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This 140-170°F automatic limit control functions as a normally closed (NC) disc-style switch
Measuring 4
fan induction terminal start-up
as a Source 1 part
Carrier HH18HA286 Temperature Switch R-22 This 140-170°F automatic limit controlAs a seasoned technician, you know that a failing Carrier HH18HA286 Temperature Switch can bring an entire commercial RTU or air handler to a standstill. This OEM temperature actuated switch is a critical safety and operational component designed to monitor thermal limits and trigger sequencing or switching relays based on precise temperature thresholds. Whether it is cycling a condenser fan for head pressure control or serving as a high limit safety
