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The CLIMATEMASTER C36B0003N12 is a bi-flow filter drier designed for use in heat pump and refrigeration systems. It removes moisture, acid, and solid contaminants from refrigerant lines, protecting the compressor and other critical system components from damage and premature wear. The bi-flow design allows refrigerant to pass through in either direction, making it well suited for heat pump systems that reverse refrigerant flow when switching between heating and cooling modes. Licensed HVAC technicians install this component as part of routine service or system commissioning.
This filter drier is used in residential and light commercial heat pump systems where reversible refrigerant flow is required. The 3/8-inch connection size fits standard refrigerant line configurations found in split-system and packaged heat pump equipment. It is particularly relevant in geothermal and air-source heat pump installations where maintaining clean, dry refrigerant circuits is essential for reliable long-term operation.
Designed as an OEM-style replacement bi-flow filter drier for heat pump systems requiring a 3/8-inch connection. Specific compatible model information was not provided in the available product data.
Installation should be performed by a licensed HVAC technician in accordance with applicable mechanical codes and refrigerant handling regulations under EPA Section 608. Recover all refrigerant and confirm system pressure is at zero before cutting into refrigerant lines. Braze or connect the drier in the correct inline position with attention to flow direction markings where applicable, and evacuate the system to the required vacuum level before recharging.
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