External Air Roof Equipment

Air barriers are systems of materials designed and constructed to control airflow between a conditioned space and an unconditioned space.

External air roof equipment.

There are rooftop packed units with either electric heating or gas fired heating. The purpose of these guidelines which cover curb and roof penetrations and sealings is to set forth good construction practices. Never attach roof ashing directly to a york rooftop unit. 1 300 roof ventilation ratio.

No services such as hvac distribution ducts air handlers plumbing or fire sprinkler systems should be located external to the air barrier. Displaced equipment can puncture and tear roof coverings thus allowing water to leak into the building. Today i will explain electrical wiring for different air conditioning systems types and equipment. York does not provide roof system materials required in the fl ashing of a structural member through a roof deck.

An air to air heat exchanger generally installed in a roof space recovers heat from the internal air before it is discharged to the outside and uses that heat to warm the incoming air. In order to use an antenna your television must have a built in tv tuner or you must have an external tuner connected to the antenna and television. The air barrier system is the primary air enclosure boundary that separates indoor conditioned air and outdoor unconditioned air. These are not heating systems but do reduce heat losses from the building.

Water can enter the building at displaced equipment see figure 1. York does not recommend vibration isolation be pro vided on both the fan skid inside the unit and the curb. Rooftop equipment frequently becomes detached from rooftops during hurricanes. Rooftop packaged units can be classified according to the type of heating they supply.

Roof mounted outdoor air conditioner equipment as developed and agreed upon by the air conditioning heating refrigeration institute ahri and air conditioning contractor s national association inc. Electrical wiring diagrams for air conditioning systems continued. Thus the york curb does not include a counter fl ashing receiver. You can use an over the air ota antenna to receive broadcast television from nearby tv stations.