SystemAir Multibox MUB/T Series, Multibox MUB/T-S Series, Multibox MUB-CAV/VAV Series, Multibox MUB/F Series, Multibox MUB Series Installation And Operating Instructions Manual

Document in original language | · 007

Multibox
MUB, MUB/T, MUB/T-S, MUB-CAV/VAV, MUB/F

Installation and Operating Instructions

GB

| 007

© Copyright Systemair AB
All rights reserved
E&OE

Systemair AB reserves the rights to alter their products without notice.
This also applies to products already ordered, as long as it does not affect the previously agreed specifications.

| 007

Contents

1 General information ........... . ..... . ...... ...... ...... .....1

1.1 Notice symbols . . ..... . ...... ...... ...... . ..... . .....1

1.1.1 Instruction symbols. . ...... ...... ...... .1

2 Important safety information .... ...... . ..... . ...... ...... 1

2.1 Personnel ...... ...... ...... . ...... ...... ...... ...... . .1

2.2 Personal protective equipment...... ...... ...... 2

2.3 5 rules of electrical safety ...... ...... . ..... . .....2

3 Warranty... ...... . ..... . ...... ...... ...... ...... . ..... . ...... ..2

4 Delivery, transport, storage . ...... ...... ...... . ..... . .....2

4.1 Safety information. . ...... ...... ...... ...... . ..... . .2

4.2 Delivery ..... ...... ...... . ...... ...... ...... ...... . ....2

4.3 Transport... ...... . ..... . ...... ...... ...... . ..... . .....3

4.3.1 Safety information.. ...... ...... ...... . .3

4.4 Storage... . ...... ...... ...... . ..... . ...... ...... ...... .3

5 Description ....... . ..... . ...... ...... ...... . ..... . ...... ...... .4

5.1 MUB equipped with an EC motor. ...... ...... ...4

5.2 MUB equipped with an AC motor . ..... . ...... ..4

5.3 Description MUB ... ...... . ...... ...... ...... ...... . .4

5.4 Description MUB/T and MUB/T-S ..... ...... . ...4

5.5 Description MUB-CAV/VAV... ...... ...... ...... . .5

5.5.1 Sensor control module for
differential pressure and volume

PCA1000/6000D2. ...... ...... . ...... ..6

5.6 Description MUB/F . ...... ...... ...... ...... . ..... . .6

5.7 Fan data..... . ..... . ...... ...... ...... ...... . ..... . ....7

5.8 Motor data . ...... ...... . ..... . ...... ...... ...... .....7

5.9 Intended use .... . ..... . ...... ...... ...... . ..... . .....7

5.10 Incorrect use .... ...... ...... . ..... . ...... ...... .....7

6 Name plate and type key ...... ...... ...... ...... . ..... . ...8

7 Accessories.... . ...... ...... ...... ...... . ...... ...... ...... ....9

8 Installation.. ...... . ..... . ...... ...... ...... ...... . ..... . .....10

8.1 Safety information. . ...... ...... ...... ...... . ..... 10

8.2 Preconditions ...... ...... ...... ...... . ...... ...... . 10

8.3 Installation variations ....... . ...... ...... ...... .. 11

8.4 Changing the discharge direction .. ...... ..... 12

8.5 Weather protection roof (WSD) .. ...... . ...... 13

8.6 Weather protection grille (WSG) .. . ...... .....14

8.7 Assembly/Disassembly impeller —

Internal rotor motor ... . ..... . ...... ...... ...... . . 15

9 Electrical connection .. ...... ...... . ..... . ...... ...... ..... 17

9.1 Safety information. . ...... ...... ...... ...... . .....17

9.2 Preconditions ...... ...... ...... . ..... . ...... ...... . 17

9.3 Connection . ...... ...... . ...... ...... ...... ...... . .. 17

9.4 Cable bushing panel... ...... . ..... . ...... ...... .. 17

9.5 Protective grounding wire ...... ...... . ...... ... 17

9.6 Residual current circuit breaker..... ...... ..... 18

9.7 Protecting the motor. . ...... ...... ...... ...... . .. 18

9.8 Variable-speed fans ...... . ...... ...... ...... ..... 18

10 Commissioning ..... ...... ...... . ..... . ...... ...... ...... ... 19

10.1 Safety information. . ...... ...... ...... ...... . .....19

10.2 Preconditions ...... ...... ...... . ..... . ...... ...... . 19

10.3 Tests .... ...... . ..... . ...... ...... ...... ...... . ..... . . 19

11 Operation . . ...... ...... ...... . ..... . ...... ...... ...... ...... . 20

11.1 Safety information. . ...... ...... ...... ...... . .....20

11.2 Preconditions ...... ...... ...... . ..... . ...... ...... . 20

12 Troubleshooting/maintenance/repair .. ...... . ..... . . 20

12.1 Safety information. . ...... ...... ...... ...... . .....20

12.2 Troubleshooting.. . ..... . ...... ...... ...... ...... . . 20

12.3 Maintenance.... . ...... ...... ...... . ..... . ...... ... 22

12.4 Spare parts .. ...... ...... . ..... . ...... ...... ...... . . 22

13 Cleaning... ...... . ..... . ...... ...... ...... . ..... . ...... ...... . 23

13.1 Safety information. . ...... ...... ...... ...... . .....23

13.2 Procedure..... . ..... . ...... ...... ...... . ..... . ...... 23

14 Deinstallation/dismantling. ...... ...... . ..... . ...... .....23

15 Disposal ..... ...... ...... ...... . ...... ...... ...... ...... . .....23

16 EU Declaration of conformity — Multibox . ..... . .....24

17 EU Declaration of conformity — Thermo

fans ... ...... . ..... . ...... ...... ...... ...... . ..... . ...... ...... 24

18 EU Declaration of conformity — Smoke extract

fans ... ...... . ..... . ...... ...... ...... ...... . ..... . ...... ...... 24

19 Commissioning Report.. ...... . ...... ...... ...... ...... . .. 25

General information |

1

1 General information

1.1 Notice symbols

Danger

Direct hazard

