Single Or Multi Stage Heat/Cool Or Heat Pump Control Panel For Zoned Systems

Single -Stage And Multi-Stage Heat/Cool Or Heat Pump Control Panel For Zoned Systems, Volts:20 To 30, Zones: Up To Four Zones And Is Not Expandable, Thermostat: Does Require A Special Aprilaire Thermostat (Series 8570 Not Included), Features Include: Easy 4 Wire Installation,Self Diagnostic, Automatic Recognition When Thermostat Is Hooked Up, And Will Signal If Any Options Between The Control Panel And Thermostat Dont Match Automaticaly, Requires: Plenum Sensor For Temperature Control (Model 8052 Not Included), Dims: 9-1/2"H X 12"W X 2"D, Weight:2 Lb 8 Oz, In Mfg Box, Origin: Usa