FläktGroup DC_9941GB_20180516_R0
Specifications are subject to alteration without notice
CENTRIFLOW 3D PLUG FAN WITH EC MOTOR
CONTENT PAGE
1. Importent information ........................................................................ 2
2. Saferty notes ......................................................................................... 2
3. Technical description ........................................................................ 2
4. Transport ................................................................................................ 3
5. Mounting instructions ........................................................................ 3
6. Commissioning .................................................................................... 5
7. Maingenance ......................................................................................... 5
8. Faults ....................................................................................................... 6
9. Spare parts ........................................................................................6
10. Distances ............................................................................................... 6
11. Air flow measurement ....................................................................6
12. Disposal of the product ..................................................................6
13. Declaration of conformity .............................................................. 7
INSTALLATION AND MAINTENANCE
CENTRIFLOW 3D PLUG FAN GMEC
Centriflow 3D GMEC - Installation and Maintenance
2
FläktGroup DC_9941GB_20180516_R0
Specifications are subject to alteration without notice
3. TECHNICAL DESCRIPTION
The fan is used to generate a desired air volume at a given pres-
sure rise that corresponds to the pressure losses in the duct
system to which the fan is connected, and internal losses inside
of the Air Handling Unit.
The plug fan is intended to be used inside of the Air Handling Unit.
3.1 DESIGN
IMPORTANT INFORMATION, SAFETY NOTES, TECHNICAL DESCRIPTION
1. IMPORTANT INFORMATION
FläktGroup fans comply with the requirements for health and
safety of the EC Machinery Directive.
All fans leave the factory after being subjected to testing.
These instructions are intended for use by professional service
staff. The installation, commissioning and operation of the fans
must be carried out by professional staff who are familiar with
the safety regulations.
Tools and protective equipment necessary for preventing acci-
dents from occurring while installing and operating the fan must
be used/worn in accordance with the local safety regulations.
All personnel involved with the product must carefully study this
operating manual and diligently comply with all orders and in-
structions.
FläktGroup does not accept responsibility for any damage that
can be attributed to non-observance of these instructions.
The warranty issued by the manufacturer will be forfeited if any
changes to the product are made without the manufacturer’s
consent.
2. SAFETY NOTES
This symbol is designed to point out all safety and
danger related information regarding danger on the
operating personnel’s lives and health.
3.2 OPERATING CONDITIONS
The standard operating temperature range of the fan is –20° C
- +40° C. The maximum permissible ambient temperature of the
motors is +40° C.
The fans are designed to be used as parts of equip-
ment. They are not ready for use as a stand-alone
product and the standard version does not have
protection against body contact, the appropriate
protective measures are to be taken according to EN
292/294.
Only operate the fan up to the maximum permissible speed given
in the information on the fan rating plate.
3.3 MOTORS
Centriflow 3D GMEC fans are supplied with high efficiency (IE4)
permanent magnet external rotor EC-motors. The high efficiency
is based on permanent magnets which eliminate rotor losses and
therefore less magnetizing current is needed.
Motors are equipped with integrated control electronics and
speed can be controlled by using either 0 - 10 V control signal or
input or the MODBUS-RTU interface for communication.
The impeller is fastened directly to the motor.
1. Front plate
2. Inlet cone
3. Impeller
4. Motor
5. Support bracket
51
2
3
4
Centriflow 3D GMEC - Installation and Maintenance
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FläktGroup DC_9941GB_20180516_R0
Specifications are subject to alteration without notice
TRANSPORT, MOUNTING INSTRUCTIONS
4 TRANSPORT
4.1 TRANSPORT INSPECTION
Check the fan immediately after you receive it and make sure that
it has not been damaged during transport. If you discover any
damage, get in touch with the transportation company without
delay. Briefly rotate the fan impeller to see that it rotates easily.
Check the information on the fan rating plate.
Proper procedures must be followed when transporting the product!
