CAR - Constant Airflow Regulator

Automatically regulates airflows in low pressure systems

Eliminates on-site balancing of forced air heating, cooling and ventilation systems

ALDES' Constant Airflow Regulator (CAR) automatically regulates airflows in ductwork to constant levels. Operation is completely passive. No electric or pneumatic sensors or controls are needed. The CAR provides a low cost solution to balancing forced air systems for heating, air conditioning and ventilation, eliminating the need for on-site balancing. To a large degree, the CAR compensates for changes in duct pressure due to thermal stack effect, building pressure, dust clogging filters, etc. The active element of the CAR is a flexible silicone bulb which inflates and deflates in response to the static pressure difference across the control. The CAR is made for use in a temperature range of -25 degrees to 140 degrees F (-32 to 60 degrees C). It is available in 4", 5", 6", 8", and 10" diameter sizes regulating from 10 to 380 cfm (each diameter has a limited number of preset possibilities). Constant Airflow Regulators maintain airflow accurately to within 10% of rated flow (15% for units 50 cfm or less).

Typical Applications:

	Bathroom exhaust for Hotels, Motels, Nursing Homes, Dormitories, Apartment Buildings
	Pet Stores, Animal Hospitals, Chemical Storage Exhaust
	Supply or Exhaust in Nursing Homes, Dormitories, Offices
	Supply air to sleeping quarters in military facilities, submarines, etc.
	Balancing Exhaust and Supply airflows in Multi-Family, Commercial, Mid to High-rise Bldgs.
	Balancing Heat Recovery Ventilation Systems
	Balancing supply airflow from packaged roof top A/C units
	Outdoor air injection from central supply fan into individual room fan coil units, or heat pumps.
	Clean room air supply balancing to ceiling filter modules. Maintains constant airflow even as filter resistance increases.

Features:

	No electrical or pneumatic controls
	Simple installation - inserts in duct
	Simple maintenance - free design
	Simplifies design engineering and compensates for minor errors
	Automatically regulates airflows in low pressure systems

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