System air DVV-Ex User manual

DVV Ex

English o rigi n a l v e r si on
Installation and Operating Instructions for
Anvisningar för montering och drift
Инструкция по установке и эксплуатации

General information
2 DVV Ex 16.08.2021
The data stated in these operating instructions are merely for the purpose of describing the product. Information
about a certain property or suitability for a certain purpose of use cannot be derived from our information. The infor-
mation does not release the user from his own assessments and examinations.
Please consider the fact that our products are subject to a natural wear and ageing process.
All rights are with Systemair d.o.o., also for the event of applications for protective rights.
Any powers of use, such as copying and forwarding rights, are with us.
An exemplary configuration has been shown on the title page. The product supplied can therefore deviate from the
illustration. The original operating instructions have been written in the English language.
Uppgifterna i denna bruksanvisning är enbart en produktbeskrivning. De garanterar inte en viss beskaffenhet resp.
egenskap eller att de lämpar sig för ett visst användningssyfte. Uppgifterna i bruksanvisningen befriar användaren inte
från egna bedömningar och egna kontroller.
Observera att våra produkter slits och åldras helt normalt precis som andra produkter.
Systemair GmbH innehar alla rättigheter med hänseende till en eventuell anmälan av skyddsrätter.
Vi innehar också alla rättigheter med hänseende till förfoganderätten, kopiering och spridning.
På första sidan visas ett exempel på en konfiguration. Produkten som levereras kan därför eventuellt avvika från
bilden. Originalbruksanvisningen är skriven på tyska.
Данная инструкция предназначена для описания продукта. Информация об использовании или возможности
применения для определенной цели не может быть принята только на основе данной инструкции. Этот
документ не особождает пользователя от собственной ответственности.
Обратите внимание, что оборудование подвержено естественном уизносу и процессу старения.
Все права защищены Systemair GmbH. Любое использование, копирование и передача прав должны быть
согласованы.
Стандартная конфигурация показана на титульном листе. В зависимости от типоразмера, оборудование может
отличаться от иллюстрации.
Оригинальная инструкция по эксплуатации написана на немецком языке.
Previous issue: IMO_DVV4g_Ex_de_en_23_02_2015_Am_13_02_2018
Changes:
-Update of intended use 2.3
-Update of description (5)
-Technical data (5.1) –warnings about weight
-Electrical connection (7) –service switch added
-APP1 (gap + overlap)n
-APP3 (name plate and type key)
-Update of declaratione
-version: -
Ранее инструкция: -

DVV Ex 16.08.2021 3
Table of contents
1. General information...................................4
1.1 List of information ........................................4
1.2Specific safety symbols .................................4
1.3Notes on the documentation........................5
2. Important safety information.....................5
2.1 Safety notes ..................................................5
2.2 Personnel...................................................... 5
2.2.1 Mounting personnel .....................................5
2.2.2 Work on the electrical equipment................ 5
2.2.3 Personnel for operation, use,
maintenance and cleaning............................5
2.3 Intended use.................................................5
2.4 Improper use ................................................6
3. Warranty.................................................... 6
4. Delivery, transport, storage........................7
4.1 Delivery......................................................... 7
4.2 Transport ......................................................7
4.3 Storage.......................................................... 7
5. Description................................................. 7
5.1 Technical data...............................................8
5.2 Dimensions ...................................................8
6. Intallation...................................................8
6.1 Safety information ........................................ 8
6.2 Preconditions for installation........................8
6.3 Installation ....................................................9
7. Electrical connection ..................................9
7.1 Protect the motor ....................................... 10
7.2 Connection of thermal protection ..............10
8. Commissioning......................................... 10
8.1 Preconditions ..............................................10
8.2 Commissioning............................................11
8.2.1 Safety elements...........................................11
9. Operation................................................. 11
9.1 Safety notes ................................................11
9.2 Operating conditions...................................11
9.3 Operation/use.............................................12
10. Maintenance/Troubleshooting................. 12
10.1 Malfunctions and troubleshooting .............13
10.2 Cleaning.......................................................13
10.3 Maintenance, service..................................13
10.4 Spare parts ..................................................14
11. Uninstalling/Dismounting ........................ 15
12. Disposal.................................................... 15
12.1 Disposal of the fan ......................................15
12.2 Disposal of packaging..................................15
Appendix 1: Gap nozzle - impeller, distances,
crosssection
Appendix 2: Wiring diagram
Appendix 3: Name plate and type key
EC-Declaration of Conformity

