─ 26 ─
0 Unscrew the screws (two PTT screws 4 × 8, indi-
cated by ) to remove the water sensor.
Water sensor
fix piece Heat exchanger
(
7
)
Heat Exchanger Section
1 Remove the covers (left, center, and right) and the H.
elem. covers. → See (6) 1 to 2.
2
Disconnect the lead wire connectors (indicated by ).
( Lead wire for the expansion valve (LEV), and lead
wires for the thermistors of the liquid and gas pipes)
3 Unscrew the screws (two PTT screws 4 × 8, indi-
cated by ). Remove the fix piece, and then replace
the heat exchanger.
4
After inserting the new heat exchanger in the unit,
connect the lead wire connectors for the expansion
valve (LEV), and for the thermistors of the liquid and
gas pipes (removed as shown in (
7
)
2
).
(Indicated by )
Water stop (steel plate)
Water stop (resin)
Reassembly procedure
*The heat exchanger is exceptionally removed for easy understanding.
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