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Servicing
TURN OFF all the power switches.
2.12.5 Removing Reversing Valve
(1) Remove the front service cover according to the item 2.1 “Removing Front Service Cover”.
(2) Remove the electrical box, wirings and E-box stay according to the item 2.6 “Removing Electrical Box” and the item 2.7
“Removing E-Box Stay.”
(3) Before starting the following work, collect the refrigerant from the refrigerant cycle into a cylinder.
(4) The reversing valves are xed at the positions shown in the gure.
(5) Remove the reversing valve coils according to the item 2.12.4 “Removing Reversing Valve Coil”.
(6) Remove the brazing portion shown in the gures below with the reversing valves and the stop valves covered with wet
cloth for cooling.
NOTE:
1. Make sure to remove the brazing portion at the indicated positions in the gures. If not, leakage may occur when
reassembling the valves.
2. In the case of Heat Pump System, connect the charging hose to the check joint for low pressure gas stop valve before
removing the brazing.
(7) Remove the reversing valve assembly.
Remove the brazing as shown in the gures with the reversing valves covered with wet cloth for cooling. Remove the
brazing in the following order:
(a) Brazing at the right and left branch pipes of the three pipes coming from the reversing valve.
(b) Brazing at the middle branch pipe of the three pipes coming from the reversing valve.
(8) Set the reversing valves in the reverse procedure.
NOTE:
During brazing work, cover the reversing valves and the stop valves with wet cloth for cooling.
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