System air Multibox MUB Series User manual

Montage- und Betriebsanleitung
Installation and Operating Instructions
Installations- och bruksanvisning
Installations- og driftsvejledning
Instrucciones de montaje y servicio

Multibox MUB
DE
GB
SE
Seite 3
Page 27
Sid 51
Side 74
Página 98
 
DK
ES

Originalanleitung: deutsch

Die angegebenen Daten in dieser Bedienungsanleitung dienen allein der Produktbeschreibung. Eine Aussage über eine bestimmte
Beschaffenheit oder eine Eignung für einen bestimmten Einsatzzweck kann aus unseren Angaben nicht abgeleitet werden. Die Anga-
ben entbinden den Verwender nicht von eigenen Beurteilungen und Prüfungen.
Es ist zu beachten, dass unsere Produkte einem natürlichen Verschleiß- und Alterungsprozess unterliegen.
Alle Rechte liegen bei der Systemair GmbH auch für den Fall von Schutzrechtsanmeldungen.
Jede Verfügungsbefugnis, wie Kopie- und Weitergaberecht, liegt bei uns.

Originalbetriebsanleitung wurde in deutscher Sprache erstellt.
The data stated in these operating instructions are merely for the purpose of describing the product. Information about a certain pro-
perty or suitability for a certain purpose of use cannot be derived from our information. The information does not release the user from
his own assessments and examin-ations.
Please consider the fact that our products are subject to a natural wear and ageing process.
All rights are with Systemair GmbH, also for the event of applications for protective rights.
Any powers of use, such as copying and forwarding rights, are with us.

original operating instructions have been written in the German lan-guage.
Information om viss egenskap eller lämplighet för ett visst ändamåls användning kan inte härledas från vår information. Informationen
friar inte användaren från sin egen bedömmning och kontroll. Tänk på att våra produkter omfattas av ett naturligt slitage och åldrande.
Alla rättigheter är hos Systemair, även för för händelsen av ansökan om skyddande av rättigheter. Vi har befogenheten att använda,
t.ex kopiering och vidarebefordran av rättigheter. Ett exempel på utförande visas på titelbladet. Den levererade produkten kan därför
avvika från bilden. Den ursprungliga bruksanvisningen har skrivits på Tyska.
Oplysninger givet i denne vejledning har kun til formål at beskrive produktet. Information om en egenskab eller egnethed til et
bestemt formål, kan ikke udledes fra vor information. Information kan ikke fritage brugeren fra dennes egen vurdering og

Det skal bemærkes, at produkterne vil være udsat for en naturlig slid- og ældningsproces.
Alle rettigheder er forbeholdt Systemair A/S selv i tilfælde af ejendomsrettigheder.
Uden samtykke er rettighederne til kopiering og videregivelse forbeholdt Systemair A/S.

Den originale driftsvejledning er skrevet på tysk.
Los datos descritos en este manual de instrucciones son referentes únicamente al producto descrito. No se puede derivar de estas
indicaciones información relativa a una determinada propiedad o utilidad. Las indicaciones aquí expuestas no eximen al usuario de su
propia responsabilidad y comprobaciones.
Debe tener en cuenta que nuestro producto está sometido a fenómenos de desgaste natural y envejecimiento
Todos los derechos reservados son de Systemair GmbH así como los derechos de protección industrial.
Los derechos sobre la información disponible, sus copias y distribución son de nuestra propiedad exclusiva.
La imagen del componente que aparece en la portada puede diferir de la del producto suministrado. Las instrucciones originales han
sido editadas en alemán.







