Elba R410A Anleitung zur Fehlerbehebung PDF herunterladen (Seite 131)

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Only for training and service purposes

LGE Internal Use Only

Outdoor Units

3.1.2 Discharge pipe control for constant compressor

1) There can be two situations

(a) Sensor is failed (error code for sensor failure will be generated)

(b) Abnormal high temperature discharge temperature (error code for high discharge will be generated)

Both cases unit will stop.

2) Compressor working

(a) If discharge pipe temperature < T1 Compressor ON, LEV on-time control

(b) T2 ≤ discharge pipe temperature < Toff (Hysteresis control) Expansion valve up by ßpulse every 1 min.

If LEV is in the starting control it will follow it as it is.

System will stop if this situation occurs 5 times in 1 hour and error code will be generated.

COMP

Step

Toff(105)°C

D-Pipe temp

OFF

T1(90)°C

Expansion

valve

Pulse

On time

control

On-time

control

T2(95)°C

Stop

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Elba R410A Anleitung zur Fehlerbehebung Seite 131