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 provide functional status and easy system troubleshooting. The ZVR series is a perfect match with Caleffi's Z-one motorized zone valves.
ZSR Z-one Relay
The ZSR series is a multi-zone pump and boiler operating control for multiple zone hydronic heating/cooling systems.
Interfaces with low voltage thermostats
Controls up to 6 heating circulator pumps
LED indicators for system status/ troubleshooting
Switches on primary pump system circulator whenever any zone calls for heat
120 VAC, 50/60 Hz
3-Year limited warranty when installed with Caleffi zone valves
Caleffi Z-one Multi-Zone Pump Switching Relay, Series: ZSR, 6 Zones, 120 VAC, For Use With: Pump and Boiler, 9-1/4 in Height, 11 in Width, 3 in D