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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. 

 
 

Summary of Contents for ComfoSpot 50

Page 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 ComfoSpot 50...

Page 2: ...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 permi...

Page 3: ...ements of the control panel 6 Description of the operating functions and signals 7 Options for ventilation operation 9 External control panel 9 Operation via networking 9 Automatic operation via senso...

Page 4: ...iciently 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 electric...

Page 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...

Page 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...

Page 7: ...unit fully automatic demand controlled ventilation operation is possible An enthalpy exchanger which can transfer both humidity and heat owing to the physical characteristics is used in the ComfoSpot...

Page 8: ...l has touch sensitive buttons and LED status indicators NOTE The ventilation unit can be operated at the same time with the internal and the external control panel Item Description A Facade finish ext...

Page 9: ...up Fan speed 3 FS3 Increased ventilation The ventilation unit runs at a higher ventilation level 40 m h to reduce peak loads e g when several people are present LED1 4 light up Fan speed 4 FS4 Intensi...

Page 10: ...e LED display is switched off If any key is touched the LED indicator will be activated again Touching the button brings about no change to the operating mode however Standby mode The unit can be swit...

Page 11: ...s switched off Display of LED1 3 as example Frost protection mode From an outside air temperature of 4 C the frost protection function is automatically activated In frost protection operating mode the...

Page 12: ...ting mode with humidity control 3 2 3 2 Functional principle of CO2 VOC sensor NOTE The CO2 sensor module and the VOC sensor module are each combined with a humidity temperature sensor The CO2 sensor...

Page 13: ...unit is equipped with two air filters of filter class ISO Coarse 70 as standard Retrofitting with filters of filter class ISO ePM10 80 is possible preferably the higher quality ePM10 filter is inserte...

Page 14: ...the bottom cover of the interior cover next to the filter compartment in each respective case Make sure that the filter is not pushed into the filter compartment with force 7 Insert the filter caps a...

Page 15: ...onger be mechanically ventilated This may result in moisture and mould problems in the room that requires ventilation 4 Chapter for qualified personnel Installation requirements The following requirem...

Page 16: ...rge when handling the control unit e g by wearing an anti static armband Installation preparations 4 2 2 1 Preparations for installing the wall mounting pipe Prior to installing the ventilation unit a...

Page 17: ...unit either to the wall thickness or to the measure of length of the wall mounting pipe by shortening the EPP housing extension NOTE The cut must be performed all around perpendicular to the axis of t...

Page 18: ...the openings for the electrical connections and fix the bottom cover of the interior cover in place using the screw from the installation set or the alternatively selected fixing material Relocating...

Page 19: ...control panel carrier Restore the plug connection between the ribbon cable and control panel NOTE Watch out for the reverse polarity protection for the post connection when connecting 6 Install the ri...

Page 20: ...Der The power supply is connected after the final positioning of the unit in the wall mounting pipe In doing so proceed as follows 1 Plug the WAGO lighting terminals 3 pieces included in the installa...

Page 21: ...mounting material suitable for the facade construction The professional and safe installation is to be checked and the responsibility of the technical crew performing the work NOTE The exterior wall p...

Page 22: ...ten the four screws from the supplied installation kit for the top cover of the outside wall panel on the bottom cover of the outside wall panel NOTE In general the top cover of the outside wall panel...

Page 23: ...ing pipe until the PVC cover for the control board is freely accessible 5 Remove the PVC cover of the control board at the side of the ribbon cable entry out of the slot on the EPP housing and grippin...

Page 24: ...EPP housing tight when doing so 10 Following the inspection install all parts whilst considering the restoration of all electrical connections in the reverse order 11 Restore the power supply and set...

Page 25: ...ension set Mounting position Horizontally in the wall mounting pipe air passage openings laterally vertical on the interior cover and outside wall panel thumb wheel for shutter adjustment AT THE RIGHT...

Page 26: ...370 330 Bottom cover for outer panel View from outside EHA ODA 330 360 Angular structural shell set View from outside Angular structural shell set View from inside 40 areas for cable entry 35 90 4x fa...

Page 27: ...25 Terminal scheme...

Page 28: ...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_CS50_V4 0_V0621...

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