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Table of contents
1 General information ..............................................28
1.1 Portrayal of the information ......................................28
1.2 Notes on the documentation .....................................28
2 Important safety information .............................29
2.1 Safety notes...................................................................29
2.2 Personnel .......................................................................29
2.3 Intended use ..................................................................29
2.4 Incorrect use ..................................................................30
3 Warranty ................................................................30
4 Delivery, transport, storage .................................30
4.1 Delivery ..........................................................................30
4.2 Transport ........................................................................31
4.3 Storage ............................................................................31
5 Description .............................................................32
5.1 Description of multibox MUB and MUB (UL) ..........32
5.2 Description of multibox MUB/T .................................34
5.3 Description of Multibox MUB/F .................................36
5.4 Description of the MUB-EC Multibox ........................38
5.5 Type key .........................................................................39
5.6 Technical data ..............................................................40
5.7 Safety devices ...............................................................40
5.8 Motor data .....................................................................40
6 Assembly ...............................................................41
6.1 Safety information .......................................................41
6.2 Preconditions for assembly ........................................41
6.3 Assembly ........................................................................41
7 Electrical connection .............................................43
7.1 Secure 3-phase motors ...............................................43
7. 2 Connect temperature monitor ...................................43
8 Commissioning ..................................................... 44
8.1 Preconditions .................................................................44
8.2 Commissioning ..............................................................44
9 Operation ...............................................................45
9.1 Safety notes...................................................................45
9.2 Operating conditions ...................................................45
9.3 Operation/use ...............................................................45
10 Maintenance / remedying of faults .................... 46
10.1 Defects and remedying ...............................................46
10.2 Cleaning ..........................................................................47
10.3 Maintenance, repairs ...................................................47
10.4 Replacement parts .......................................................47
11 De-installation / Dismantling .............................. 48
12 Disposal ................................................................. 48
12.1 Disposing of the Multibox ...........................................48
12.2 Disposing of packaging ...............................................48
27

1 General information
1.1 Portrayal of the information
HAZARD
Direct danger
Failure to comply with this warning leads directly to death or to serious bodily harm.
WARNING
Possible danger
Failure to comply with this warning possibly leads to death or to serious bodily harm.
CARE
Hazard with a low risk
Failure to comply with this warning leads to slight to moderate injuries..
CARE
Hazard with risk of property damage
Failure to comply with this warning leads to property damage.
NOTE
Useful information and notes
1.1.1 Symbols used
General hazard symbol 
Electrical voltage Risk of combustion
1.1.2 Portrayal of instructions for action
Instruction for action 
1. Carry out this action
2. Carry out this action
3. (if applicable, further actions)
1.2 Notes on the documentation
WARNING
Hazard as a result of improper dealings with the Multibox.
These operating instructions describe safe use of the Multibox.
›Read the operating instructions exactly.
›Keep the operating instructions with the Multibox. They must permanently be available at the place of use.
28

2 Important safety information
2.1 Safety notes
Planners, plant builders and operators are responsible for the proper assembly and intended use.
• 
• Provide generally prescribed electrical and mechanical protective devices.
• During assembly, commissioning, maintenance and controls, secure the place of assembly and the premises for any preparations
against unauthorised access.
• Obey the industrial safety directives.
• Safety components may not be circumvented or put out of function.
• Keep all the warning signs on the Multibox complete and in a legible condition.
• Regularly instruct the personnel about safety-conscious conduct.
NOTE
We have carried out a risk assessment for the Multiboxes. However, it can only apply to the Multibox itself. After
installation of the Multibox, we recommend carrying out a risk assessment of the total sys-tem. In this way, you have
the guarantee that there is no risk potential from the system.
2.2 Personnel
2.2.1 Assembly personnel
• 
2.2.2 Work on the electrical equipment
• Work on the electrical equipment of the ventilator may only be done by a trained electrician or a person given instruction in electri-
cal engineering. This person must know the relevant safety directives in order to recognise or to avoid possible risks.
2.2.3 Personnel for operation, use, maintenance and cleaning
• Operation, use, maintenance and cleaning may only be done by trained personnel with the authorisation to do so. The operating
personnel must possess knowledge of how to use the Multibox. In the event of a disturbance or an emergency, they must be able to
react correctly and suitably.
2.3 Intended use
The Multiboxes (MUB) are intended for installation in ventilation systems. They can be installed both in channel systems and also with
free suction via an admission nozzle and a suction-side contact protec-tion grid. Free blow-out via a contact protection grid is also pos-
sible following prior consideration dur-ing design.
• The Multiboxes are suitable for the conveying of clean air, air with a low dust and grease content, media up to a max. air density of
1.3 kg/m3 and an admissible moisture of max. 95%.
• The maximum admissible operating data on the name plate apply for an air density p = 1.2 kg/m3 (sea level) and a maximum air
moisture of 80%.
• The multiboxes are suited for the following range of ambient and conveyed goods temperatures:
–MUB from -20 °C to +50 °C
–MUB (UL) from -30 °C to +50 °C
–MUB/F from -20 °C to +55 °C, 400° C/120 min
–MUB/T from -20 °C to +120 °C
–MUB-EC from -20 °C to +60 °C
29

