System air DVG Series User manual

DVG

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
DVG-H EC DVG-V EC
DVG-H DVG-V

General information
2 DVG 13.12.2016
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 issues:
IMO_DVG_en_19_05_2015_Am_23_12_2015
IMO_DVG_es_19_05_2015 Br
IMO_DVG_fr_19_05_2015_Am_23_12_2015
Changes:
1. Title pictures changed.
2. Description/page7/Impellers with backward blades are welded and galvanized (sizes 355, 450 made of
pre-galvanized steel and tabbed).
3. Maintenance/page 14/How to replace electric motor or impeller please see instruction IMO_DVG_ Dis-
assembly (on request).
4. Appendix 7 added.
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, 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 English language.

Table of contents
1. General information................................... 4
1.1 List of information ........................................ 4
1.1.1 Specific safety symbols ................................. 4
1.1.2 List of instructions for action ........................ 4
1.2 Notes on the documentation........................ 5
2. Imortant 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........................ 6
4.1 Delivery ......................................................... 6
4.2 Transport ...................................................... 7
4.3 Storage.......................................................... 7
5. Description ................................................. 7
5.1 Technical data............................................... 8
5.2 Dimensions ................................................... 8
6. Installation ................................................. 8
6.1 Safety information ........................................ 8
6.2 Preconditions for installation........................ 8
6.3 Installation .................................................... 8
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: Mounting of service switch,
Mounting of vertical outlets at DVG-V ................ 16
Appendix 2: Wiring diagrams .............................. 17
Appendix 3: Wiring diagrams DVG-EC 1~............. 19
Appendix 4: Wiring diagrams DVG-EC 3~..............21
Appendix 5: Accessories DVG-H - mounting………..23
Appendix 6: Accessories DVG-V - mounting………..24
Appendix 7: Sealing of cable glands………….………..25
EC-Declaration of Conformity……………………………..26

General information
4 DVG 13.12.2016
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
1.1.1 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.
WARNING
Hazard from hot surface!
This warning identifies situations with a danger from overheating. Failure to comply with this warning po-
tentially leads to property damage.
1.1.2 List of instructions for action
Instruction for action
Instruction for action with fixed order
Carry out this action.
Carry out this action.
(if applicable, further action)
Carry out this action.
(if applicable, further action)

DVG 13.12.2016 5
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 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 89/336/EEC 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
DVG fans are intended for installation in ventilation systems, outside buildings only (on roofs). They can be installed
either in duct systems or as a free sucking fan over a nozzle and a sucking side protection grid.
DVG 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 %.

Warranty
6 DVG 13.12.2016
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 %.
Smoke and heat extract roof fans DVG/F400 are intended to exhaust hot gases up to 400°C/120 min (F400/120,
F400/90, F300, F200). They are designed for use in powered smoke and heat exhaust ventilating systems in the
event of fire, and ventilating in normal conditions (dual use). Ventilated areas and emergency exits contribute to
easier evacuation of people and equipment in the event of fire, and to faster and more efficient fire extinguishing;
they protect the building structure and equipment against excessive temperatures and decrease fire escalation to
the surrounding areas. Daily ventilation of medium -20 up to 120°C, continuous operation (DVG-EC/F400 up to 80°C
in standstill). Snow load classification: SL 1000 for DVG-H/F400 with horizontal outlet –suitable for installation over
heated or unheated buildings up to SL 1000 (provide appropriate height of the roof base). DVG-V/F400 with vertical
outlet with classification SL 0 are suitable for installation only on the top of heated buildings, considering possible
heat transfer.
Versions DVG-T and DVG/120 can be used for common daily ventilation only, not to be used for smoke extraction.
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 identification (temperature/time class in case of smoke extraction);
-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;
-The fans DVG are not intended to exhaust from explosion hazardous zones;
-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 (intake protection);
-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 or cardboard boxes. 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, service switch and impeller, cracks in the housing,
missing rivets, screws or covering caps.

DVG 13.12.2016 7
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, service switch or impeller for transport.
Transport and unload the wooden crate/cardboard box carefully.
Transport the fan either in the original packaging or on the provided transport devices (lifting eyes) with appro-
priate 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
The casing is manufactured from seawater resistant aluminium. The base plate with nozzle consists of hot-dip galva-
nized steel. Impellers with backward-curved blades are welded and galvanized (sizes 355, 450 made of pre-galvanized
steel and tabbed). They are fastened together with hub and secured screw directly on to the motor shaft. Dynamically
balanced to ISO 1940 T1, class G6,3.
Serially equipped with B5 electric motor 3x400V~, 50Hz, IP 55, insulation class F, with built-in PTC. On request, the fan
can be equipped with electric motor intended for other voltage/frequency. Electric motor outside air stream is cooled
with fresh air.
Electric motor
Connection
Motor efficiency class, serially
Single speed (4 pole, 6 pole, 8 pole)
Y or D
IE2, rsp. IE1 (8 pole)
Two speed (4-6, 6-8)
Y/Y
IE1
Two speed (4-8) Dahlander
YY/Y
IE1
DVG-EC only: Serially equipped with EC (electronically commutated) high efficiency electric motors for single-phase
current 200 to 265V, 50/60Hz Hz (sizes 355 and 450), rsp. 342 to 506V, 50/60Hz Hz (sizes 560, 630, 800). Protection
class IP 54. Insulation class F. Max. RPM: 1500 RPM, rsp. 900 RPM at DVG 800. Prewired with controller and the
connection box outside on the casing.

