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BESF Box Ventilator

BESF box ventilators

Overview

 

Capacity m3/h
Min. Max.
BESF146-4-1 68 540
BESF160-4-1 120 970
BESF160-2-1EC 150 1,475
BESF180-4-1EC 135 1,740
BESF200-4-1EC 240 1,800
BESF225-4-1EC 265 2,520
BESF250-4-1 770 3,390
BESF250-4-1EC 275 3,240
BESF250-4-3 770 3,390
BESF280-4-3 900 3,960
BESF280-4-3EC 580 5,080

Design

BESF box ventilators are made from Aluzinc® AZ185 class C4 in accordance with EN/ISO12944-2 and insulated for sound and condensation with 30 mm mineral wool.

As standard, BESF can handle gas temperatures up to 60°C.

When used as a smoke extract fan:
BESF146-180 can as standard cope with up to 200°C for 60 min.
As standard, BESF200-280 can handle up to 300°C for 60 min.

Fan Impeller

The ventilator impeller is an F-impeller made from galvanised steel.

It has forward-curved blades, which means that the box ventilator is able to generate a high pressure for its compact size.

Spigots

The spigots on BESF have rubber gaskets to ease mounting of ducts.

 

 

Oscillation Dampers

To minimize noise and vibration, the box ventilator is fitted as standard with efficient oscillation dampers mounted on brackets.

OGSR TRANSITION PIECE

To minimise system pressure drop when connecting to a duct system, we recommend the use of an OGSR transition piece (accessory).

OGSR is a specially developed circular transition piece with integral guide panels; it can be supplied for BESF200, 225, 250 and 280 and allows maximum capacity and efficiency to be achieved.

OGSR is not available with other BESF models.

Motor Types

BESF box ventilator

BESF box ventilators have their motor connected directly to the ventilator impeller.

BESF box ventilators are available with three types of motor:

– EC motor
– single-phase motor
– 3-phase motor

The motors are made to protection class IP54 and all materials are as a minimum class F (155 °C). All motor types have integral current overload protection.


EC motor

The EC motor for BESF is a permanent-magnet motor of class IE5 (BESF25041EC: IE4) with motor control for 1 x 230 V or 3 x 400 V connection. The motor control and the motor are protected from overloading, blocking, over and under voltage, and over heating.

The motor control is factory programmed by EXHAUSTO for optimal operation of the ventilator. It only requires mains connection and a control signal from an EXHAUSTO EFC1P or MAC12 controller or a 0-10V signal.

The motor controls also provide a Modbus interface for fan control and alarm read-offs etc.


Single-phase and 3-phase motor:

Single-phase motors can be selected for BESF146/BESF160/BESF250. All motors are 4-pole with 1400 rpm, and permit direct voltage control using EXHAUSTO controllers EFC16, EFC35 and MAC12 (with MPR4 or MPR8 module).

3-phase motors can be selected for BESF250/BESF280. The motor is designed for a fixed rpm of 1400 or for frequency control (max. 50 Hz) by external frequency converter. The 3-phase motors must use external motor protection, or can be controlled by an external frequency converter (with integral motor protection) to max. 50 Hz.

Category:
Chimney
Sub-Category:
Exhaust Fans
Tags:
Exhausto

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Inquiry Product Name

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BESF Box Ventilator

BESF box ventilators

Overview

 

Capacity m3/h
Min. Max.
BESF146-4-1 68 540
BESF160-4-1 120 970
BESF160-2-1EC 150 1,475
BESF180-4-1EC 135 1,740
BESF200-4-1EC 240 1,800
BESF225-4-1EC 265 2,520
BESF250-4-1 770 3,390
BESF250-4-1EC 275 3,240
BESF250-4-3 770 3,390
BESF280-4-3 900 3,960
BESF280-4-3EC 580 5,080

Design

BESF box ventilators are made from Aluzinc® AZ185 class C4 in accordance with EN/ISO12944-2 and insulated for sound and condensation with 30 mm mineral wool.

As standard, BESF can handle gas temperatures up to 60°C.

When used as a smoke extract fan:
BESF146-180 can as standard cope with up to 200°C for 60 min.
As standard, BESF200-280 can handle up to 300°C for 60 min.

Fan Impeller

The ventilator impeller is an F-impeller made from galvanised steel.

It has forward-curved blades, which means that the box ventilator is able to generate a high pressure for its compact size.

Spigots

The spigots on BESF have rubber gaskets to ease mounting of ducts.

 

 

Oscillation Dampers

To minimize noise and vibration, the box ventilator is fitted as standard with efficient oscillation dampers mounted on brackets.

OGSR TRANSITION PIECE

To minimise system pressure drop when connecting to a duct system, we recommend the use of an OGSR transition piece (accessory).

OGSR is a specially developed circular transition piece with integral guide panels; it can be supplied for BESF200, 225, 250 and 280 and allows maximum capacity and efficiency to be achieved.

OGSR is not available with other BESF models.

Motor Types

BESF box ventilator

BESF box ventilators have their motor connected directly to the ventilator impeller.

BESF box ventilators are available with three types of motor:

– EC motor
– single-phase motor
– 3-phase motor

The motors are made to protection class IP54 and all materials are as a minimum class F (155 °C). All motor types have integral current overload protection.


EC motor

The EC motor for BESF is a permanent-magnet motor of class IE5 (BESF25041EC: IE4) with motor control for 1 x 230 V or 3 x 400 V connection. The motor control and the motor are protected from overloading, blocking, over and under voltage, and over heating.

The motor control is factory programmed by EXHAUSTO for optimal operation of the ventilator. It only requires mains connection and a control signal from an EXHAUSTO EFC1P or MAC12 controller or a 0-10V signal.

The motor controls also provide a Modbus interface for fan control and alarm read-offs etc.


Single-phase and 3-phase motor:

Single-phase motors can be selected for BESF146/BESF160/BESF250. All motors are 4-pole with 1400 rpm, and permit direct voltage control using EXHAUSTO controllers EFC16, EFC35 and MAC12 (with MPR4 or MPR8 module).

3-phase motors can be selected for BESF250/BESF280. The motor is designed for a fixed rpm of 1400 or for frequency control (max. 50 Hz) by external frequency converter. The 3-phase motors must use external motor protection, or can be controlled by an external frequency converter (with integral motor protection) to max. 50 Hz.

Category:
Chimney
Sub-Category:
Exhaust Fans
Tags:
Exhausto

Product Inquiry Form

Your Name (required)

Your Email (required)

Inquiry Product Name

Your Message