2.4 Incorrect use
Incorrect use is above all if you use the Multibox in a way other than that described.
The following points are incorrect and hazardous:
• conveying explosive and combustible media
• conveying aggressive media or ones containing dust or grease
• 
• positioning in moist rooms
• operation in an explosion-capable atmosphere
• operation without channel system or protective grid
• operation with the air connections closed.
3 Warranty
Warrant for our products shall be determined according to the contractual agreements, our quotations and also, as a supplement, our
General Terms and Conditions of Business. Warranty claims shall presuppose that the products are correctly connected, operated and
used according to the data sheets, also maintained if necessary.
4 Delivery, transport, storage
4.1 Delivery
-
mend that they are transported to the place of assembly in the packaging.
CARE
Hazard from cutting
›Wear protective gloves when unpacking.
Check delivery
Check the Multibox for obvious defects, which can impair safe operation.
Above all, pay attention for defects, on the connection wire, terminal boxes and rotor, cracks in the housing, missing rivets,
screws or covering caps.
30

4.2 Transport
WARNING
Hazard of impact if the Multibox falls down
»Transport the device carefully and with suitable hoisting gear.
»Wear a helmet and goggles.
WARNING
Electrical hazard from damaged connection wire or connections
»Do not use the connection wire, terminal box or rotor for transporting..
Transport and unload the pallet with the necessary care.
Transport the Multibox either in the original packaging or on the transport devices provided for this pur-
pose (e.g. lifting screws) with suitable hoisting equipment.
Only lift the Multibox by the base frame when unpacking it.
In manual transport, remember human lifting and carrier powers which can be expected (weight can be
seen on the name plate).
Avoid impacts and blows and distortion of the base frame and other parts of the housing.
4.3 Storage
CARE
Hazard due to loss of function of the motor bearings
»Avoid storing for too long (recommendation: max. 1 year)
»Turn the rotor manually every three months, wear gloves.
»Before installation, check proper function of the motor bearings.
Store the Multibox in the original packaging dustproof, dry and protected against weather.
Avoid extreme effects of heat or cold.
31

5 Description
5.1 Description of multibox MUB and MUB (UL)
• Speed-variable
• Multifunctional use
• Integrated thermo-contacts
• Low sound level
• Blow-out direction can be changed on site at any time without any problems
• Safe for operation and maintenance-free to a great extent
• Installation possible in any position
MUB fans have been equipped with bent-backwards, free-running fan wheels of polyamide and vol-tage-variable external rotor
motors. An exception is formed by the Multibox MUB 062 630 D4-A2, in which the speed variation is only possible by a frequency
inverter.
The 400V version is suitable for D/Y connection and makes 2-level operation possible (not with Multi-box MUB 062 630 D4-A2). An

for the motors of the MUB fans.
The frame section of the housing comprises corrosion-proof aluminium with aluminium or alternatively plastic corners. In this way, the
highest possible impact resistance is guaranteed. The housing itself comprises double-shelled panels of galvanised sheet metal with a
20 mm mineral wool insulation.
For thermal decoupling, the side sheets have tabular rivets. As a default, the Multibox fans have been designed for a straight air
-
tion. MUB fans can thus be used in the rack system area as air-feed or waste air devices.
The Multiboxes are suitable for the conveying of clean air, air with a low dust and grease content, me-dia up to a max. air density of
1.3 kg/m3 and an admissible moisture of max. 95%.
1
2
45
4
6
3
1
Fig. 1: MUB with accessories
Legende
1FGV Flexible connection 4 SRKG 
2WSG Weather-protection grid 5 WSD Weather-protection roof
3USG Transition connections, square to round 6 MUB Multibox MUB, MUB (UL), MUB-EC
32

