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Components
Service manual
123
250D7Y1B
Sky Air Advance-series
ESIE19-13A – 2020.05
To perform a mechanical check of the solenoid valve
Prerequisite:
Stop the unit operation via the user interface.
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 solenoid valve coil firmly fixed
and not visually damaged?
Action
Yes
Perform an electrical check of the
solenoid valve, see
122].
No
Fix or replace the solenoid valve coil,
see
124].
To perform an electrical check of the solenoid valve
Prerequisite:
First perform a mechanical check of the solenoid valve, see
122].
1
Unplug the solenoid valve connector from the main PCB.
2
Measure the resistance of the solenoid valve coil.
Name
Symbol
Location (PCB) Connector
Winding
resistance
Pressure
equalization
valve
Y3S
Main
X8A
2.2 kΩ±10%
Is the measured value correct?
Action
Yes
Continue with the next step.
No
Replace the solenoid valve coil, see
124].
3
Re‑connect the solenoid valve connector to the main PCB.
4
Turn ON the power using the respective circuit breaker.
5
Turn on the unit using the user interface.
6
Connect the service monitoring tool to the unit and check if the specific
solenoid valve is activated or NOT.
INFORMATION
The solenoid valve is used for pressure equalization before start‑up control. The
solenoid valve is activated (ON) for some time before the compressor starts (after
the power reset) and is de‑activated (OFF) shortly after the compressor starts.
7
Measure the voltage (power supply) on the solenoid valve connection on the
PCB. The measured voltage MUST be:
▪
0 V AC when the solenoid valve is NOT activated
▪
230 V AC when the solenoid valve is activated
8
Wait for the activation or deactivation of the specific solenoid valve and again
measure the voltage (power supply) on the solenoid valve connection on the
PCB.
Содержание Sky Air Advance RZA200D7Y1B
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