The ZSR101 single zone switching relay is operated by low voltage thermostats. The ZSR101 single zone switching relay incorporates Power In, Relay 1 and Relay 2 connection terminals to provide a convenient and cost effective way to control a circulator and a boiler operating control in a single zone hydronic heating system. The ZSR101 single zone switching relay saves hours in installation time and provides a clean and professional installation.
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, Single Zone, Series: ZSR, 24 VAC, 120 VAC, 50/60 Hz, 4-5/8 in L x 2-5/8 in W x 5-3/8 in H