5.1.1 Name plates
TYPE: MUB042 500DV-A2
400 D/Y V ~ 50 Hz
3,88 A 1340 / 1100 min P2=1,5 kW
1
2809 / 722466 / 2010-07-01
WEIGHT 67,4 kg IP 54
CAPAC INS.CL.F
MADE IN GERMANY
M
1
3
4
6
7
TYPE: MUB042 500DV-A2(CN-UL)
400 YV~50Hz
4,3 A 1340 /1100 min P2=1,5 kW
1
UL-Certificate E342146
33581/765945/2010-10-13
Temp.min -30 °C WEIGHT 68 kg IP 54
Temp.max 50 °C CAPAC INS.CL.F
MADE IN GERMANY
M
5
1
3
4
6
7
2
Fig. 2: Name plate MUB Fig. 3: Name plate MUB (UL)
Legend
1 Type designation 1 Type designation (country of manufacture - UL-registration)
2 Article number/ Production number / Manufacturing
date
2 Article number/ Production number / Manufacturing date
3 Voltage / Frequency / Motor output 3 Voltage / Frequency / Motor output
4 Current / Speed (max./min.) / Output 4 Current / Speed (max./min.) / Output
5
6 Registration Ukraine, Russia / Weight / Protection class 6 Minimum temperature / Weight / Protection class
7 Capacity at 1~ / Insulation class, motor 7 Maximum temperature / Capacity at 1~ / Insulation class,
motor
Dimensions
BG ABCDøD øE
025 355 500 500 420 378 355 224
042 400 670 670 590 548 404 253
042 450 670 670 590 548 454 253
042 499 670 670 590 548 504 321
042 500 670 670 590 548 504 321
062 560 800 800 720 676 570 361
062 630 800 800 720 678 635 407
062 710 1000 1000 920 878 630 389
Table 1: Dimensions of multiboxes MUB and MUB (UL)
MUB 355 to 500E4 MUB from 500DV
33

5.2 Description of multibox MUB/T
• Up to 120°C medium temperature
• Multi-functionally applicable e.g. for kitchen exhaust air
• Modular system
• Pre-assembled isolator is standard
• Low sound level
• Maintenance-free and reliable
• 
• Motor outside of the air stream
All MUB/T fans have impellers with backward curved blades, manufactured from aluminium, and IEC standard motors outside of the air

up to 120°C continuously. Motor protection by cold conductors or thermal contact, to be connected to an external motor protection
device.


bottom panel is shaped as a grease tray and incorporates a premounted drain plug. An isolator switch is mounted on the casing. The

Fig. 4: Multibox MUB/T with accessories
Legend
1MUB/T Multibox 4EGF Protection guard
2FGV Flexible connection 5 CCM or
CCMI
Transition connections isolated or not isolated,
square to round
3UGS Transition connections, square to round
1
2
4
3
5
34

5.2.1 Name plate
TYPE:
CAPACINS.CL.
WEIGHT 57 kg
F
816568
1,39 A
50 Hz
400 D V~
P2=0,37 kW
1360
IP54
MUB/T 042 400DV
33655 2011-02-11
min¹
//
MADE IN GERMANY
1
3
4
6
7
2
1 Type designation
2 Article number/ Production number / Manufacturing date
3 Voltage / Frequency / Motor output
4 Current / Speed (max./min.) / Output
6 Registration Ukraine, Russia / Weight / Protection class
7 Capacity at 1~ / Insulation class, motor
Fig. 5: Name plate MUB/T
5.2.2 Dimensions
BG ABCøD øE F
E
D
C
B
F
1 Zoll
A
042 400 670 670 548 404 253 300
042 450 670 670 548 454 286 300
062 500 800 800 548 504 321 300
062 560 800 800 718 570 361 321
062 630 800 800 718 635 407 321
100 630 1000 1000 918 635 389 378
Table 2: Dimensions of multiboxes MUB/T
35

5.3 Description of Multibox MUB/F
• smoke-removal fan
• 400°C/120 min. (F400)
• insulated housing
• low noise level
• can be operated on two levels
• tested to EN 12101-3 with LGAI, Barcelona
The smoke-removal fans of the MUB/F series are suited for conveying hot fume gases in the standard area with standard tempera-


parts comprise double-shelled panels of galvanised steel sheet with a mineral wool insulation 20 mm in thickness. They have smooth
surfaces as protection against dust and dirt deposits. The blow-out direction can be chosen quite simply between a straight and lateral
direction. The motors are aligned to use of high temperatures, F 400°C / 120 min. The motors are available as one- or two phase ver-
sions.
123
4
6
5
Fig. 6: Multibox MUB/F
Legend
1RSA Sound absorber 5 WSD Weather-protection roof
2EVH Elastic connection 6 MUB/F Multibox
3LRK  7GFL 
4SDM Service door
5.3.1 Name plate
TYPE: MUB/F 062 630 D4 HT
400 DV
8,2 A kW
33302 / 7367
87 / 2010-09-01
T
CAP AC
COSPH
M
WEIGHT 163 kg IP55
INS.CL.F
1
4
6
7
2
8
1 Type designation
2 Article number/ Production number / Manufacturing date
3 Voltage / Frequency / Motor output
4 Current / Speed (max./min.) / Output
6 Registration Ukraine, Russia / Weight / Protection class
7 Capacity at 1~ / Insulation class, motor
8 Temperature (TR: Temperature on ventilator)
Fig. 7: Name plate MUB/F
7
36

