INSTALLATION AND SERVICE MANUAL FOR PROFESSIONALS
Installation: Installation options
Installation options
Change-over to
operating mode B
Risk of electric shock!
You can be severely injured by an electric shock.
• Always disconnect the unit from the mains by removing the mains plug from the socket
The unit offers the option to exchange the duct connections as described in the section
"Product description – General description". Mode A is the default setting. In the following
section the change-over from operating mode A to operating mode B is described:
1. Gain access to the main PCB as described in the section "Accessing the main board".
2. Set the switch on the main PCB to operating mode B.
3. Remove the front cover if you have not already done so. To do so, loosen the three
DANGER
before opening the unit!
Fig. 31: Setting the switch to operating mode B
screws on the bottom of the unit and remove the front cover.
Fig. 32: Removing the front cover
B
A
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