional air tube connections on the back...

Страница 30: ...28 Terminal scheme...

Страница 31: ...ehnder Group Deutschland GmbH Almweg 34 77933 Lahr Deutschland T 49 7821 586 392 F 49 7821 586 406 sales international zehndergroup com www international zehnder systems com PDE Manual_CA70_V1 9_V0621...

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