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Mounting an expansion PCB on the CTS602 circuit board
An expansion PCB allows you to expand the functions of the control system. It makes it possible for you to add accessories as shown
on the following pages.
1. In order to access the circuit board on which the expan-
sion PCB is to be installed, you will need to do the follow-
ing:
a: Detach the HMI panel on the front door from the wire
so you can remove the front door. Then remove the rear
plate.
b: Detach the bypass damper with a click and loosen the
wire from the bypass box.
c: Unscrew the bypass box and remove it.
d: Carefully pull out the counterflow heat exchanger.
2. Remove the two screws on either side of the box for the
control system.
3. Pull the control box forward in the slots, tip it down-
wards and let it hang in the profile.
4. A cable has been mounted on the expansion PCB. Con-
nect it up as shown on the wiring diagram.
5. Mount the large PCB card supports, provided, in the 3
holes on the expansion PCB.
6. Connect the expansion PCB to CN9. Fit the PCB card
supports in the holes made for this purpose on the
CTS602 circuit board.
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