Installation Service

11.PUMP DOWN

11.1What is Pump Down?

Pump down means collecting all refrigerant gas in system back into the outdoor unit without losing any of gas. Pump down is used when the unit is to be moved or before serving the refrigerant circuit.

11.2 Pump Down Procedure

NOTE Be sure to carry out pump down with the unit in cooling mode.

1.Connect the Lo side charging hose of the manifold valve to the service port on the wide tube service valve. (Fig 39)

2.Using a hex wrench, turn the narrow tube service valve clockwise all the way to close the service valve (Fig 40). (Be sure to confirm that the wide tube service valve is fully open.)

3.Press the ON / OFF button and start cooling operation.

4.When the low pressure gauge reading falls from 1 to 0.5 kg/cm2, fully close the wide tube valve stem (Fig 41). Then quickly stop the unit.

5.Disconnect all gauges and hoses, and replace the valve caps as they were before.

Narrow tube

Hex wrench

Wide tube

Valve Cap

Vacuum hose to manifold valve

Fig. 41

Indoor unit

Outdoor unit

Manifold valve

Pressure

 

gauge

Lo Hi

 

Fig. 39

Narrow tube

Hex wrench

Wide tube

Valve Cap

Vacuum hose to manifold valve Fig. 40

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Haier SAP-K18AM, KC18AGH instruction manual What is Pump Down?, Pump Down Procedure
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KC18AGH, SAP-K18AM specifications

The Haier SAP-K18AM and KC18AGH are part of Haier's innovative line of air conditioning solutions designed to provide efficient cooling and exceptional comfort in various environments. These models stand out for their blend of modern technology, user-friendly features, and energy efficiency.

One of the main features of the Haier SAP-K18AM is its powerful cooling capacity, which enables it to quickly lower indoor temperatures, making it ideal for larger spaces or warmer climates. With a cooling capacity of 18000 BTU, this model ensures that even during the hottest summer days, users can enjoy a refreshing indoor atmosphere. The unit operates quietly, allowing for peaceful relaxation or focused work without the disturbance of loud compressor noises.

The KC18AGH model is equipped with advanced inverter technology that adjusts the compressor speed according to the cooling demand. This feature not only enhances energy efficiency but also helps to maintain a consistent temperature throughout the space. The inverter technology significantly reduces electricity consumption compared to non-inverter models, making it an environmentally friendly choice.

Both models come with a range of convenient features, including multiple cooling and fan speed options, sleep mode, and a programmable timer. The sleep mode function gradually increases the temperature at night, ensuring a comfortable sleep environment while saving energy. The programmable timer allows users to set the air conditioning unit to operate only when needed, further optimizing energy use.

Additionally, the Haier SAP-K18AM and KC18AGH are designed with user comfort in mind. They come with an easy-to-use remote control, allowing for effortless adjustments from across the room. The units also include a self-cleaning feature that helps reduce mold and bacteria buildup, ensuring that the air quality remains high.

In conclusion, the Haier SAP-K18AM and KC18AGH air conditioners represent cutting-edge technology and design. With powerful cooling capabilities, energy-efficient inverter technology, and a suite of user-friendly features, these models are ideal for anyone looking to improve the comfort and quality of their indoor environment. Whether for residential or commercial use, Haier continues to set the standard in reliable and effective air conditioning solutions.
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