Failure to comply with this warning will lead
directly to death or to serious injury.

Caution

Hazard with a low risk

Failure to comply with this warning may lead to
moderate injuries.

Warning

Potential hazard

Failure to comply with this warning may lead to
death or serious injury.

Important

Hazard with risk of damage to objects

Failure to comply with this warning will lead to
damage to objects.

Note:

Useful information and instructions

1.1.1 Instruction symbols

Instruction

Instruction with xed sequence

♦ Carry out this action

1. Carry out this action

3. (if applicable, further actions)

♦ (if applicable, further actions)

2. Carry out this action

2 Important safety information

Planners, plant builders and operators are responsible for the proper assembly and intended use.

♦ Read the operating instructions completely and carefully.
♦ Keep the operating instructions and other valid documents, such as the circuit diagram or motor instructions, with

the fan. They must always be available at the place of use.

♦ Observe and respect local conditions, regulations and laws.
♦ Only use the fan in a awless condition.
♦ Provide generally prescribed electrical and mechanical protective devices.
♦ During installation, electrical connection, commissioning, troubleshooting, and maintenance, secure the location and

premises against unauthorised access.

♦ Do not circumvent any safety components or put them out of action.
♦ Keep all the warning signs on the fan complete and in a legible condition.
♦ The device is not to be used by persons (including children) with reduced physical, sensory or mental capabilities, or

lack of experience and knowledge, unless they have been given supervision or instruction.

♦ Do not allow children to play with the device.

2.1 Personnel

The fan may only be used by qualified, instructed and trained personnel. The persons must know the relevant safety di­rectives in order to recognise and to avoid risks. The individual activities and qualifications can be found in Table 1 Qual-
ifications, page 1.

Table 1 Qualifications

Activities

Qualifications

Storage, operation, transport, cleaning, disposal Trained personnel (see following note)

Electrical connection, commissioning, electrical
disconnection

Electrical expert or matching qualification

| 007

2

|

Warranty

Qualifications cont'd

Installation, disassembly Fitter or matching qualification

Maintenance

Electrical expert or matching
qualification

Fitter or matching
qualification

Repair

Electrical expert or matching
qualification

Fitter or matching
qualification

Smoke extraction fans and EX fans only by agreement with
Systemair.

Note:

The operator is responsible for ensuring that personnel are instructed and have understood the contents of
the operating instructions. If something is unclear, please contact Systemair or its representative.

2.2 Personal protective equipment

Wear protective equipment during all work in the vicinity of the fan.

• protective working clothes

• protective working shoes

• protective working gloves

• helmet

• goggles

• hearing protection

2.3 5 rules of electrical safety

1. Disconnect (disconnection of
the electrical system from
live components at all
terminals)

2. Prevent reactivation

3. Test absence of voltage

4. Ground and short-circuit

5. Cover or restrict adjacent live parts

3 Warranty

For the assertion of warranty claims, the products must be correctly connected and operated, and used in accordance
with the data sheets. Further prerequisites are a completed maintenance plan with no gaps and a commissioning re­port. Systemair will require these in the case of a warranty claim. The commissioning report is a component of this
document. The maintenance plan must be created by the operator, see section 12.3 Maintenance, page 22.

4 Delivery, transport, storage

4.1 Safety information

Warning: Risk from rotating fan blades

♦ Prevent access by unauthorised persons by safety personnel or access protection.

Warning: Suspended loads

♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,

page 2.

♦ Do not walk under suspended loads.
♦ Make sure that there is nobody under a suspended load.

4.2 Delivery

Each fan leaves our plant in an electrically and mechanically proper condition. We recommend transporting the fan to
the installation site in the original packaging.

Checking delivery

♦ Check the packaging and the fan for transport damage. Any findings should be noted on the cargo manifest.
♦ Check completeness of the delivery.

Unpacking

| 007

Delivery, transport, storage |

3

Warning

When opening the transport packaging, there is a risk of damage from sharp edges, nails, staples,
splinters etc.

♦ Unpack the fan carefully.
♦ Check the fan for obvious transport damage.
♦ Only remove the packaging shortly before assembly.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective

equipment, page 2.

4.3 Transport

4.3.1 Safety information

Warning: Electrical or mechanical hazards due to fire, moisture, short circuit or malfunction.

♦ Never transport the fan by the connecting wire, terminal box, impeller, protection grille, inlet cone or silencer.
♦ In open transport, please make sure that no water can penetrate into the motor or other sensitive parts.
♦ We recommend transporting the fan to the installation site in the original packaging.

