Heating, ventilating, and air conditioning (HVAC) equipment shall be sized and provided by Contractor. • HVAC unit size shall be two (2) 5-ton units, unless otherwise noted in Appendix A, for each control building with an efficiency rating of 13 SEER. • HVAC air duct size shall be based on Contractor’s design calculations. • The HVAC system shall be designed for maintaining an interior temperature range of 60 - 80 degrees F, taking into consideration the heat load of present and future equipment and the site conditions. • HVAC equipment shall be heat pump system with up to 25 kW electric heating (based on heat loss calculations) and consist of exterior compressor with interior air handler units, complete with supply and return grilles, lockable circuit breaker or disconnect switch, dual heat/cool control thermostat, barometric fresh air damper, and a one-inch disposable air filter, removable from the inside of the building. • The following controls shall be supplied: high-pressure controls, low pressure control, low ambient control, compressor anti-cycle relay, and alarm relay. • Condenser and evaporator coils shall be phenolic coated.
