Hydronic Pump Stations to choose from

HPS "SERIES 900N" Zone Control Stations  "NEW"       "Series 900N" Installation Instructions

"PSS-N" - Primary/Secondary Stations - (Small Condensing Boiler Applications)

900N Series "PSS-N" MODELS can be customized to meet select design specifications by referring to

click on image to enlarge







  • Consist of a pre-piped primary loop and the choice of
    1 or 2 secondary zones
  • Left or right side supply and return to a condensing boiler
  • 27" x 25" x 8.5" box for wall mount
  • White Powder Coat Appliance Finish
  • Organic Acid Bath Polished Copper Piping
  • One secondary zone models (PSS-1LN & PSS-1RN) come with a standard 2 Zone Electronic Relay Control Board which supplies one temperature
  • Two secondary zone models (PSS-2LN & PSS-2RN) come with an Electronic Relay Control Board which allows each zone to be set, supplying either high or low temperature output from the condensing boiler
  • All field settings can be adjusted using jumpers
  • Pump Duty Cycle Timer Options
  • LED Indicator Lights
  • 3/4" & 1" Flange Body Pumps Grundfos "UPS15-58FC" Standard - Can be upgraded to UPS26-99FC/BFC,
    UPS15-55SFC or Alpha 15-55F pumps
  • Pump Isolator Ball Valves
  • System Purge Valve
  • Return Zone Ball Valves
  • Integral Pump Flow Check Valves
  • Tridicator
  • Air Eliminator


Click on text for Schematic Diagram

HP900100L-N (PSS-1LN) 1 Secondary Zone (Left Side Boiler)

HP900100R-N (PSS-1RN) 1 Secondary Zone (Right Side Boiler)

HP900200L-N (PSS-2LN) 2 Secondary Zones (Left Side Boiler)

HP900200R-N (PSS-2RN) 2 Secondary Zones (Right Side Boiler)