To Install The Switch Box - Daikin altherma 3 M Service Manual

3.17.5 To install the switch box

EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
Single phase unit
1 Use a piece of cloth to remove the old thermal interface grease and clean the
heat sink surface(s) and refrigerant pipe.
2 Apply new thermal interface grease to the refrigerant pipe contact surface of
the heat sink (on the main PCB). Distribute the grease as evenly as possible.
CAUTION
ALWAYS apply new grease on the PCB heat sink. NOT doing so may cause the PCB to
fail due to insufficient cooling.
3 Install the switch box on the correct location in the outdoor unit. Take the
following into account:
▪ Guide the sheet metal plate of the service port in front of the switch box
mounting plate to correctly install and avoid pipe bending.
▪ Slightly tilt the refrigerant pipe forward (±10°) and avoid that the thermal
interface grease gets smeared everywhere.
▪ Hook the switch box mounting plate in the support plate on the right hand
side.
4 Install and tighten the 4 switch box fixation bolts.
d
d
a Bolt (heat sink cover)
b Heat sink cover
c Refrigerant pipe
d Fixation bolt (switch box)
5 Correctly install the refrigerant pipe on the heat sink (proper contact with the
thermal interface grease on the heat sink of the switch box). Install the heat
sink cover.
6 Install the 3 bolts on the heat sink cover and tighten the bolts.
INFORMATION
Make sure that the refrigerant pipe is correctly installed on the main PCB heat sink.
Do NOT touch the part of the refrigerant pipe that is mounted in the heat sink.
7 Connect the connector X803A to the noise filter PCB.
8 Route the wiring inside the wire clips on the back side of the switch box and
route them through the hole (right upper side of switch box) towards the
front of the switch box.
3 Components
|
c
d
a
a
b
a
d
Service manual
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