Faulty conditions in transporting may result in serious damage on
the product
4.2 TRANSPORT SAFETY
The transport material is to be selected according to the packag-
ing and the weight of the product. Loading must be carried out
as instructed.
4.3 INTERMEDIATE STORAGE
If the fan is to be stored before or in between uses, the following
needs to be taken in account:
– Original packaging is to be used. If the storage conditions re-
quire it, additional protection may be added
– The storage environment must be dry, dust-free and not have
a high level of humidity (<70%)
– Storage temperature must be in between –25°C and +40°C
Before commissioning, the respective instructions must be
studied thoroughly.
5 MOUNTING INSTRUCTIONS
5.1 HORIZONTAL WALL MOUNTING FROM THE OUTSIDE
OF THE FAN CASING - FAN SIZES 025-040
5.1.1 PREPARING THE FAN WALL
First make sure that the wall is rigid enough. There must be a
square hole and mounting screws symmetrically on the corners
of the hole. Verify that the dimensions are according to the
dimension table below. Make sure that the screw length is at
least 30 mm from the wall surface.
W
1
4xM8
W
2
Screw length 30
Sealing
Cables downwards
M8 nuts
Fan Size W2 ±3 W1 ±2Screws
025 320 350 4pcs. M8
028 320 350 4pcs. M8
031 435 450 4pcs. M8
035 435 450 4pcs. M8
040 435 450 4pcs. M8
5.1.2 MOUNTING PREPARATIONS
Before mounting of the fan prepare sealing on the wall closely
around the edges of the square hole. Sealing can be done by any
workable method, such as sealant mass, sealing tape, rubber
gasket etc. Sealing must be uniform all around. Make sure that
the cable glands are pointing downwards and the air flow meas-
urement tube is safely located i.e. not pressed between the front
plate of the fan and the wall. Tighten the fan on the wall.
Centriflow 3D GMEC - Installation and Maintenance
4
FläktGroup DC_9941GB_20180516_R0
Specifications are subject to alteration without notice
5.2 HORIZONTAL WALL MOUNTING INSIDE THE FAN
CASING - FAN SIZES 025-056
5.2.1 PREPARING THE FAN WALL
First make sure that the wall is rigid enough. There must be a cir-
cular hole and mounting screws symmetrically around the hole.
Verify that the dimensions are according to the dimension table
below. Make sure that the screw length is at least 30 mm from
the wall surface. Install sealing around the circular hole. Sealing
height must be over 15 mm (25 mm in case of size 056) from the
wall surface.
MOUNTING INSTRUCTIONS
Sealing; thickness >15mm
(>25mm for fan size 056)
M8
Screw length 30
W
1
W
2
ØD1
Fan sizes 025-040.
Fan sizes 045-056.
4 x M8 nuts
Cables downwards
5.3 VERTICAL MOUNTING - FAN SIZES 025-056
5.3.1 MOUNTING PREPARATIONS
Preparing the mounting surface. First make sure that the sur-
face is rigid enough. There must be a circular hole and mounting
screws symmetrically around the hole. Verify that the dimen-
sions are according to the dimension table below. Install sealing.
Sealing height must over 15 mm (25 mm in case of size 056)
from the surface.
Fan Size ØD1 ±3 W1 ±3 W2 ±2Screws
025 260 350 - 4 pcs. M8
028 300 350 - 4 pcs. M8
031 340 450 - 4 pcs. M8
035 380 450 - 4 pcs. M8
040 400 450 - 4 pcs. M8
045 450 580 290 8 pcs. M8
050 520 580 290 8 pcs. M8
056 570 710 355 8 pcs. M8
5.3.2 MOUNTING OF THE FAN
Before mounting make sure that the air flow measurement tube
is safely located i.e. not pressed between the front plate of the fan
and the mounting surface. Tighten the fan on the place.