General information
4 DVV Ex 16.08.2021
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 moderate injuries.
ATTENTION
Hazard with risk of property damage
Failure to comply with this warning leads to property damage.
NOTE
Useful information and notes
1.2 Specific safety symbols
WARNING
Hazard from electrical current!
This warning identifies situations with a danger for life from electrical current. Failure to comply with
this warning leads to the risk of death or serious injuries.
DANGER
Explosion-protection!
This warning identifies contents and instructions in these operating instructions which apply when using
the appliance in explosion-capable areas. Failure to comply with these contents and instructions leads
to a loss of explosion protection and can lead to serious injuries and death.
WARNING
Hazard from hot surface!
This warning identifies situations with a danger from overheating. Failure to comply with this warning
potentially leads to property damage.

DVV Ex 16.08.2021 5
1.3 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 with the fan. They must be permanently available at the place of use.
2. Important safety information
2.1 Safety notes
Designers, installers and operators are responsible for the proper mounting and intended use.
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 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.
Compliance with EMC Directive 2014/30/EU only relates to these products when they have been connec-
ted directly to the customary energy supply mains.
2.2 Personnel
2.2.1 Mounting personnel
Mounting may only be carried out by trained, qualified personnel.
2.2.2 Work on the electrical equipment
Work on the electrical equipment of the fan may only be done by a qualified electrician or electrotechnically edu-
cated 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 oper-
ating personnel must have appropriate knowledge about handling with the fan. In the case of a malfunction or an
emergency they must react correctly and adequately.
2.3 Intended use
DVV Ex 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.

Warranty
6 DVV Ex 16.08.2021
DVV Ex 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 and permissible moisture of max. 95 %.
The maximum permissible operating data on the name plate apply for an air density ρ = 1,2 kg/m³ (sea lev-
el) and a maximum air moisture of 80 %.
Roof fans DVV Ex with electric motor in explosion protection »flameproof enclosure« (Ex d) are only intend-
ed to exhaust potentially explosive atmospheres from zones 1 or 2, field of application II, installation in zones 1,
2, or in not explosion hazardous areas, as well as accordingly with the marking of explosion protection (gases of
the groups IIA, IIB and H2, temperature classes T1 –T4), duty type S1 - continuous operation. The fans are clas-
sified to category 2G up to Directive 2014/34/EU. They are suitable for installation outside buildings only (on
roofs).
Media temperature and ambient temperature limits depending on the Ex-identification:
Ex-identification of the
fan
Media
temperature
Ambient
temperature
Gas group
Temperature class
II 2G Ex h IIB+H2 T4 Gb
-20 ≤ T ≤ +40°C
-20 ≤ Ta ≤ +40°C
IIA, IIB, H2
T1, T2, T3, T4
II 2G Ex h IIB+H2 T4 Gb
(-20 ≤ Ta ≤ +55°C)
-20 ≤ T ≤ +55°C
-20 ≤ Ta ≤ +55°C
IIA, IIB, H2
T1, T2, T3, T4
II 2G Ex h IIB+H2 T4 Gb
(-40 ≤ Ta ≤ +40°C)
-20 ≤ T ≤ +40°C
-40 ≤ Ta ≤ +40°C
IIA, IIB, H2
T1, T2, T3, T4
2.4 Improper use
Above all, the improper use means using the fan in a way other than that described. The following points are improper
and hazardous:
-Use of a fan with improper Ex-identification (category, gas group, temperature class or ambient temperature);
-Not suitable to exhaust dust containing meduim or medium with such dust concentration, that could affect
with dust deposits on operation and explosion protection (appropriate filtering necessary);
-Extraction of grease containing media;
-In case of suction aggressive atmosphere additional acid protection of exposed parts is necessary;
-Not suitable for indoor use;
-Operation without duct system or protective guard;
-Operation with the air connections closed;
-Operation without effective thermal protection (PTC).
3. Warranty
Warranty for our products shall be determined according to the contractual agreements, our quotations and also, as a
supplement, our General terms and Conditions of Business. Warranty claims shall presuppose that the products are
correctly connected, operated and used accordingly to data sheets, and also regularly maintained.
4. Delivery, transport, storage
4.1 Delivery
Each device leaves our plant in an electrically and mechanically proper condition. The fans are delivered in wooden
crates. We recommend to transport them to the installation site in original packaging.
CAUTION
Danger from cutting edges!
Wear protective gloves when unpacking.

