System air DVS series User manual

Contents
1 General information..............................................30
1.1 List of information ........................................................30
1.2 Notes on the documentation.....................................30
2 Important safety information..............................31
2.1 Safety notes...................................................................31
2.2 Personnel .......................................................................31
2.3 Intended use..................................................................31
2.4 Incorrect use..................................................................31
3 Warranty................................................................32
4 Delivery, transport, storage.................................32
4.1 Delivery ..........................................................................32
4.2 Transport ........................................................................32
4.3 Storage............................................................................32
5 Description.............................................................33
5.1 DVS/DVSI/DHS series...................................................33
5.2 DVN/DVNI series...........................................................38
5.3 Technical data ...............................................................41
5.4 Type key .........................................................................41
5.5 Safety devices...............................................................41
5.6 Motor data .....................................................................42
6 Installation.............................................................43
6.1 Safety information .......................................................43
6.2 Preconditions for installation.....................................43
6.3 Assembly information.................................................43
6.4 Shaft extensions (Types DVN/DVNI)........................44
7 Electrical connection.............................................45
7.1 Operation of the fans on a frequency inverter......46
7.2 Protect the motor .........................................................46
7.3 Connection of thermal protection.............................46
8 Commissioning ..................................................... 46
8.1 Preconditions.................................................................46
8.2 Commissioning..............................................................47
9 Operation ...............................................................47
9.1 Safety notes...................................................................47
9.2 Operating conditions ...................................................47
9.3 Operation/use ...............................................................48
9.4 Resetting the thermo-contacts.................................48
10 Maintenance/troubleshooting.............................49
10.1 Preconditions.................................................................49
10.2 Faults and troubleshooting.........................................49
10.3 Cleaning ..........................................................................50
10.4 Maintenance, service...................................................50
10.5 Spare parts.....................................................................50
11 Uninstalling/dismounting.....................................51
12 Disposal..................................................................51
12.1 Disposal of the fan .......................................................51
12.2 Disposal of packaging..................................................51
13 Declaration of Conformity ....................................52
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Roof fans - V 1.0

1 General information
1.1 List of information
DANGER
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 potentially leads to death or to serious bodily harm.
CAUTION
Hazard with a low risk
Failure to comply with this warning potentially leads to death or to serious bodily harm.
ATTENTION
Hazard with risk of property damage
Failure to comply with this warning leads to property damage.
NOTE
Useful information and notes
1.1.1 Safety symbols
General hazard symbol Hazard of fi re or explosion!
Electrical voltage! Risk of burning
1.1.2 List of instructions for action
Instruction for action Instruction for action with fi xed order
Carry out this action.. 1. Carry out this action..
(if applicable, further action) 2. Carry out this action.
3. (if applicable, further action)
1.2 Notes on the documentation
WARNING
Hazard as a result of improper dealing with the fan
These operating instructions describe safe use of the fan.
»Read the operating instructions carefully!
»Keep the operating instructions and other valid documents such as electrical connection plan or motor instructions
with the fan. They must permanently be available at the place of use..
30
General information
Roof fans - V 1.0

