Inverter Pcb; Checking Procedures - Daikin Sky Air Advance RZA200D7Y1B Service Manual

3.7 Inverter PCB

3.7.1 Checking procedures

To perform a power check of the inverter PCB
RZA200+250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05
2 Supply nitrogen to the refrigerant circuit. The nitrogen pressure MUST NOT
exceed 0.02 MPa.
3 Wrap a wet rag around the high pressure switch and solder the high pressure
switch pipe to the high pressure switch.
a
c
a High pressure switch
b Faston connector
c High pressure switch pipe
CAUTION
Overheating the pressure switch will damage or destroy it.
4 After soldering is done, stop the nitrogen supply after the component has
cooled‑down.
5 Connect the Faston connectors to the high pressure switch.
6 Add refrigerant
4
procedures" [ 142].
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 user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
b b
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
"3.12 Plate work" [ 111].
Service manual
81