Fan Size ØD1 ±3 W1 ±3 W2 ±2Screws
025 260 350 - 4 pcs. M8
028 300 350 - 4 pcs. M8
031 340 450 - 4 pcs. M8
035 380 450 - 4 pcs. M8
040 400 450 - 4 pcs. M8
045 450 580 290 8 pcs. M8
050 520 580 290 8 pcs. M8
056 570 710 355 8 pcs. M8
5.2.2 MOUNTING OF THE FAN
Before mounting make sure that the cable glands are pointing
downwards and the air flow measurement tube is safely located
i.e. not pressed between the front plate of the fan and the wall.
Tighten the fan on the wall.
8 x M8 nuts
Cable glands downwards
Sealing; thickness >15mm
(>25mm for fan size 056)
M8
W
2
W
1
ØD
1
M8
Centriflow 3D GMEC - Installation and Maintenance
5
FläktGroup DC_9941GB_20180516_R0
Specifications are subject to alteration without notice
7. MAINTENANCE
7.1 WARRANTY
A precondition of the warranty is that regular maintenance has
been carried out. Defects under warranty must immediately be
notified to the manufacturer or the importer. The warranty does
not cover service work or indirect damages.
7.2 MAINTENANCE
7.2.1 BEFORE MAINTENANCE
Switch off the power supply to the fan at the safety switch and
wait until the impeller is fully stopped.
7.2.2 INSPECTION
The fan is to be inspected at least once a year.
7.2.3 CHECKING THE MOTOR
Inspect that there are no visible damages on the fan or the motor.
7.2.4 IMPELLER
The impeller can be cleaned by using a vacuum cleaner, com-
pressed air or by brushing. If the impeller is coated with greasy
dirt it can be washed with a detergent or a solvent.
The cleaning is to be done at least once a year. Badly tarnished
impeller will result in lower efficiency of the fan and increases en-
ergy consumption.
The maximum permissible vibration levels are:
Vibration level Alarm Shutdown
BV-2 (below 3.7 kW) 14 15
BV-3 (over 3.7 kW) 11,8 12,5
Values are RMS-values in mm/s measured on the motor.
7.3 REPLACING THE FAN
Replace the fan unit in case of failure. The impeller and the motor
cannot be changed.
The fan has to be disconnected before removing.
MOUNTING INSTRUCTIONS , COMMISSIONING, MAINTENANCE
6. COMMISSIONING
6.1 SAFETY CHECKING
- Check that the impeller rotates freely.
– Make sure that there are no foreign objects in the fan or in the
Air Handling Unit.
– Also check that there is no unusual noise in the fan or motor.
– Check that the installation work has been carried out in ac-
cordance with the relevant regulations.
– Cables and air flow measurement tubes must be attached so
that they do not touch the impeller
– All necessary protective devices must be installed.
– The fan may only be commissioned after all proper procedures
have been followed and all necessary inspections have been
carried out.
6.2 TEST RUN
Briefly switch on the power supply to the motor to check whether
the fan impeller rotates in the correct direction. If the impeller is
rotating in the correct direction, the fan may be switched on.
Check that no abnormal mechanical sound and no surging occur.
5.4 GROUNDING
Motor is grounded through the motor power supply cable.
If extra grounding is needed, grounding can be done with a
separate cable from the fan motor to the casing of the Air Han-
dling Unit. The motor has a grounding marking next to
the grounding point (View A).
5.5 FITTING THE ACCESSORIES
The inlet protective screen can be fitted directly to the front plate
of the fan or outside Air Handling Unit to the inlet opening.
5.6 ELECTRICAL CONNECTIONS
All electrical connections must be wired by authorized personnel
only. The necessary electrical and safety precautions must be
taken into account. Connections must be done according to the
instructions, see separate Controls Instructions for GMEC.
A
A
Extra
grounding
cable
Centriflow 3D GMEC - Installation and Maintenance
6
FläktGroup DC_9941GB_20180516_R0
Specifications are subject to alteration without notice
8. FAULTS
If any faults occur during operation, they shall be repaired by
qualified maintenance personnel.