Caution: If transported without care during loading and unloading, the fan may be damaged.

♦ Load and unload the fan carefully.
♦ Use hoisting equipment that is suitable for the weight to be hoisted.
♦ Observe the transportation arrows on the packaging.
♦ Use the fan packaging exclusively as transport protection and not as a lifting aid.

4.4 Storage

♦ Store the fan in the original packaging in a dry, dust-free location protected against weather.
♦ Avoid the effects of extreme heat or cold.

Important

Hazard due to loss of function of the motor bearing

♦ Avoid storing for too long (recommendation: max. 1 year).
♦ Check that the motor bearing functions properly before installation.

| 007

4

|

Description

5 Description

5.1 MUB equipped with an EC motor

The fans are driven by EC motors. These motors are delivered with a pre-wired potentiometer (0–10 V) that allows you
to easily find the required working point of the fan. All motors are suitable for 50/60 Hz. The input voltage for single­phase units can vary between 200 and 277 V for three phase units between 380 and 480 V. All models have one po­tential-free terminal for error message.

5.2 MUB equipped with an AC motor

For information on speed regulation options, see 6 Name plate and type key, page 8.

5.3 Description MUB

Table 2 Dimensions MUB

[mm]

A B C D

A

D C B

MUB 025... 500 500 420 378
MUB 042... 670 670 590 548
MUB 062... 800 800 720 678
MUB 100... 1000 1000 920 878

5.4 Description MUB/T and MUB/T-S

Airflow direction

The MUB/T is suitable for a 90° airflow direction

application.

The MUB/T-S is suitable for an inline airflow direction

application.

Table 3 Dimensions MUB/T

[mm]

A B C D

D C B

A

1 ''

MUB/T 025...

500 500 420 378

MUB/T 042...

670 670 590 548

MUB/T 062...

800 800 720 678

MUB/T 100...

1000 1000 920 878

| 007

Description

|

5

Table 4 Dimensions MUB/T-S

[mm]

A B C D

DAC B

1 ''

l

MUB/T-S 025 315...

500 500 420 378

MUB/T-S 042 355...

670 670 590 548

MUB/T-S 042 400...

670 670 590 548

MUB/T-S 042 450...

670 670 590 548

MUB/T-S 062 500...

800 800 720 678

MUB/T-S 062 560...

800 800 720 678

MUB/T-S 100 630...

1000 1000 920 878

Table 5 MUB/T-S Dimensions l

MUB/T-S 025 315... D2: 751 mm /DV: 672 mm / E4: 690 mm MUB/T-S 062 500...

D4: 1023 mm

MUB/T-S 042 355... DV: 795 mm / E4: 777 mm MUB/T-S 062 560...

D4: 1065 mm

MUB/T-S 042 400... DV: 813 mm / E4: 849 mm MUB/T-S 100 630...

D4: 1237 mm

MUB/T-S 042 450... D4: 867 mm / E4: 874 mm

5.5 Description MUB-CAV/VAV

Please observe that the input voltage of the controller can vary between 195 and 253 V. The MUB-CAV/VAV with the
integrated controller offers you the possibility for a constant airflow (factory setting) or a constant pressure ventilation
or just to display data.

Constant air volume function (CAV)

If the air volume (factory
setting) is to be kept
constant, the differential
pressure in front of the
inlet cone and in the
inlet cone must be kept
constant.

1

2

1

measuring point — inlet cone

2

measuring point — in front of the inlet cone

Constant pressure - variable air volume function (VAV)

If the pressure in the duct system is to be kept constant, the differential pressure between atmosphere and duct system
must be kept constant. For this operation mode, the position of the measuring tubes must be changed using the „con­stant pressure kit“. This kit and its manual are included in the MUB-CAV/VAV

Table 6 Dimensions MUB-CAV/VAV

[mm]

A B C D E

DCB

A

E

MUB-CAV/VAV 025...

500 500 420 378 586

MUB-CAV/VAV 042...

670 670 590 548 756

MUB-CAV/VAV 062...

800 800 720 678 886

MUB-CAV/VAV 100...

1000 1000 920 878 1086

| 007

6

|

Description

5.5.1 Sensor control module for differential pressure and volume PCA1000/6000D2

The factory setting of the controller is CAV (constant air volume). The measured value is compared with the setpoint
value. The controller adjusts the 0-10 V controlled output for the EC motor to keep the air volume constant. The specific
characteristics of the inlet cone size are considered in the k-factor. Table 7 K-factor MUB-CAV/VAV, page 6. For more
detailed information of the controller module (PCA1000/6000D2), see operating manual of the controller.

Table 7 K-factor MUB-CAV/VAV

025 315EC 100 042 400EC 172 042 450EC-K 235 062 560EC 418 100 630EC

456

025 355EC 143 042 450EC 238 042 500EC 266 062 630EC 500 100 710EC

550

5.6 Description MUB/F

The fan is equipped with high-temperature motors for temperature classification F400/120 min, in single and two­speed versions.

The MUB/F smoke extract fans are suitable for the exhaust of hot smoke gases (once) and for daily ventilation require­ments. After using the fan for the exhaust of hot smoke gases it has to be renewed.

