Service Manual

VMH Series

Heat Controller, Inc.

 

 

 

9.3.2.4 Temperature protection of compressor discharge (ODU P0)

Temperature protection of

compressor discharge

Check whether the

compressor discharge temp. is more than 239°F (115°C)?

No

Check whether the wiring

connection is correct between compressor discharge temp. sensor and PCB according to wiring diagram?

Yes

The discharge temp.

sensor may be

broken.

Check whether the

resistance of compressor discharge temp. sensor is right refer to the Appendix 2

 

 

Check whether there is

 

 

 

 

Yes

Yes

 

 

Stop leak and add refrigerant as needed

 

a refrigerant leak

 

 

 

 

 

 

 

 

 

 

 

Correct the wiring connection

No

 

 

 

 

 

 

 

No Replace the compressor discharge temp. sensor

Yes

Replace outdoor main board

36

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Image 36
Heat Controller A-VMH36QC-1, A-VMH27TC-1 Temperature protection of compressor discharge ODU P0, Check whether the wiring

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.