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using an automatic reset could allow a dangerous condition
This genuine OEM HVAC replacement part ensures millivolt and 24V circuit integrity
Ensure your fan blower wheel is balanced before installation to prevent premature bearing wear
Large Blue Display: High-contrast 6-square-inch display provides clear visibility of setpoints and system status
Trane VAL9930 EEV Valve 321894-709 using an automatic reset couldThe Trane VAL9930 Electronic Expansion Valve (EEV) is a critical metering component designed for high precision refrigerant flow control in Trane HVAC systems. Engineered for variable speed compressors and high efficiency communication systems, this stepper motor expansion valve ensures optimal evaporator superheat by adjusting refrigerant flow in real time. Unlike traditional TXVs, the VAL09930 utilizes precise digital positioning to prevent liquid