Daikin VRV IV+ Service Manual page 286

3 | Components
To install the inverter PCB
Service manual
286
e
e f
e Screw
f Heat sink
31 Remove the screws that fix the inverter PCB to the heat sink.
WARNING
Thermal grease is applied to the heat sinks. Use gloves when separating the heat
sinks from the inverter boards.
32 Unlatch the PCB supports one by one using a small pair of pliers.
33 Remove the inverter PCB.
34 To install the new inverter PCB, see
For single fan units
1 Clean the heat sink (c) surface and apply a thin layer of heat sink compound to
the heat sink surface.
2 Install the inverter PCB on its correct location.
3 Latch the PCB supports (c) using a small pair of pliers to fix the PCB.
4 Install and tighten the 2 screws (d) to fix the inverter PCB to the heat sink
plate.
c
a
c b
a Connector
b Connector
c PCB support
d Screw
5 Install the 4 screws (f) to fix the inverter PCB (d) to the inverter PCB assembly.
e e e
e e f e
"3.10.2 Repair
c b a c
b c b b b b b
4
procedures" [ 282].
a c
a
c
d
d
c
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05