O.S.A. generally requires perimeter chassis. The number of axles is determined by the weight of the unit, based on a 6,000 lb. per axle capacity. Our standard air conditioning system is a wall mounted unit. Ducted return air is available on request. Fiberglass ducting is also available.
Tonnage refers to both heating and cooling capacity.
Roof mounted units are also available on request. We must again caution the dealer to consider climate conditions for special heating or cooling needs along with the local building department code requirements. Some area codes require the added protection of rigid aluminum or steel conduit. These panels do not have main breaker protection. The load requirements are calculated on a per floor basis and a sub-panel is installed on the exterior of each unit.