Up to five SmartZone-4X controllers can be connected together for systems with more than 4 zones.

(Quantity)
(3) SmartZone-4X = 12 ZONES
(4) SmartZone-4X = 16 ZONES
(5) SmartZone-4X = 20 ZONES

● Independent zone fan control ● no dual fuel kit required ● control emergency heat from zone 1 thermostat ● optional supply temp sensor ● eco mode allows setback from just one zone ● built-in fresh air control & economizer ● Lock-out 2nd stage when only one zone calling ● adjust staging & cut-out limits to maximize comfort or efficiency ● delay fan for gas heat application ● LEDs show damper status, thermostat calls & equipment mode ● simple setup with dip switches & push buttons ● Easy to read terminals ● screwless wiring ● optional temp sensor for better staging & protection ● expandable up to 20 zones using SmartLINK communication port ● best value 4 zone!