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S1-SPS Static Pressure Switch

S1-SPS Static Pressure Switch

Static Pressure Switch

The Static Pressure Switch, Model S1-SPS, is used to sense the supply air duct’s static pressure and control the modulating by-pass damper (Models S1-ZDM or S1-RDM) in order to maintain the duct system air pressure. When used on a zone control system, the supply air static pressure increases as various zone dampers close down. The increase in static pressure can become noisy and reduce the volume of air through the HVAC Unit, if the static overcomes the rating of the blower.

Product Description

Special Benefits

  • By-Pass Control Operation
  • Above 0.3” W.C. – Damper Opens
  • Between .20”W.C. and 0.3”W.C. – Damper Stops
  • Below 0.20” W.C. – Damper Closes

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