LG ACHH Series Manual page 35

EEV
Brown
Red
Red
Blue
Orange
Yellow
• Pulse signal output value and valve operation
Output(ø) No.
ø1
ø2
ø3
ø4
• Output pulse sequence
- In valve close state: 4 ' 3 ' 2 ' 1 ' 4
- In valve open state: 1 ' 2 ' 3 ' 4 ' 1
* 1. If EEV open angle does not change, all of output phase will be OFF
2. If output phase is different or continuously in the ON state, motor will not operate smoothly and start vibrat-
ing.
• EEV valve operation
Valve
close
open
Angle
open
White
ø1
Red M
ø3
Orange
ø2 ø4
Yellow Brown Blue
Output state
1
ON
ON
OFF OFF
OFF OFF
Full open
1 950 pulses
pulse
The phenomena from main component failure
2
ON OFF
ON ON
OFF
OFF
- At power ON, open angle signal of 2 000 pulses output and
valve position is set to ⓐ
If valve operates smoothly, no noise and vibration occurs and
if valve is closed. noise occurs.
- Noise from EEV can be confirmed by touching the EEV sur-
face with a screw driver and listening the EEV noise.
- If liquid refrigerant is in EEV, the noise is lower.
- 35 -
3 4
OFF
ON
ON
OFF