Navien SmartZone+ Controller Pump Control, Switching Relay for 2, 3, 4 or 6 Zones Use for any manufacturer's boiler that is installed in a multi-zone space heating application
Now it is easy to integrate any boiler into a zoned hydronic system with pumps. Use these controllers as switching relays to customize your zoned heating system. The FMZ-40 communicates between your boiler and up to six zone pumps. Your settings can improve system efficiency.
Choose from 2, 3, 4 and 6 zone controllers in the menu above.
♦ Advanced, built-in display with system status and diagnostics ♦ Compatible with boilers (using TT contacts) and pumps of all manufacturers ♦ Use multiple SmartZone+ controllers to control up to 24 zones ♦ Setting for DHW (domestic hot water) priority ♦ Purge time settings ♦ Freeze protection using an indoor temperature sensor ♦ Manual pump control ♦ Automatic air purge ♦ Advanced user modes allow you to further customize your system
These zone pump controllers are compatible with both Navien NHB Series Gas-Fired Boilers and NCB Series Combi Boilers