2 Important safety information
2.1 Safety notes
Designers, installers and operators are responsible for the proper mounting and intended use.
• As the operator, please ensure that the valid directives are complied with.
• Only use the fan in a proper condition.
• Provide generally prescribed electrical and mechanical protective devices.
• During mounting, commissioning, maintenance and control, secure the place of mounting and the premises for possible preparations
against unauthorised access.
• Observe rules for safe work.
• Safety components must not be bypassed or put out of function.
• Keep all the warning signs on the fan complete and readable.
• Regularly instruct the personnel about safety-conscious behaviour.
NOTE
We have carried out a risk assessment for the fans. However, it can only apply to the fan itself. After in-stallation of
the fan, we recommend to carry out a risk assessment for the whole system. In this way, you have the guarantee
that there is no risk potential from the system.
2.2 Personnel
2.2.1 Mounting personnel
• Mounting may only be carried out by trained, qualifi ed personnel.
2.2.2 Work on the electrical equipment
• Work on the electrical equipment of the fan may only be done by a qualifi ed electrician or electrotechnically educated person. This
person must know the relevant safety rules to recognise and avoid potentially risks.
2.2.3 Personnel for operation, use, maintenance and cleaning
• Operation, use, maintenance and cleaning may only be carried out by trained and authorized personnel. The operating personnel
must have appropriate knowledge about handling with the fan. In the case of a malfunction or an emergency they must react cor-
rectly and adequately.
2.3 Intended use
The fans are intended for installation in ventilation systems. They can be installed either in duct systems or as a free sucking fan over
a nozzle and a sucking side protection grid. A free blow-out and/or suction device via a contact-protection grid is possible following
consideration in the design.
• The fans are suitable for extraction of clean air, air with a low dust and grease content, media up to max. density of 1,3 kg/m³.
• The maximum permissible operating data on the name plate apply for an air density ρ = 1,2 kg/m³ (sea level) and a maximum air
moisture of 80 %.
• The fans are suited for the ambient and conveying agent temperatures stated on the name plate.
2.4 Incorrect use
Above all, the incorrect use means using the fan in a way other than that described. The following points are incorrect and hazardous:
• Extraction of explosive and combustible media
• Conveying of liquids
• Extraction of aggressive, dust or grease containing media
• Operation in an explosion hazardous atmosphere
• Operation without duct system or protective guard
• Operation with the air connections closed
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Roof fans - V 1.0
Important safety information

3 Warranty
Warranty for our products shall be based on the contractual stipulations, our quotations and also as a supplement our General Terms
and Conditions of Business. Warranty claims shall presuppose that the products are connected properly, operated and used in accord-
ance with the data sheets and are also maintained as required.
4 Delivery, transport, storage
4.1 Delivery
Each device leaves our plant in an electrically and mechanically proper condition. The fans are on pallets. We recommend to transport
them to the installation site in original packaging.
CAUTION
Danger from cutting edges!
»Wear protective gloves when unpacking.
Check delivery
Check the fan for obvious defects, which can impair safe operation.
 First of all, pay attention for defects on the connection cable, terminal box and rotor, cracks in the housing, missing rivets,
screws or covering caps.
4.2 Transport
WARNING
Hazard of impact if the fan falls down!
»Transport the fan carefully and with appropriate hoisting device!
»Wear a safety helmet and safety goggles!
WARNING
Electrical hazard from damaged connection cable or connections
»Do not use the connection cable, terminal box or rotor for transport.
Transport and unload the pallet carefully.
Transport the fan either in the original packaging or on the provided transport devices (lifting eyes) with appropriate hoisting
devices.
When unpacking the fan, only lift it on the base frame.
At manual transport observe allowed human lifting or carrying forces (see weight on the name plate).
Avoid impacts and distortion of the base plate and other parts of housing.
4.3 Storage
CAUTION
Hazard due to loss of function of the motor bearings!
»Avoid storing for too long time (recommendation: max. 1 year).
»Turn the rotor manually every three months, wear safety gloves.
»Before installation, check proper function of the motor bearings
Store the fan in the original packaging dustproof, dry and protected against weather.
Avoid effects of extreme heat or cold.
32
Warranty
Roof fans - V 1.0

