Dehumidifying Mode - Soleus Air KFHHP-22 Technical & Service Manual

6.1.1 Parameters of temperature
Exhausting gas temperature of outdoor unit(Tex)
Ambient temperature of outdoor unit(Tam)
6.1.2 Fundermental function of system
In wichever mode, once compressor start-up, it can only be close down 6 minutes later at
least(not including malfunction protection/mode switch which requires compressor to stop);Once
compressor closes down, it can only restart 3 minutes later at least(including mode switch, stop by
remote control etc.);compressor starts up after outdoor motor runs for 5 seconds
6.1.2.1 Cool mode
6.1.2.1.1
Working conditions and process of cooling
when compressor in closing down state and (Tin-am-Tset) 0.5 ,if unit start in cooling mode,
then cooling mode operates; outdoor fan motor and compressor start to run. The frequency of
compressor can be adjusted automatically according to need of cooling power by micro-computer.
during cooling process, when 0
frequency.
during cooling process, when 0 need of cooling power and (Tset-Tin-am) 2 , then compressor
stops running. And outdoor fan motor stops in 60s.
In this mode, there is no power supply for reversing valve. Range of temperature setting is 16-30
.
6.1.2.1.2 Frost-proof protection
In cool and dehumidifying mode, when frost-proof protection is detected, the compressor will run in
lower frequency or stops. And outdoor fan motor stops in 60s. When frost-proof protection ends,
Compressor resumes running.
6.1.2.1.3 Controlling principles of outdoor fan motor
If
Tout-am 26 , the fan motor runs in high speed.
If
Tout-am 24 , the fan motor runs in low speed.
If 24 Tout-amb 26 , the fan motor runs in original speed.
After fan motor runs in compulsive high speed for 3 minutes in starting-up, then the speed will be
controlled by the set principles

6.1.2.2 Dehumidifying mode

Working conditions and process of dehumidifying: the same with the ones in cooling mode
status of 4-way valve: closed
range of temperature setting: 16-30
protection function: the same with the ones in cooling mode.
6.1.2.3 Fan mode
compressor, outdoor fan motor and 4-way valve are closed and stopped.
range of temperature setting: 16-30
6.1.2.4 Heating mode
6.1.2.4.1 Working conditions and process of heating
when compressor in closing down state and (Tin-amb-3)
mode, then heating mode operates. Outdoor fan motor ,compressor and 4-way valve start to run.
The frequency of compressor can be adjusted automatically according to need of heating power by
micro-computer.
Controller function of outdoor unit
(Tset-Tin-am)
-10-
2 ,the compressor operates in low
(Tset-0.5) , if unit start in heating