Air Conditioner Service Manual
25℃
37℃
33℃
30℃
22℃
34℃
s e t t i n g
l o w f a n
s t o p
b r e e z e
T e m p e r a t u r e u p
T e m p e r a t u r e d o w n
z
In the heating operation, if the air conditioner is turned off, the indoor fan motor will
run most for 30 seconds since the stop of compressor.
2. Auto fan control (heating)
In heating mode(include in “I feel” mode) , fan speed is determined by
δ
t
, as the following:
℃
1 . 5
1 . 0
3 . 0
3 . 5
δ
t c o m e d o w n
h ig h fa n
δ
t c o m e u p
m id iu m fa n
lo w fa n
R T - S T
(3)
4-way valve control
In heating mode, 4-way valve will power on ahead of compressor for 5 seconds, and cut off
for 2 minutes later than compressor’s stop. 4-way valve will not power off unless the machine is
switched off, mode changed or on the process of defrosting.
(4)
Defrosting
Defrosting is controlled by the microprocessor.
When one of the following conditions is satisfied, unit will come into defrosting:
a. Outdoor heat exchanger Temperature (OPT) is continuously less than 3
℃
while the unit
runs for more than 40 minutes, and OPT is keeping under -6
℃
for more than 3 minutes.
b. Outdoor heat exchanger Temperature (OPT) is continuously less than 3
℃
meanwhile
the unit runs for more than 80 minutes, and OPT is keeping under -4
℃
for more than 3
minutes.
c. Outdoor heat exchanger Temperature (OPT) is continuously less than 3
℃
while the unit
runs for more than 120 minutes, and OPT is keeping below -2
℃
for more than 3
minutes.
Before the air con come into defrosting, compressor running frequency drop down to a
lower frequency firstly, then the compressor shuts down.
In defrosting, the max. frequency of compressor is F9 (a little less than the highest
frequency ). In this period all protection function are avaliable.
54
Summary of Contents for SSH-I074BE
Page 18: ...Louver Pipes and Power Air Conditioner Service Manual 18 ...
Page 19: ...Air Conditioner Service Manmual 19 ...
Page 22: ...Air Conditioner Service Manual WIRING DIAGRAM MODEL SSH I184BE INDOOR UNIT OUTDOOR UNIT 22 ...
Page 23: ...Air Conditioner Service Manual WIRING DIAGRAM MODEL SSH I244BE INDOOR UNIT OUTDOOR UNIT 23 ...
Page 26: ...Air Conditioner Service Manual WIRING DIAGRAM MODEL INDOOR UNIT OUTDOOR UNIT 26 ...