5 Description
Systemair roof fans are available to you in numerous versions, which means that you can make an optimum selection for your indi-
vidual case of use. Extremely robust and long-living, they ensure reliable waste air solutions in various buildings. You can put your
tailor-made ventilation system together with our large range of accessories.
5.1 DVS/DVSI/DHS series
• Voltage-controllable
• Low sound level
• Operationally safe and maintenance-free
• DVS, DHS and DVSI fans have been equipped with backward-bent radial blades and external rotor motors.
For operation of the DVS/DHS/DVSI fans on a frequency inverter, an all-pole sine fi lter is to be used! The motors have been suspended
free of vibrations.
DVS/DHS/DVSI ...EZ / EV / ES: 1~ motor 2-phase operation possible.
DVS/DHS/DVSI ...E4: Designed for 1-phase operation.
DVS/DHS/DVSI ...DV / DS: 3~ 2-phase operation possible via Y/D circuit.
The motors of the DVS/DHS/DVSI fans up to size 311 possess integrated thermo-contacts with automatic and also manual reset pursu-
ant to EN 60335-2-80 as overheating protection. Fans from size 355 have integrated thermo-contacts with fi nished lines for connec-
tion to a motor protection device. The housing comprises salt water-proof aluminium, the base frame powder-coated, galvanised sheet
steel. On the base frame with deep-drawn admission nozzle, a bird protection grid of powder-coated, galvanised sheet steel has been
fi tted. The rotors are made of polyamide PA6 25 GV up to size 355, from size 400 of aluminium.
DVS models possess a vertical blow-out.
DVSI models have been sound-protected with mineral wool 50 mm in thickness.
Fig. 22: Example DVS Fig. 23: Example DVSI
Fig. 24: Example DHS 190 - 500 Fig. 25: Example DHS 560 - 710
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Roof fans - V 1.0
Description

5.1.1 Installation arrangements
NOTE
The following installation arrangements are also possible for the DVN and DVNI series.
1a
2
4
7
8
1b
2
3
5
8
6
7
Fig. 26: Examples of the installation arrangement of a fan of the DVS/DVSI series, fi xed or hinged
Legend
1a DVS/DVSI Ventilator fi xed 6ASS Flexible connection
1b DVS/DVSI Ventilator hinged 7ASF Intake fl ange
2FTG Hinged frame 8FDS Flat roof base
3TDA Adaptor frame for hinged versions
4VKM Motor-driven shutter
5VKS Automatic shutter
34
Description
Roof fans - V 1.0

1
2
3
4
5
6
Legend
1DHS Fan
2VKS Automatic shutter
3SSD Base sound absorber
4ASK Intake chamber
5ASS Flexible connection
6ASF Intake fl ange
Fig. 27: Examples of the installation arrangement of a fan of the DHS series
5.1.2 Name plates
TYPE:
CAPAC INS.CL.
WEIGHT 25 kg
B
1070236
0,6/0,28 A
50 Hz400 D/Y V~
0,26/0,17 kW
1300
IP44
DVS 355DV
5710 2012-09-28
min¹
//
MADE IN GERMANY
/970
1
3
4
5
6
2
TYPE:
CAPAC INS.CL.
WEIGHT 25 kg
B
1071870
0,6/0,28 A
50 Hz400 D/Y V~
0,26/0,17 kW
1300
IP44
DVSI 355DV
2354 2012-09-27
min¹
//
MADE IN GERMANY
/ 970
1
3
4
5
6
2
Fig. 28: Example, name plate DVS Fig. 29: Example, name plate DVSI
TYPE:
CAPAC INS.CL.
WEIGHT 21,5 kg
B
1072225
0,6/0,28 A
50 Hz400 D/Y V~
0,26/0,17 kW
1300
IP44
DHS 355DV
5707 2012-10-10
min¹
//
MADE IN GERMANY
/970
1
3
4
5
6
2Legend
1Type designation
2Article number/ production number/ date of manufacture
3 Voltage / frequency / motor output
4 Current / speed min./max. / output
5 Registration Ukraine, Russia / weight / protection class
6Capacity with 1~/ insulation class motor
Fig. 30: Example, name plate DHS
35
Roof fans - V 1.0
Description

