Mitsubishi Electronics MXZ-2B20NA Air Conditioner User Manual


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7
385*,1*352&('85(6$1'/($.7(67
Stop valve
for GAS
Stop valve cap
(Torque 19.6 to
29.4 N•m, 200 to
300 kgf•cm, 15 to
22 ft
OE
Gauge manifold
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Compound pressure
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–0.101MPa
[–760 mmHg
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Handle
Low
Handle High
Vacuum pump
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*Close
*Open
Hexagonal wrench
*4 to 5 turns
Stop valve
for LIQUID
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Pressure gauge
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Precautions when using
the control valve
When attaching the control valve to
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form or loosen if excess pressure is
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Service port
Charge hose
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%RG\
Close
Open
Control
valve
A
When attaching the control valve to
the service port, make sure that the
valve core is in closed position, and
then tighten part A. Do not tighten
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core is in open position.
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Perform gas charge to unit.
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F\OLQGHU
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conditioner for cooling.
Note:
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UHIULJHUDWLQJF\FOH
CAUTION:
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will be locked.
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QDNHG¿UHRUVWHDP
Union
Stop valve
Liquid pipe
Union
Union
Union
Indoor
unit
Stop valve with
service port
Gas pipe
Refrigerant gas
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operating valve
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Gauge manifold
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5HIULJHUDQWJDVF\OLQGHU
for R410A with siphon
Electronic scale for
refrigerant charging
5HIULJHUDQWOLTXLG
Outdoor
unit
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gas pipe. (The stop valve will not work in its initial state fresh out of
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&RQQHFWJDXJHPDQLIROGYDOYHDQGYDFXXPSXPSWRVHUYLFHSRUWRI
stop valve on the gas pipe side of the outdoor unit.
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manifold valve, and stop the vacuum pump.
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-
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VKRZV±03D>*DXJH@>±PP+JLQ+J@
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valve.
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stop valves on both sides of gas pipe and liquid pipe. Operating with-
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QHHGHG%HVXUHWRFKDUJHVORZO\ZLWKOLTXLGUHIULJHUDQW2WKHUZLVH
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-
fect performance of the air conditioner.
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/HDNWHVW
Service port cap
(Torque 13.7 to
17.7 N•m, 140 to
180 kgf•cm, 10 to
13 ftOE
Charge hose
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