3-Zone Commercial Expansion Panel

3-Zone Commercial Expansion Panel, Zones: Three Zones. Up To Three Iwd3X Expansion Panel Can Be Used With The Iwd3P Zoning Panel, Compatible Thermostats: Use Any 24Vac, Battery Powered Or Power Sharing Thermostat, Compatible Dampers: Use 24Vac Crda250M Modulating Dampers, Eliminate Bypass:
Use Modulating Dampers That Open Non-Calling Zone Dampers Just Enough To Maintain Allowable Duct Pressure, Connection: Connects To The Iwd3P Zoning Panel Ot Another Iwd3X Expansion Panel Using A 10-Conductor Ribbon Cable Provided,Power: 20 To 30Vac, 10Va Not Including Damper Power Requirements. Use 40-100Va, 24Vac, 60Hz Transformer, Nec Class 2,Dims: 9-5/8"H X 7-1/2"W X 1-5/8"D,Weight:1.6Lbs,In Mfg Box,Made in USA