Toshiba HWT-602S21SM3W-E(TR) Service Manual page 252

Exchange
No.
parts name
⑤
Electrical
IPDU
(MCC-1780)
⑥
1. Interface CDB & FAN IPDU(MCC-1781)
Electrical
IPDU
"Detachment(Interface CDB & FAN IPDU)"
(MCC-1781)
1) Following to work of Detachment of
Turn off the power supply of the outdoor unit and
wait at least 5 minutes for the capacitor to discharge.
2) Remove all connectors connected to the Interface CDB
& FAN IPDU. [Fig. 6-1].
3) Detach the Interface CDB & FAN IPDU from
4 suppoters.
[Fig. 6-1]
4) Remove the heat sink from the Interface CDB & FAN
IPDU
* Use this heat sink as it is after replacing IPDU.
NOTE
When removing the connectors, release the safety lock of
the housing.
"Attachment(Interface CDB & FAN IPDU)"
Attach the new CDB & IPDU board in the reverse process
of "Detachment(Interface CDB & FAN IPDU)".
NOTE
Coat the heat sink on the IPDU board with the heat sink
silicone uniformly before installing the heat sink. Please
following below tighten torque of screws.
Work procedure
WARNING
by removing the 2 screws(Φ3×14).[Fig. 6-1]
Tightening torque
Screw of Φ3
* See "5-5. Outdoor control board"
.

0.55N • m
251
Remarks
[Fig. 5-2]
Suppoters
- MCC-1781" for the location of each
connector.
[Fig. 6-1]
Screw (for heat sink)
Suppoters