DVV Ex 16.08.2021 7
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 impeller, 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 impeller for transport.
Transport and unload the wooden crate carefully.
Transport the fan either in the original packaging or on the provided transport devices (lifting eyes) with appropri-
ate hoisting devices.
Only put the ventilator at unpacking on its base plate.
At manual transport observe allowed human lifting rsp. 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 impeller 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.
5. Description
Roof radial fans type DVV Ex with electric motor in explosion protection »flameproof enclosure (Ex d)« are intended to
exhaust potentially explosive atmospheres according to fan`s Ex-identification.
The octagonal casing is manufactured from seawater resistant aluminium. The base plate with nozzle consists of hot-
dip galvanized steel. The inlet nozzle is coated with cooper sheet. Impellers with backward-curved blades are welded
and galvanized. They are fastened together with hub and secured screw directly on to the motor shaft. Dynamically
balanced to BV-3, ISO 14694. The earthing connection of electric motor is connected by a coopper rope with the base
plate.
Additional sound attenuator HSDV is available on request, factory mounted as DVVI-Ex fan.
Serial equipped with B5 electric motors 3x400V~, 50Hz, IP 55, insulation class F, with built-in PTC.

Installation
8 DVV Ex 16.08.2021
Electric motor
Connection
Single speed (4 pole, 6 pole, 8 pole)
Y or D
Two speed (4-6, 6-8)
Y/Y
Two speed (4-8) Dahlander
YY/Y
5.1 Technical data
Size
Max.
synchron
RPM at 50
or 60 Hz
Max. nomi-
nal power at
50 Hz*
Impeller
diameter
Max.
weight**
DVV Ex
Max.
sound power
level inlet
Max.
sound power
level outlet**
min-1
kW
mm
kg
dB(A)
dB(A)
560 XS, XM,
XL
1500
2,2
520, 570
114
90
90
630 XS
1500
3
650
145
92
94
630 XM
1500
4
650
159
94
96
630 XL
1500
5,5
650
183
97
98
800 XS
1000
3
820
260
84
86
800 XM
1000
4
820
270
87
89
800 XL
1000
5,5
820
274
91
93
1000 XM
1000
7,5
980
379
92
95
1000 XP
1000
11
980
403
93
96
1000 XL
1000
11
980
405
92
94
*Motor data (input power P1, current, RPM) and data of the fan are visible on the name plate and on the test pro-
tocol. Motor data may slightly deviate from catalogue depending on different supplier.
**Single speed motors, without HSDV. The weight may deviate from catalogue depending on different supplier.
5.2 Dimensions
Are on-line available (www.systemair.com).
6. Installation
6.1 Safety information
WARNING
Hazard from falling parts!
Check the base before installation for load capacity/strenghth.
When selecting the hoisting device and fitting material observe the weight, tendency to vibrations and
shear forces (weight information on the name plate).
6.2 Preconditions for installation
Fans DVV-Ex must be installed on roofs.
The fans must be mounted on a flat, horizontal roof base (<10 mm/m) with height of min. 250 mm over the roof
top (motorshaft vertical). The base shall be accordingly designed (load capacity, stiffness, insulation, explosion pro-
tection, grounding), if not proved Systemair accessories used.
Installation site must be protected from dust, moisture and weather influences.
6.3 Installation
Ensure secure access to the fan for maintenance and service.
Fit the contact surface between base plate and roof base with sealing tape. Systemair roof bases (for DVV Ex
marked with „Ex“) are delivered with appropriate sealing tape.

