Bosch 7738110112 Comfort Zone Manager, 120 VAC, 6-21/32 in H
Bosch Comfort Zone Manager, 120 V, 6-21/32 in Height, 6-11/16 in Width, 2-13/32 in Depth, 3 Zones, For Use With: Bosch Greenstar Series, Buderus GB142 and GB162 Series Boilers
CZM100 is a three zone control module that can activate circulator pumps or zone valves in one compact module. CZM100 is expandable up to three modules providing a maximum of 8 heating zones. The CZM100 utilizes standard 120V 12-2 or 14-2 AWG wire for main power and circulator pump outputs. As well as a minimum of 18-2 AWG wire or for connecting CRC user interfaces. Compatible with single, multi or variable speed circulators and 2, 3 or 4 wire zone valves.