5.3.2 Dimensions
BG ABCDøE øH øI J max.
A
B
E
I
C
D
H
J
042 400 670 670 590 548 410 400 289 783
042 450 670 670 590 548 454 400 289 783
062 500 800 800 720 676 520 560 364 915
062 560 800 800 720 676 570 560 364 915
062 630 800 800 720 676 650 630 456 915
Table 3: Dimensions of multiboxes MUB/F
5.3.3 Installation conditions
Type designation Temperature-time
class to DIN EN
12101-3
Snow-load
class
Wind load Installation condi-
tions
MUB/F 042 400 D4-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 400 D6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 400 D4-6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 450 D4-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 450 D6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 450 D4-6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 500 D4-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 500 D6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 500 D4-6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 560 D4-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 560 D6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 560 D4-6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 630 D4-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 630 D6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
MUB/F 042 630 D4-6-HT F400 (120) - - IB, AB, IF, VA, HA, LB
Table 4: Installation conditions for MUB/F multiboxes
Legend for the installation conditions in Table 4
IB Can be positioned in combustion area VA Suitable for vertical positioning
AB Can be positioned outside the combustion area HA Suitable for horizontal positioning
IF Can be positioned outdoors LB Suitable for fan operation
37

5.4 Description of the MUB-EC Multibox
• 100 % controllable
• integrated motor protection
• multifunctional use
• low sound level
• blow-out direction can be changed on site at any time without
problems
• installation in any position possible
• safe for operation and maintenance-free
• saves energy

motors in a DC version. The output electronics have been integrated into the motor housing. Their input voltage can vary for single-
phase between 200 V and 277 V or for three-phase between 380 V and 480 V. Actuation is via a 0...10 V input signal, via which the
fan can be controlled. All motors have been suspended free of vibrations and are suited for 50 Hz and 60 Hz. The housing comprises
a self-supporting construction of aluminium section with encapsulated screw channels. The corners comprise highly impact-resistant

panels have tabular rivets. Thanks to the box-of-bricks system, all MUB-EC multiboxes can be used as ideal and individual fed and
exhaust air solutions.
5.4.1 Name plate MUB-EC
TYPE: MUB042 500EC-A2
400 V ~ 50/60 Hz
1,66 A 1340 min 1,05 kW
1
30314 / 782763 / 2010-12-02
WEIGHT 80 kg IP 54
CAPAC INS.CL.F
MADE IN GERMANY
M
1
3
4
6
7
1 Type designation
2 Article number/ Production number / Manufacturing date
3 Voltage / Frequency / Motor output
4 Current / Speed (max./min.) / Output
6 Registration Ukraine, Russia / Weight / Protection class
7 Capacity at 1~ / Insulation class, motor
Fig. 8: Name plate MUB-EC
NOTE
The accessories for Multibox MUB-EC are identical with the accessories for the standard multibox MUB (see Fig. 1)
38

5.4.2 Dimensions
BG ABCøD øE F
025 315 EC 500 500 420 315 200 40
025 355 EC 500 500 420 255 224 40
042 400 EC 670 670 590 400 253 40
042 450 EC 670 670 590 450 286 70
042 500 EC 670 670 590 504 321 70
062 560 EC 800 800 720 560 360 70
062 630 EC 800 800 720 630 407 70
Table 3: Dimensions of multiboxes MUB-EC
5.4.3 Type key
MUB 042 500 D V A 2 IE2



 A: Standard motor
HT: High temperature
number of poles (not
applicable for EC)
V: 4-4 poled voltage controllable
S: 6-6 poled voltage controllable
4: 4 poled controllable by frequency converter
6: 6 poled controllable by frequency converter
Motor type
E: single-phase alternating current
D: three-phase current
EC: commutate electronically
impeller diameter
size
Multibox
MUB
MUB/F
MUB/T
Fig. 9: Type key
39

5.6 Technical data
MUB MUB (UL) MUB/T MUB/F MUB-EC
Temperature range [°C]
medium
-20 °C ... +50 -30 °C ... +50 -20 °C ... +120 -20 °C ... +55
400 °C/120 min.
-20 °C ... +60
Voltage / current strength see name plate
Protection class see name plate
Sound pressure at 1 m [dB(A)] 46 ... 75
Dimensions see name plate
Weight see name plate
Rotor diameter see name plate
Table 6: Technical data of Multiboxes
NOTE
Further technical data can be found on the data sheet of your Multibox.
5.7 Safety devices
As overheating protection for the motors of the multiboxes, an integrated thermo-contact has been installed with lines included for
connection to a protective motor switching device.
CARE
Property damage as a result of overheating of the motor
»The motor can overheat and be destroyed if the thermo-contacts have not been functionally connec-
ted.
»Always connect thermo-contacts to a protective motor switching device!
5.8 Motor data
The motor data can be found in the technical documents of the motor manufacturer.
40

