FläktGroup CentriFlow 3D GMEC Installation guide

Brand: FläktGroup

Model: CentriFlow 3D GMEC

Type: Installation guide

FläktGroup CentriFlow 3D GMEC is a plug fan intended to be used inside of the Air Handling Unit. It is equipped with a high efficiency (IE4) permanent magnet external rotor EC-motor. The motor is 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 fan is designed to generate a desired air volume at a given pressure 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.

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

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

Centriﬂow 3D GMEC - Installation and Maintenance

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.

4xM8

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

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)

Screw length 30

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)

ØD

Centriﬂow 3D GMEC - Installation and Maintenance

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.

Extra

grounding

cable

Centriﬂow 3D GMEC - Installation and Maintenance

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

from the equation:

= air ﬂow m

k = k-factor of each fan

= differential pressure reading (Pa)

FAULTS, SPARE PARTS, DISTANCES, AIR FLOW MEASUREMENT DEVICE, DISPOSAL

qv =

∆pm

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.

A x B

LD C

ØD

Centriﬂow 3D GMEC - Installation and Maintenance

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

WWW.FLAKTGROUP.FI GMEC 9941

» Learn more on www.ﬂaktgroup.com

or contact one of our ofﬁces

A HISTORY OF INNOVATION

AND RELIABILITY

With more than a century of accumulated industry experience, FläktGroup is

in a unique position to deliver energy efﬁcient components and solutions for

integrated performance, reliability and quality. With modern manufacturing

technologies, precise deliveries and technical support, FläktGroup is your

partner – fulﬁlling and surpassing industry standards and certiﬁcations.

FläktGroup CentriFlow 3D GMEC Installation guide

FläktGroup CentriFlow 3D GMEC Installation guide

FläktGroup CentriFlow 3D GMEC Installation guide

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