Inspection item : EVI EEV of Outdoor Unit.
Determine the EVI EEV operation status of the each Outdoor Unit.
If the judgment of EVI EEV is "Undetermined" : Checking in accordance with the following order.
Yes
Check the Valve and Sensor.
No
Auto Trial Operation results,
is Valve and Sensor normal?
Yes
Confirmation and Measures
No
Is EVI In/Out
Temperature sensor normal?(Assembly status,
connector, resistance, etc.)
Yes
Confirmation and Measures
No
Is EVI EEV connector normal?
Yes
Replace Coil
No
Is EVI EEV coil normal?
(Resistance, wire breaking, operation impossible,
etc.)
Replace Main EEV
Complete
※ Main EEV coil resistance value based (Measured temperature is 20°C)
EEV Wiring Diagram
Operating
Voltage
(VDC)
Resistance of
between the
phase (Ω)
Yes
Replace Hub PCB
No
Is PCB Output signal normal?
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