Service Manual

VMH Series

Heat Controller, Inc.

 

 

 

9.3.2.8 Current protection of compressor (ODU P3)

Current protection of compressor

Check whether the input

current of the power supply

wire is more than 12.5A

(For 27K, it is 14.5A, For

36K, it is 20A)

Yes

Check whether the

refrigerant system is ok

Check whether the

outdoor ambient

temperature is higher than

122.4°F (50°C)? No

Check whether the outdoor unit’s airflow is obstructed

No

Check whether the heat

exchanger is dirty

No

Is the refrigerant circuit blocked?

No

Replace outdoor main

board, and check

whether the system can

run normally

No

Replace the electrical

control box

 

 

 

 

Yes

 

 

Stop the unit

 

 

 

 

 

Yes Remove all obstructions for proper ventilation

 

 

 

 

Yes

 

 

Clean the heat exchanger

 

 

 

 

 

 

 

 

Evacuate the refrigerant, then use

 

 

 

high pressure nitrogen or refrigerant

Yes

 

 

 

 

to blow pipe, vacuum and recharge

 

 

 

 

 

 

with refrigerant again

 

 

 

 

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Heat Controller A-VMH27TC-1, A-VMH36QC-1, A-VMH18DC-1 service manual Current protection of compressor ODU P3

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.