2-way, 3-way Valve

(1) Pumping down

Indoor unit

Liquid side

 

Close

Outdoor unit

2-Way

valve

Gas side

Open

3-Way

valve

Indoor unit

Liquid side

 

Close

2-Way

valve

Gas side

Open

3-Way

valve

manifold gauge

Low- handle

(CLOSE)Hi- handle (CLOSE)

Procedure

1.Confirm that both the gas side and liquid side valves are set to the open position.

-Remove the valve stem caps and confirm that the valve stems are in the raised position.

-Be sure to use a hexagonal wrench to operate the valve stems.

2.Operate the unit for 10 to 15 minutes.

3.Stop operation and wait for 3 minutes, then con- nect the manifold gauge to the service port of the gas side valve.

-Connect the hose of the gauge with the push pin to the service port.

4.Air purging of the charge hose.

-Open the Low-handle valve on the gauge slightly to air purge from the hose.

5.Set the liquid side valve to the closed position.

6.Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg/cm2g.

7.Immediately set the gas side valve to the closed position.

-Do this quickly so that the gauge ends up indicat- ing 1kg/ g.

8.Disconnect the charge set, and mount the liquid side and gas side valve caps and the service port nut.

-Use torque wrench to tighten the service port nut to a torque of 1.8kg.m.(4.2kg.m/5.5kg.m)

-Be sure to check for gas leakage.

Be sure to short pressure S/W. otherwise Low pressure S/W detect low pressure skete and stops the compressor.

Service Manual 77

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LG Electronics AMNH123APM0(LMAN120HNS), A2UC243FA0 (LMU240CE) Pumping down, Procedure, Air purging of the charge hose

AMNC093APM0(LMAN090CNS), AMNH123DEA0 (LMN120HE), A2UC243FA0 (LMU240CE), AMNH123APM0(LMAN120HNS), A2UH243FA0(LMU240HE) specifications

LG Electronics has established a prominent position in the HVAC (heating, ventilation, and air conditioning) market with its diverse range of air conditioning units, including models AMNH123APM0 (LMAN120HNS), AMNH123DEA0 (LMN120HE), AMNC123DEA0 (LMN120CE), A2UH243FA0 (LMU240HE), and A2UC243FA0 (LMU240CE). Each of these models is designed to provide efficient cooling and heating solutions, boasting advanced technologies and user-friendly features.

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The AMNC123DEA0 (LMN120CE) is another compelling choice, featuring a sleek design that fits seamlessly into any décor. It operates efficiently in various weather conditions, maintaining a consistent indoor climate year-round. Its smart diagnostic system simplifies maintenance, allowing for timely troubleshooting and ensuring long-term reliability.

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In conclusion, LG Electronics offers a range of HVAC solutions with its AMNH123APM0, AMNH123DEA0, AMNC123DEA0, A2UH243FA0, and A2UC243FA0 models. With energy-efficient technology, user-friendly features, and advanced performance capabilities, these air conditioning units are designed to meet the diverse cooling and heating needs of modern consumers while ensuring environmental sustainability.