ClimateMaster 33B0043N04 Thermostatic Expansion Valve 2 Ton 15% Bleed

The ClimateMaster 33B0043N04 is a thermostatic expansion valve (TXV) designed specifically for 2-ton geothermal heat pump systems. This precision refrigerant metering device controls the flow of liquid refrigerant entering the evaporator, regulating superheat to ensure optimal system performance and compressor protection.

Key Specifications:

• Capacity: 2 ton nominal
• Connection Size: 3/8" x 3/8" ODF (flare connections)
• Bleed Port: 15% permanent bleed design
• Capillary Length: 30 inches
• Application: ClimateMaster geothermal/water source heat pumps

Features and Benefits:

• 15% bleed port design allows for pressure equalization during off-cycles, reducing compressor starting torque requirements
• Maintains consistent evaporator superheat for reliable system operation
• 30-inch capillary tube provides flexible mounting options for remote bulb placement
• ODF flare connections ensure leak-free installation
• OEM replacement part engineered specifically for ClimateMaster systems

This genuine ClimateMaster replacement TXV is essential for maintaining proper refrigerant flow control in geothermal heat pump applications. The permanent bleed port allows small amounts of refrigerant to pass during compressor operation, facilitating system pressure equalization and reducing wear on low-starting-torque compressors commonly used in residential geothermal systems.