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Tjernlund Switch,Duct Pressure PS1503
Tjernlund Switch,Duct Pressure PS1503
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Tjernlund PS1503 Switch, Duct Pressure
- High Sensitivity.
- Maximum Temperature Limit of 1900 F.
- Simple Installation.
- Self-Sealing Factory Mounted Sampling Tube.
- Mounting Hardware.
Senses duct pressure via ¼” hole in duct between main blower and Duct Booster Fan. Pressure from main blower actuates switch to operate Duct Booster fan automatically. 120 Volt, 15 AMP max. Makes on pressure rise of +.05 ± .02” W.C.
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