Test Operation
9) EVI EEV
■ Inspection item : EVI EEV of Outdoor Unit.
■ Error code: None (The resulting report "Undetermined")
■ 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.
Auto Trial Operation results,
is Valve and Sensor normal?
Temperature sensor normal?(Assembly status,
connector, resistance, etc.)
Is EVI EEV connector normal?
Is EVI EEV coil normal?
(Resistance, wire breaking, operation impossible,
Is PCB Output signal normal?
Replace Main EEV
9-12
Yes
Is EVI In/Out
Yes
Yes
etc.)
Yes
Yes
Complete
※ Main EEV coil resistance value based (Measured temperature is 20°C)
EEV Wiring Diagram
No
Check the Valve and Sensor.
No
Confirmation and Measures
No
Confirmation and Measures
No
No
Replace Hub PCB
Operating
Resistance of
Voltage
between the
(VDC)
phase (Ω)
Replace Coil
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