For normally open (NO) valves

High Torque Output: Delivers consistent 60 lb-in torque for managing large damper assemblies and heavy-duty valve linkages

Intermittent Pilot Ignition: Compatible with 24V electronic control boards used in modern furnace sequences

or a high-demand chilled water system

Carrier HH18HA296 Limit Switch 319848-301 For normally open (NO) valvesThe 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