akira AC-S13CG series, Service Manual

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17
1. Cooling
2. Dehumidifying
3. Heating
4. 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 (motor)
2. Swing motor
3. Outdoor motor (single speed motor)
4. Compressor
5. Four-way reversing valve
6. Cooling, dehumidifying indicator; running indicator
7. Digital tube setting temp. indicator or timer indicator
D. Fundamental functions
Cooling mode
1
The running conditions and control measures
a. If T in > or = T set + 1
o
C, 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 < or = T set –1
o
C , 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
o
C < T in < T set +1
o
C ,keep the previous state.
2 In this mode, the reversing valve is inactive, the temp. setting range is from 16~30
o
C.
3 Protect function
a. Anti-freezing function.
i. If compressor have run 6 minutes , and detect T eva < 0
o
C for continuous 3 min-
utes, then the compressor, outdoor fan stopped , indoor fan run at the set fan
speed. After 3 minutes later, it will run at the original state if T eva > or = 10
o
C.
b. Compressor protection
i. Compressor’s starting interval should be more than 3 minutes no matter in what-
ever modes and conditions. If it’s plugged in first time, the compressor does not
have 3 minutes delay. When compressor is started, it will not stop within 5 min-
utes unless it is plugged out.
c. Overload protection
i. If it detect the system current surpass the designed 13 A for continuous 3 min-
utes, the machine go into fan mode, when 3 minutes passed and it detect the
current no more than 13 A, it will back to original state. If it detects overloading
states for 6 consecutive times, the machine stops, and must be restarted by re-
mote controller.
Dehumidifying mode
1 The working conditions and control measures
a. If T in > T set + 2
o
C, it is in cooling running, the indoor motor speed can be selected,
and outdoor motor run at low speed.
Model No: AC-S13CGx2.doc
Version 1.0