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The i-Link series multi-zone circulator pump switching relays simplify wiring for hydronic heating ( radiant floor heating ) systems. With leading edge features and superior product design, i-Link makes installation quick and easy.

Available in one to six zone models. The i-Link series are designed with flexibility and multi-zone applications in mind. It is so flexible that different models can be interconnected for unlimited zone expansion. In addition, i-Link provides far more functional status than other models on the market today because of their front panel LED indicators that provide the easy system diagnostics demanded by today's installers. Each unit is designed with a unique power surge protection to ensure continuous control operation and avoid damage and trouble to replace the unit.

Priority Protection timer available in two to six zone models prevents freeze-ups in the event of a priority zone failure. SP-84, SP-85, SP-86 are equipped with field selectable priority by-pass function to ensure continuous operation of secondary zones which allow maximum flexibility for system applications.

From design to manufacture, each i-Link unit is built on the foundations of quality and reliability. Azel products are quality controlled in order to achieve total customer satisfaction - a foundation that you can rely on.

  • Front panel indicator lights
  • Fuse protection
  • Power surge protection
  • Easy-Connect Terminals/Screwless Terminals for Thermostat Connections
  • Compact and modern design
  • Safety design with all electronic components hiding behind the enclosure
  • Simplified wiring
  • Universal Design: Cold Start or Tankless Coil Boiler
  • Contractor friendly PCB layout
  • High Capacity Field Replaceable Transformer
  • 24VAC transformer output with common terminal provides compatibility with electronic thermostat
  • Universal thermostat compatibility
  • 100% Factory Tested
  • Extended 3 year warranty
  • Unlimited zone expansion
  • Priority timer for protection of a priority zone malfunction and prevention of freeze-ups in the heating zones
  • Field selectable priority
  • Capable of turning on an extra system circulator
  • SP-84/85/86: Manual priority override (bypass) for each of the secondary zone
  • Isolated End Switch and Priority End Switch for utilizing full functionality of high efficiency Mod-Con boilers
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Manuals (2)
Product Type:
Extended 3 Year
Surge Protection
Fuse Protection
Power Supply:
120 VAC
Enclosure Type:
Flame Retardant Plastic
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