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Exchange parts
No.
name
9
Bottom plate heater
Work procedure
1. Detachment
1) Recover the refrigerant. (See 16-1. Refrigerant
recovery control)
Drain the water in the hydro unit before refrigerant
recovery.
2) Execute steps 1-1, 2, and 3.
3) Detach the two fin guards.
(9 pcs. hex screws Ø4 × 10)
4) Detach the two piping panels.
(5 pcs. hex screws Ø4 × 10)
5) Disconnect the 3" and 5" refrigerant pipes.
6) Disconnect the fan motor connectors from the PC
board (one for the upper fan and one for the lower
fan. Cut the tie-lap bands (6) location)
7) Detach the fan motor base.
(2 pcs. hex screws Ø5 × 10)
8) Remove the insulation mats (One above the
compressor and two around it).
9) Remove the three nuts fixing the compressor.
10) Remove the screw fixing the partition plate and
bottom plate.
(1 pcs. ST1T Ø4 × 8)
11) Remove the screws fixing the heat exchanger
and bottom plate.
(2 pcs. ST1T Ø4 × 8)
12) Disconnect the connector of the bottom plate
heater from the CDB PC board.
13) Lift the main unit up and detach the bottom plate.
14) Replace the heater.
(21 pcs. ST2T Ø4 × 8 and 2 pcs. hex screw Ø5 ×
10)
2. Attachment
Execute the opposite of steps 1)-13) in reverse
order.
Note for step 10
The partition plate has a cutout for the heater.
Connect the heater cord through the cutout when
reassembling the unit.
Cut out
3)
6)
11)
Lift up the main unit
14)
198
Remarks
4)
Fan motor connection
7)
8)
9)
10)
13)
Bottom plate heater.
The connector must get close to this screw.
Only this cord clamp must be attached downward-facing.
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