IMI CWR 25, Technical Manual

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DIP switches at the bottom rear of the controller can be set on site to suit the application.
DIP switch Function ON position OFF position
1
Fan control Fan control is temperature dependent in all
operating modes
Fan control in normal operation is
temperature independent
2 Operating mode changeover via
external switch
Changeover between normal operation and
energy saving mode
Changeover between normal operation and
standby
3 Action of switch for externally
operated mode changeover
Changeover activated when contact of
switch is closed
Changeover activated when contact of
switch is open
4 Standby Frost protection disabled Frost protection enabled
5 Switching differential 1K in heating mode, 0.5K in cooling mode 4K in heating mode, 2K in cooling mode
6 Dead zone in normal operation 2K 5K
= factory settings
--o--o--O--O--O--o--o--
CWR 25 TO 85 WIRING DIAGRAM
B Brown H Heat/heater
R Red SH Heater supplementary
O Orange EH Heater electric
Y Yellow TP1 Thermal protector
G Green TP2 Thermal fuse
BL Blue RL Relay
V Violet T1 Thermostat de-ice
GRY Grey T2 Thermostat supplementary
W White LK Link
BK Black PCB1 Condensate control
P Pink RT Remote thermostat
T Turquoise F Fuse
HT High temperature S1 Condensate sensor
M1 Motor fan C Capacitor
M2 Pump V1 Valve cool
M3 Vane motor V2 Valve heat
AC Air conditioner CC Control
HP Heat pump RV Reversing valve
--- Not supplied
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