Mixed-type duct fans with EC motors in casings with noise and heat insulation. Air flow up to 1.970 m³/h.

APPLICATION

• The new TT Silent-M EC duct fan series is provided with a special noise-insulated casing which ensures silent operation and excellent aerodynamic characteristics.
• Compatible with Ø100 up to Ø315 mm air ducts.
• The TT Silent-M EC fans combine the versatility and outstanding performance of both axial and centrifugal fans producing a powerful air flow and high pressure while retaining the signature energy-efficiency and response of EC motors.
• Several fans can be integrated into a single computer-controlled system with sensor feedback combined with speed control across the entire dynamic range.
• Application: Combined supply and exhaust ventilation systems of various commercial and industrial spaces with stringent noise requirements (such as libraries, conference halls, classrooms, kindergarten playrooms etc.).

DESIGN

• The external casing is made of steel with a polymer coating.
• The internal casing perforations conduct sound waves and direct them at the noise-absorbing material at a specific angle.
• Noise and heat insulation is ensured by a mineral wool layer 50 mm in thickness.
• Wideband noise control is achieved by means of special casing perforation and the use of noise-absorbing material.
• The inner casing and the impeller are made of durable high-quality plastic.
• Conical impellers with specially profiled blades help boost angular velocity of the air flow resulting in higher pressure and air capacity compared to the conventional designs.
• The combination of a diffuser, a specially designed impeller and flow straightener vanes at the fan outlet allow for an optimum flow distribution to achieve high capacity and increased air pressure without generating excessive noise.
• The fan casing is equipped with an external water-tight terminal box for electrical connections.

MOTOR

• The fans feature high-efficiency electronically commutated (EC) direct current motors.
• These state-of-the-art units offer excellent energy efficiency.
• EC motors combine high performance and optimum control across the entire speed range.
• The performance efficiency of the electronically commutated motors reaches 90 %.