5.1. 3 Dimensioned drawing of the DVS/DVSI fans
Fig. 31: Dimensioned drawing DVS und DVSI Fig. 32: Underside DVS/DVSI
5.1.4 Dimensions DVS
DVS A B C øD E F G H øI
190-225 370 295 170 213 335 245 105 6xM6 10 (4x)
310-311 560 470 330 285 435 330 146 6xM6 10 (4x)
355-400 720 618 390 438 595 450 200 6xM8 12 (4x)
450-500 900 730 465 438 665 535 237 6xM8 12 (4x)
560-630 1150 960 560 605 939 750 293 8xM8 14 (4x)
710 1350 1185 660 647 1035 840 320 8xM8 14 (4x)
Table 9: Dimensions of the DVS fans
5.1. 5 Dimensions DVSI
DVSI AB C øD E F G H øI
190-225 497 295 179 213 335 245 105 6xM6 10 (4x)
310-311 690 470 369 285 435 330 146 6xM6 10 (4x)
355-400 874 618 439 438 595 450 200 6xM8 12 (4x)
450-500 968 748 479 438 665 535 237 6xM8 12 (4x)
560-630 1315 960 605 605 939 750 293 8xM8 14 (4x)
710 1483 1185 729 674 1035 840 320 8xM8 14 (4x)
Table 10: Dimensions of the DVSI fans
36
Description
Roof fans - V 1.0

5.1.6 Dimensioned drawing of the DHS fans
Fig. 33: Dimensioned drawing of the DHS fans, squared Fig. 34: Dimensioned drawing of the DHS fans, round
Fig. 35: Underside DHS
5.1.7 Dimensions DHS
DHS øD E F G H øI J K L
190 - 225 213 335 245 105 6xM6 10 ø417 150 30
310 - 315 285 435 330 146 6xM6 10 ø540 250 30
355 - 400 438 595 450 200 6xM8 12 ø720 330 30
450 - 500 438 665 535 237 6xM8 12 ø830 490 30
560 - 630 605 939 750 293 8xM8 14 1100 535 30
710 647 1035 840 320 8xM8 14 1282 580 40
Table 11: Dimensions of the DHS fans
37
Roof fans - V 1.0
Description

5.2 DVN/DVNI series
The housing and the backward-bent radial blade comprise salt water-proof aluminium. The base frame with deep-drawn admission
nozzle has been made of galvanised sheet steel. Bird protection grid of powder-coated, galvanised sheet steel. The motors have been
suspended free of vibrations. 1-phase motors are speed-adjustable via a transformer in 1 phase, and 3-phase motors additionally
2-phase via a D/Y circuit excluded three-phase motors according to IE classifi cation, they are controllable only via frequency con-
verter!. As protection against overheating, the fans have thermo-contacts with fi nished lines for connection to a motor protection
device. The DVNI models are sound protected by mineral wool 50 mm in thickness.
DVN
Roof fans 120°C vertical blow-out: 3000-31500 m³/h, with backward-bent rotor blades, 1~ and 3~ versions
DVNI
Insulated roof fans 120°C vertical blow-out: 3000-31500 m³/h, with backward-bent rotor blades, 1~ and 3~ versions
Motors
The roof fans have been equipped with an effective motor protection via thermo-contacts. The DVS/DHS/DVN series from size 355
have fi nished thermo-contacts for connection to a motor protection device.
• Motor outside the airfl ow
• Conveying agent temperature up to
120°C
• Low sound level
• Operationally safe and maintenance-
free
• Extensive programme of accessories
• Vertical air throughfl ow
Fig. 36: Example DVN/DVNI up to 710 Fig. 37: Example DVN/DVNI 800 - 900
1
7
8
9
10
2
3
4
2
5
6Fig. 38: Example of an installation arrangement with accessories
Legend
1DVN/DVNI Fan 6ASF Intake fl ange
2VKS Automatic shutter 7FTG Hinged frame
3SSD Base sound absorber 8TDA Adaptor frame
4ASK Intake chamber 9VKM Shutter
5ASS Flexible connection 10 FDS Flat roof base
38
Description
Roof fans - V 1.0