DVV Ex 16.08.2021 9
DANGER
Explosion-protection!
Before and after mounting check manually if the impeller rotates smoothly. Install the fan only, if the
minimum air gap between rotor and nozzle matches the value from Appendix 1.
The fans shall be fixed to the base with 4 screws in the corners.
Avoid distortions of the casing at installation.
Ensure unobstructed and uniform intake into the fan as well as free outlet.
Install connecting ducts and accessories. The suction side of the fan is provided with a connection for flange-type
mounting of the air duct according to Eurovent.
Provide for contact/suction 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.
NOTE
It is recommended to install a conductive flexible connection between the fan and duct to avoid eventual
tensions or distortions of the base plate. The flexible connection has to comply guidelines for the preven-
tion of ignition hazards due to electrostatic charges (also as certified Systemair accessorie available).
NOTE
Mounting examples with accessories are on-line available (www.systemair.com).
7. Electrical connection
The wiring diagram is placed on the cover of connection box or service switch (inside).
In case of using connection box on the fan install appropriate service switch outside hazardous zone to control the
fan at maintenance/service/cleaning.
Service switch in explosion protection II 2G Ex db eb IIC T6 Gb is accessory, factory mounted on the fan instead of
connection box, if ordered.
NOTE
Motors have serial built-in PTC. More than two PTC chains may not be switched in series, as this
can lead to undefined cut-outs.
Maximum check voltage of PTC is 2,5 V (to reduce influence on the result of measurement).
The wiring diagrams see Appendix 2.

Commissioning
10 DVV Ex 16.08.2021
WARNING
Hazard from electrical voltage!
Electrical connection only by a trained electrician rsp. trained and instructed qualified 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 and fit a suitable warning notice.
Connect the cable according to wiring diagram.
Use only Ex-approved cable gland fittings.
Tighten the nuts of cable glands well to achieve IP68 protection.
Check, if the cover of connection box or service switch is uniformly fastened.
Place the supply cable.
Ground all conductive parts and accessories.
DANGER
Explosion protection!
Motor protection devices and frequency converters must be installed outside explosion hazardous areas!
7.1 Protect the motor
Avoid two-phase running:
at 3-phase motors, use an all-pole C-safety cut-out (current consumption, see name plate).
7.2 Connection of thermal protection
CAUTION
Property damage as a result of motor overheating
The motor can overheat and be destroyed if the PTC not been connected.
PTC always connect to a motor protective 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 fitted (protection against contact).
The protective conductor and external earth conductor have been connected.
The thermal protection is properly connected to the motor protective device:
the motor protective device is functional;
the thermal protection is functional.
The cable glands are tight.

