Service And Maintenance; Reset Function - Helios AIR1-ENH Notice De Montage Et D'utilisation

Installation and Operating Instructions
CHAPTER 3
SERVICE AND
MAINTENANCE
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WARNING
CHAPTER 4

RESET FUNCTION

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WARNING
Electrical auxiliary heater AIR1-ENH
9. Open terminal box cover. Check cable thickness for power connection. Connect the cables to the terminals and
close the terminal box cover (see Fig. 20).
The cable connections can be found in the the wiring diagrams in the corresponding installation and operating
instructions for the AIR1 unit .
10. Connect the other cable end of the terminal box of the electrical auxiliary heater to a suitable connecting terminal in
the terminal box of the unit (see wiring diagram in the installation and operating instructions for the correspon-
ding AIR1 ventilation unit).
11. After installing the heating register, adjust the settings in the commissioning assistant. For this purpose, please
refer to corresponding chapter in the installation and operating instructions for the respective AIR1 ventilation unit.
3 .0

Service and maintenance

Cleaning and maintenance work may only be carried out by an electrician.
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Danger to life!
The unit must be fully isolated from the mains power supply before all maintenance and installation work and
opening the terminal compartment!
Danger of electric shock, moving parts (fan) and hot surfaces .
Carry out maintenance after a waiting period of 3 minutes!
The electrical auxiliary heater must be checked for contamination every 6 months. If there is dirt and dust on the elect-
rical auxiliary heater, these can be removed with compressed air.
– When cleaning, it must be ensured that the electrical auxiliary heater is not damaged.
4 .0 Reset function
m
Danger to life!
The unit must be fully isolated from the mains power supply before all maintenance and installation work and
opening the terminal compartment!
Danger of electric shock, moving parts (fan) and hot surfaces .
Carry out maintenance after a waiting period of 3 minutes!
Automatic reset: The automatic reset temperature is 70 °C. When a temperature of 70 °C is reached, the safety tem-
perature limiter will be triggered and the pre-heater will be disconnected from the mains power supply. If the tempera-
ture falls below 70 °C, the electrical heater will automatically reactivate.
Manual reset: The manual reset temperature is 90 °C. When a temperature of 90 °C is reached, the safety temperature
limiter will be triggered and the pre-heater will be disconnected from the mains power supply.
If the manual reset is triggered, there is most likely a problem with the heater.
The manual reset switch is located directly on the electrical pre-heater.
Electrical auxiliary heater for AIR1 XC units
1. Unlatch and open the service doors. Support the door with your hand when opening (see Fig. 21).
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Fig .20