Daikin VRV IV+ Service Manual page 302

3 | Components
To install the noise filter PCB
3.13 Oil return valve
3.13.1 Checking procedures
To perform a mechanical check of the oil return valve
Service manual
302
1 Install the noise filter PCB on its correct location.
2 Latch the PCB supports to fix the noise filter PCB.
b
a
a
a
a
b
a Connector
b PCB supports
3 Connect all the wires to the connectors of the noise filter PCB.
INFORMATION
The connectors on the PCB can be screw- or Faston-type, depending on the model.
Is the problem solved?
Yes
No
INFORMATION
It is recommended to perform the checks in the listed order.
Prerequisite: Stop the unit operation via the central controller.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Verify that the screw is firmly fixing the coil to the valve body.
2 Check if any damage or burst is present.
Is the oil return valve coil firmly fixed
and not visually damaged?
Yes
No
b b
b b
Action
No further actions required.
Return to "3.12.1 Checking
procedures" [
PCB and continue with the next
procedure.
"3.15 Plate
Action
Perform an electrical check of the oil
return valve, see
procedures" [
Fix or replace the oil return valve coil,
see "3.13.2 Repair
a
a
a
a
4
298] of the noise filter
4
work" [ 315].
"3.13.1 Checking
4
302].
4
procedures" [ 304].
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05