TROX VFC-160-D2-E01 – 6 inch Galvanized Constant Volume Controller For Low AirFlow with 24 V AC/DC, 3-point (min/max), potentiometer

FOR LOW AIRFLOW VELOCITIES

Application

• Circular CAV controllers of Type VFC for the precise supply air or extract air flow control in constant air volume systems
• Mechanical self-powered volume flow control without external power supply
• For low airflow velocities
• Simplified project handling with orders based on nominal size

Special features

• Volume flow rate can be set using an external scale; no tools required
• Simple retrofit of an actuator is possible
• Correct operation even under unfavorable upstream or downstream conditions (1.5 D straight section required upstream)
• Any installation orientation
• Aerodynamic function testing of each unit on a special test rig prior to shipping

Parts and characteristics

• Ready-to-commission controller
• Damper blade with low-friction bearings
• Bellows that acts as an oscillation damper
• Leaf spring
• Rotary knob with pointer for setting the volume flow rate
• Lip seal

Attachments

• Min/Max actuator: Actuator for switching between minimum and maximum volume flow rate setpoint values

Useful additions

• Secondary silencer Type CA or CF
• Heat exchanger Type WL
• Electric air heater Type EL

Construction features

• Circular casing
• Spigot with lip seal, for circular connecting ducts to EN 1506 or EN 13180
• Damper blade with low-friction bearings and special bellows

Materials and surfaces

• Casing made of galvanized sheet steel
• Damper blade and other parts made of high-quality plastic, to UL 94, V1; to DIN 4102, material classification B2
• Leaf spring made of stainless steel
• Polyurethane bellows

Standards and guidelines

• Hygiene conforms to VDI 6022
• Casing air leakage to EN 1751, class C

Maintenance

• Maintenance-free as construction and materials are not subject to wear

E01 Actuator 224-024-03-001 for min/max switching

• Min/Max switching between volume flow setpoint values of mechanical self-powered CAV controllers the types VFC and EN (only up to 300 mm)
• Min/Max change of the damper blade positions of flow adjustment dampers Type VFR

Parts and characteristics

• Supply voltage 24 V AC/DC
• 1-wire control or 2-wire control (3-point)
• Potentiometer for setting the volume flow rate setpoints
• Positive lock connection with damper blade shaft
• Functional test button: Motor drives first to minimum position, then to maximum position, then returns to the set position
• Indicator light: Actuator has reached setpoint, actuator in motion, actuator blocked

Commissioning

• Use the potentiometer to set the minimum or maximum volume flow rate or the damper blade position

• Model VFC Product Brochure
• Model VFC IOM
• E01 Actuator Product Brochure