Specifications include, but are not limited to: A. The system shall be a 7.5 Ton HVAC roof top unit (RTU) coupled with an Energy Recovery Ventilator (ERV) suitable for the application. Specific details are as follows: 1. The ERV is intended to operate during occupied hours. The garage requires a significant amount of ventilation when occupied. The ERV is intended to provide continuous ventilation during working hours and be controlled by a time clock or occupancy sensor and remote hand-off-auto option for non-typical hours.; 2. During non-occupied hours, the ERV should bypass or become an on-demand device.; 3. The HVAC equipment must meet minimum efficiency requirements per IECC Table C403.3.2. Air Conditioners are 12.4 IEER minimum. Heating unit is 80% Minimum Efficiency.; B. The system shall be complete in all ways. It shall include a mechanical and electrical installation, all detection and control equipment, duct and fittings, auxiliary devices and controls, shutdowns, alarm interface, advisory signs, functional checkout and testing, training and any other operations necessary for a functional UL listed system.; C. The HVAC system materials and equipment shall be standard products of the supplier's latest design and suitable to perform all functions intended.; D. Systems shall be designed in accordance with the manufacturer's guidelines.; E. The current insulation is being replaced and upgraded with the Simple Saver system. The roof will have R-30 insulation, the exterior walls will have R-25 insulation, and the interior partition wall will remain with the current R-13.; F. The walkthrough doors are being replaced with metal fiberglass filled doors.; G. The mechanic’s office and parts/tool room will have its own internal wall mount HVAC unit, which is not in the scope of this project.