Climatemaster C36B0003N01 Bi-flow Filter Drier 3/8 Inch

Product Description

The CLIMATEMASTER C36B0003N01 is a bi-flow filter drier designed for use in heat pump and refrigeration systems where refrigerant flows in both directions depending on the operating mode. The 3/8 inch sweat connection makes it suitable for copper line sets in standard residential and light commercial installations. This component filters moisture, acid, and solid particulates from the refrigerant circuit, protecting downstream components such as the compressor, expansion valve, and metering devices from contamination-related damage. It is installed by licensed HVAC technicians as part of routine service or system replacement work.

This filter drier is particularly suited for heat pump systems that reverse refrigerant flow between heating and cooling cycles. In a standard uni-directional system, a conventional filter drier can restrict flow or bypass filtration when refrigerant reverses direction. The bi-flow design accommodates both flow paths, making it the correct choice for any system with a reversing valve. Typical installation points include the liquid line near the metering device, where moisture and debris are most likely to cause metering restrictions or compressor damage.

Key Features

• Bi-flow design allows refrigerant to pass and be filtered in both directions, required for heat pump applications
• 3/8 inch sweat connection for direct copper line brazing without adapters
• Filters moisture, acid, and solid debris from the refrigerant circuit
• Protects compressors, expansion valves, and metering devices from contamination
• Suitable for residential and light commercial heat pump systems

Compatibility

Designed as an OEM-style replacement bi-flow filter drier for heat pump systems with 3/8 inch sweat liquid line connections.

Installation Notes

Installation should be performed by a licensed HVAC technician in accordance with applicable mechanical codes. Recover all refrigerant from the system before cutting or brazing any lines. Use a nitrogen purge during brazing to prevent internal oxidation and scale that could contaminate the new drier. Replace the filter drier any time the system is opened to atmosphere, after a compressor burnout, or whenever moisture or acid contamination is suspected.

Technical Specifications

• Type: Bi-Flow Filter Drier
• Connection Size: 3/8 inches Sweat

Standard Information

• Brand: CLIMATEMASTER
• Manufacturer Part Number: C36B0003N01