Mitsubishi MXZ-8C60NA-U1 - 10-2. BRANCH BOX:

159
10-2. BRANCH BOX: PAC-MKA50BC PAC-MKA51BC PAC-MKA30BC PAC-MKA31BC
PHOTO: PAC-MKA50/51BC
OPERATING PROCEDURE PHOTOS
1. Removing the controller cover and under panel
(1) Remove 3 controller cover fixing screws (4 o 10) to detach
the controller cover. (See Photo 1)
(2) Remove 4 under panel fixing screws (4 o 10) to remove
the under panel. (See Photo 1)
2. Removing the thermistor (TH-A–E*)
(1) Remove the controller cover. (See Photo 1)
(2) Remove the under panel. (See Photo 1)
(3) Remove 8 insulations, then remove 9 pipe box (under) fix-
ing screws (4 x 10). (See Photo 2-1)
(4) Pull out the thermistor(s), TH-A–E, from the sensor hold-
ers mounted on the gas pipe. (See Photo 2-2)
(5) Loosen the insulation sheet which bundles the thermistor
connectors.
(6) Loosen the side clamps, then disconnect the connector(s)
on the controller board.
(7) Pull out the lead wire(s) through the hole to the controller
board side.
*TH-A–C for PAC-MKA30/31BC. (See Photo 2-3)
Photo 2-1
Sensor holders
hole
Photo 2-2Photo 2-3
Insulations
(15 x 15 x 46)
Insulations
(15 x 12 x 45)
Screw
Screws
Pipe box (under) fixing screws
Insulation sheet
Sensor holders
hole
Insulation sheet
Header assy
LEV assy
Band
Rubber mount
Header assy
LEV assy
Band
Rubber mount
Pipe box
(under)
Photo 1
Controller cover
fixing screws
Controller cover
fixing screw
Under panel fixing screws
Controller cover
Under panel
OCH573C