Heatcraft 29311808 Expansion Valve 1/3 Ton 3/8x1/2 Odf

Product Description

The HEATCRAFT 29311808 is a thermostatic expansion valve (TXV) designed for use in commercial refrigeration and cooling systems. The TXV meters refrigerant flow into the evaporator coil, maintaining the correct superheat level to protect the compressor and ensure efficient system operation. Rated for 1/3-ton capacity, this valve features 3/8-inch inlet and 1/2-inch outlet ODF (outside diameter flare) connections. It is a factory Heatcraft replacement part intended for installation by licensed refrigeration technicians and HVAC-R mechanics working on Heatcraft commercial appliance systems.

This expansion valve is suited for light-commercial and commercial refrigeration applications. It is typically found in small evaporator coil assemblies within walk-in coolers, reach-in cases, or similar Heatcraft commercial refrigeration equipment. The 1/3-ton capacity rating and ODF connection sizing are key selection criteria when specifying a replacement for existing Heatcraft unit cooler or evaporator coil assemblies.

Key Features

• 1/3-ton capacity rating for light-commercial refrigeration applications
• 3/8-inch inlet ODF x 1/2-inch outlet ODF connections for direct brazed installation
• OEM Heatcraft replacement part for accurate fitment and performance
• Meters refrigerant flow to maintain proper evaporator superheat
• Compatible with Heatcraft commercial appliance evaporator and unit cooler assemblies

Compatibility

Designed as an OEM-style replacement TXV for Heatcraft commercial appliance and refrigeration equipment. Refer to Heatcraft service documentation and the original equipment bill of materials to confirm fitment before installation.

Installation Notes

Installation should be performed by a licensed HVAC-R technician or refrigeration mechanic. Recover all system refrigerant and relieve system pressure before removing the existing valve. Braze ODF connections using appropriate silver-alloy brazing rod with nitrogen purge to prevent internal oxidation. Leak-test and recharge the system to manufacturer specifications after valve replacement.

Technical Specifications

• Capacity: 1/3 ton
• Inlet Connection: 3/8 inches ODF
• Outlet Connection: 1/2 inches ODF
• Connection Type: ODF (braze)
• Valve Type: Thermostatic Expansion Valve (TXV)

Standard Information

• Brand: HEATCRAFT
• Manufacturer Part Number: 29311808