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7. Disassemble the charge hose from the repair-mouth of stop value A, and fasten the nut.
CAUTIONS
All the stop values should be opened before test operation. Each air conditioner has two stop values
of different sizes on the side of the outdoor unit which operate as Lo-stop value and Hi-stop value,
respectively. (Refer to Chart 26)
CHECK THE LEAKAGE
Check all the joints with the leak detector or soap water. (refer to Chart 29)
NOTE: in the chart
INSULATION
Be sure to with insulating materials cover all the exposed parts of the flare pipe joints and refriger-
ant pipe on the liquid-side and the gas-side. Ensure that there is no gap between them.
Incomplete insulation may cause water condensation.
Manifold valve
Multi-meter
-76 cmHg
Lo-lever
Charge hose
A...........Lo-stop value
B...........Hi-stop value
C,D.......Joints of the connecting pipe
to the indoor unit.
Pressure meter
Hi-lever
Charge hose
Vacuum pump
Lo-lever
Valve body
13
Flare nut
Stopper
Cap
Valve stern
Chart 26
Check-point of indoor unit
Check-point of outdoor unit
Chart 27
C
D
B
A
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