Daikin VRV IV+ Service Manual page 301

3.12.2 Repair procedures
To correct the wiring from the main power supply terminal to the noise filter PCB
To remove the noise filter PCB
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Is the problem solved?
No
Prerequisite: Stop the unit operation via the central controller.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Access the switch box, see
2 Make sure that all wires are firmly and correctly connected, see
4
diagram" [ 385].
3 Check the continuity of all wires.
4 Replace any damaged or broken wires.
Is the problem solved?
Yes
No
Prerequisite: Stop the unit operation via the central controller.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Access the switch box, see
2 Disconnect all the wires of the noise filter PCB.
INFORMATION
The connectors on the PCB can be screw- or Faston-type, depending on the model.
b
a
a
a
a
b
a Connector
b PCB supports
3 Carefully pull the PCB at the side and unlatch the PCB supports one by one
using a small pair of pliers.
4 To install the new noise filter PCB, see
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"3.15 Plate
4
"3.15 Plate work" [ 315].
Action
No further actions required.
Return to "3.12.1 Checking
procedures" [
PCB and continue with the next
procedure.
"3.15 Plate
4
"3.15 Plate work" [ 315].
b
b
b
b
"3.12.2 Repair
3 Components
|
4
work" [ 315].
"6.2 Wiring
4
298] of the noise filter
4
work" [ 315].
a
a
a
a
4
procedures" [ 301].
Service manual
301