Ventur MPT Installation instructions

Version V-6.1 © Ventur tekniska ab 2010
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V abcdefgh abcdef
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
ATechnical data
BWarranty
CSafety
DInstallation
EStart of operation
FMaintenance
GSpare parts list
HManufacturer 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.
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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.

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Connection of three-phase AC unit
(high voltage Y-connection)(low voltage -connection)
Connection of single-phase AC unit
The arrows indicate the direction of rotation seen from the shaft side of the motor.
4 Inspection of rotation direction
Start up the fan for a short moment, inspect the rotation direction. The rotation direction of the impeller must be in
accordance with the arrows on the motor. If not, move the L1 and L3 phases for three-phase operation or check the
wiring circuit in the terminal box for single-phase operation. Incorrect rotation direction will cause reduced capacity
of the fan and could damage the impeller.
E Start of operation
If the rated current indicated on the rating plate is being exceeded during operation, it should be checked whether
the available supply voltage and frequency are in accordance with the embossed data. The drive motor is sized for
the power requirements up to a maximum allowed pressure (see capacity curves in catalogue). At higher pressures
the power consumption will increase with overheating as consequence. Observe that overheating could occur
because of compression heat even when the power of the motor is not exceeded. Installation of thermal protection
is recommended preventing overheating. Overloading can be avoided through installation of relief valve which will
keep the maximum allowed working point. Do not expose the fan to vibrations and shock.
F Maintenance
MPT/MPB-fans are equipped with enclosed grooved ball bearings that do not need lubrication. The grease filling is
sufficient for the whole service life of the bearings.
Attention!
Repair work on fans should be done by the manufacturer. We do not take any responsibility for repairs done by
third parties.
G Spare parts list
When ordering spare parts, please state the size of the fan and part number in accordance with the spare parts list
(page 5).
1 N
U1 Z1
Z2 U2
1 N
U1 Z1
Z2 U2
1 2 3
U1 V1 W1
W2 U2 V2
1 2 3
U1 V1 W1
W2 U2 V2
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H Manufacturer Declaration
EC Declaration of conformity for machinery
(Machinery Directive 2006/42/EC, Annex 2, A)
Manufacturer: Ventur tekniska ab
Manufakturgatan 7 A
SE-417 07 GÖTEBORG
Sweden
Name and address of the person authorised to compile the relevant technical file:
Name: Peter Skoow
Address: See above
Herewith declares that: Centrifugal Fans Type MPT/MPB
●is in conformity with the relevant provisions of the Machinery Directive (2006/42/EC)
●is in conformity with the provisions of the following other EC-Directives:
Low Voltage Directive 2006/95/EC
And furthermore, declares that:
●the following European harmonised standards have been used:
EN ISO 12100-1
EN ISO 12100-2
This EC Declaration of conformity for machinery is only valid when all conditions stated in the “Assembly-,
Operation- and Maintenance Instructions, EC-declaration” are fulfilled.
The machinery must not be put into service until the final machinery or construction into which it is to be
incorporated has been declared in conformity with the provisions of the Machinery Directive 2006/42/EC.
If modification of the unit is made without our approval, this declaration becomes invalid.
Göteborg 2010-05-10
Peter Skoow
MD, Ventur tekniska ab
Adress Telefon Telefax
Ventur tekniska ab Nat 031-23 50 80 Nat 031-23 87 98
Manufakturgatan 7 A Int [phone] Int [phone]
SE-417 07 GÖTEBORG, Sweden E-mail: [email protected] Web: www.ventur.se

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Spare Parts List
1 Blower housing
2 Impeller
3 Housing cover lid
4 Motor
5 Ventilating fan
6 Fan guard
7 Terminal box
8 Blower base