Sinclair SMF-4E27AI, Service Manual

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16
If one of following conditions is satisfied, end the defrost and turn into heating mode:
a. The defrost time has reached to 10 minutes.
b. When the temperature of outdoor heat exchanger rises up to 15
°
C.
3. Defrosting Actions:
a. Compressor runs.
b. 4 way valve switches off,
c. Outdoor fan switches off
d. Indoor fan running according to anti-cold wind function in heating mode.
4. Automatic operation mode
The air conditioner automatically selects one of the following operation modes: cooling,
heating or fan only according to the temp. difference between room temp. (TA) and set
temp. (TS).
TA
—
TS Operation mode
TA
—
TS>2
℃
Cooling
-1
≤
TA
℃
-TS
≤
+2
℃
Fan-only
TA-TS<-1
℃
Heating (air-only for cooling only type)
7.3 Mode conflict
The indoor units can not work cooling mode and heating at same time.
Heating mode has a priority.
7.3.1 Definition
Cooling mode Heating Mode Fan Off
Cooling mode No Yes No No
Heating Mode Yes No Yes No
Fan No Yes No No
Off No No No No
No: No mode conflict;
Yes: Mode conflict
7.3.2 In case of one Indoor unit working in cooling mode or fan mode, and another indoor
unit is set to heating mode, the indoor unit working in cooling mode or fan mode will
change to stand by. The outdoor unit will work in heating mode.
7.3.3 In case of one Indoor unit working in heating mode, and another indoor unit is set to
cooling mode or fan mode, the indoor unit setting to cooling mode or fan mode will
change to stand by.
7.4 Manual switch
Mode changes when push this button.
Cooing mode
à
Auto mode
à
Unit off
à
Cooing mode
At Cooing mode, after 30 minutes cooling operation whose fan speed is set as low, the
A/C operates with a setting temp. of 24
℃
.
At auto mode, the A/C operates with a set temp. of 24
℃
7.5 Timer Function