Siena ZSI-E30CS, ZSI-E36CS Ref # Part # Description 1 54110050 Duct Cover Wall Bracket 1 2 50050145 Upper Duct Cover 1 3 50050146 Lower Duct Cover 1 4 54050078 8 Inch Round Duct Collar 1 5 11030174 Electrical Cord 1 6 54060011 Rectangular Duct Collar 1 8 54140319 Switch Bracket 1 9 11000167 Switch Assembly 1 10 12120070 Blower 1 11 54210011 Wiring Cover 1 12 54210012 Wiring Cover 1 13 56240022 Control Board Spacer 4 14 11010150 Control Board 1 15 120