MovinCool CM12 Service Manual - Manual (Page 57)

Repair Section
57
(3) Relay Board
Removal of Relay Board
1) Disconnect the power at the source.
2) Take out the four (4) screws, and then remove the service panel. (See page 48.)
3) Disconnect all connectors from relay board (11 connectors, two connections on the relay and
ground wire). Refer to the figure “Relay Board” to identify the relay connections and the
connectors marked as CN##. (To ensure easy reinstallation, be sure to label each connector
wire as you remove them.)
4) Remove relay board from plastic supports (6 locations). Use needle nose pliers to squeeze all
the supports before removing the relay board.
< NOTE >
In case there is no room to remove and replace the relay board, take out the eighteen (18) screws
and then remove the top panel.
ILL00539-00
CN15
CN16
CN14
CN11
CN03
CN12
CN13
CN17 CN25
CN23
CN22
CN21
CN24
CN01
Not Use Not Use
4
3
To Terminal Block2
(Fire Alarm Input)
To Terminal Block2
(Wall Thermostat)
To Float Switch
To Evaporator
Inlet Air Thermistor
To Freeze Protection
Thermistor
Not Use
To Condenser
Inlet Air Thermistor
To Terminal Block1
(Power Source)
Relay Board Fuse
(250 V, 5 A)
To Terminal Block2
(External Output)
To Auxiliary Relay
To Condenser
Fan Motor
To Evaporator
Fan Motor
Support
Support
Support
Support
Support
Support
Dip Switch