Hyundai WSH-071NBE Service Manual page 62

PCB function manual and operation method
6 6 6 6 6 PCB function manual and operation method
Manual of functions of controller
1 Temperature Parameters
Indoor setting temperature (T
Indoor ambient temperature ( T
2 Busic Functions of System
Once energized, the compressor should in no way be restarted unless after at least 3-minute time interval. If the unit is with memory
function, for the first energization, the compressor will be started without 3-minute lag; if being under the condition of power- off,
the compressor will have 3-minute delay to be started under the condition of power-on. Once started, the compressor will not be
stopped within 6 minutes with the changes of room temperature.
(1) Cooling Mode
Cooling Condition and Process
When Tamb. Tpreset+1 , the unit will run under cooling mode, in which case, the compressor and outdoor fan will be
run, and the indoor fan will run at setting fan speed.
When Tamb. Tpreset -1
fan speed.
When Tpreset -1 <Tamb.< Tpreset +1
Under this mode, the reversing valve will be de-energized and the temperature can be set from 16 to 30
shows the signal of running,cooling as well as the setting temperature.
T
preset
T
preset
Compressor
Outdoor fan
Indoor fan
Protection function
Antifreeze Protection
If it is detected that the system is under antifreezing protection, the compressor will be stopped, and the indoor fan will run at setting
fan speed. When antifreezing protection is released and the compressor has stopped for 3 minutes, the unit will resume its original
running status.
Compressor
Outdoor fan
Indoor fan
)
preset
)
amb.
, the compressor and the outdoor fan will be stopped, in which case, the indoor fan will run at setting
, the unit will maintain its original running status.
T
amb
+1
1
min min
.
setting fan speed
Run
During antifreeze protection
min
setting fan speed
Run
Start cooling
Original running status
Stop cooling
min
.
.
Stop
Stop
.
The display
60