DVV Ex 16.08.2021 11
Provided mains connection complies with the data on the name plate.
The current (from the name plate) does not exceed the mains data.
All conductive added and accessory parts have been earthed.
8.2 Commissioning
WARNING
Hazard from electrical voltage!
Commissioning by trained and instructed qualified 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 (all speed!). Switch the fan for a short period on and then off to check the direction of
rotation of impeller. It is visible through a hole on the casing. The rotation must comply with the arrow on the cas-
ing. If wrong, swap two phases.
smoothly running (eventual vibrations and noise);
current with appropriate instrument;
tightness of all joints.
Fill in the attached test protocol and submit it in case of warranty claim.
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 access only to persons, who can safe handle the device.
DANGER
Explosion protection!
Intervention in the fan or in a connected system is allowed only if no pottentially explosive atmosphere
present and if there is no danger to appear it!
9.2 Operating conditions
During operation, touching the impeller must not be possible.
Safety components must not be bypassed or put out of function.
The fan may operate only within the limits declared on the nameplate, operation over 50 Hz is not allowed (excep-
tion: the fan can be approved for 60 Hz operation, if synchronous speed at 60 Hz does not exceed the data from
the table in section 5.1; in that case the fan will be accordingly designed and marked on the nameplate).

Maintenance/trouble setting
12 DVV Ex 16.08.2021
Prevent sucking of foreign particles , this can destroy the fan.
Switching frequency:
-the fan is intended for S1 continuous operation!
-the control equipment must not allow any extreme switching!
ATTENTION
Hazard with risk of additional costs
In case of speed control via frequency converter - min. 20 Hz ÷ max. 50 Hz (rsp. 60 Hz, if dec-
lared for 60 Hz), it is recommended use of combination of frequency converter and appropriate all-
pole sine filter (or dU/dt filter). It is particularly important, if the supply cable is long, but also to
reduce the motor noise. Filters may only be abandoned, if proven, that the voltage peaks on the
connection terminals of the fan are inside limits up to IEC 60034-17. The peaks shall be lower than
the limits ULL 1350 V and the rise time longer than 0,8 μs. Shorter rise time requires lower peaks.
Not observing this, the motor life time could be shorter.
At all single speed motors there are 4 wires (+PTC) led to connection box. Starting “star – del-
ta” is not possible!
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 flying 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).
10. Maintenance/trouble setting
WARNING
Hazard from electrical voltage!
Trouble setting and service only by a trained electrician or trained and instructed qualified personnel!
Observe rules for safe work while troubleshooting!
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 and fit a suitable warning notice.
DANGER
Explosion protection!
Intervention in the fan or in a connected system is allowed only if no pottentially explosive atmosphere
present and if there is no danger to appear it!

DVV Ex 16.08.2021 13
WARNING
Hazard from electrical voltage!
Observe at maintenance and service:
Impeller must stand still.
Electrical circuit must be interrupted and secured against restarting.
Observe the rules for safe work.
CAUTION
Danger from hot surfaces!
During maintenance and cleaning wear protective gloves!
10.1 Malfunctions and service
The ventilator does not
run
Check connection to the mains and thermal protection. If ok. check electric motor. If
two speed motor (4-6, 6-8, 4-8, 6-12) is installed, check all speed. If necessary get the
electric motor repaired.
Air volume is too low
Check the direction of rotation. If wrong, swap the supply connection of any 2 phases.
Check if current is similar all phases. If ok. check operating point and system design
(too high pressure loss, obstacles in duct).
Thermal protection
switches off
Compare connection with wiring diagram. Compare the data of electric motor with
setting of thermal protection. If ok. check power supply and electric motor (short-
circuit, damage to the bearings, impeller blocked or grinding). Get the electric motor
or if necessary the complete fan repaired.
Overcurrent. Check the direction of rotation. If wrong, swap any 2 phases. Check if
current is similar all phases.
Noise
Damage to the bearings, impeller blocked or grinding. Get the electric motor or if
necessary the complete fan repaired.
Loose fit on the base plate or motor support. Tighten the bolts, look for the cause of
vibrations.
Vibrations
Check operating point and system design. If the actual pressure drop of the system is
higher than supposed, the fan could operate in an unstable area of the fan curve.
Consult customer service of the manufacturer.
Damage or dust layer on impeller.
Clean the impeller, if necessary balance it or replace it.
If the reason for malfunction cannot be clearly determined, consult the customer service of manufacturer.
10.2 Cleaning
Regular cleaning prevents unbalance.
Keep casing clean and clean it if necessary with a brush (do not use a steel brush or high-pressure cleaner). Do not
use any detergents for interior cleaning. Regular cleaning is particularly important, if there are trees in the neigh-
bourhood. The gap between casing and base plate must be kept free for water drain and may not be covered by
needles or leaves.
10.3 Maintenance, service
DANGER
Loss of explosion protection!
Basically the fan may be repaired at the manufacturer only! Failure to this would expire the ATEX approval
(basically, always consult the manufacturer). Exceptions are non-relevant components. They can be per-
formed on site by qualified personnel.

