This 50VA boiler transformer provides a stable 24VAC secondary output

allowing a specific percentage of air to bypass the zone

the HK52ER158 provides the reliability contractors depend on to reduce callbacks and ensure the primary drive system operates at peak thermodynamic efficiency

coil any excess capillary away from heating elements and sharp edges

While it supports LBP (Low Back Pressure)

York S1-SV-168770 Expansion Valve 320735-701 This 50VA boiler transformer providesEnsure precise refrigerant metering with the York S1 SV 168770 Expansion Valve, a critical OEM component designed for high performance HVACR systems. This thermal expansion valve (TXV) utilizes balance port technology to maintain optimal superheat across varying load conditions, preventing liquid slugging and ensuring compressor longevity. Featuring 5x7x2 ODF (Outer Diameter Flare) connections and a 5 foot capillary tube, the S1 SV 168770 is