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The Reznor 63174 is a complete ventor assembly
This DPDT switching relay is engineered to withstand the high-frequency cycling common in HVACR systems
This OEM part is a direct replacement for legacy part numbers PRS20019 and PRS20019K
75" shaft is commonly found in heavier-tonnage rooftop units like the D1HG and D2CG series
Carrier HH18HA296 Limit Switch 321894-709 The Reznor 63174 is aThe Carrier HH18HA296 Limit Switch is a critical OEM replacement part engineered to maintain system integrity by monitoring discharge air or internal temperatures. This assembly serves as a high limit safety device, designed to open the electrical circuit if temperatures exceed the thermal cutout thresholdtypically calibrated around 300F for specific furnace and air handler applications. By integrating this genuine Carrier part, technicians ensure
