Removing The 4-Way Valve; Removing The Expansion Valve; Removing The Reactor - Mitsubishi Electric MXZ-2B20NA Service Manual

OPERATING PROCEDURE

4. Removing the 4-way valve

(1) Remove the top panel (Photo 1).
(2) Remove the service panel, the cabinet, and the back panel
(Photo 1, 2, 3).
(3) Recover gas from the refrigerant circuit.
Recover gas from the pipes until the pressure gauge
NOTE:
shows 0 PSIG.
(4) Remove the electrical parts (Photo 4).
(5) Detach the brazed parts of 4-way valve and pipe (Photo 7).

5. Removing the expansion valve

(1) Remove the top panel (Photo 1).
(2) Remove the service panel, the cabinet, and the back panel
(Photo 1, 2, 3).
(Gas recovery is not required if the unit is pumped down.)
(3) Remove the electrical parts for removing LEV E (Photo 4, 5).
(4) Remove the LEV coils.
(5) Detach the brazed parts of expansion valves and pipes.

6. Removing the reactor

(1) Remove the top panel (Photo 1).
(2) Remove the service panel, cabinet, back panel, and the
electrical parts (Photo 1, 2, 3, 4).
(3) Disconnect the reactor lead wire from the terminal of the
reactor.
(4) Remove the screws of the reactor, and remove the reactor
(Photo 9).
OBH560G
Photo 7
R.V. coil
Photo 8
LEV coils
Photo 9
Screws of the reactor
84
PHOTOS
4 way valve
Brazed parts
Expansion
valves