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SMART Relay Control


The Harsco Industrial, Patterson-Kelley SMART Relay Control is designed to maximize energy efficiency and eliminate over-temperature faults in variable primary flow heating systems.


The SMART Relay Control Panel is designed to piggy-back the ENVI cascade system and allow the boiler system to be applied in variable primary-only piping systems. The SMART Relay ensures that flow is only routed to active boilers and offline boilers are isolated from the hydronic system to minimize standby losses.


Features

  • Available for 2 boiler and 4 boiler Controllers
  • Integrates with all ENVI compatible P-K boilers
  • Fast and easy set up
  • Reduces electrical consumption as value actuators only require low wattage service
  • Slashes breakdown / fix repairs

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