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CW-C180BN
– 5 –
REFRIGERATION CYCLE DIAGRAM
2
6
B
C
A
5
D
CW-A180BN
CW-A240SN
CW-A240SN
ITEM
PRESSURE (kg/cm
2
)
TEMP. (°C)
A
15.5 ~ 19.0
55 ~ 70
B
4.0 ~ 4.5
0 ~ 5
C
15.0 ~ 18.5
37 ~ 47
D
15.4 ~ 18.9
45 ~ 55
* Indoor temp. at 21°C (DB), and Outdoor at 7°C (DB), 6°C (WB).
ITEM
PRESSURE (kg/cm
2
)
TEMP. (°C)
A
17.5 ~ 21.0
75 ~ 90
B
17.2 ~ 20.7
38 ~ 45
C
5.5 ~ 6.1
7 ~ 15
D
5.3 ~ 5.8
5 ~ 15
* Indoor temp. at 27°C (DB), 19°C (WB) and Outdoor at 35°C , 24°C.
1
4
3
SUCTION & DISCHARGE AIR
CURRENT
DETERMINATION
REMEDY
TEMPERATURE DIFFERENCE
12°C and over
As specified
• Nothing wrong
• None
12°C and over
Higher than specified
• Nothing wrong, outdoor temperature
• None
is high
• Something is preventing heat
• Clean air-filter
radiation at indoor heat-exchanger
Under 12°C
Lower than specified
• Nothing wrong, outdoor temperature
• None
is too low
• Something is preventing heat
• Improve heat radiation at outdoor
radiation at outdoor heat-exchanger
heat-exchanger
• Leakage of refrigerant
• Locate & repair leak
• Refrigerant system is blocked
• Flush refrigeration leak
Under 12°C
Higher than 150% of specified
• Compressor defect
• Replace compressor
• Compressor capacitor defect
• Replace compressor capacitor
1
Compressor
2
4-Way Valve
3
Evaporator
4
Capillary Tube
5
Strainer
6
Condenser
7
Accumulator
HEATING
COOLING
ITEM
PRESSURE (kg/cm
2
)
TEMP. (°C)
A
18.5 ~ 22.0
80 ~ 95
B
18.2 ~ 21.7
44 ~ 52
C
5.7 ~ 6.3
7 ~ 15
D
5.5 ~ 6.0
6 ~ 16
1
Compressor
2
Condenser
3
Strainer
4
Capillary Tube
5
Evaporator
6
Accumulator
CW-C180BN
CW-C240SN
CW-C240SN
3
4
2
7
6
C
A
1
B
5
D
HEATING
COOLING
COOLING
* Note: Room air humidity is relatively higher, the Temp. difference will be smaller.
* Indoor temp. at 27°C (DB), 19°C (WB) and Outdoor at 35°C , 24°C.
SUCTION & DISCHARGE AIR
CURRENT
DETERMINATION
REMEDY
TEMPERATURE DIFFERENCE
8°C and over
As specified
Nothing wrong
• None
8°C and over
Higher than specified
Nothing wrong, outdoor temperature is
• Improve heat radiation
too high, heat radiation is not efficient
Under 8°C
Higher than specified but below
Something is preventing heat radiation
• Excessive amount of refrigerant
150% of specified
• Improve heat radiation
Under 8°C
Lower than specified
Leakage of refrigerant or refrigerant
• Locate repair leak
system is blocked
• Flush refrigeration cycle
Under 8°C
Higher than 150% of specified
Compressor defect or compressor
• Replace the compressor or
capacitor defect
compressor capacitor
HEATING
AIR CONDITIONER PERFORMANCE EVALUATION
COOLING
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