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The spring range is fixed at 5-10 PSI
Precise Thermal Cutout: The adjustable 140-240°F range allows for fine-tuning based on specific system demand and ambient conditions
extending the service life of the 1650 RPM blower motor in challenging environments
providing the same 1/2" x 1/2" connection and electrical requirements
it should read approximately 1
Carrier HH18HA276 Limit Switch R-410A The spring range is fixedThe Carrier HH18HA276 Limit Switch is a critical safety component designed for high temperature monitoring within HVAC furnace and air handler assemblies. This automatic reset limit switch features a cut out temperature range of 225F to 275F, ensuring the system shuts down if heat exchanger temperatures exceed safe operating limits. As a genuine OEM Carrier replacement part, this switch provides the exact electrical specifications and mounting