Gree KFR-35GW/J11, Техническое и сервисное руководство

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King Series
-43-
5 IN I PCB function manual.
A. running mode
1. cooling 2.dehumidifying 3.heating 4.fan 5.auto
B. input parameters
1.indoor ambient temp. T
in
2.evaporator tube temp. T
eva
3.setting temp. T
set
4.condenser tube temp. T
con
C. targets
1. indoor motor (PG motor )
2. swing motor
3. outdoor motor ( two speeds motor)
4. compressor
5. four-way reversing valve
6. electric heater
7. fresh motor
D. fundamental functions
1.cooling mode
(1) the running conditions and control measures
a. if T
in
T
set
+ 1 , the machine runs at the cooling mode. Compressor runs, outdoor motor
runs at low speed , indoor fan runs at the set fan speed.
b. if T
in
T
set
-1 , the machine stops. Compressor stops first , outdoor motor stops after 15
seconds , indoor motor runs at the set fan speed.
c. if T
set
-1 T
in
T
set
+1 ,keep the previous state.
(2) in this mode, the reversing valve is inactive, the temp. setting range is from 16~30 .
(3) Protect function
a. anti-freezing function.
if compressor have run 6 minutes , and detect T
eva
< 0 for continuous 3 minutes, then the
compressor stopped , outdoor stopped after 15 seconds, indoor fan run at the set fan speed. After
3 minutes later, it will run at the original state if T
eva
10 .
b. compressor protection
Compressor’s starting interval should be more than 3 minutes no matter in whatever modes
and conditions. If it’s plugged in first time, the compressor does not have 3 minutes delay. When
9. PCB function manual