Line Insulation

OUTDOOR UNIT

PITCH SUCTION LINE TOWARD OUTDOOR UNIT 1/2" FRO EVERY 10' OF LINE

INDOOR UNIT ABOVE OR

LEVEL TO OUTDOOR UNIT

70'

MAX. LIQUID LINE SUCTION LINE OIL TRAP WHEN INDOOR

ADDITIONAL SUCTION LINE OIL TRAP FOR EACH 20 FOOT RISE OF PIPE

INDOOR UNIT

INVERTED LOOP LIQUID LINE

LIQUID LINE

INDOOR UNIT

UNIT IS 4 FEET OR

M O R E B E L O W

OUTDOOR UNIT

INDOOR UNIT BELOW OUTDOOR UNIT

B-1

OUTDOOR UNIT

INDOOR UNIT

50'

MAX.

SUCTION LINE

B-2Figure 4

Only refrigeration-grade copper piping (dehydrated and sealed) should be used. Take extreme care to keep the refrigerant tubing clean and dry prior to and during installation. If in doubt, blow out the tubing with dry nitrogen to remove any chips or debris before connection. Always keep tubing sealed until it is in place and the connections are to be made.

Refrigerant piping should be as short as possible, with a minimum of elbows or bends, to avoid capacity loss and increased operating costs.

Refrigerant lines must be adequately supported. If metal strapping is used to secure the tubing, do not allow the strapping to directly contact the tubing. Use a closed cell insulation to separate the strapping from the tubing.

Do not kink or twist the tubing.

Refrigerant piping should not be installed in a cement slab, as this limits access to the refrigerant should a leak be suspected.

To ensure good oil return to the compressor, it is important to pitch the horizontal suction line toward the compressor, approximately 1/2" for every 10' of line.

Suction line requires insulation in order to prevent condensation from forming on the piping and to prevent heat gain caused by surrounding air. Generally 3/8" wall thickness of Armflex or equivalent is satisfactory. In severe application (hot, high humidity areas) greater thickness may be required. Apply the line insulation by sliding it on the sealed tuing before cutting and making connections.

Liquid line does not necessarily need insulation, however, if they are exposed to high ambient temperatures (i.e. kitchen, boiler rooms, hot attics & rooftop surface), then, they should be insulated. Make sure to use the proper size tubing for the liquid line to prevent liquid refrigerant flashing to a vapor within the liquid line.

Do not allow the vapor line and liquid line to touch together. This would cause an undesirable heat transfer resulting in capacity loss and increased power consumption.

HR24D2VAR, HR36D2VAR, HR18D2VAR, HR30D2VAR specifications

Haier, a globally recognized brand in home appliances, has developed a line of air conditioning units that includes the HR30D2VAR, HR18D2VAR, HR36D2VAR, and HR24D2VAR models. These units are designed to deliver optimal comfort and energy efficiency for both residential and commercial spaces.

One of the standout features of these models is their advanced inverter technology. This allows the air conditioners to adjust the compressor speed according to the cooling requirements of the room. As a result, these units can cool spaces rapidly while consuming less energy compared to traditional models. The inverter technology not only contributes to energy savings but also ensures a quieter operation, making them ideal for bedrooms and workspaces.

The HR series models are equipped with multiple cooling modes, allowing users to select the most appropriate setting based on their comfort needs. Whether it's a hot summer day or a mild evening, users can tailor the temperature to their liking. Additionally, the models come with a sleep mode that gradually adjusts the temperature, providing a comfortable sleeping environment while saving energy.

Another significant characteristic of these air conditioners is their energy efficiency ratings. Many of the HR series units boast high SEER (Seasonal Energy Efficiency Ratio) ratings, indicating their effectiveness in cooling while minimizing electricity consumption. This is particularly beneficial for environmentally conscious consumers looking to reduce their carbon footprint.

Furthermore, the HR30D2VAR, HR18D2VAR, HR36D2VAR, and HR24D2VAR models incorporate robust air filtration systems designed to improve indoor air quality. These filters capture dust, pollen, and other allergens, making it an excellent choice for those with respiratory issues or allergies. Regular maintenance is also simplified, as filters can be easily accessed and cleaned or replaced.

Connectivity is another feature that enhances user experience. Many of the Haier air conditioning units in this series come with smart technology compatibility, allowing users to control their air conditioner through their smartphone or smart home systems. This remote control capability enables adjustments even when users are away from home, providing convenience and energy management.

In summary, the Haier HR30D2VAR, HR18D2VAR, HR36D2VAR, and HR24D2VAR air conditioners combine advanced technologies such as inverter operation, high energy efficiency, robust filtration systems, and smart connectivity. These features make them suitable for a variety of settings, ensuring comfort and ease of use for homeowners and businesses alike.