Does the OROA-5 require a check valve for installation

This integrated solution provides the precise low-voltage control required to protect your heat exchanger and maintain systemic efficiency

Advanced Diagnostics: Features an onboard LED flash code system to quickly identify ignition lockout

Durable SPST Logic: Features a high-integrity Single Pole Single Throw configuration for reliable circuit interruption under high-limit conditions

Smith 100208231 and Lochinvar FUS2003

Trane VAL8718 TXV 322027-701 Does the OROA-5 require aPrecision refrigerant metering is the backbone of system efficiency, and the Trane VAL8718 is engineered to maintain that balance in demanding 4 Ton HVAC systems. As an OEM Trane expansion valve, this thermostatic expansion valve (TXV) is designed specifically for R410A refrigerant applications, ensuring the evaporator coil receives the exact mass flow required to manage superheat effectively. With a 3 8" x 1 2" sweat connection, this valve provides a