7. Disassemble the charge hose from the repair-mouth of stop value A, and fasten the nut.
-76 cmHg
Lo-lever
Hi-lever
Charge hose
Charge hose
Vacuum pump
Lo-lever
Manifold valve
Multi-meter
Pressure meter
NOTE: in the chart
A...........Lo-stop value
B...........Hi-stop value
C,D.......Joints of the connecting pipe
to the indoor unit.
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)
Chart 27
CHECK THE LEAKAGE
INSULATION
Check all the joints with the leak detector or soap water. (refer to Chart 29)
13
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.
Check-point of indoor unit
Check-point of outdoor unit
D
B
C
A
Flare nut
Stopper
Cap
Valve body
Valve stern
Chart 26
Summary of Contents for MCA-24CRN2
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