The 176218 model is a complete assembly that includes the integrated short probe

Its mechanical simplicity ensures long-term performance in demanding residential or light commercial environments where complex digital interfaces are not required

it supports the high airflow capacities necessary for effective furnace ventilation

as the 8947 is exclusively for the 6003 series valve

Heil Quaker ICP R02R002 Limit Switch R-407A The 176218 model is aThe ICP R02R002 Auto Limit Switch is a precise OEM replacement part engineered for technical reliability in Heil Quaker and International Comfort Products (ICP) heating systems. Designed as a normally closed safety control, this component features a 7 inch insertion length to monitor internal plenum temperatures accurately. It is factory set with a 140? F open temperature and a 120? F close temperature, ensuring the system shuts down if overheating is