138
No.
12
Part name
Heat exchanger
(Continued)
Procedure
1. Detachment
(In cases of AP027/AP048)
1) Recover the refrigerant gas and
then remove the refrigerant piping
of the indoor unit.
2) Perform work Detachment 1 of
8
.
3) Take off screws and remove the
fan base. (For the tentative
hanging parts at 2 positions, it is
all right only to loosen screws.)
AP027 type (Hexagon socket
screw Ø4 × 10, 10 pcs.)
AP048 type (Hexagon socket
screw Ø4 × 10, 13 pcs.)
Note)
The fan or fan motor are attached to the
fan base. If the base is heavy, remove
each for working.
4) Pull out wires of TC1 sensor, TC2
sensor and TCJ sensor from the
holder.
5) Take off screws
(Ø4 × 10, 2 pcs.) and then
remove the piping cover.
6) Take off screw
(Ø4 × 10, 1 pc. each) and then
remove the heat exchanger fixing
boards (2 pcs.).
7) While pressing the heat
exchanger, take off screws fixing
(Ø4 × 10, 1 pc. each) of the end
boards (2 pcs.), and then take out
the heat exchanger slowly.
2. Attachment
(In case of AP027/AP048)
1) Set the heat exchanger at the
original position and then fix all
the end board, heat exchanger
fixing board and piping cover with
taken-off screws as original.
2) Insert wires for TC1 sensor, TC2
sensor and TCJ sensor into the
holder and perform wiring as
original.
3) Attach all the drain pan, partition
board, bell mouth, electric parts
box, ceiling panel, air filter and
center panel as original. Be sure
to perform drawing of wires as
same as original drawing.
3) Attach all the drain pan, partition
board, electric parts box, ceiling
panel, air filter and center panel
as original. Be sure to perform
drawing of wires as same as
original drawing.
Remarks
In case of AP027
In case of AP027
In case of AP048
: Screw position
Fan base
Fan base
Tentative hanging part
Tentative hanging part
End board
In case of AP048
Heat exchanger
fixing board
Heat exchanger
fixing board
Piping cover
Heat exchanger
Heat exchanger
Piping cover
End board
