This assembly is the primary driver for moving heated water through the heat exchanger

Because pressure settings are highly sensitive

Engineered to maintain a gas-tight seal under varying thermal loads

This encapsulated pressure switch features SPST (Single-Pole Single-Throw) switch action configured to Open Low

corroded blades

Trane VAL8700 TXV 318820-201 This assembly is the primaryThe Trane VAL8700 is a high precision 2 Ton Thermal Expansion Valve (TXV) engineered for reliable refrigerant metering in split systems and heat pumps. This OEM Trane expansion valve is a critical component for maintaining the superheat balance of the evaporator coil, ensuring the R410A refrigerant flow is precisely adjusted based on load demand. Featuring a balanced port design, the VAL8700 provides stable control across varying ambient conditions,