Tjernlund Products 950-0650 Fan Prover Kit 318172-701 Rugged Reliability: Features proven sensing

Rugged Reliability: Features proven sensing elements and a bellows design capable of withstanding up to 425 psig maximum pressure

Field Adjustability: Allows for fine-tuning of the starting point and operating span to match specific HVAC sequencing logic

Standardized Installation: Features standard spade terminals and pressure ports for rapid field installation during emergency HVAC repair

this unit is favored by technicians for its internal pilot-operated diaphragm

Whether you are performing a routine maintenance swap or responding to an emergency call where a snapped blade has caused excessive vibration

Tjernlund Products 950-0650 Fan Prover Kit 318172-701 Rugged Reliability: Features proven sensingThe Tjernlund Products 950 0650 Fan Prover Kit is a critical safety component designed specifically for integration with the SS1 Power Venter. As a direct OEM replacement part, this kit ensures the pressure switch accurately monitors the vent system performance, preventing burner operation if the draft is insufficient. This kit replaces the older 899 0500 model and is engineered to detect precise changes in static pressure within the fan housing.