12-16
CONTROL SYSTEM
SM CKDDCI 2-A.3 GB
In HEAT or AUTO HEAT modes, the SPT adjustment is negative
o
(from 0 to -3
o
C).
In other modes, there is no SPT adjustment.
o
The SPT adjustment is cancelled when the Sleep mode is cancelled.
o
If OFF-timer is active, the unit may go to SB before or after 7 hours of sleep
o
operation.
12.4.7.3 Sequence
Diagrams
12.4.8 Forced
Operation
Forced operation is set by the mode button on the Display Board and 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
NOTES
While
under the forced operation, the temperature compensation is disabled.
The
IFAN is always set to Autofan Speed in forced operation.
12.4.9
Heating Element Control
Heating element can be turn on if high LOAD is more then 80% and Indoor Coil
temperature is less then 45
C.
The heating element will be off when LOAD is less then 50% OR if Indoor Coil
temperature is more then 50
C.
SPT
Time [Hr]
4
8
5
3
2
6
Start
Sleep
7
RT
SPT-1
SPT-2
SPT-3
SPT+2
SPT+1
SPT+3
1
7 Hours Sleep operation
for Normal Sleep Mode
Unit is turned to SB
after Sleep
Cool, Dry modes
Heat mode
