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Key Benefits Precise Thermal Call: Calibrated with a 190°F open and 160°F close range for optimal system protection
ensuring that the root cause of overheating—such as a failed blower motor or a severely clogged furnace filter—is addressed
Can I use a universal sequencer instead
low-resistance connections during field installation
Carrier HH12ZB200 Limit Switch Key Benefits Precise Thermal Call:The Carrier HH12ZB200 Limit Switch is a critical OEM replacement part engineered for precise thermal protection in residential and light commercial furnaces. This auto reset limit switch features a 3 inch insertion depth and is factory calibrated for an L200 40 configuration, meaning it opens on a temperature rise at 200F and automatically closes once the system cools to 160F. As a furnace high limit thermostat, it prevents internal heat exchanger