Description
The SC-Z20 is a modulating zone control system that allows a single HVAC unit to have up to 20 individual zones. The SC-Z20 works with single-stage, multi-stage and heat pump systems. Each zone is controlled by its own proprietary SC-Z20-T space thermostat and a ZD Series 3-wire zone damper or VD Series diffuser. It has an auxiliary heat control option for each zone. SD Series dampers can be paralleled for zones requiring multiple dampers. The SC-Z20 is an affordable alternative to higher cost VAV systems with minimal programming required.