Installation
8 DVG 13.12.2016
5.1 Technical data
Size
Max. synchron
RPM at 50 or 60
Hz for
DVG/F400**
Max. nomi-
nal power at
50 Hz*/**
Impeller
diameter
Max.
weight**
DVG/F400
Max.
sound power
level inlet**
Max.
sound power
level outlet**
min-1
kW
mm
kg
dB(A)
dB(A)
315
1500
0,37
325
41
78
77
355
1500
0,37
365
43
81
78
400
1500
0,55
410
47
85
86
450
1500
1,1
454
58
88
88
500
1500
1,5
520
91
90
93
560
1500
2,5
570
107
94
94
630
1500
4,6
650
144
96
101
800
1000
5,5
820
223
96
99
*Motor data (input power P1, current, RPM) and data of the fan are visible on the name plate and on the test pro-
tocol.
**DVG/T, DVG/120 and DVG-EC may vary from these data due to special motors
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
DVG fans 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), if not proved
Systemair accessories used. Extremely wind or turbulence exposed places should be avoided in order to prevent
any water droplets ingress under extreme weather conditions. Use DVG-V outlets to reduce this danger.
Installation site must be protected from dust, moisture and weather influences.
6.3 Installation
Ensure secure access to the fan for maintenance and service.
Mounting of service switch and vertical outlets (DVG-V) up to Appendix 1.
Fit the contact surface between base plate and roof base with sealing tape. Systemair roof bases are delivered
with appropriate sealing tape.
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 the test protocol.
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.

DVG 13.12.2016 9
Install connecting ducts and accessories. The suction side of the fan is provided with a connection for flange-type
mounting of the air duct, dimensions are on-line available.
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 flexible connection between the fan and duct to avoid eventual tensions or
distortions of the base plate (also as certified Systemair accessorie available). For F400 only: appropriate
flexible connection should take possible thermal extension of connecting parts.
NOTE
It is recommended to keep sufficient ventilation rate to avoid condensation in cold corners of the roof
base under certain weather conditions or to insulate any heat bridge in case of low ventilated buildings.
NOTE
Data of accessories are on-line available (www.systemair.com).
7. Electrical connection
The wiring diagram is placed inside the cover of service switch (also in the test protocol). At DVG-EC the wiring dia-
gram is placed in the connection box. The quality and installation of cables for electrical connection must ensure unin-
terrupted energy supply, even in case of fire. The electric cable must not be in contact with or be fastened to the cas-
ing of the fan (F400 only, high temperature!). Connecting possibility see Appendix 2. Electrical data on the fan name-
plate must comply with the provided mains connection. Equivalent motors from different suppliers may have slightly
different nominal data than in catalogue.
NOTE (NOT APPLICABLE AT DVG-EC)
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.
The wiring diagrams see Appendix 2.
Motor protection must be provided by the installer.
NOTE (DVG-EC ONLY)
The controller has built-in thermal protection.
Observe attached detailed instructions of motor and controller supplier ( 1~ unit instruction for con-
troller “Compacto”, 3~ unit instruction for controller “Invento”).
Power supply connection in the service switch, control cable in the connection box. Wiring diagrams and
descriptions in Appendix 3 (DVG-EC 1~) and Appendix 4 (DVG-EC 3~).
Since EC motor built-in, there are warnings for remaining voltage after supply switched off.
Type of permitted RCD protective devices observe local regulations.

Commissioning
10 DVG 13.12.2016
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.
Tighten the nuts of cable glands well to achieve IP68 protection.
Check, if the cover of service switch is uniformly fastened. If there is a danger of unintended switch off of the
service switch, it should be locked to guarantee operation in fire case (F400). Drill a hole into the handle in the
“on” position and provide with a padlock (not supplied with the fan). See Appendix 1.
Place the supply cable.
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 (not applicable at DVG-EC)
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 (not applicable at DVG-EC):
-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.
The current (from the name plate) does not exceed the mains data.

