Service manual

13-8
CONTROL SYSTEM > GC 18/GC 21
SM HADDCI 1-A.2 GB
13.7.6.2 Deicing Protection Procedure
T1 =60 seconds, T2 = 36 seconds, T3 = 6 seconds
13.8 Indoor Unit from Dry Contact
Indoor unit Dry contact has two alternative functions that are selected by J9.
Function Contact=open Contact=short
J9=open
Presence Detector
Connection
No limit Force to STBY
J9=short Power Shedding Function No limit Limit NLOAD
13.9 Operating the Unit from the Mode Button
Forced operation allows to start, stop and operate in Cooling or Heating, in pre-set temperature
according to the following table:
Forced operation Mode Pre-set Temperature
Cooling 20
0
C
Heating 28
0
C
COMP
RV
OFAN
EEV
ON
HEAT
COOL
ON
OFF
EEVDeicerOpen
Any
2T1T
3T3T
T1
12
0
Threshold
DT
max. 12 minutes
OCT
DeiceFreqChRV
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