Daikin VRV IV+ Service Manual page 237

To install the crankcase heater
3.5 Current sensor
3.5.1 Checking procedures
To perform an electrical check of the current sensor
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
1 Install the crankcase heater on the compressor.
2 Attach the spring to fix the crankcase heater.
a
a Spring
b Crankcase heater
3 Route the crankcase heater harness towards the switch box.
4 Connect the crankcase heater connector to the appropriate PCB.
WARNING
When reconnecting a connector to the PCB, do NOT apply force, as this may damage
the connector or connector pins of the PCB.
5 Fix the crankcase heater harness using new tie straps.
INFORMATION
Replace all cable ties that were cut during removal.
Is the problem solved?
Yes
No
Prerequisite: Stop the unit operation via the central controller.
Prerequisite: Turn OFF the respective circuit breaker.
1 Remove the required plate work, see
2 Locate the current sensor connector on the main PCB, see
4
diagram" [ 385].
b
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
"3.15 Plate work" [
3 Components
|
4 315].
"6.2 Wiring
Service manual
237