DVG 13.12.2016 11
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. The rotation must comply with the arrow on the casing. 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.
9.2 Operating conditions
During operation, touching the impeller must not be possible.
Safety components must not be bypassed or put out of function.
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!
The fan may operate only within the limits declared on the nameplate. Operation above 50 Hz is allowed for the
fans accordingly designed and marked on the nameplate. The DVG/F400 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.
If the fan is used for smoke and heat extract (F400) in case of fire bridging of motor protective devices is neces-
sary to assure operation. Switch on max. speed even after eventual short supply cut off must be assured.
The fans were hot tested with frequency converter and sine filter. However, it is recommended to bridge eventual
converter in case of fire (to prevent any error at motor protection setting or operation). If frequency converter is
used in case of fire, PTC and any motor protection must be bridged and switch on max. speed even after even-
tual short supply cut off assured.

Maintenance/trouble setting
12 DVG 13.12.2016
In case of speed control via frequency converter - min. 20 Hz ÷ max. 50 Hz (rsp. 60 Hz, if declared for 60 Hz), make
sure that the voltage peaks on the connection terminals of the fan are lower than 1000 V and voltage rise velocity is
lower than 500 V/μs (IEC 34-17).
ATTENTION
Hazard with risk of additional costs
For speed control is recommended a combination of frequency converter and appropriate all-pole si-
nus filter (or minimum dU/dt filter). It is particularly important, if the supply cable is long, but also to
reduce the motor noise. It may only be abandoned, if proven, that the voltage peaks on the connection
terminals of the fan are lower than 1000 V and the voltage rise velocity is lower than 500 V/μs.
At frequency controlled units additional EMC protection of cable and service switch could be needed
(on request).
NOTE (DVG-EC ONLY)
0-10V speed control input.
Modbus controllable.
Fire mode to disable motor protection and controller protection in case of fire.
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.

DVG 13.12.2016 13
WARNING
Hazard from electrical voltage!
At maintenance and service observe:
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-cir-
cuit, 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 nec-
essary 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
neighbourhood. The gap between casing and base plate must be kept free for water drain and may not be cov-
ered by needles or leaves.
10.3 Maintenance, service
Basically the fan may be repaired at the manufacturer only! Exceptions are non-relevant components. For further in-
structions consult the manufacturer.

Maintenance/trouble setting
14 DVG 13.12.2016
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. You will find the address on the
back of these operating instructions.
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/F 400 there is a restriction to use only from the test lab allowed motors), impeller,
service switch, casing.
How to replace electric motor or impeller please see instruction IMO_DVG_Disassembly (on request).

DVG 13.12.2016 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.
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;
-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.

16 DVG 13.12.2016
Appendix 1: Mounting of service switch /
Mounting of vertical outlets at DVG-V
Properly mounted service switch, See I O, Section 7
cable protected inside tube

DVG 13.12.2016 17
Single speed motor up to inclusive 4
kW output power,
4 pole, 6 pole, 8 pole
Single speed motor,
DVG-H/V 400D4V/F400
Appendix 2: Wiring diagra s

18 DVG 13.12.2016
2 speed motor with separated windings,
4-6, 6-8 pole
1U, 1V, 1W…low speed
2U, 2V, 2W…high speed
2 speed motor in Dahlander connection,
4-8 pole
Y400V…low speed, YY400V…high speed
Single speed motor with star – delta starting
(motors with output power more than 4 kW)
Starting in Y, operation in D
Warning: it is not 2 speed otor!

DVG 13.12.2016 19
Appendix 3: Wiring diagrams DVG-EC 1~

20 DVG 13.12.2016
DVG 355-EC, DVG 450-EC – Wiring 1~, 230V, 50/ 0Hz……..27.11.2013
In case of using the fan for smoke and heat extraction, remove the red bridge 16-17 (fire mode) and connect control-
ler to fire central up to wiring scheme. Warning: removing this bridge without connecting to fire central and run-
ning the fan in fire mode causes no protection is active. Running in fire mode is allowed only in case of fire or during
periodical tests.
For fan speed setting with potentiometer remove bridge 9-10 and connect potentiometer ( >= 1kΩ) according to
wiring scheme.
For fan speed setting using AN1 input (0-10V): remove bridge 9-10 and connect 0-10V input according to wiring
scheme.
eplace bridge 18-19 with start – stop switch.
Controller default setup controls the fan speed with potentiometer or AN1 input.
Using internal regulator for fan speed control requires change of controller setting via MODBUS (see controller instruc-
tions). Using MODBUS for fan speed control requires change of controller setting via MODBUS (see controller instruc-
tions).
Minimum fan speed can be increased in setup via MODBUS. Maximum fan speed can be decreased in setup via
MODBUS.
More about settings please see controller instructions.
Terminals 4 to 23 (lower markings in the
connection box) are led from controller
out to outer connection box.
3 bridges are factory inserted to allow
test of fan without connecting control
cables.