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It includes the top and bottom valves and the chain mechanism
For specialized Nordyne HVAC equipment
it is backward compatible with single-stage equipment by configuring the installer setup accordingly
cross-reference your parts manual with MPN 97575 for exact verification
Carrier HH19ZA145 Limit Switch 319852-301 It includes the top andThe Carrier HH19ZA145 Limit Switch is a critical safety component designed for precise thermal monitoring in HVAC furnace systems and packaged units. As a high performance OEM replacement limit switch, this disc style sensor features a normally closed circuit that provides essential protection against heat exchanger overheating. Engineered to open at 145F and close at 105F, this automatic reset limit switch ensures your heating equipment stays within
