Version V-6.1 © Ventur tekniska ab 2010
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Assembly-, Operation- and Maintenance Instructions, EC-declaration
Centrifugal Fans Type MPT/MPB
The manual should always be available for the operating personnel. The instructions should be carefully read
before installation and operation of the fan. If strict notice is taken of these instructions, the fans run with trouble-
free operating for years.
With reservation for the right to make alterations. If doubtful, get in touch with the manufacturer.
Table of contents
A
Technical
data
B
Warranty
C
Safety
D
Installation
E
Start of operation
F
Maintenance
G
Spare parts list
H
Manufacturer
declaration
A Technical
Data
Following data is for the fan in its basic form, however, delivered fan can differ from the basic form. See the
markings or the text “Special execution”. Fans type MPT/MPB have casing of cast aluminium, MPT has impeller of
paddle type of cast aluminium and MPB impeller of sheet steel with backward curved blades. Fan MPT is suitable
for dust- and material conveying and MPB for clean gas.
The temperature of the conveyed medium may not exceed 80°C. It is not permitted to use the fan in surroundings
where the temperature exceeds 40°C or goes below -25°C. Conveying of explosive gases is not permitted. It is not
permitted to rebuild or in any other way modify the fan. Special features that can be used in other surroundings
than above can be offered on request and clarification with the manufacturer.
Rating plate
tekniska AB
Göteborg Stockholm Sweden
Fan type: IP:
Mot type: kW
V
∆
/Y Hz A
cos
Φ
: Isol.-Cl. rpm
No: Art.nr:
When connecting, maintenance or ordering of spare parts, pay attention to data on the mark sign in first instance.
Special execution
Temperature barrier, EEx motors, housing and impeller in other materials, can be delivered on request and after
clarification with the manufacturer.
B Warranty
Warranty is valid in accordance with General Conditions Orgalime S2000 and only if these instructions are strictly
adhered to.
Version V-6.1 © Ventur tekniska ab 2010
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C Safety
Following safety instructions must be carefully followed with regard to preventing injury or damage to surrounding
equipment and to the fan itself.
1 Suction
Warning!
Centrifugal fans have high suction power. Objects, clothing and hair can easily be sucked into the fan and cause
injury. Make sure that there are no persons nearby the inlet side when the fan operates. The fan must never
operate without a wire guard because the rotation impeller can cause serious injury. Never put the hand directly at
the inlet opening.
2 Discharge
side
Warning!
There is a powerful stream of air from the discharge side. Foreign bodies that might have been sucked into the fan
can be thrown out at high speed and cause injury. Never put the hand directly at the discharge opening.
3 Temperature
Warning!
When the fan operates the fan housing takes the temperature of the conveyed media added to the compression
heat. If the fan housing temperature exceeds 50°C the fan must be protected from direct contact to prevent burn
injury.
4 Electrical
connection
Warning!
Electrical connection must be made by skilled labour only. The drive motor should be protected with an overload
switch.
5 Permitted
applications
Warning!
MPT/MPB-fans are not to be used for conveying aggressive, toxic or air with high humidity or gas or explosive air-
gas mix.
6 Sound
level
The sound pressure level is not the same over the fans whole range. In some cases it is necessary to use a
silencer. We recommend the user to check the sound pressure level.
D Installation
1 Transportation
Check all parts for damage during transportation and that the impeller runs free inside the housing. The blowers
are to be installed in weather-protected places and are not to be stored outdoors unprotected. Mount hoisting hook
carefully, and do only use lifting arrangements with sufficient strength.
2
Arrangements and assembling
Mount the fan horizontally or vertically in a weather-protected place. Make sure that the fan is protected from
vibration and shock. Supply open inlet and discharge openings with guards according to valid regulations. Also
make sure that the drive motor is supplied with sufficient ventilation. The permitted maximum temperature of
surroundings is 40°C.
3 Electrical
connection
Attention!
The operations described in this part are to be made by skilled labour only. Connect the fan in accordance with the
wiring diagram in the terminal box. The respective VDE regulations and the directions of the local power supply
company are to be complied with.
The fan is equipped with a drive motor for single- or three-phase AC. The motor should be protected with an
overload switch. Connection to earth is to be found in the terminal box.