5.2.1 Name plates
TYPE:
CAPAC INS.CL.
WEIGHT 49 kg
F
1071881
3,31 A
50 Hz400 Y V~
P2=1,5 kW
1430
IP55
DVN 500D4-IE2
32185 2012-10-04
min¹
//
MADE IN GERMANY
tF=120°C
5
1
3
4
6
7
2
TYPE:
CAPAC INS.CL.
WEIGHT 63 kg
F
1072157
3,31 A
50 Hz400 Y V~
P2=1,5 kW
1430
IP55
DVNI 500D4-IE2
33463 2012-09-28
min¹
//
MADE IN GERMANY
tF=120°C
1
3
4
6
7
2
Fig. 39: Example, name plate DVN Fig. 40: Example, name plate DVNI
Legend
1Type designation
2Article number/ production number/ date of manufacture
3 Voltage / frequency / motor output
4 Current / speed min./max. / output
5 Conveying agent temperature
6 Registration Ukraine, Russia / weight / protection class
7Capacity with 1~/ insulation class motor
39
Roof fans - V 1.0
Description

5.2.2 Dimensioned drawing of the DVS/DVSI fans
Fig. 41: Dimensioned drawing of fans DVN/DVNI
5.2.3 Dimensions DVN
DVN AB C øD E F G H øI J
355 - 400 720 618 600 390 438 595 450 200 12 (4x) 6xM8
450 - 500 900 730 675 465 438 665 535 237 12 (4x) 6xM8
560 - 630 1150 955 900 560 605 939 750 293 14 (4x) 8xM8
710 1350 1178 936 660 674 1035 840 320 14 (4x) 8xM8
800 - 900 1690 -1180 830 872 1255 1050 433 14 (4x) 8xM8
Table 12: Dimensions of the DVN fans
5.2.4 Dimensions DVNI
DVNI AB C øD E F G H I J
355 - 400 874 648 600 439 438 595 450 200 12 (4x) 6xM8
450 - 500 970 730 675 479 438 665 535 237 12 (4x) 6xM8
560 - 630 1315 1035 900 600 605 939 750 293 14 (4x) 8xM8
710 1483 1165 936 729 674 1035 840 320 14 (4x) 8xM8
800 - 900 1590 -1180 830 872 1255 1050 433 14 (4x) 8xM8
Table 13: Dimensions of the DVNI fans
40
Description
Roof fans - V 1.0

5.3 Technical data
DVS/DVSI DHS DVN/DVNI
Temperature range [°C]
Environment and conveying
material
see name plate
Voltage / current strength see name plate
Protection class see name plate
Dimensions see description
Weight see name plate
Rotor diameter see name plate
Sound level see fan data sheet
Table 14: Technical data of the fan
NOTE
Further technical data can be found in the data sheet of your fan.
5.4 Type key
DHS 500 D V A 2 IE2
IE2: International Effi ciency
High degree of effi ciency
Mechanical fi nish
Electrical fi nish
Number of poles (N/A in EC)
V: 4/4-poled variable motor,
S: 6/6- poled variable motor,
4: 4/4-poled
6: 6/6-poled
Motor class E: single-phase AC
D: three-phased current
Rotor diameter
Fan
DVS
DVSI
DHS
DVN
DVNI
Fig. 42: Type key
5.5 Safety devices
An internal thermo-contact with fi nished lines for connection to a motor protection device has been installed as an overheating pro-
tection for the motors.
41
Roof fans - V 1.0
Description

CAUTION
Property damage as a result of motor overheating
»The motor can overheat and be destroyed if the thermal relays/PTC have not been connected func-tionally.
»Thermal relays always connect to a motor protective device!
5.6 Motor data
The motor data can be found on the motor name plate and in the motor manufacturer's technical documents.
42
Description
Roof fans - V 1.0

