Toshiba MMW-AP0481CHQ-E Service Manual page 106

No. Part to be replaced
12 Heat exchanger
assembly
(Refrigerant-
Refrigerant)
Work procedure
1. Detachment
1) Carry out the detachment of item 1 and 2 .
2) Recover R134a refrigerant from check joint.
3) Remove the pipe connected to the connection
port for the refrigerant.
4) Remove the parts( following parts) around the
heat exchanger assembly
(Refrigerant-Refrigerant).
• Side cabinet (Right)
• Electric parts box assembly
• Reactor cover
• Reactor
• Reactor base
• Sub-base
• Electric parts box base
• Electric parts box fixing plate
• Fan duct assembly
• Fan duct
• Support plate (Side-Rear)
5) Remove the PMV assembly connected to the heat
exchanger assembly (refrigerant - refrigerant) by
the burner. (It works, while cooling down a PMV body.)
6) Remove the accumulator inlet pipe connected to
the heat exchanger assembly
(refrigerant - refrigerant) using burner.
7) Remove each assembly at the liquid or gas side
being connected to the heat exchanger assembly
(refrigerant - refrigerant).
8) Remove the nut to remove the heat exchanger
(refrigerant - refrigerant ) and replace it.
NOTE:
• Protect the peripheral parts so that flame won't
touch them directly.
• Be sure to remove collar from the removed heat
exchanger and attach to a new heat exchanger.
2. Attachment
1) Carry out installation by following the detachment
procedure in reverse.
PMV assembly
Remove it by burner
Remove it by burner
Inlet pipe for accumulator
Heat exchanger
Collar
– 106 –
Remarks
Check joint
(Low pressure side)
Check joint
(High pressure side)
Side cabinet (Right)
Electric parts box
Reactor cover
assembly
Reactor
Reactor base
Connection port for refrigerant pipe
Heat exchanger assembly
(Refrigerant-Refrigerant)
Sub-base
Electric parts box base
Support plate(Side-Rear)
Electric parts box
Fan duct
fixing plate
Fan duct assembly
Sub-partition plate
Nut
Heat exchanger
fixing plate
Remove it by burner
Gas side pipe
assembly
Liquid side pipe assembly
t
Nu