The ZSR series is a zone pump and boiler operating control for multiple zone hydronic heating systems. The ZSR series interfaces with low voltage thermostats, or any other low voltage controllers having a switching action. The ZSR series controls up to 6 zone pumps (depending on model selected) and a primary pump. It has LED indicators to provide functional status and easy system troubleshooting.
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 Zone Pump Relay, 3 Zone, Series: ZSR, 24 VAC, 120 VAC, 50/60 Hz, LED, 11 in L x 3 in W x 9-1/4 in H