I
NSTALLATION
C
OMFORT
C
IRCLE
28
Connecting 0-10VDC in- and outputs
1. Disconnect power supply (remove plug from socket or
move main switch to Off).
2. Remove the electronics module from the unit (see
section 8.6).
3. Lead the 0-10VDC in- and output cables through
grommet
3
.
4. Connect the cables to terminal
4
. Refer to the wiring dia-
gram if necessary.
5. Replace the electronics module into the unit.
2.16
Switching on and checking operation
1. Check the following connections:
-
power supply;
-
control cable/s between controller and unit/s;
-
external control components (if any);
2. Check if the heat exchanger is connected correctly.
3. Make sure the CH and CW systems are switched on.
4. Switch the mains power on and/or plug in all connected
units.
If you switch on the mains power for the first time, the dis-
play will briefly show the number of connected units. You
can also check this number via the service menu (see sec-
tion 8.2, function 28)
5. Only units that can cool:
-
Test the operation of the condensate discharge pump:
Pour water into the external drip tray. The condensate
pump should start working shortly.
6. Switch on the Comfort Circle using the controller (see
7. Only units that can heat:
-
Set the desired room temperature to a high value (see
section 4.3).
-
Feel if the discharged air gets warm. This may take
some time. You may want to read the actual discharge
temperature from the service menu (section 8.2) – only
for CC M, parameters 36 and 37.
3
4
