Tjernlund Products 950-1030 Fan Prover 320788-702 System Longevity: Minimizes mechanical stress

System Longevity: Minimizes mechanical stress and ignition cycles by preventing frequent on/off staging of the burner

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Its rugged construction avoids the common chatter associated with swing checks

No piping modifications are required for the swap

3 Amps draw ensure precise compatibility with Heil

Tjernlund Products 950-1030 Fan Prover 320788-702 System Longevity: Minimizes mechanical stressThe Tjernlund 950 1030 Fan Prover is a critical safety component designed for sidewall power venter applications. Engineered to ensure proper drafting and vent operation, this pressure switch kit monitors the pressure differential produced by the blower and allows the burner to fire only when safe airflow is established. This kit is a direct OEM replacement part for several high demand units, including the Tjernlund HS1, HSJ, and HSUL series. Included