11-12
CONTROL SYSTEM
SM TRIO52 1-A.2 GB
11.22
Unit Operation in Test Mode
In test mode, the unit will operate in fixed settings according to the indoor fan speed
setting:
Indoor Fan Speed Setting
Unit Setting
Low
Minimum Capacity Setting
High
Nominal Capacity Setting
Auto
Maximum Capacity Setting
During test mode, protections are disabled, except for stop compressor status.
SW Parameters
Indoor Units SW Parameters
General Parameters for All Models:
Parameters defining the indoor fan speed as a function of Indoor Coil temperature in heat
mode (ICT):
ICTST Speed
ICT to stop indoor fan
23
ICTVLSpeed
ICT to go down to very low speed
26
ICTLSpeed
ICT to start in very low speed
28
ICTHSpeed
ICT to start in increase speed from very low 30
ICTTSpeed
ICT to enable Turbo fan speed
40
Parameters for defrost protection:
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
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
CONTENTS
