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. The item "AZEL 4 ZONE SWITCHING RELAY (PUMP CONTROL) FOR HYDRONIC RADAINT HEATING" is in sale since Monday, April 15, 2019. This item is in the category "Business & Industrial\HVAC & Refrigeration\HVAC & Refrigeration\ Parts & Accessories\HVAC & Refrigeration\ Controls & Circuit Boards". The seller is "radiantcontrols" and is located in Ontario. This item can be shipped to United States, Canada.