Daikin VRV IV+ Service Manual page 337

3.19 Solenoid valve
3.19.1 Checking procedures
To perform a mechanical check of the solenoid valve
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
a Refrigerant pressure sensor
b Refrigerant pressure sensor pipe
CAUTION
Overheating the pressure sensor will damage or destroy it.
4 After soldering is done, stop the nitrogen supply after the component has
cooled‑down.
5 Route the refrigerant pressure sensor harness towards the appropriate PCB.
6 Connect the refrigerant pressure sensor connector to the appropriate PCB.
7 Fix the refrigerant pressure sensor harness using new tie straps.
8 Add refrigerant
4
procedures" [ 368].
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.
b a
to the refrigerant
Action
No further actions required.
Return to the troubleshooting of the
specific error and continue with the
next procedure.
3 Components
|
circuit, see "4.2.2 Repair
4
"3.15 Plate work" [ 315].
Service manual
337