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8
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8
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8-1. Check refrigerant system
TEST SYSTEM FLOW
Conditions:
¢Ù
Compressor is running.
¢Ú The air condition should be installed in good ventilation.
Tool: Pressure Gauge
Technique:
¢Ù
see
SEE---Tube defrost.
FEEL---The difference tube temperature.
TEST--- Test pressure.
cooling run
Outdoor unit
Pressure
gauge
Lo
Hi
Test system flow
M
P
O
N
E
N
T
S
M
P
O
N
E
N
T
S
¢Ú
feel
¢Û
test
35
A
D
M
-
2
4
U
X
A
D
M
-
2
4
U
X
heating run
Outdoor unit
Pressure
gauge
Lo
Hi
4
S
G
K
A
4
S
G
K
A
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