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4 - EN

1  Safety instructions

 Always comply with the safety regulations 

in this document. Failure to comply with the 
safety regulations, instructions, warnings 
and comments may lead to personal injury 
or damage to the unit. 

 Always observe the local building, 

safety and installation guidelines of the 
municipality, utility companies or other 
authorities; 

 Always connect air ducts with a minimum 

length of 900 mm to the unit before 
connecting the power supply to prevent 
contact with the rotating fans. 

 After installation, all parts that could lead 

to personal injury are safely out of reach 
behind the casing. The ComfoAir cannot be 
opened without using tools. 

 It is not permitted to modify the unit or 

any of the specifications contained in this 
document. This may result in personal injury 
or reduced ventilation system performance. 

 Installation, commissioning and 

maintenance must be carried out by a 
certified person or company, unless stated 
otherwise. If this work is carried out by 
unauthorised persons, it may result in 
personal injury or reduced performance of 
the ventilation system. 

 Always unplug the power cord before 

starting any work on the unit. Using the 
unit with the casing open may result in 
personal injury. In this case, make sure 
that no conductive or rotating parts can be 
touched. 

 Static charge can damage the electronics. 

When working with electronics, always take 
protective measures to prevent electrostatic 
discharge, such as wearing an antistatic 
wristband. 

 If the power cord is damaged, it must be 

replaced by the manufacturer, the service 
engineer or a qualified person to avoid 
risks.

2  Installation conditions

  Connect the unit to a 230 V~ 50 Hz power supply. 

Any other mains connection will damage the unit;

  The unit is designed for use in residential areas only. 

The unit is not suitable for commercial use, e.g. in 
swimming pools or saunas. Installation in an industrial 
environment can damage the unit;

  Check whether the installation area will remain within 

the permissible temperature range throughout the 
year.

  The permissible temperature of the installation area is 

given in the section “Technical specifications”;

  Zehnder recommends that the unit is not installed in 

spaces with higher-than-average humidity (such as 
a bathroom or toilet). This prevents the formation of 
condensation on the outside of the unit.

  Check whether the electrical installation can 

cope with the maximum capacity of the unit. The 
maximum capacity is given in the section “Technical 
specifications”.

  Check whether the installation area of the unit has 

sufficient room for the following aspects:

  -  The air duct system including dampening material 

around the unit;

  -  Carrying out maintenance activities in front of the 

unit (at least 1 m);

  -  The condensation drain below the unit;
  -  Wiring additional options (optional);
  -  The power connection of the unit.

Summary of Contents for ComfoAir E 350

Page 1: ...Cooling Ventilation Filtering Heating ComfoAir E350 Manual for the installer...

Page 2: ...ew filters Contact details Information given in the Instructions for the user General information about the ventilation system Warranty and liability conditions EC declaration of conformity Replacing...

Page 3: ...specifications 16 6 4 RF controls 17 6 5 Explanation of VENTILATION SETTINGS menu 18 6 6 Explanation of REPLACE FILTER warning 18 6 7 Explanation of ALTITUDE menu 18 6 8 Explanation of TEMPERATURE men...

Page 4: ...amage the electronics When working with electronics always take protective measures to prevent electrostatic discharge such as wearing an antistatic wristband If the power cord is damaged it must be r...

Page 5: ...have received the correct unit type Mounting bracket Documentation Connector set Protective cover Condensation drain adapter 32 mm pipe Condensation drain sealing cap Information available on the iden...

Page 6: ...n area 90 non condensing IP classification IP 41 ISO classification B Weight 50 kg Filter class ISO Coarse and ISO ePM1 according to ISO 16890 G4 F7 ComfoAir E350 Qv m3 h Pst Pa P W cos SFP Wh m3 Lw s...

Page 7: ...tective cover of the display C Power cable with 230 V plug not illustrated D 2 adjustment caps E Input for connecting a bathroom switch F 4 connections for the air ducts G 2 condensation drains to dra...

Page 8: ...door air after preheater VV Preheater S44 TEMP SENSOR 21 outdoor air after preheater n a C1 0 10 V input C2 Bathroom switch C3 n a C4 Malfunction dirty filter alert LED SAI Flash Output voltage at mal...

Page 9: ...EN 9 Front view of main PCB...

Page 10: ...180 200 CA300 CA400 Above view Frontal view Below view Side view Ma skizzen 10 NL 4 3 Maatschets 40 850 60 235 10 725 490 123 560 160 190 280 5 265 250 100 180 200 CA300 CA400 10 NL 4 3 Maatschets 40...

Page 11: ...escribed in the section on the condensation drain 6 Example air duct 7 Example valve 8 Install the air ducts to the unit as described in the section on air ducts Only remove the protective cover just...

Page 12: ...ir seal siphon To drain the condensation from the unit two bayonet connections are located on the bottom of the unit These connections are not airtight Consequently it is necessary to close the unused...

Page 13: ...densation on the outside of the duct Zehnder recommends that you fit thermal and moisture resistant insulation to the supply duct from the unit up to the supply valves This will prevent unnecessary te...

Page 14: ...on C Child lock is engaged D Icon for activating the menu screen E Icon for activating the comfort temperature menu F Icon for activating the filter replacement menu G Icon for activating the error re...

Page 15: ...HIGH SETTING OUTDOOR AIR TEMPERATURE MEDIUM SETTING EXHAUST AIR TEMPERATURE LOW SETTING EXTRACT AIR TEMPERATURE FANS Readout SUPPLY AIR TEMPERATURE SUPPLY FAN RPM FIREPLACE MODE YES NO PREHEATER TEMPE...

Page 16: ...ve using a flow meter Write down the air flow for these valves Adjust the opened valves to the required air flow per room Measure the air flow again at each opened valve using a flow meter Check that...

Page 17: ...n the display of the unit to ON MENU SERVICE MENU RF SETTING ACTIVATION ON You now have 10 minutes to register the RF control Set METHOD on the display of the unit to DISCRETE CONTROL MENU SERVICE MEN...

Page 18: ...before the filters need to be replaced This gives the user enough time to purchase new filters before the dirty filters are to be replaced It is possible to set the alert to appear earlier by increas...

Page 19: ...air is conveyed This ensures longer operation in frost conditions until deactivation 6 12 Explanation of ANALOGUE 0 10 V menu standard and RF SETTING optional The unit can be controlled with any anal...

Page 20: ...es too tight Air ducts have too much resistance ALTITUDE entered incorrectly Filters are dirty Heat exchanger is frozen 6 15 Explanation of RESTORE TO FACTORY SETTINGS menu The factory settings of the...

Page 21: ...ALUE for PI Controller Proportional means that the difference between the desired and measured value is increased by the value k Integral means that the error is constantly summed and that the unit co...

Page 22: ...f the unit based on the CO2 level measured Humidity sensor 0 10 V Wired control for remote automatic control of the unit based on the humidity level measured Malfunction or dirty filter alert Connect...

Page 23: ...n the left hand side ODA Outdoor air SUP Supply air ETA Extract air EHA Exhaust air Wall mounting Installation of air ducts and siphon according to DIN 12056 Installation of the controls L R 280mm 108...

Page 24: ...EN Subject to change Zehnder Group Sales International Zehnder Group Deutschland GmbH Almweg 34 77933 Lahr Germany T 49 78 21 586 392 F 49 78 21 586 406 sales international zehndergroup com www inter...

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