104
OCH670
1. Removing the service panel and top panel
(1) Remove 3 service panel fixing screws (5 × 12) and slide
the hook on the right downward to remove the service
panel.
(2) Remove screws (2 for front, 3 for rear/5 × 12) of the top
panel and remove it.
2. Removing the fan motor (MF1)
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Remove 4 fan grille fixing screws (5 × 12) to detach the fan
grille. (See Photo 1)
(4) Remove a nut (for right handed screw of M6) to detach the
propeller. (See Photo 2)
(5) Disconnect the connector CNF1 on controller circuit board
in electrical parts box. (See Photo 4)
(6) Loosen a clamp on the side of the motor support.
(See Photo 3)
(7) Remove 4 fan motor fixing screws (5 × 20) to detach the
fan motor. (See Photo 3)
Photo 4
3. Removing the electrical parts box
(1) Remove the service panel. (See Photo 1)
(2) Remove the top panel. (See Photo 1)
(3) Disconnect the indoor/outdoor connecting wire and power
supply wire from the terminal block.
(4) Disconnect the connector CNF1, LEV-A and LEV-B on the
controller circuit board.
<Symbols on the board>
• CNF1 : Fan motor
• LEV-A and LEV-B : LEV
(5) Disconnect the pipe-side connections of the following parts.
• Thermistor <Liquid> (TH3)
• Thermistor <Discharge>(TH4)
• Thermistor <2-phase pipe, Ambient>(TH7/6)
• High pressure switch (63H)
• Thermistor <Comp. surface> (TH33)
• 4way valve (21S4)
(6) Remove a nut from the terminal cover. (See Photo15)
(7) Remove the terminal cover and disconnect the compressor
lead wire.
Photo 3
Photo 2
Continued to the next page.
Electrical parts box
Compressor
(MC)
Valve bed
Terminal
block (TB2)*
Side panel
Controller
circuit
board (C.B.)
Terminal
block (TB1)
Fan motor
fixing screws Fan motor
Fan motor fixing
screws
13 DISASSEMBLY PROCEDURE
Clamp
Compressor
lead wire
Photo 1
Top panel fixing screws
Top panel
Service panel
fixing screws
Service panel
Slide
Cover panel
fixing screws
Grille fixing
screws
Propeller fan
Nut
Front panel
Front panel
fixing screws
Front panel
fixing screws
*Only YKA type has TB2.
PUHZ-P100VKA.TH(-ET/-ER) PUHZ-P100YKA.TH(-ET/-ER)
PUHZ-P125VKA.TH(-ET/-ER) PUHZ-P125YKA.TH(-ET/-ER)
PUHZ-P140VKA.TH(-ET/-ER) PUHZ-P140YKA.TH(-ET/-ER)
OPERATING PROCEDURE
PHOTOS/FIGURES