Specifications include, but are not limited to: 9.1.0 Year Model New or current production model. Reconditioned, factory seconds, or damaged units will not be accepted. 9.1.1 Size / Capacity 7 1/2 Ton package unit with gas heat 9.1.2 Design For Commercial Applications 9.1.3 Annual Fuel Utilization Efficiency Rating - AFUE 90% or higher 9.1.4 Electrical Disconnect Weather-proof , 100 AMP 9.1.5 Installation Installation shall include all labor and material required to install the new unit, ceiling vents and ductwork to include insuring that all new and existing ductwork is fully insulated. 9.1.6 Controls Inspection and testing of thermostatic controls to insure compatibility and proper operation of the new system shall be part of the bid. If new controls are to be recommended or required they shall be listed as an alternate .