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CONTROL SYSTEM
SM OU12HP 2-E.2 GB
12.9.3 Indoor Units SW Parameters
Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat mode
(ICT):
12.9.3.1 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
12.9.3.2 Parameters for indoor coil over heating protection:
ICTOH1 ICT to go back to normal 49
ICTOH2 ICT to ‘stop rise’ when ICT increase 51
ICTOH3 ICT to ‘stop rise’ when ICT is stable 53
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
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