ClimateMaster 33B0002N07 TXV 320074-702 Always use a clean cloth

Always use a clean cloth or gloves and wipe the bulb with an alcohol swab before sliding it into the UV-Aire purification system

The Trane BRD4785 (also identified as the UC210 Printed Circuit Board) is a critical OEM replacement component designed for high-level communication and control within Trane HVAC systems

providing clear visual feedback on stem travel and system status

Direct OEM Compatibility: Verified as an identical replacement for 89M9301 and 100335-28

As an OEM 1/2 HP ECM motor

ClimateMaster 33B0002N07 TXV 320074-702 Always use a clean clothThe ClimateMaster 33B0002N07 TXV is a critical 1 2" x 1 2" thermostatic expansion valve designed specifically for high efficiency water source heat pumps and geothermal systems. As a veteran technician knows, maintaining precise refrigerant flow control is essential for protecting the compressor and ensuring the evaporator coil operates at peak thermal efficiency. This OEM ClimateMaster expansion valve utilizes a dual port balanced design with an