Service manual

CONTROL SYSTEM
11.10.3 Compressor Parameters
Compressor Parameters Value
MinOFFTime
3
MinOnTime
3
MaxSpeedC
75
MaxSpeedH
95
Step1RPS
40
Step2RPS
60
Step3RPS
75
11.10.4 OFAN parameters
EEV Parameters Value
OFMinRPM
150
OFMaxRPM
1000
NightRPM
650
OFMinTimeReduce (Sec)
60
OFLowSpC
35
OFMedSpC
50
OFLowSpH
40
OFMedSpH
65
11.10.5 Indoor Units SW Parameters
11.10.5.1 General Parameters for All Models:
Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode
(ICT):
11.10.5.1.1 Parameters for defrost protection:
ICTST Speed
ICT to stop indoor fan
25
ICTVLSpeed
ICT to go down to very low speed
28
ICTLSpeed
ICT to start in very low speed
30
ICTHSpeed
ICT to start in increase speed from very low
32
ICTTSpeed
ICT to enable Turbo fan speed
40
ICTDef1 ICT to go back to normal 8
ICTDef2 ICT to ‘stop rise’ when ICT decrease 6
ICTDef3 ICT to ‘stop rise’ when ICT is stable 4
ICTDef4 ICT to ‘Hz Down’ when ICT decrease 2
ICTDef5 ICT to ‘Hz Down’ when ICT is stable 0
ICTDef6 ICT to stop compressor -2
11.10.5.1.2 Parameters for indoor coil over heating protection:
ICTOH1 ICT to go back to normal 45
ICTOH2 ICT to ‘stop rise’ when ICT increase 48
ICTOH3 ICT to ‘stop rise’ when ICT is stable 52
ICTOH4 ICT to ‘Hz Down’ when ICT increase 55
ICTOH5 ICT to ‘Hz Down’ when ICT is stable 60
ICTOH6 ICT to stop compressor 62
Revision 0
11-25