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FILE NO. SVM-03008
– 30 –
2) Defrost operation
Operation of the compressor is stopped once,
turn off power coupler for 4-way valves after
10 seconds, and then exchange the 4-way
valves.
After 20 seconds, restart operation of the
compressor. Turn off the outdoor fan just when
the compressor stopped.
If temperature of the indoor heat exchanger
lowered than 38°C, stop the indoor fan.
3) Defrost reset
Resetting operation from defrost to heating is
performed when anyone of the following
conditions is satisfied.
a. Temperature of the outdoor heat exchanger
rose to +8°C or higher.
b. A status that temperature of the outdoor
heat exchanger is +5°C or higher continued
for 80 seconds.
c. Defrost operation continued for 15 minutes.
In resetting defrost operation, the compressor
stops for 50 seconds if defrost has started under
condition a. to c. in item1), but the compressor is
reset to heating operation keeping operated if
defrost has started under condition d. in item 1).
(5) Louver control
When the compressor is turned off by high-temp.
release control, the vertical air flow louvers close
once and then return to the position of previous
time.
8-2-4. Automatic operation
(1) As shown in Fig. 8-2-9, the operation mode
(COOL, DRY, HEAT) is selected according to the
outside temperature and room temperature when
the operation has started.
The operation in Fan mode continues until an
operation mode is selected.
If the room temperature is 20°C or higher when
“AUTO” operation started within 2 hours after
“HEAT” operation had stopped, select an operation
mode after Fan operation of ultra low fan.
In AUTO operation, the set temperature of each
operation can be corrected by the remote
controller in the range of 17 to 30°C.
(2) After selecting the operation mode (COOL, DRY,
HEAT), select an operation mode again when a
status that the compressor was turned off by the
room temperature or outside air temperature
continues for 15 minutes.
(3) Powerful Cool mode control
When the outside temperature is above 32°C and
indoor temperature is above 28°C, select Cool
mode control. In Cool mode, the air flow louver
directs downward. When the room temperature
gains access to the set temperature, it becomes
cool memory position.
Fig. 8-2-9
TA
28
26
24
23
20
5
−2 −10+1
15 18 24 32 To
Ts correction by
outside temperature
( To)
Heating with setting
on remote controller
Ts = 25°C
Powerful Cooling/Drying with
setting on remote controller
Ts = 25°C
Cooling/Drying with setting
on remote controller
Ts = 25°C
Monitoring
(Follow to the Fan control in
previous mode when being
selected again.)