Heat Controller, Inc.

VMH Series

Service Manual

 

 

 

2. Refrigerant charging

Procedure:

1). Connect the charge hose to the charging cylinder, open the 2-way valve and the 3-way valve Connect the charge hose which you disconnected from the vacuum pump to the valve at the bottom of the cylinder. Because the refrigerant is R-410A, turn the cylinder upside down, such that the bottom is upward, to ensure a liquid charge.

2). Purge the air from the charge hose

Open the valve at the bottom of the cylinder and press the check valve on the charge set to purge the air (Do not vent refrigerant into the atmosphere).

3) Put the charging cylinder onto the electronic scale and record the weight.

4). Open the valves (Low side) on the charge set and charge the system with liquid refrigerant

If the system cannot be charge with the specified amount of refrigerant, or can be charged with a little at

a time (approximately (150g),5oz. each time) , operating the air conditioner in the cooling cycle. Wait

approximately 1 minute and then repeat the procedure as needed.

5).When the electronic scale displays the proper weight, disconnect the charge hose from the 3-way

valve’s service port immediately

If the system has been charged with liquid refrigerant while operating the air conditioner, turn off the air conditioner before disconnecting the hose.

6). Replace the valve stem caps and the service port that were previously removed. Use torque wrench to tighten the service port cap to a torque of 18N.m.

Be sure to check for gas leakage using soap water.

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Heat Controller A-VMH27TC-1, A-VMH36QC-1, A-VMH18DC-1 service manual Refrigerant charging Procedure
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A-VMH18DC-1, A-VMH36QC-1, A-VMH27TC-1 specifications

The Heat Controller A-VMH series, consisting of models A-VMH27TC-1, A-VMH36QC-1, and A-VMH18DC-1, represents a sophisticated range of advanced heating and cooling systems designed for residential and commercial applications. These units are engineered to provide efficient climate control, ensuring optimal comfort throughout the year.

One of the standout features of the A-VMH series is its energy efficiency. With advanced inverter technology, these units adjust their power consumption based on the heating or cooling demand, ensuring minimal energy wastage. This not only contributes to lower energy bills but also reduces the carbon footprint, making these systems an environmentally friendly choice.

Each model in the A-VMH series comes equipped with a multi-stage filtration system designed to improve indoor air quality. The filters capture dust, allergens, and other particulate matter, ensuring that the air circulated through the living spaces is clean and fresh. This is particularly beneficial for households with allergy sufferers or respiratory issues.

The A-VMH27TC-1 model stands out for its compact design, making it ideal for smaller spaces without compromising on performance. It offers a cooling capacity of 27,000 BTU and is perfect for apartments or cozy living areas. The A-VMH36QC-1, on the other hand, provides a robust 36,000 BTU cooling capacity, making it suitable for larger rooms or commercial spaces. Its advanced heat pump technology allows for efficient heating even in colder climates. Lastly, the A-VMH18DC-1 model balances functionality and space-saving design, providing 18,000 BTUs for medium-sized areas.

All models are equipped with smart connectivity options, allowing users to control the temperature settings, adjust modes, and monitor energy consumption through mobile apps or smart home systems. This modern convenience provides users with the flexibility to maintain comfort according to their schedules and preferences.

Durability is also a hallmark of the A-VMH series. Each unit is built with high-quality materials and components, ensuring longevity and reliable performance. Moreover, the whisper-quiet operation of these units enhances the overall comfort, allowing users to enjoy their spaces without disruptive noise.

In summary, the Heat Controller A-VMH27TC-1, A-VMH36QC-1, and A-VMH18DC-1 are ideal choices for anyone seeking efficient, reliable, and smart climate control solutions. With their combination of energy efficiency, advanced filtration, smart capabilities, and robust design, these units meet the diverse needs of modern living and ensure lasting comfort in any environment.
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