akira AC-S13CG series, Service Manual

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b. If T set – 2
o
C < or = T in < or = T set + 2
o
C ,it goes into dehumidifying running ,the
indoor motor run at the low speed, 6 minutes later the compressor stops, another 15
seconds later the outdoor fan stops and another 30 seconds later, the indoor motor
stops, 3 and a half minutes later, compressor and outdoor fan run again, indoor motor
runs at the low speed, then the machine cycle the above procedures repeatedly.
outdoor motor runs at the low speed.
c. If T in > T set – 2
o
C, compressor ,outdoor motor and indoor motor stop.
2 In this mode, the reversing valve is inactive , the temp. setting range is 16~30
o
C.
3 Anti-freezing protection.
a. If T indoor > T set + 2
o
C, it goes into cooling running, anti-freezing function is same
with cooling mode, but the compressor must stops for 4 minutes when it goes into
dehumidifying mode, compressor runs 6 minutes, if it detects T eva < 0
o
C, compres-
sor and outdoor motor stop, indoor motor runs at low speed, after 3 minutes delay,
and T eva > or = 10
o
C, it will be back to its original state.
Heating mode
1
The working conditions and control measures
a. If T in < or = T set + 2
o
C, it goes into heating mode, reversing valve, compressor and
outdoor motor all work in the same time, indoor fan will run at the same procedures
with anti cool air function.
b. If T in > or = T set + 4
o
C, compressor stops first, 15 seconds late, outdoor motor
stops, but reversing valve keeps working, indoor motor run at the procedures of
blowing surplus heat.
c. If T set + 2
o
C < T indoor < T set + 4
o
C, keep the previous running state.
2 In this mode, the temperature setting range is 16~30
o
C.
3 The working conditions of auxiliary electric heater.
a. In heating mode, when compressor is working, indoor motor runs at high speed and
middle speed. If it detect T eva < 50
o
C for continuous 8 seconds and T indoor < or =
25
o
C , electric heater will work, if compressor stop or indoor motor runs at low speed
or T eva 54
o
C or T indoor 28
o
C or 10 seconds before defrosting, the electric heater
will stop.
4 Protections
a. Anti cool air
i. When the machine starts heating and T eva > or = 22
o
C , indoor motor runs at
low speed, and swing motor makes the louver at the horizontal position, if T eva >
or = 40
o
C or compressor have run 2 minutes ,indoor motor and swing motor will
run at the set speed.
b. Anti high temp.
i. In heating mode, if it detect T eva 56
o
C (58 can be selected), outdoor motor will
stop (in this period it will not detect the defrosting temp.). If T eva 52
o
C, outdoor
motor will be back running (it will not detect defrosting temp. in the first 5 sec-
onds).
c. Blowing surplus heat
i. In heating mode, when set temp is reached, comp. stops first, 15 seconds later
outdoor fan stops, Indoor motor blows 90 seconds (60 seconds can be selected)
at low speed ,swing motor makes the louver at the horizontal position.
d. Compressor’s protection is same with the one in cooling mode.
e. Overload protection
i. If it detects that the system current surpassed the designed 13 A for continuous 3
seconds, compressor, electric heater and outdoor motor stop , indoor motor runs
the same procedures as the blowing surplus heat condition. After 3 minutes and
current no more than 13 A, the machine will be back to its original state, indoor
motor runs as the anti cool air condition. If it detects overloading state for 3 con-
Model No: AC-S13CGx2.doc
Version 1.0