Table 8 Dimensions MUB/F

[mm]

A B C D E F

A

F

E

CB D

MUB/F 042 400

670 670 590 548 400 783

MUB/F 042 450

670 670 590 548 400 783

MUB/F 062 500

800 800 720 676 560 915

MUB/F 062 560

800 800 720 676 560 915

MUB/F 062 630

800 800 720 676 630 915

| 007

Description

|

7

5.7 Fan data

• Max. temperature of transported air, max. ambient temperature, sound pressure –> see data sheet, available in our
online catalogue.

• Voltage, current, enclosure class, weight –> see name plate

5.8 Motor data

The motor data can be found on the name plate of the motor, or in the technical documents of the motor
manufacturer.

5.9 Intended use

All MUB- versions:

• The fans are intended for installation in ventilation
systems. They can be installed both in duct systems
and also with free suction via an inlet cone and a
suction-side contact protection grille. Free discharge
via a contact protection grille is also possible.

• The maximum permissible operating data on the
name plate apply for an air density of 1.2 kg/m³ (sea
level) and a max. air humidity of 80%.

MUB and MUB-CAV/VAV:

The fan is suitable for conveying clean air, with a density
of 1.3 kg/m3 and a max. air humidity of 95%.

MUB/T and MUB/T-S:

The fan is suitable for conveying contaminated air (dust,
kitchen exhaust), with a density of 1.3 kg/m3 and a
max. air humidity of 95%.

MUB/F:

• The fan is suitable for conveying clean air, with a
density of 1.3 kg/m3 and a max. air humidity of 95%.

• The smoke extraction units MUB/F are used in case of
fire to extract smoke gases, as well as in normal
working conditions of up to 55°C.

5.10 Incorrect use

Incorrect use refers mainly to using the fan in another way to that described. The following uses are incorrect and
hazardous:

• Conveying of explosive and combustible media

• Conveying of aggressive media

• Operation in an explosive atmosphere

• Operation without duct system or protection grille

• Operation with the air connections closed

• Installation outside without weather protection

| 007

8

| Name plate and type key

6 Name plate and type key

1 Type designation

1
2

3
4

5

7

8

6

2 Voltage/current/frequency
3

Input power

4

Max. temperature of
transported air

5

Enclosure class/fan
impeller speed/weight

6

Insulation class

7 Article number/production number/manufacturing date 8

Certifications

Table 9 Type key

MUB/T

042 400 DV

Motor type

EC

Electronically commutated/1 phased or 3 phased

E2

2 poled/controllable by frequency converter/1 phased

E4

4 poled/controllable by frequency converter/1 phased

DV

4 poled voltage controllable/3 phased

D4

4 poled/controllable by frequency converter/3 phased

D6

6 poled/controllable by frequency converter/3 phased

Impeller Diameter

Size

Fan type

MUB

Multibox

MUB/T Multibox — high temperature

MUB/T-S Multibox — high temperature/inline airflow direction

MUB-CAV/
VAV

Multibox — constant air volume/variable air volume

MUB/F Multibox — smoke extraction fan

| 007

Accessories

|

9

7 Accessories

Note:

For details of the accessories, please check our online catalog or contact Systemair.

Table 10 Accessories MUB, MUB/T, MUB/T-S, MUB-CAV/VAV

1

2

3

4

5

6

4

3

1

1

FGV

Flexible connection

2

WSG*

Weather protection grille

3

UGS

Transition connections, square to
round

4

Tune­AHU

Damper

5

WSD**

Weather protection roof

6

MUB

Multibox

* 8.6 Weather protection grille (WSG), page 14

** 8.5 Weather protection roof (WSD), page 13

Table 11 Accessories MUB/F

1

2

3

4

5

1

RSA

Silencer

2

EVH

Flexible connection

3

LRK

Air-operated damper

4

GFL

Counter flange

5

WSD**

Weather protection roof

** 8.5 Weather protection roof (WSD), page 13

| 007

10

| Installation

8 Installation

8.1 Safety information

Danger: Risk that MUB/F does not work in case of fire.

♦ Use installation material with fire resistance classes that meet temperature requirements.

Warning: Danger from falling fan or fan parts.

♦ Check the surface before installation for load bearing capacity.
♦ Consider all static and dynamic loads when selecting hoisting equipment and fastening components.

General safety information

♦ Installation may only be carried out by adequately qualified persons, details see Table 1 Qualifications, page 1.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,

page 2.

♦ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
♦ Do not dismantle or circumvent safety elements, or put them out of function.
♦ Move the impeller of the fan by hand before you install it in order to check that it moves freely.
♦ Provide contact and intake protection and ensure safety distances according to DIN EN ISO13857 and DIN 24167-1.
♦ Use vibration dampers to prevent vibration transmissions. For example, article #37324 in our accessory range.
♦ Prevent the possibility of foreign bodies being drawn in.
♦ To reduce transmission of vibration to the duct system, we recommend flexible connections from our accessory

range, see chapter Accessories.

8.2 Preconditions

♦ Ensure that the fan and all its components are

undamaged.

♦ Ensure that there is enough space to install the fan.
♦ Protect against dust and moisture when installing.

♦ Ensure that the information on the name plates (fan

and motor) matches up with the operating conditions.

♦ Fit the fans in such a way that there is sufficient

access for troubleshooting, maintenance and repair.