6 Installation
6.1 Safety information
›Mounting may only be carried out by trained, qualifi ed personnel.
›Comply with the system-related conditions and the requirements of the system manufacturer or plant builder.
›Safety components, e.g. protective grids, may not be dismantled or circumvented or put out of function.
WARNING
Danger of impact from fan or parts of fans dropping!
»Check the base before installation for load capacity/strength.
»When selecting the hoisting device and fi tting material observe the weight, tendency to vibrations and shear
forces (weight information on the name plate).
»Wear helmet and protective goggles.
6.2 Preconditions for installation
• Place of installation protected against dust.
• The base or the roof fan must have been integrated into the roof waterproofi ng.
• For roof inclinations >5° an inclined roof base must be used.
• The minimum distance between the fans if a number of fans are being assembled is 1x rotor diameter.
6.3 Assembly information
WARNING
Risk of crushing in hinged fans by the hinged frame shutting!
›The hinged frame is very heavy because the fan wheel has been fi tted on it.
›Open and close the hinged frame carefully
In installation, do not distort the fan housing.
Install the fan such that no vibrations are transmitted to the channel system of the housing frame.
Pay attention to the direction of fl ow (arrows).
Provide for contact and intake protection and safety distances according to DIN EN 294 and DIN 24167-1.
Ensure uninhibited and constant infl ow into the appliance and free blow-out.
Ensure that the fan is installed fi rmly and stably.
6.3.1 Assembly
Examples of assembly can be found in the Description chapter.
Ensure secure access to the fan for maintenance and service.
Assemble the base frame on a level, fl at base (see prerequisites for assembly).
Assemble the fan at the corners of the base by means of 4 screws.
Seal the contact surface between the base frame and the base with cellular rubber or a foamed band.
Install connecting ducts and accessories.
Provide for contact/intake protection and safety distances according to EN ISO 13857.
NOTE
In some cases it is better to mount accessories before placing the fan on the roof base.
43
Roof fans - V 1.0
Installation

6.4 Shaft extensions (Types DVN/DVNI)
CAUTION
Damage to the motor and the rotor!
The ball bearings of the motor and the counterbalanced rotor may be damaged by forceful impacts in the assembly
of the rotor and/or the shaft extension.
›Attach the rotor and/or the shaft extension to the shaft or the rotor without forceful impacts.
NOTE
For easier assembly and dismantling, the hub can be heated, for example with a hot-air blower.
»Precondition for assembly: the wedge is in the groove provided for it.
»Tool: matching hexagonal wrench and suitable tool for removing, torque wrench for the taper clamping bush.
»
6.4.1 Shaft extension of steel
6.4.1.1 Dismantling
1. Loosen the two screws of the sleeve with the fi xed wrench.
2. Loosen the screw at the front of the motor shaft with the fi xed wrench.
3. Pull the shaft extension off with the removal tool.
6.4.1.2 Assembly on the shaft
1. Attach the shaft extension such that the sleeve is over the shaft extension so that it can be fi tted.
2. Tighten the two screws of the sleeve with the fi xed wrench.
3. Tighten the screw at the front of the motor shaft with the fi xed wrench.
4. Tighten the two screws of the sleeve with the fi xed wrench such that they push against the wedge of the shaft.
6.4.2 Rotor with screw-down hub of aluminium or steel hub
6.4.2.1 Dismantling
1. Loosen the two screws of the hub with the fi xed wrench.
2. Pull the rotor off at the intended place with the removal tool.
NOTE on dismantling screw-on hubs of aluminium
If the intended spot cannot be reached:
Break through the rated break point in the aluminium hub and attach the removal tool there.
6.4.2.2 Assembly
1. Place the rotor with aluminium or steel hub on the shaft without using force.
2. Tighten the two screws of the hub with the fi xed spanner.
Please consider the fact that the 2 fastening screws push against the straight side of the shaft extension if the shaft extension is
small.
6.4.3 Rotor with taper clamping bush
6.4.3.1 Dismantling
1. Loosen the two opposite screws with the fi xed spanner.
2. Screw one screw into the middle of the three threaded bores and remove the clamping bush from the shaft.
44
Installation
Roof fans - V 1.0

