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- Brand: Tjernlund
- The Tjernlund PS1505 Fan Prover has been designed to monitor the pressure within the fan housing only. A motor or wheel failure will decrease housing pressure and deactivate the pressure switch, thus preventing combustion.
- Simple installation|Mounting hardware furnished|Fixed set point|Voltage: 125 VA pilot duty at 24 VAC, 300 VA pilot duty at 115 to 277 VAC, 15 A non-inductive to 277 VAC|Electric switch: SPST, normally open snap acting contacts|Electric connectors: No 6-32 screw terminals with cup washer|Control set point: Non-adjustable|Operating pressure: On increasing vacuum pressure rise, 0.05 +/- 0.02 in WC with diaphragm in vertical position|Maximum pressure: 1/2 psi|Operating temperature range: -400 to 1900 deg F|Mounting position: Diaphragm vertical|Dimensions: 5 in diameter, 5-1/2 in across mounting bracket, 3 in high
- Tjernlund Fan Proving Switch, For Use With: AUTO-DRAFT Inducer, Steel, Zinc Plated, Domestic