Caleffi ZSR106 - Z-one™ Relay (six zone)
MULTI-ZONE PUMP CONTROL.
The ZSR106 is a multi-zone pump and boiler operating control for multiple zone hydronic heating or cooling systems. The ZSR106 interfaces with low voltage thermostats, or any other low voltage controllers having a switching action. The ZSR106 controls up to 6 heating circulator pumps, a primary pump and has LED indicators to provide functional status and easy system troubleshooting.