Important

Overheating motor

♦ The installation distance must correspond to the adjacent image when the motor is aligned as implied. If

the motor protrudes out of the housing, the distance between other motors or a wall has to be 2 X A.

♦ As well as adhering to the maximum ambient temperature (see fan data sheet), care must be taken that

the ventilation for the motors is sufficient. Trapped heat must be avoided at all costs.

Distance to a wall

Distance to a MUB

2 x A

A

A

2 x A

| 007

Installation |

11

Important

Damage to the bearings or other parts of the fan can occur.

♦ Do not place a duct bend directly before or after the fan!
♦ Ensure a smooth and constant air flow to the device. Ensure a free exhaust. See Fig. 1 Straight ducts,

page 11.

• Rectangular duct system: D = Hydraulic diameter • Round duct system: D = Nominal diameter

Ø D

min.

2,5x Ø D

min.

2,5x Ø D

Fig. 1 Straight ducts

8.3 Installation variations

MUB/T, MUB/T-S

Important

Damage to the fan if condensation water cannot drain.

♦ Ensure that the drain plug is always at the lowest point of the fan to ensure that the condensation water

can drain.

MUB, MUB/F

The installation is possible in any mounting position.

| 007

12

| Installation

8.4 Changing the discharge direction

Important

An inline airflow direction is not possible
with a MUB/T. This application can be
implemented with a MUB/T-S

MUB/T

1.

2.

3.

Legend

1. MUB/T with airflow direction 90° upwards
(factory assembly)

2. MUB/T with airflow direction 90° sideways

3. Change of airflow direction

As a default, the Multiboxes have been designed
for an inline airflow direction. The airflow can be
changed from inline to 90° by replacing the side
panels.

MUB

1.

2.

3.

Legend

1. Multibox with inline airflow direction (factory
assembly)

2. Multibox with 90° airflow direction

3. Change of airflow direction

| 007

Installation |

13

8.5 Weather protection roof (WSD)

Important

Damage to the motor due to moisture.

♦ Only install outdoors with the weather protection roof from our accessory range, see chapter

Accessories.

♦ Install the weather protection roof as described below.

1

2

3

4

5

6

1

Weather protection roof

(WSD)
2 Cap nut
3

Double facets ring
4

Double facets ring
5

Distance bolt
6

Clinch nut

| 007

14

| Installation

8.6 Weather protection grille (WSG)

Note:

For reasons of space there are two versions of Weather protection grille (WSG) existing, a standard version
and a “turned” version. Please chose the correct WSG for your Multibox from the Systemair online
catalogue.

Standard version

B

B

1

2

3

4

5

1

Catch nut

2 Cap nut
3

Double facets ring

4

Double facets ring

5

Distance bolt

“Turned” version

1

Self-drilling screw

C

C

1

2

5,5 mm

2

Microcellular rubber

Note:

The microcellular rubber (included with the delivery of WSG 025 MUB/T complete) with a height of 12 mm
has to be used for size 025.

| 007

Installation |

15

8.7 Assembly/Disassembly impeller — Internal rotor motor

If an external rotor motor is used, the motor and impeller can`t be seperated.

Important

Damage to the motor and impeller.

The ball bearing of the motor and the balanced impeller may be damaged by forceful impacts.

♦ Attach the impeller and/or the shaft extension to the shaft or the rotor without forceful impacts.

♦ Do not separate the impeller and the hub. They were balanced as one unit by Systemair.

Note:

The hub can be heated for easier assembly and disassembly, for example with a hot-air blower.

• Precondition for assembly: the wedge is in the intended groove.

• Tools: hexagon socket wrench and suitable tool for removal, torque wrench for the taper clamping bush.

1

2

3

4

5

6

6

87

1 Motor
2

Motor shaft
3

Sleeve (not available

at every fan)
4

Shaft extension (not

available at every

fan)
5

Hexagon socket

screw
6

Impeller
7

Steel hub
8

Aluminium hub

| 007

16

| Installation

The hub is shown without impeller due to better lucidity.

Disassembly

1. Aluminium hub 1. Steel hub

2. 3. 4.

1.

2.

1.

2.

Assembly

1. 2. 3. 4.

5. Aluminium hub

=

Use screw locking

2.

1.

The set screw must
push on the wedge

of the shaft.

Use screw locking

5. Steel hub 6. Steel hub

Tighten the screws

slightly

Tighten the two

screws evenly with

the tightening torque

according to table

12.

Table 12 Tightening torques for various types of bush

Type of bush

1008 1108 1210 1215 1310 1610 1615 2012 2517 3020

Tightening
torque [Nm]

5.7 5.7 20 20 20 20 20 31 49 92

| 007

Electrical connection |

17

9 Electrical connection

9.1 Safety information

Warning: Danger from electrical voltage!

♦ Observe the 5 rules of electrical safety, see 2.3 5 rules of electrical safety, page 2.
♦ Prevent the ingress of water into the connection box.
♦ Electrical connection may only be carried out by adequately qualified persons, details see Table 1 Qualifications, page

1.

♦ Observe and respect local conditions, regulations and laws.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,

page 2.

Warning: Danger due to electrostatic influence on medical implants!

♦ Persons with medical implants should keep enough distance to the according devices.

9.2 Preconditions

♦ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
♦ Safety elements may not be dismantled, circumvented or deactivated.
♦ Install a circuit breaker in the permanent electrical installation, with a contact opening of at least 3 mm at each pole.