6.4.3.2 Assembly
1. Insert the clamping bush into the rotor.
2. Slightly tighten the two opposite screws.
3. Place the rotor on the shaft without using force.
4. Tighten the two screws evenly with the torque wrench with the tightening torque according to Table 7.
Type of bush 1008 1108 1210 1215 1310 1610 1615 2012 2517 3020
Tightening moment [Nm] 5,7 5,7 20 20 20 20 20 31 49 92
Table 15: Tightening moments for various types of bush
7 7. Electrical connection
NOTE
›The motors contain triple posistors. More than two PTC chains may not be switched in series, as this can lead to
undefi ned cut-outs.
›Maximum check voltage of PTC is 2,5 V.
WARNING
Hazard from electrical voltage!
» Electrical connection only by a trained electrician or trained and instructed qualifi ed personnel!
» Electrical connection in accordance with the valid regulations.
» Prevent the ingress of water into the connection box.
» Observe 5 safety rules for the electrical expert!
–disconnect from the power supply (all-pole),
–prevent switching on again,
–test absence of voltage,
–earthing and short-circuiting,
–protect adjacent live parts by covers and barriers.
You will fi nd the electrical connection plan on the base plate of the motor on in the terminal box.
 Bring about the electrical connection according to the connection plan.
CAUTION
Property damage as a result of motor overheating
»The motor can overheat and be destroyed if the thermal relays/PTC not been connected.
»Thermal relays/PTC always connect to a motor protective device!
»In motors without integrated thermal protection, motor protection devices are to be provided by the customer.
Connect the thermo-contacts/posistor connections to a motor protection switching device.
In cases of plastic terminal boxes, do not use any gland connections of metal.
Use suitable rubber sockets for cable ducts.
Lay the mains feed line through a bore from the outside.
Tighten the nuts of the cable ducts well in order to guarantee protection class IP68.
Screw the lid of the terminal box / repair switch evenly tight.
Additionally seal the lid screw connections of plastic terminal boxes with sealing putty.
45
Roof fans - V 1.0
7. Electrical connection

7.1 Operation of the fans on a frequency inverter
7.1.1 Frequency inversion with sine fi lter with all-pole effect
NOTE
Do not confuse the all-pole sine fi lters with motor fi lters (often also called damping or du/dt fi lters).
In external rotor motors, an all-pole sine fi lter has to be fi tted between the motor and the frequency inverter for operation on fre-
quency inverters. We recommend the use of sine fi lters with an all-pole effect for operation of all Systemair fans on frequency invert-
ers.
Sine fi lters with an all-pole effect provide sine-shaped output voltages phase to phase and phase to protective conductor coming close
to the requirements of DIN EN 61000, part 2-2.
If your regulate by a frequency inverter, install an all-pole sine fi lter between the motor and the frequency inverter (all-pole:
phase to phase, phase to earth).
7.1.2 Frequency inversion without a sine fi lter with all-pole effect
In frequency inverters without a sine fi lter with an all-pole effect, particular measures are necessary in the installation and connection
of the motors. These measures can be seen from the operating instructions from the manufacturer of the frequency inverter.
In speed control via frequency inverter, please remember that voltage peaks on the motor terminals must be less than 1000 V
and voltage increase velocities less than 500 V/μs (IEC 34-17).
If you have a long motor feed line, use an output fi lter between the frequency inverter and the motor.
7.2 Protect the motor
Avoid two-phase running:
At 3-phase motors, use an all-pole C- or K-safety cut-out (current consumption, see name plate). (Current con-sumption see name
plate).
7.3 Connection of thermal protection
 If motor provided with built-in thermal protection, it must be connected to a triggering device and/or a motor-protection device.
8 Commissioning
8.1 Preconditions
• • Mounting and electrical connection have been correctly performed.
• • Installation residuals and foreign objects have been removed from the fan and ducts.
• • Inlet and outlet are free.
• • The safety devices have been fi tted (protection against contact).
• • Grounding connected.
• • The thermo-contacts (temperature monitors) have been properly connected to the motor protective device.
• - The motor protective device is functional.
• - The thermal protection is functional.
• • The cable glands are tight.
• • Provided mains connection complies with the data on the name plate. Voltage tolerances are admissible pursuant to IEC 38
at a maximum of +6% or -10%. The nominal current may only exceed the nominal voltage by a maximum of 5 %.
• • Nominal current (from the name plate) does not exceed the mains data.
•
NOTE
If the speed is regulated by voltage reduction, the engine current can exceed the nominal current at low voltages. In
such a case, the motor coil is protected by thermo-contacts.
»However, make absolutely show whether a minimum static back pressure has been stated for the fan.
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Commissioning
Roof fans - V 1.0

