Mitsubishi Electric MXZ-2B20NA Service Manual page 86

OPERATING PROCEDURE
2. Removing the fan motor
(1) Remove the top panel, the service panel, and the front panel
(Photo 1, 2).
(2) Disconnect the connectors CN931 and CN932 on the outdoor
electronic control P.C. board.
(3) Remove the propeller.
(4) Remove the fan motor.
3. Removing the 4-way valve
(1) Remove the top panel (Photo 1, 2).
(2) Remove the service panel, rear panel, and pipe cover (Photo
1,2).
(3) Recover gas from the refrigerant circuit.
NOTE : Recover gas from the pipes until the pressure gauge
shows 0 PSIG.
(4) Remove the electrical parts (Photo 3).
(5) Detach the brazed parts of 4-way valve and pipe.
4. Removing the expansion valve
(1) Remove the top panel (Photo 1, 2).
(2) Remove the service panel (Photo 1, 2).
(Gas recovery is not required if the unit is pumped down.)
(3) Remove the front panel for removing LEV F (Photo 1).
(4) Remove the electrical parts for removing LEV F (Photo 3).
(5) Remove the LEV coils.
(6) Detach the brazed parts of expansion valves and pipes.
OBH560G
Screws of the outdoor fan motor
Photo 5
Propeller
Propeller
nut
Separator
Sound proof felt
Photo 6
Photo 7
LEV coil F
LEV coils
86
Photo : MXZ-3B24NA
PHOTOS
4 way valve
R.V. coil
Brazed parts
Expansion valve F
Expansion
valves