Some examples of incorrect use:
- foreign particles inside fan (AHU)
- corrosive media inside AHU
- too low or high temperatures
- too high vibrations
- incorrect maintenance
Possible problems generated:
- bearing damage
- corrosion damage
- vibration generated damage
- broken impeller
9. SPARE PARTS
A complete fan is available as a spare part. No separate parts
are available. For more information please contact FläktGroup
sales unit.
10. RECOMMENDED DISTANCE TO OTHER
COMPONENTS
To achieve the best possible operation of the fan inside of the Air
Handling Unit the following minimum distances shall be followed:
11. AIR FLOW MEASUREMENT DEVICE
The airflow sensor is used for measuring the airflow of the plug
fans. The method is based on differential pressure. The pressure
is measured at a specific point in the inlet cone and the reference
pressure is measured upstream of the inlet cone. The air flow
sensor is supplied factory mounted in the inlet cone. The air flow
is calculated as a function of the coefficient k and the differential
manometer reading Dp
m
from the equation:
q
v
= air flow m
3
/s
k = k-factor of each fan
Dp
m
= differential pressure reading (Pa)
FAULTS, SPARE PARTS, DISTANCES, AIR FLOW MEASUREMENT DEVICE, DISPOSAL
qv =
1
k
∆pm
x
GMEC-3-aaa k-factor
025 67.56
028 54.40
031 41.63
035 36.01
040 29.62
045 22.56
050 18.89
056 14.56
Size C Ø D ELD R
025 110 275 190 290 138
028 123 307 212 324 154
031 137 342 258 361 171
035 154 386 290 406 193
040 174 436 327 458 218
045 196 491 370 518 246
050 220 549 415 581 275
056 244 613 463 648 305
12.DISPOSAL OF THE PRODUCT
Used product shall be disposed or recycled according to the local
laws and regulations.
R
A x B
LD C
E
ØD
Centriflow 3D GMEC - Installation and Maintenance
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FläktGroup DC_9941GB_20180516_R0
Specifications are subject to alteration without notice
13. DECLARATION OF CONFORMITY
EC Declaration of incorporation for Partly Completed machinery
Machinery Directive 2006/42/EC, Annex II, sub B
Manufacturer: Fläkt Woods Oy
Address: Kalevantie 39
FI-20520 Turku, Finland
Name and address of the person authorised to compile the relevant technical documentation:
Name: Heikki Stenberg Address: as above
The design of the Partly Completed Machinery:
GMEB/GMPM /GMEC with accessories
Induction AC-motor
Induction AC-motor with integrated VSD
Electronically commutated external rotor motor with integrated controller
Permanent magnet motor with controller
The following essential requirements of the Machinery Directive (2006/42/EC) are applied and fulfilled:
1.1.2, 1.1.3, 1.1.5, 1.5.1
The specific technical documentation in accordance with Appendix VII B has been written and is available.
The specific documentation will be transmitted to a reasoned request by national authorities.
And that this partly completed machinery is in conformity with the provisions of the following other EC-
Directives:
Low Voltage Directive 2014/35/EU
EMC-Directive 2014/30/EU
ErP Directive 2009/125/EC
And furthermore, declares that
the following (parts/clauses of) European harmonised standards have been
applied: EN ISO 12100-2010, EN ISO 13857:2008 and ISO EN 5801
This partly completed machinery must not be put into service until the final machinery into which it is to be
incorporated has been declared in conformity with provisions of the Machinery Directive 2006/42/EC, where
appropriate.
Turku, 20.4.2016 Heikki Stenberg
R&D Manager
FG_DC-9853GB_Centriflow 3D GMEC_IN-MA_180516_R0 © Copyright 2018 FläktGroup
WWW.FLAKTGROUP.FI GMEC 9941
» Learn more on www.flaktgroup.com
or contact one of our offices
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