Unitary System / Package Roof-Top Air Conditioning Unit (RTU)
Package Roof-Top Air Conditioning Unit (RTU)
An RTU transfers air via the vapor-compression cycle in a unitary system. Conditioning includes heating, filtration, humidification and dehumidification. Units are available in constant and variable airflow configurations.
Condenser Fan: The condenser fan circulates air through a condenser coil.
Condenser Fan Motor: The condenser fan motor rotates the condenser fan.
Condenser Coil: The condenser coil removes heat from a refrigerant, causing the vapor refrigerant to condense.
Controls: Safety and temperature controls help properly operate the machine.
Compressor: The compressor moves refrigerant throughout the system. It also compresses refrigerant gas to create a pressure difference between the evaporator and condenser, which enables the transfer of heat from a cooler system (chilled water) to a warmer system (condenser water).
Supply Fan: The supply fan circulates air through cooling and/or heating coils to the distribution system.
Supply Fan Motor: The supply fan motor rotates the supply fan.
Evaporator Coil: The evaporator coil transfers heat from the air to the refrigerant.
Heating Coil/Element: The heating coil transfers heat from the heating medium to the air.
Return Air Dampers: Return air dampers regulate the quantity of return air entering the unit.
Return Air Fan: The return air fan circulates return air from the building back into the unit.
Return Air Fan Motor: The return air fan motor rotates the return air fan.
Exhaust Air Dampers and Actuator: The exhaust air dampers and actuator offer outlets where air can be removed from the building.
Filters: Filters clean the air before it enters the distribution system.
Outside Air Dampers: Outside air dampers regulate the amount of outside air entering the unit.
Condenser Fan Motor: The condenser fan motor rotates the condenser fan.
Condenser Fan Motor: The condenser fan motor rotates the condenser fan.
Condenser Fan: The condenser fan circulates air through a condenser coil.
Condenser Fan: The condenser fan circulates air through a condenser coil.
Condenser Fan: The condenser fan circulates air through a condenser coil.
Condenser Fan Motor: The condenser fan motor rotates the condenser fan.