For veteran contractors managing on-site damper retrofits

the kit typically includes the pressure switch

an "OL" reading indicates a failed

Orange: Retract)

also identified as part number LB-90973A

Trane VAL8216 Reversing Valve THPU32HP7Y For veteran contractors managing on-siteThe Trane VAL8216 Reversing Valve is a critical 4 way direction control component designed for high performance heat pump systems. Featuring 5 8 inch discharge and 7 8 inch suction connections, this valve is engineered to manage the refrigerant flow reversal required to switch between heating and cooling cycles. This heavy duty brass valve is a direct replacement for the VAL8215, ensuring a precise fit in American Standard and Trane outdoor condensing