9.3 Connection

♦ Check if the data on the nameplate matches the

connection data.

♦ Complete the electrical connection according to the

circuit diagram.

♦ Lay the connection cables in the terminal box in such

a way that allows the cover of the terminal box to be
closed without resistance.

♦ Use all of the locking screws.

♦ Insert the screws by hand to avoid damaging the

thread.

♦ Tighten all glands well in order to guarantee

protection class IP.

♦ Screw the lid of the terminal box/inspection switch

evenly tight.

♦ Connect the cable end in a dry environment.

9.4 Cable bushing panel

If a cable bushing through the panel is needed,
please pay attention to the following notes and
instructions, see adjacent picture.

♦ Perform all work steps in the following notes

and instruction on both sides of the double­walled panel.

♦ Deburr the bore holes to avoid damaging the

cable.

♦ We recommend using stepped rubber to avoid

damaging the cable (available at Systemair,
article no. 313521).

Detailansicht

1.

2.

3.

Detailansicht

20 mm

20 mm

9.5 Protective grounding wire

The protective grounding must have a cross-section equal to or greater than that of the phase conductor.

| 007

18

| Electrical connection

9.6 Residual current circuit breaker

All-current-sensitive residual current circuit breakers are required for use in alternating-current systems with 50/60 Hz,
in combination with electronic devices such as EC motors, frequency converters or uninterruptible power supplies
(UPS).

9.7 Protecting the motor

Note:

In fans equipped with an EC motor, there is no additional motor protection needed. The motor protection is
integrated in the electronics of the motor.

Warning

Fan switches off in case of fire.

The motors of the MUB/F have no motor protection fitted as standard. Any kind of motor protection must be
bypassed in case of fire.

Important

Damage to motor due to overcurrent, overload or short circiut.

♦ Lead-out temperature monitors must be integrated in the control circuit in such a way that, if a fault

occurs, the motor cannot switch on again automatically after it has cooled down.

♦ Motor lines and temperature monitor lines should be laid separately on principle.
♦ Without thermal protection: Use a motor protection switch!

9.8 Variable-speed fans

Warning

Resonant frequencies may result in increased vibration in certain speed ranges. These vibrations may
destroy components.

♦ Only operate the fan outside these speed ranges.
♦ Skip over these speed ranges.
♦ Pass through these speed ranges so quickly that any vibration cannot exceed the admissible resonant

frequency values.

♦ Observe the operating instructions of the frequency converter.

Caution

Damage as a result of incorrect commissioning of the frequency converter.

♦ Install the fan and frequency converter as near as possible to one another.
♦ Use shielded cables.
♦ All components (fan, frequency converter and motor) must be grounded.
♦ We recommend using all-pole sinus filters.
♦ Avoid running the fan via the frequency converter below 10 Hz.
♦ Heating of the motor due to use of a variable frequency drive must be checked in the application by the

customer.

♦ Never exceed the maximum impeller rotation speed indicated on the name plate of the fan.

| 007

Commissioning

|

19

10 Commissioning

Warranty claims can only be made if commissioning work is carried out correctly and written evidence thereof is
provided.

It is recommended to fill out the commissioning report 19 Commissioning Report, page 25.

10.1 Safety information

♦ Commissioning may only be carried out by adequately qualified persons, details see Table 1 Qualifications, page 1.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,

page 2.

10.2 Preconditions

♦ Installation and electrical connection have been

correctly performed.

♦ Residual material from installation and foreign objects

have been removed from the fan and ducts.

♦ Inlet and outlet are free.
♦ Safety devices have been fitted.

♦ Ground cable is connected.
♦ Cable glands are tight.
♦ Nominal current (from the name plate) is not

exceeded.

♦ Data on the name plate corresponds with the

connection data.

10.3 Tests

♦ Before switching the fan on, check for externally visible damage and ensure that the protective equipment functions

properly.

AC motor EC motor

1. Switch the fan on.

2. Checks:

♦ Direction of rotation/conveyance. The direction of

rotation always applies looking at the impeller.

• The direction of rotation is best observed just
before the fan stops.

♦ Smooth running (any vibrations and noise)
♦ Current consumption

♦ Compare the current consumption with the

nominal consumption on the name plate.

♦ Tightness of all connections

3. Switch the fan off.

When the mains are switched on, the motor starts an
initialization (a few seconds). After the initialization the
control input is active.

1. Switch the fan on via the control input.

2. Checks:
♦ Direction of rotation/conveyance. The direction of

rotation always applies looking at the impeller.

• The direction of rotation is best observed just
before the fan stops.

♦ Smooth running (any vibrations and noise)
♦ Current consumption

♦ Compare the current consumption with the

nominal consumption on the name plate.

♦ Tightness of all connections

3. Switch the fan off via the control input.

| 007

20

|

Operation

11 Operation

11.1 Safety information

Warning: Hazard from electrical voltage or moving components.

♦ The device may only be operated by adequately qualified persons, details see Table 1 Qualifications, page 1.
♦ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.

11.2 Preconditions

♦ Ensure access only to persons who can safely handle the device.
♦ Only use the fan in accordance with the operating instructions and the operating instructions for the motor.
♦ Do not dismantle or circumvent safety elements, or put them out of function.

