Vents TT PRO 250 is a duct-type fan, built into a duct with a diameter of 250 mm. The fan body is made oflow-flammability polypropylene.
The fans combine the wide capabilities and high performance of axial and centrifugal fans. They are used in supply and exhaust ventilation systems that require high pressure, powerful air flow and low noise levels. Compatible with air ducts with a diameter of 250 mm.
Vents TT PRO 250 fans are an excellent choice for installation in exhaust systems of rooms with high humidity (bathrooms, kitchens), as well as for ventilation of apartments, cottages, shops, cafes, cinemas, etc. A wide range of models and a large selection of options allows you to choose a fan that meets your requirements.
Specifications
| Parameter | Value | |
| min | max | |
| Voltage, V | 230 | |
| Current frequency, Hz | 50 | |
| Power consumption, W | 125 | 177 |
| Performance, m3/h | 1110 | 1400 |
| Current, A | 0.54 | 0.79 |
| Rotation speed, min-1 | 1955 | 2440 |
| Noise level at a distance of 3 m, dB(A) | 47 | 55 |
| Maximum temperature of transported air, C | 60 | |
| Weight, kg | 8.3 | |
| Protection, class | < td style='text-align: center,' colspan='2'>IPХ4 ||
| Pipe size, mm | 250 |
Overall dimensions
| Dimensions | ?D | ? D1 | В | N | L |
| < strong>mm | 247 | 257 | 287 | 323 | 383 |
Aerodynamic characteristics diagram< /h3>
Design
Fan housings are made of high-quality and high-strength materials: ABS plastic (100 -200) and low-flammability polypropylene (250-315). The motor block with impeller and terminal box is attached to the fan housing using special snap-on clamps designed in such a way that its dismantling can be easily done without special skills and tools. This design greatly simplifies fan maintenance.
All models can be equipped with an adjustable timer with a fan shutdown delay range from 2 to 30 minutes (TT&hellip,T). For more convenient connection and use, the fan can be equipped with a power cord with a plug (TT&hellip,P).
Design features of TT PRO series fans
The inlet pipe is equipped with a manifold for smooth air entry into the fan. Thanks to the conical shape of the impeller and specially profiled blades, the circular speed of the air flow increases, providing higher pressure and performance compared to conventional axial fans.
The diffuser, specially designed impeller and straightening device at the outlet of the fan housing distribute the air flow in such a way that an optimal combination of characteristics is ensured - high performance and increased pressure with low noise levels.
Motor
The single-phase motor on rolling bearings has two speeds. For some standard sizes, an engine version with more powerful characteristics is available (TT&hellip,C). To protect against overload, the fan motors are equipped with thermal fuses. Motor protection class – IPX4.
Speed adjustment
The two-speed motor is controlled using an external speed switch (purchased separately). If it is necessary to smoothly regulate the speed, you can use a thyristor regulator RS-1-300, connecting it to the maximum speed terminal of the motor.
If stepwise speed control is required, then the P2-1-300 regulator is suitable. With its help, you can also, in addition to adjusting the fan performance, simultaneously turn the lighting on or off.
Installation
Fans can be installed at the beginning, middle and end of the air duct system. Installation at any angle relative to the fan axis is allowed. In one system, it is possible to install several fans in parallel (to increase productivity) or in series (to increase operating pressure).
The fan housing is equipped with a flat mounting plate, with which the fan is attached to the wall. Electrical connection and installation must be carried out according to the instructions and wiring diagram indicated on the terminal block. For ease of installation and connection, the mounting box can be installed in any position.
Practical guide to connecting the Vents TT fan to the power supply
Example of installation of the Vents TT fan
< img src='/image/vent/vent_tt_vanna.jpg' alt='Exhaust ventilation in the bathroom of the apartment'>
Example 1: Installing a fan in a bathroom exhaust system
Example 2: Installation of a fan as part of an office exhaust system
Example 3: Installation two fans in parallel to increase productivity in the exhaust system of a warehouse
Passport
