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7
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7-1. Check refrigerant system
TEST SYSTEM FLOW
①
Conditions:
Compressor is running.
② The air condition should be installed in good ventilation.
Tool: Pressure Gauge
①
Technique:
see
SEE---Tube defrost.
FEEL---The difference tube temperature.
TEST--- Test pressure.
cooling run
Outdoor unit
Pressure
gauge
Lo
Hi
Test system flow
C
O
M
P
O
N
E
N
T
S
C
O
M
P
O
N
E
N
T
S
②
③
feel
test
heating run
Pressure
gauge
Lo
32
Outdoor unit
Hi
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