Manufacturer Name: Bard HVAC Product Number: CMA-28 OEM Part Number: CMA-28 Product Description: Low Ambient Fan Control(Equip) Weight:0.74lbs/335.66g The Bard CMA-28 Low Ambient Fan Control is a useful device for protecting your air conditioner, heat pump, or other R-410A refrigerant systems in cold weather. It automatically turns on and off the condenser fan based on the liqu... https://www.partshnc.com/low-ambient-fan-controlequip