Purging Procedures, Leak Test, And Test Run - Mitsubishi Electric MXZ-2B20NA Manual De Instrucciones

gas pipe. (The stop valve will not work in its initial state fresh out of
stop valve on the gas pipe side of the outdoor unit.
manifold valve, and stop the vacuum pump.
valve.
stop valves on both sides of gas pipe and liquid pipe. Operating with-
fect performance of the air conditioner.
Perform gas charge to unit.
conditioner for cooling.
Note:
CAUTION:
will be locked.
Stop valve cap
*4 to 5 turns
(Torque 19.6 to
29.4 N•m, 200 to
300 kgf•cm, 15 to
*Close
22 ft
*Open
Hexagonal wrench
-
Service port cap
(Torque 13.7 to
17.7 N•m, 140 to
180 kgf•cm, 10 to
13 ft
Stop valve
for GAS
Precautions when using
the control valve
Close
A
-
Open
Control
Service port
valve
Charge hose
Union
Union
Indoor
unit
Union
-
Union
Refrigerant gas
operating valve
for R410A with siphon
Electronic scale for
refrigerant charging
–0.101MPa
Compound pressure
[–760 mmHg
Pressure gauge
Gauge manifold
Handle High
Handle
Low
Charge hose
Stop valve
Vacuum pump
for LIQUID
When attaching the control valve to
form or loosen if excess pressure is
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
core is in open position.
Stop valve
Liquid pipe
Outdoor
unit
Stop valve with
service port
Gas pipe
Gauge manifold
-
7