RHEEM 175817 Furnace Parts Product

Expansion Valve (TXV)

The expansion valve (TXV) replaces the capillary orifice on electronic air-cooled furnaces. The TXV measures gas pressure and during cooling, delivers a controlled amount of refrigerant to the evaporator to control temperature. The control coil in the capillary tube is replaced with the TXV, eliminating the need for an adjustable expansion valve.

The Rheem 175817 furnace parts TXV valve is a reliable, durable part that will last for years. This product features a triple-check safety valve and needle seat for better home comfort. If you are looking for a new high quality part for your heating system, then this is the unit for you!

The Expansion Valve is a major component to the Frost Control system, and regulates the refrigerant flow when the refrigerant pressure drops during an operating cycle

Clean, efficient air flow from the heater to your home is essential. This is why Rheem uses a thermostatic expansion valve in all its high efficiency heaters- it prevents throttling of combustion air that can rob you of energy efficiency and shorten the lifespan of other heating components in your system.

The TXV controls the amount of gas entering the burner. This piece is made to fit the Rheem model 175817 furnace, but may also fit other brands and models

The expansion valve is an important safety device, preventing the sliding of the refrigerant into a low pressure state of being. This contributes to the cooling function throughout the system by causing a drop in temperature as it flows through.

The expansion valve allows for the correct refrigerant flow into the evaporator coil. If the expansion valve fails to close properly, refrigerant will flow back into the compressor after it has expanded in the evaporator coil. This will lead to improper performance and possibly failure of other components in the system.