Evacuation

All new installations must be evacuated to a deep vacuum in order that all noncondensible gases and moisture are removed prior to charging the system. Air in a system causes high condensing pressure, which increases power consumption and reduces performance. The presence of moisture in a system can render it inoperable in a very short time. Proper evacuation assures a dry, uncontaminated system. Here is the recommended evacuation procedure:

1.Connect vacuum pump to both liquid and suction valve service ports.

2.Evacuate the interconnecting tubing and indoor coil to 500 microns or less for a minimum of 30 minutes. Close the valve to the vacuum pump and wait 15 minutes. Vacuum should not rise above 800 microns. If unable to obtain 500 microns, or vacuum rises above 800 microns over 15 minutes period, discontinue evacuation, pressurize and check for leaks. Repair any leaks found and repeat the step 2.

3.Close valve to the vacuum pump and stop pump.

4.When sure of a tight, well evacuated system, charge with refrigerant.

Charging the System

(For systems with capillary tube or fixed orifice metering device)

Before checking the system charge, make sure that the outdoor unit and indoor coil must be an approved match per the unit specification. The indoor conditions should be within 2F of the desired comfort conditions.

!WARNING - Do not vent refrigerant to the atmosphere! It is a violation of federal law to do so. If the refrigerant needs to be removed from a system to correct the charge inside, always use a recovery or recycling device.

!WARNING - To prevent personal injury, wear safety glasses and gloves when handling refrigerant.

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Haier HC36D2VAR, HC42D2VAR, HC30D2VAR, HC24D2VAR, HC18D2VAR operation manual
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HC18D2VAR, HC24D2VAR, HC30D2VAR, HC36D2VAR, HC42D2VAR specifications

Haier has long been a name synonymous with innovative home appliances, and their line of high-efficiency mini-split air conditioning systems exemplifies this tradition of excellence. Among the standout models are the HC18D2VAR, HC24D2VAR, HC30D2VAR, HC36D2VAR, and HC42D2VAR. Each of these units brings unique features tailored to meet diverse cooling needs while emphasizing efficiency, comfort, and usability.

The HC18D2VAR is designed for smaller spaces, affording homeowners effective cooling without breaking the bank on energy costs. It features variable refrigerant flow technology, allowing the system to adjust its capacity based on the current temperature and cooling load. This ensures optimal energy use while maintaining a consistent indoor environment. The built-in inverter technology further enhances efficiency, reducing energy consumption compared to traditional systems.

Moving to the HC24D2VAR, this model expands its capabilities, making it suitable for medium-sized rooms or offices. It boasts a sleek design that allows for discreet installation, while the advanced air filtration system effectively captures dust, pollen, and other allergens, enhancing indoor air quality. Additionally, its quiet operation ensures minimal disruption, making it ideal for bedrooms and study areas.

The HC30D2VAR is tailored for slightly larger applications, with superior cooling and heating performance. This model incorporates smart technologies such as Wi-Fi connectivity, enabling users to control their air conditioning remotely via a smartphone app. It also featuresmultiple airflow settings and a programmable timer that provides convenience for busy lifestyles.

For those needing even more cooling power, the HC36D2VAR and HC42D2VAR models are designed to handle larger spaces while maintaining energy efficiency. These units come equipped with advanced cooling technologies, including turbo cooling mode for quick temperature adjustment, and an extended range of operating temperatures, ensuring reliable performance in varying climates. The sleek aesthetic of these models blends seamlessly with modern interior designs.

All five models are equipped with user-friendly interfaces and remote control options, simplifying the adjustment of settings distance. With their high Seasonal Energy Efficiency Ratios (SEER), these Haier units provide a balance of comfort and efficiency, making them an excellent choice for homeowners looking to enhance their living environment while being environmentally conscious.

Overall, the Haier HC18D2VAR, HC24D2VAR, HC30D2VAR, HC36D2VAR, and HC42D2VAR models present a comprehensive solution for modern cooling needs, combining technology, efficiency, and design into one impressive package.
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