Description
The Bard HVAC CMH-20 Low Ambient Control is a precision-engineered accessory designed to allow air conditioning and heat pump systems to operate reliably in cold outdoor temperatures. Without low ambient controls, refrigerant pressure can drop below safe operating thresholds during cool or cold weather, causing compressor damage or system lockout. The CMH-20 addresses this challenge by modulating condenser fan operation to maintain proper head pressure, protecting the system and ensuring consistent performance across a wide range of outdoor conditions.
Key Features
- Designed for use with Bard HVAC equipment for seamless OEM compatibility
- Maintains proper refrigerant head pressure during low ambient temperature conditions
- Helps prevent compressor damage caused by low-pressure lockout in cold weather
- Enables year-round cooling and heat pump operation in variable climates
- Compact design for straightforward installation in existing Bard systems
- Built to Bard’s quality standards for long-term reliability in the field
Application
The CMH-20 is ideal for commercial and light-industrial applications where cooling or heat pump operation is required during cold-weather months. It is particularly valuable in climates with wide seasonal temperature swings, ensuring that HVAC systems remain fully operational and protected regardless of outdoor conditions.
Why Choose Bard HVAC?
Bard Manufacturing has been a trusted name in the HVAC industry for decades, producing wall-mount air conditioners, heat pumps, and accessories known for their durability and performance. The CMH-20 Low Ambient Control reflects Bard’s commitment to providing technicians and building owners with the accessories needed to maximize equipment uptime and efficiency.







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