including the TL

When performing a York furnace repair

you must use 3 Honeywell 310143 packing cones per valve body

Can I use a universal gasket material instead

Copeland Comfort Control (White Rodgers) 90-341 Relay including the TLThe Copeland Comfort Control (White Rodgers) 90 341 Relay is a heavy duty, semi enclosed 2PDT 120V power relay engineered for reliable switching in HVACR systems, appliances, and fan control centers. As a Type 91 relay, this unit features a 120VAC coil with a 420 Ohm DC resistance and is designed for continuous duty cycles. The double pole double throw (DPDT) configuration provides two sets of power rated contacts, making it a versatile HVAC switching