6 Assembly
6.1 Safety information
›
›Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
›Safety elements, e.g. protective grids, may not be dismantled, circumvented or put out of function.
6.2 Preconditions for assembly
• 
• The installation position is unimportant, the Multibox can be installed both horizontally and also vertically, likewise the blow-out
direction can be changed on site.
• Only to be positioned outside with a weather-protection roof (accessory).
• When assembling the MUB/T, please make sure that the there is enough space for the installation of the unit
(important at motor side, in case a motor or impeller requires replacement, see Fig. 10).
Fig. 10: MUB/T Preconditions for assembly (motor side)
6.3 Assembly
NOTE
The fan may only be lifted by the base frame when unpacking it.
Do not distort the housing of the Multibox in installation.

Ensure secure access to the Multibox for maintenance and repairs.
Provide for contact and suction protection and safety distances pursuant to DIN EN 294 and DIN 24167-1.

6.3.1 Floor assembly


Fit the air connection lines and the accessories.
6.3.2 Wall and ceiling assembly
WARNING
Hazard from falling parts
›Check the base (wall/ceiling) for strength before assembly.
›-
tion on the name plate).

Fit the air connection lines and the accessories.
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6.3.3 Changing the blow-out direction

replaceable side panels.
Remove the side panel of the required direction.
Close the other side with this side panel (see Fig. 11).
NOTE (MUB T / MUB T-S)
The drain plug is secured inside the box for transport, closed with a protective cap. During installation the protec-

assembly of the drain plug it has to be connected to the drain pipe provided at site.

2
3
Fig. 11: MUB with various possibilities of blow-out
Legend

2
3Change of blow-out direction
NOTE
Speciality: MUB/T

possible.
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7 Electrical connection
The electrical connection picture can be seen on the motor console.
NOTE
›The motors contain triple posistors. More than two posistor chains may not be switched in series, as this can lead

›Maximum check voltage of the posistors, 2.5 V.
WARNING
Hazard from electrical voltage
›
›Electrical connection in harmony with the valid directives.
›Avoid penetration of water into the terminal box.
›Pay attention to the 5 rules of electrical engineering:
–clear (all-pole separation of an electrical system from live parts)
–secure against switching on again
–establish freedom from voltage
–earth and short-circuit
–cover or fence off neighbouring live parts.
Connect the electrical connection according to the circuit diagram on the motor console.
CARE
Property damage as a result of overheating of the motor
»
»
Connect the thermo-contacts/posistor connections to a protective motor switching device.
For plastic terminal boxes, do not use any gland bolt connections of metal.
Lay the mains feed line from the outside through a bore.
Seal the bore in order to guarantee the IP 54 protection class.
Seal the bore against water penetration. Depending on the kind of cable duct, provide water drainage bores or use a sealing putty.
Additionally seal the lid screw connections of plastic terminal boxes with sealing putty.
7.1 Secure 3-phase motors
Avoiding two-phase running:
In 3-phase motors, use an all-pole C- or K safety cut-out (current consumption, see name plate).
7.2 Connect temperature monitor
If a temperature monitor is used, it must be connected to a triggering device and/or a motor-protection device.
43

8 Commissioning
8.1 Preconditions
• Fitting and electrical installation have been completed expertly.
• Assembly residue and foreign bodies have been removed from the fan area.
• Suction and blow-out openings are free.
• 
• The protective conductor has been connected.
• The thermo-contacts (temperature monitors) have been properly connected to the motor protection switch.
–The motor protection switch is functional.
–The temperature monitor is functional.
• The cable insert has been sealed.
• Connection data correspond to the data on the name plate.
• The nominal current consumption (name plate) is not exceeded.
8.2 Commissioning
WARNING
Hazard as a result of electrical voltage
›
Switch the Multibox on as planned.
WARNING
Hazard from bursting parts
›When checking the direction of rotation of the rotor, wear goggles.
Check:
–the direction of rotation/conveying. The direction of rotation looking at the rotor always applies.
–the smoothness of running.
8.2.1 Safety elements

44