12 Troubleshooting/maintenance/repair

12.1 Safety information

♦ Troubleshooting/maintenance/repair may only be carried out by adequately qualified persons, details see Table 1

Qualifications, page 1.

♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,

page 2.

♦ Observe the 5 rules of electrical safety, see 2.3 5 rules of electrical safety, page 2.
♦ Abide by the system-related conditions and requirements of the system manufacturer or plant constructor.
♦ The impeller must be at a standstill.

12.2 Troubleshooting

Table 13 Troubleshooting

Problem Possible causes

Remedy

Fan does not run
smoothly

Impeller imbalance

Rebalancing by a specialist company if possible,
otherwise contact Systemair.

Soiling on the impeller Clean carefully, rebalance

Material decomposition on the
impeller due to aggressive
material conveyed.

Contact Systemair

Impeller rotates in wrong
direction.

Change direction of rotation if possible, otherwise contact
Systemair.

Deformation of impeller due to
excessive temperature.

Ensure that the temperature does not exceed the certified
value/Install new impeller.

Vibrations, oscillations

Check the installation of the fan/check the duct system,
see 8 Installation, page 10.

Air output of fan too
low

Impeller rotates in wrong
direction.

Change direction of rotation if possible, otherwise contact
Systemair.

Wrong wiring configuration (e.g.
Y instead of Delta).

Check and possibly correct the wiring configuration.

Pressure losses too high. Optimize the line routing.

Flow regulators not or only
partly open.

Check opening position on site.

Intake or pressure ducts are
blocked.

Remove the blockage.

Grinding sounds
when starting or
operating the fan

Check if the duct connections of
the fan are strained.

Loosen the duct connections and realign it.

| 007

Troubleshooting/maintenance/repair |

21

Troubleshooting cont'd

Thermal contacts/
resistors have
triggered

Impeller rotates in wrong
direction.

Change direction of rotation if possible, otherwise contact
Systemair.

Missing phase

In case of a 3 phase standard motor (not EC), check if all 3
phase are present.

Motor overheated

Check the cooling impeller (if used), measure the motor
winding (if possible) / contact Systemair.

Capacitor (if used) not or not
correctly connected.

Connect the capacitor correctly.

Motor blocked

Contact Systemair

Fan does not reach
nominal speed

Defective motor winding Contact Systemair

Improperly aligned drive motor

Contact Systemair

Control units (if used) such as
frequency converter or
transformer are set incorrectly.

Correct the settings of the control units.

Mechanical blockage Remove the blockage.

Motor does not
rotate

Faulty supply voltage Check the supply voltage, re-establish the voltage supply.

Faulty connection

Disconnect from the power supply, correct the
connection, see circuit diagram.

Temperature monitor has
responded.

Allow the motor to cool down, find and resolve the cause
of the fault.

Electronics/motor
overheated

Insufficient cooling Improve cooling.

Overloaded motor

Check if the correct fan is used for your application.

Ambient temperature too high Check if the correct fan is used for your application.

Note:

For all other damage/defects, please contact Systemair. Defective safety-relevant fans (for Ex and smoke
extraction applications) must be replaced completely.

| 007

22

| Troubleshooting/maintenance/repair

12.3 Maintenance

Warranty claims can only be made if maintenance work is carried out correctly and written evidence thereof is
provided.

We recommend regular maintenance intervals to ensure continuous fan operation. These maintenance intervals are
specified in the “Activities” table below. In addition, the operator must carry out follow-up activities such as cleaning,
replacing defective components or other corrective measures. For traceability reasons, a maintenance plan must be
created which documents the work carried out. This must be created by the operator. If the operating conditions are
"extreme", the maintenance intervals must be reduced so that maintenance is carried out more frequently. Examples
of extreme operating conditions:

• Kitchen exhaust fans

• Ambient temperature > 40 ºC or < -10 ºC, or temperature fluctuations > 20 K

Table 14 Activities

Normal operating

conditions

Extreme operating

conditions

Activity

Every six

months

Annually Quarterly

Every six

months

Check the fan and its components for visible damage,
corrosion and contamination.

X X

Check the impeller for damage and imbalance.

X X

Check the condensate drain is working correctly.

X X

Clean the fan/ventilation system (see 13 Cleaning, page

23).

X X

Check the screwed connections for damages/defects and
check that they are firmly seated.

X

See normal operating

conditions

Check the fan intake is free from contamination.

X X

Check that the fan and its components are being used
correctly.

X

See normal operating

conditions

Check the current consumption and compare this with the
rated data.

X X

Check the vibration dampers (if used) are working
correctly and check for visible damage and corrosion.

X

See normal operating

conditions

Check the electrical and mechanical protective equipment
is working correctly.

X

See normal operating

conditions

Check the fan’s rating plate is legible.

X X

Check the connection clamps and screwed cable
connections for damage/defects, and check that they are
firmly seated.

X

See normal operating

conditions

Check the flexible connectors for damage.

X

See normal operating

conditions

Note:

For all other damage/defects, please contact Systemair. Defective safety-relevant fans (for Ex and smoke
extraction applications) must be replaced completely.

