Defect Of Compressor - Daikin VRV Inverter K Series Manual

SI-05C.BOOK Page 326 Monday, November 6, 2000 4:13 PM
How to Use The Monitor Switch On The Inverter PC Board
5.5

Defect of Compressor

L L L L 9 9 9 9
Remote Controller
Display
Supposed Causes
Troubleshooting
326
Defect of compressor
Pressure differential start
Defect of inverter unit
The
difference
between high and
NO
low pressure when starting
is 2kg/cm²=
(0.196 MPa).
YES
Disconnect the
the connection between the
compressor and
inverter.
Inverter
output voltage
check Inverter output
voltage is not balanced.
NO
(Normal if within ±8 V [Y1, YAL])
(Note) Must be measured
when frequency is
stable.
YES
After turning on again,
"L9" blinks again.
Unsatisfactory pressure
equalization
Check refrigerant system.
Replace the inverter unit.
Compressor inspection
Inspect according to the
diagnosis procedure for odd
noises, vibration and
operating status of the
compressor.
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Troubleshooting PLUS Series
SiE-05C
(VF162)