Maintenance/trouble setting
14 DVV Ex 16.08.2021
The fan is by built-in for-life lubricated ball bearings as far as possible low-maintenance product. After their life time
(app. 30.000 to 40.000 h), a replacement of the bearings is necessary. Observe attached instructions of motor manu-
facturer.
Pay attention to a non-typical noise from bearings.
For damages (e.g. damage to winding) please contact our Service Department. Repairs may be accomplished only
in the company of manufacturer and by the manufacturer. You find the address on the back of these operating in-
structions.
Maintenance and check points of fans similarly to VDMA 24186-1 (type, scope and maintenance intervals to be speci-
fied in dependence of use and operating conditions).
VDMA
24186-1
Description
Maintenance interval
Monthly
Every
3 months
Once
a year
Fan and electric motor
1.1.11
Check the drainage for function
×
6.1.1
Check to dirt, damage, corrosion and fastening
×
6.1.2
Functional cleaning
×
10.1.6
Check the terminals for tightness
×
10.1.9
Test the fan for function und operational readiness
(test run app. 15 min.)
×
6.1.4
Check the bearings for noise
×
10.1.3
Check impeller for direction of rotation (all speed)
×
6.1.3
Check impeller if damaged or unbalanced (if neces-
sary provide vibration measurement)
×
10.1
Functional test of automatically bridging of all ther-
mal and overcurrent protective devices
×
10.1.7
Measure the current
×
10.1.12
Test function of protective device
×
Triggering device
Check it for function
×
Test of functions
Test all functions of system from control panel as
well as signal lights
×
Accessories (air ducts, air louvers, flaps,
sound attenuators)
5.5.1
Check accessible ducts inclusive fire protective insu-
lation and fastening for outside damages and corro-
sion (visually)
×
5.5.4
Check accessible flexible connections for tightness
(visually)
×
5.2.1
5.2.3
Flaps and sound attenuators check for dirt, damage
and corrosion
Check mechanical functionality of the flaps
×
5.1.1
Check air louvres for dirt and damage (visually)
×
10.4 Spare parts
In case of order of spare parts please specify the serial number of the fan. You can find it on the name plate or in the
test protocol.
Spare parts: electric motor (at DVV Ex there is a restriction to use only from the test lab allowed motors), impeller,
service switch, casing, connection box.

DVV Ex 16.08.2021 15
11. Uninstalling/dismounting
WARNING
Hazard from electrical voltage!
Switching off and uninstalling only by a trained electrician or trained and instructed qualified person-
nel!
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 and fit a suitable warning notice.
DANGER
Explosion protection!
Intervention in the fan or in a connected system is allowed only if no pottentially explosive atmosphere
present and if there is no danger to appear it!
CAUTION
Danger from cutting edges and impact!
Wear protective gloves when dismounting!
Dismount carefully.
WARNING
Hazard from falling parts!
When selecting the hoisting device observe the weight (weight information on the name plate).
Carefully disconnect all wires.
Remove the fan from duct and roof base. Carefully remove the fastening material.
Lift the fan with an appropriate hoisting device on the provided lifting eyes. Place the fan on appropriate pallet.
12. Disposal
12.1 Disposal of the fan
Should the fan be disposed, proceed as follows:
Disassemble the fan into its components.
Separate the parts according to reusable material and material groups to be disposed (metal, plastics, electrical
parts, etc.).
Provide for the recycling of material. Consider the national regulation.
12.2 Disposal of the packaging
Provide for the recycling of material. Consider the national regulation.

