Outdoor Unit – 2MXS18GVJU
SiUS12-928
175
Removal Procedure
1.7
Removal of the Four-Way Valve and Defrost Solenoid
Valve Procedure
Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work.
Step
Procedure
Points
1
Remove the screw of the
four-way valve coil to
remove the coil.
Warning
1. Be careful to not burn
yourself with pipes and
other parts that are heated
by the gas brazing machine.
2. If the refrigerant gas leaks
during work, ventilate the
room. If the refrigerant gas
is exposed to flames, toxic
gas may be generated.
Caution
1. To consider global
environmental protection,
do not discharge the
refrigerant gas into the
atmosphere. Make sure to
collect all refrigerant gas.
Cautions for Restoration
:
1. Restore the piping with non-
oxidation brazing.
2. It is required to prevent the
carbonization of oil inside the
four-way valve and the
deterioration of the gaskets
affected by the heat (keep
below 120°C/248°F).Wrap the
four-way valve with a wet
cloth and provide water to
prevent the cloth from drying
out.
In pulling the pipes, be careful
not to over-tighten them with
pliers to avoid deformation.
In case of difficulty with the
gas brazing machine:
1. Disconnect the brazed part
where it is easy to disconnect
and restore.
2. Cut pipes on the main unit
with a tube cutter in order to
make it easy to disconnect.
2
Remove the screw and
remove the defrost
solenoid valve coil.
Before working, make sure
that the refrigerant gas is
empty in the circuit.
Be sure to apply nitrogen
replacement when heating
us up the brazed part.
3
4
5
Heat the 4 brazed points
of the four-way valve.
Disconnect point (a) first.
Disconnect points (b) and
(c).
Disconnect point
(d).Remove the four-way
valve.
(R10370)
Defrost solenoid
valve coil
Four way
valve coil
Summary of Contents for SUPER MULTI NX G Series
Page 1: ...SiUS12 928_A Applied Models Inverter Multi Heat Pump G Series J Series...
Page 7: ...SiUS12 928_A Table of Contents vi...
Page 10: ...SiUS12 928_A 1 List of Functions Part 1 List of Functions 1 Functions 3...
Page 11: ...SiUS12 928_A List of Functions 2...
Page 17: ...SiUS12 928_A Specifications 8...
Page 23: ...SiUS12 928_A Specifications Specifications 14...
Page 25: ...SiUS12 928_A Printed Circuit Board Connector Wiring Diagram 16...
Page 37: ...SiUS12 928_A Function and Control 28...
Page 69: ...SiUS12 928_A Control Specification Function and Control 60...
Page 71: ...SiUS12 928_A Operation Manual 62...
Page 73: ...SiUS12 928_A Duct Free System Operation Manual 64 2 Duct Free System 2 1 Remote Controller...
Page 84: ...Duct Free System SiUS12 928_A 75 Operation Manual...
Page 85: ...SiUS12 928_A Duct Free System Operation Manual 76 2 8 TIMER Operation...
Page 86: ...Duct Free System SiUS12 928_A 77 Operation Manual...
Page 87: ...SiUS12 928_A Duct Free System Operation Manual 78 2 9 Note for Multi System...
Page 88: ...Duct Free System SiUS12 928_A 79 Operation Manual...
Page 97: ...SiUS12 928_A Slim Duct Built In System Operation Manual 88...
Page 99: ...SiUS12 928_A Service Diagnosis 90...
Page 169: ...SiUS12 928_A Removal Procedure 160...
Page 225: ...SiUS12 928_A Trial Operation and Field Settings 216...
Page 235: ...SiUS12 928_A Appendix 226...