Z-one Relay 3 Zone Valve Control Wired Thermostat Alpine 500/600/700

Alpine 500/600/700

Item #2: SH-12 thru SH-36

1 - Universal Adapter w/backflow preventer and drain

FREEZE PROTECTION

Alpine 210B

Z-one Relay 3 Zone Valve Control Wired Thermostat Alpine 500/600/700Relay (multi zone) The ZVR series is a multi zone valve relay and boiler operating control for multiple zone hydronic heating systems. The ZVR series interfaces with low voltage thermostats or any other low voltage controllers having a switching action. The ZVR series controls up to 3, 4, 5 or 6 zones, depending on model selected. In addition, a system circulator pump and secondary pump is turned on whenever any zone calls for heat. LED indicators