Trane VAL9929 Valve 318172-701 This model incorporates a 1/4"

This model incorporates a 1/4" compression coupling pilot tap located over the outlet and typically interfaces with a thermocouple to provide 100% shut-off of both main and pilot gas if the flame is extinguished

As the direct OEM-spec replacement for P108100A and A0408B2772

Standard 24V AC Operation: Compatible with most standard HVAC transformers and control circuits used in the field

The rugged design includes an LED diagnostic indicator for real-time troubleshooting of airflow faults

it is professional best practice to source new HVAC gaskets and manifold seals separately to ensure a gas-tight seal upon reassembly

Trane VAL9929 Valve 318172-701 This model incorporates a 1/4"The Trane VAL09929 Electronic Expansion Valve (EEV) is a critical HVAC OEM replacement part engineered for precise refrigerant flow control in high efficiency cooling systems. Unlike traditional mechanical TXVs that rely on sensing bulbs, this stepper motor driven EEV utilizes digital signals from the system controller to modulate the needle valve position. This allows for superior superheat management across varying load conditions, making it a