Appendix 1
Gap nozzle - impeller („s“), overlap impeller – nozzle („h“), distance impeller - fixed parts („g“)

Appendix 2
DVV Ex 16.08.2021 17
PTC max 2,5 mm2

Appendix 3
18 DVV Ex 16.08.2021
1. Name plate
2. Type key
Example: DVV Ex 1000D6 XL
DVV Ex
Roof fan (DVV –without attenuator, DVVI –with attenuator)
1000
Size –approximately outer diameter of impeller in mm (560, 630, 800, 1000)
D
Motor execution (3~ motor)
6
Polarity –6 pole motor (4, 6, 8, 4-6, 4-8, 6-8)
XL
Impeller type (XS, XM, XP, XL –different blade angle, number of blades and impeller
height)

OSK 03-07-R1_I087AA_05_DVVEx_Declaration_16_08_2021.docx
The Manufacturer:
Systemair d.o.o.
Špelina 2
SI-2000 Maribor
Tel.: [phone]
certified herewith that the following products:
Roof fans, type DVV/DVVI Ex*
ensure all relevant regulations of following directives:
Directive 2006/42/EC
MD
Directive 2014/30/EU
EMC
Directive 2014/34/EU
ATEX
Directive 2014/35/EU
LVD
Directive 2011/65/EU
RoHS
Regulation 2019/1781/EU
Ecodesign
The following standards are used:
EN 1127-1:2019
Explosive atmospheres - Explosion prevention and protection - Part 1: Basic concepts and
methodology
EN ISO 12100:2010
Safety of machinery - General principles for design - Risk assessment and risk reduction
EN ISO 13857:2019
Safety of machinery - Safety distances to prevent hazard zones being reached by upper and
lower limbs
ISO 14694:2003
Industrial fans –Specifications for balance quality and vibration levels
EN 14986:2017
Design of fans working in potentially explosive atmospheres
EN IEC 60079-0:2018
Explosive atmospheres - Part 0: Equipment - General requirements
TP CLC/TR 60079-32-1:2019
Explosive atmospheres –Part 32-1: Electrostatic hazards, guidance
EN 60204-1:2018
Safety of machinery - Electrical equipment of machines - Part 1: General requirements
EN 61439-1:2011
Low-voltage switchgear and controlgear assemblies - Part 1: General rules
EN ISO 80079-36:2016
Explosive atmospheres - Part 36: Non-electrical equipment for use in explosive atmospheres -
Basic methods and requirements
EN ISO 80079-37:2016
Explosive atmospheres - Part 37: Non-electrical equipment for use in explosive atmospheres -
Non-electrical type of protection constructional safety 'c', control of ignition sources 'b', liquid
immersion 'k'
*Roof fans DVV/DVVI Ex with electric motor in explosion protection »flameproof enclosure« (Ex d) are only intended to exhaust
potentially explosive atmospheres from zones 1 or 2, field of application II, installation in zones 1, 2, or in not explosion
hazardous areas, as well as accordingly with the marking of explosion protection (gases of the groups IIA, IIB+ H2, temperature
classes T1 –T4 and marking of ambient temperature. The fans are classified to category 2G up to Directive 2014/34. They are
suitable for installation outside buildings only (on roofs).
Note: The compliance with EC Machinery Directive and EN ISO 13857 refers to the mounted protective guards on the inlet of the
fan. For the fully accordance with mentioned requirements (protective guards or safety assurance in other way) the performer is
responsible.
Maribor,
16.08.2021
Date
Anton Zupančič, Director
EU Declaration of Conformity