Azel SP-85 Five Zone Switching Relay with Selec-Priority for Hydronic Radiant Floor Heating Systems

The i-Link series 5-zone hydronic radiant floor heating switching relay for pump / circulator control is operated by low voltage thermostats or any other low voltage controllers having an SPST switching action. The i-Link controller provides intermediate switching to permit up to 5 circulators and a boiler operating control in a multi-zone hydronic heating system. Intelligent Linking System (i-Link) allows unlimited zone expansion with additional i-Link controllers. Field selectable priority with timer prevents freeze-ups in the event of a priority zone failure. Unique power surge protection to avoid damage to the unit and ensure continuous control operation. The panel provides EZ screwless terminal blocks for connections to the thermostats. LED indicators on the front panel provides functional status and easy troubleshooting. In addition, a system circulator is turned on whenever any zone calls for heat. Product Features and Benefits: Front panel indicator lights. Field selectable priority. Priority timer for protection of a priority zone malfunction and prevention of freeze-ups in the heating zones. Unlimited zone expansion. Capable of turning on extra system circulator. Manual priority override(bypass) for each of the secondary zone. Isolated End Switch and Priority End Switch for Mod-Con Boiler application. Compact and modern design. Fuse protection. Power surge protection. Safety design with all electronic components hiding behind the enclosure. Simplified wiring. Contractor friendly PCB layout. High Capacity Field Replaceable Transformer. Easy-Connect Terminals/Screwless Terminals for Thermostat Connections. 24VAC transformer output with common terminal provides compatibility with electronic thermostat. Universal thermostat compatibility. 100% Factory Tested. Extended 3 year warranty.

• Hydronic Heating Switching Relay