8.2 Commissioning
WARNING
Hazard from electrical voltage!
»» Commissioning by trained and instructed qualifi ed personnel only!
Switch the ventilator on as planned.
WARNING
Hazard from bursting parts!
»When checking the direction of rotation, wear safety goggles.
Check:
–the direction of rotation / conveying. The direction of rotation always applies looking at the rotor. If the direction of rotation is
wrong, it must be turned by exchanging two phases.
–smoothly running (eventual vibrations and noise)
–current with appropriate instrument
–tightness of all joints
8.2.1 Safety elements
Check, if safety elements e.g. protective guards are fastened.
9 Operation
9.1 Safety notes
WARNING
Hazard from electrical voltage!
»The device may only be operated by persons
–instructed in function and risks,
–who have understood handling and can accordingly react.
»Ensure that children cannot operate or play with the device without supervision.
»Ensure access only to persons, who can safe handle the device.
9.2 Operating conditions
• Do not operate the fan in an explosion-hazardous atmosphere.
• During operation, touching the rotor must not be possible.
• Safety components must not be bypassed or put out of function.
• The fan may operate inside limits declared on the nameplate.
• Prevent suction of foreign particles, this can destroy the fan.
• Switching frequency:
–the fan is intended for S1 continuous duty!
–the controls may not permit any extreme switching duties!
• If the operational leakage current of 3.5 mA is exceeded, the conditions with a view to earthing pursuant to DIN VDE 0160/5.88.
ART.6.5.2.1 must be fulfi lled.
• Sound development can be reduced by using a sound fi lter..
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Roof fans - V 1.0
Operation

9.3 Operation/use
Only use the fan in accordance with this operating instruction and the operating instructions of motor.
Control the fan during operation for correct function.
Switch the fan off as planned.
WARNING
Hazard from electrical voltage and fl ying parts!
Errors occurring can lead to personal and/or property damage!
Switch the fan off as planned:
»In cases of a non-typical noise from bearings, vibrations, pressure pulsation.
»In case of overcurrent, overvoltage or temperature (nameplate)..
9.4 Resetting the thermo-contacts
9.4.1 Automatically resetting thermo-contact (TW)
If the automatically resetting thermo-contact triggers, the fan goes back into operation as soon as the motor has cooled down.
9.4.2 Thermo-contact to be reset manually (TB)
If the thermo-contact to be reset manually (TB) triggers:
Reset the thermo-contact (TB) by resetting the TK reset button on the motor with a pointed object (blow-out side of the fan).
Some fans have a small opening in the lid for this purpose.
9.4.3 Thermo-contact to be reset manually (SP1)
If the thermo-contact to be reset manually (SP1) triggers:
 Reset the thermo-contact (SP1) by stopping the current supply for about 10-60 minutes.
9.4.4 Fans with fi nished thermo-contacts (TK)
Reset fans with fi nished thermo-contact lines (TK) via the external motor protection switch.
NOTE
»Check whether the rotor is running freely.
»Get in touch with your supplier if the motor does not restart after examination and/or resetting of the motor pro-
tection.
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Operation
Roof fans - V 1.0