When you are performing a Reznor heater repair

allowing for 0(2)-10 VDC

1 Cv rating minimizes pressure drop across the valve

Since it is mercury-free

it provides the exact resistance values and switching points required by the control board to prevent short-cycling and unnecessary auxiliary heat engagement

Carrier EF17BZ113 Reversing Valve THPU32HP7Y When you are performing aThe Carrier EF17BZ113 Reversing Valve is a critical 4 way heat pump component engineered for precise refrigerant flow reversal in residential and light commercial HVAC systems. This 24V reversing valve features a 1 2" suction and 5 8" discharge configuration, ensuring optimal pressure drop characteristics and thermal efficiency during cycle transitions. As the direct EF17BZ113 replacement for EF17BZ115, this valve maintains OEM specifications for