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VAV Terminal Units

VAV Terminal Units

ASLI VAV Terminal Units are airflow controllers designed for variable air volume systems. They regulate conditioned air into spaces based on signals from thermostats or Building Automation Systems (BAS), and can operate as stand-alone units or be integrated with LONWORKS or BACnet. Each unit includes a casing with circular inlet, rectangular outlet, fiberglass lining for noise reduction, damper blade for airflow control, and differential pressure sensor for accurate measurement. Factory-fitted with actuator, controller, and transformer, all units are tested and calibrated to ensure pressure-independent performance with stable and reliable airflow.

  • Oval shape damper for better flow management.
  • Neoprene peripheral gasket to prevent leakage.
  • Multi-point averaging inlet differential pressure sensor.
  • 1”, 2 lbs fiberglass with black matt tissue internal insulation for noise reduction.
  • Round inlet with beading for good inlet connection.
  • Hexagon shaft for better grip mounting of actuator.
  • Shaft indicator indicating damper position.
  • Tube conceal (optional).
  • Double layer heavy gauge damper blade.
  • Protective metal shroud for control components mounting.
  • Low pressure drop construction with round inlet and rectangular outlet- static regain.
  • Can be used for Constant Air Volume (CAV) application.
  • Rectangular discharge opening with slip and drive cleat duct connection.
  • Optional internal perforated sheet or aluminum foil facing.
  • Reheat coil available upon request.
Material

Casing : 0.7 mm thickness galvanized steel.
Damper blade : Double layer 0.7 mm thickness galvanized steel with a sandwiched peripheral gasket.
Internal insulation : 25mm (1”) 32 kg/m³ (2 lb) density fiber glass with matt black tissue facing.
Bearing : Engineering plastic.
Hexagon shaft : Hexagon bar mild steel
Differential pressure sensor : Aluminum.

Air Control Volume Type
Variable Air Volume (VAV) Pressure Dependent Control

  • Without differential pressure sensor.
  • Pressure dependent.
  • No monitoring of air volume.

Variable Air Volume (VAV)
Pressure Independent Control

  • With differential pressure sensor.
  • Pressure independent.
  • Air volume varies depending on design flow and signal by controller.
  • Air volume could be monitored.

Constant Air Volume (CAV)

  • With differential pressure sensor.
  • Pressure independent.
  • Air volume is constant (design flow) provided that the minimum static pressure is achieved.
  • Air volume could be monitored.

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CONTACT US

OFFICE
Asli Mechanical Sdn. Bhd.
No 2, Jalan Kenari 10,
Bandar Puchong Jaya,
47100 Puchong, Selangor
FACTORY
Lot 20, Rawang Industrial & Housing Estate,
48000 Rawang, Selangor Darul Ehsan,
Malaysia
Tel: +603-8075 4933
Fax: +603-8075 4911

Email: esales@aslidiffuser.com.my

ABOUT US

ASLI Mechanical Sdn. Bhd. began manufacturing grilles and diffusers in 1972 and having gained over 30 years experience, is recognised as one of the Malaysia leading manufacturers of flexible air duct, ceiling diffusers, supply air grilles, return air grilles, louvers, jet diffusers, floor diffusers, dampers, damper actuators, VAV terminal units and silencer.

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