Carrier HH18HV160 Limit Switch 320074-702 often caused by internal debris

often caused by internal debris or orifice erosion

it automatically restores power to the burner once the water level returns to a safe operating point

a Belimo AF or NF series actuator should be specified

This spring-actuated valve features a 316 stainless steel investment cast body (ASTM A351-CF8M) and a durable RPTFE ball check for superior chemical resistance and tight shutoff

With a 1-inch bore (1" square pillow block grid compatibility)

Carrier HH18HV160 Limit Switch 320074-702 often caused by internal debrisThe Carrier HH18HV160 Limit Switch is a critical safety component engineered for precise thermal management in residential and commercial furnaces. This OEM Carrier replacement part functions as a high limit safety cut out, specifically calibrated to a 157 160F temperature range to prevent heat exchanger damage and hazardous overheating conditions. Utilizing a highly responsive bimetallic sensor, this auto reset limit switch automatically opens the