12.4 Spare parts

♦ Use original spare parts from Systemair only.
♦ When ordering spare parts, please specify the serial number of the fan. This can be found on the name plate.

| 007

Cleaning |

23

13 Cleaning

13.1 Safety information

♦ Cleaning may only be carried out by adequately qualified persons, details see Table 1 Qualifications, page 1.
♦ Wear protective equipment during all work in the vicinity of the fan, details see 2.2 Personal protective equipment,

page 2.

♦ Observe the 5 rules of electrical safety, see 2.3 5 rules of electrical safety, page 2.
♦ The impeller must be at a standstill.

13.2 Procedure

Important

Keeping the fan clean extends its service life.

♦ Install a filter monitor.
♦ Do not use steel brushes or sharp-edged objects.
♦ Do not use a high-pressure cleaner (steam jet cleaner) under any circumstances.
♦ Do not bend the fan blades when cleaning.
♦ When cleaning the impeller, pay attention to balance weights that have been positioned
♦ Keep the airways of the fan clear and clean them if necessary with a brush.

14 Deinstallation/dismantling

Deinstall and dismantle the fan in reverse order of installation and electrical connection.

15 Disposal

♦ Ensure material is recycled. Observe national regulations.
♦ The device and the transport packaging are predominantly made from recyclable raw materials.
♦ Disassemble the fan into its components.
♦ Separate the parts according to:

• reusable material

• material groups to be disposed of (metal, plastics, electrical parts, etc.)

| 007

24

| EU Declaration of conformity — Multibox

16 EU Declaration of conformity — Multibox

The manufacturer: Systemair GmbH

Seehöfer Straße 45
97944 Boxberg
Germany

Product designation: Multibox

Type designation: MUB, MUB EC, MUB—CAV/VAV

Since year of manufacture:

2016

The manufacturer declares that the above mentioned products in their design and construction and the version
marketed by us complies with the harmonization legislation listed below:

EU directives: 2006/42/EC Machinery directive

2014/30/EU Directive electromagnetic compatibility (EMC)

2011/65/EU RoHS directive

2009/125/EC ErP guidelines

Regulations: 1253/2014 Only for ventilation units above 30W

17 EU Declaration of conformity — Thermo fans

The manufacturer: Systemair GmbH

Seehöfer Straße 45
97944 Boxberg
Germany

Product designation: Thermo fans

Type designation: AxZent; KBT; KBR; MUB-K; MUB/T; MUB/T-S; MUB/T EC; MUB/T-S EC; DVN; DVN EC;

DVNI; DVNI

Since year of manufacture:

2016

The manufacturer declares that the above mentioned products in their design and construction and the version
marketed by us complies with the harmonization legislation listed below:

EU directives: 2006/42/EC Machinery directive

2014/30/EU Directive electromagnetic compatibility (EMC)

2011/65/EU RoHS directive

18 EU Declaration of conformity — Smoke extract fans

The manufacturer: Systemair GmbH

Seehöfer Straße 45
97944 Boxberg
Germany

Product designation: Smoke extract fans

Type designation: KBR/F; MUB/F

Since of manufacture:

2016

The manufacturer declares that the above mentioned products in their design and construction and the version
marketed by us complies with the Harmonization legislation listed below:

EU directives: 2006/42/EC Machinery directive

2014/30/EU Directive electromagnetic compatibility

(EMC)

2011/65/EU RoHS directive

| 007

Commissioning Report

|

25

19 Commissioning Report

Warranty claims can only be made if commissioning work is carried out correctly and written evidence thereof is
provided.

Fan

Description:

Article no.: Manufacturing order no.:

Installer

Company: Contact person:

Company address:

Tel. no.: Email:

Operator (Place of installation)

Company: Contact person:

Company address:

Tel. no.: Email:

Type of connection

Yes No

Directly to mains

□ □

0-10 V signal (EC motor)

□ □

via contactor control

□ □

Transformer

□ □

Frequency converter

□ □

Sinus filter

□ □

Shielded cables

□ □

Motor protection

Yes No

Motor protection switch or motor protection relay

□ □

PTC resistor

□ □

Resistance value [Ω]:

Thermal contact

□ □

Electrical motor protection

□ □

Others:

Functional check

Yes No

Impeller easily rotatable (by hand)

□ □

Rotation direction acc. to directional arrow

□ □

Nominal data - Fan (name plate on fan housing)

Voltage [V]: Current [A]:

Frequency [Hz]: Power [kW]:

Fan impeller speed [rpm]:

Measured data at commissioning

Voltage [V]: Temp. of transported air [°C]:

Current L1 [A]*:

Fan impeller speed [rpm]:

| 007

26

|

Commissioning Report

Current L2 [A]: Air volume [m3/s]:

Current L3 [A]:

Differential pressure [Pa]*:

*For single-phase fans, fill in line “Current L1 [A]” *Δ- Pressure between suction-side and discharge of the fan

If an air flow measurement is not possible, this value can be calculated using the following formula:

X

=

Duct cross-section [m²]

Flow speed [m/s]

Grille measurement acc. to VDI 2044

Air volume [m³/s]:

Yes No

Commissioning of the fan successful?

□ □

Date, installer's signature

Date, operator's signature

| 007

| 007

Multibox · Installation and Operating Instructions · · en_GB · 2018-10-08 · 007

Systemair GmbH
Seehöfer Str. 45

97944 Boxberg
Germany

Tel.: [phone]
Fax: [phone]

[e-mail]
www.systemair.de