Diversitech TXVFE-3-410A-KIT Universal Txv Kit 3 Tons R-410A

Product Description

The DIVERSITECH TXVFE-3-410A-KIT is a universal thermostatic expansion valve (TXV) kit from the RFGF Series, rated at 3 tons nominal capacity and compatible with both R-410A and R-22 refrigerants. The valve regulates refrigerant flow into the evaporator coil and controls superheat to maintain efficient system operation. A built-in internal check valve makes the valve suitable for both straight cooling and heat pump systems. The external equalizer design and balanced port charge allow field-adjustable superheat settings. The kit includes Aeroquip and Chatleff adapters alongside a standard ODF sweat outlet connection, giving the technician multiple termination options at a single evaporator.

This TXV kit is intended for use in residential and light commercial split-system air conditioning and heat pump applications. It is a service and retrofit-focused kit designed for HVAC technicians replacing failed or undersized expansion valves on evaporator coils with a 3-ton nominal load. The 3/8-inch ODF inlet and 1/2-inch ODF sweat outlet fit common evaporator coil configurations. The included Aeroquip and Chatleff adapters extend compatibility to coils equipped with quick-connect or Chatleff-style fittings, eliminating the need to source adapters separately. The 60-inch capillary tube provides adequate reach for most coil and bulb-mounting arrangements.

Key Features

• Universal RFGF Series TXV rated at 3 tons nominal capacity
• Compatible with R-410A and R-22 refrigerants in a single valve body
• Internal check valve enables use in both air conditioning and heat pump applications
• External equalizer with balanced port charge for accurate, field-adjustable superheat control
• Kit includes ODF sweat, Aeroquip, and Chatleff outlet adapters for installation flexibility
• 60-inch capillary tube accommodates a wide range of bulb-mounting locations

Compatibility

Suitable for use with R-410A air conditioning and heat pump systems requiring a 3-ton TXV with external equalizer. Compatible with evaporator coils using ODF sweat, Aeroquip, or Chatleff outlet connections.

Installation Notes

Installation should be performed by an EPA Section 608 certified HVAC technician. Recover all system refrigerant before opening the refrigerant circuit and follow all applicable local mechanical codes. Mount the sensing bulb firmly to the suction line in the manufacturer-recommended orientation and insulate it thoroughly to ensure accurate superheat sensing. After installation, verify superheat at the suction line before recharging to the system design target.