System air DVV-XS User manual

DVV/DVVI-XS, XM, XL, XP
Installation and Operating Instructions for

English o rigi n a l v e r si on

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.
Previous issues:
IMO_DVV_XS_XL-dt-en_07_10_2013
IMO_DVV-dt-en-se-ru_15_01_2014
IMO_DVV_T_06_11_2012
IMO_DVV_en_18_08_2015-Am_23_12_2015
IMO_DVV_en_13_02_2017_Am_10_05_2017
- Changed service switches up to 4 kW
- Changed standards and Declarations of conformity
Föregående version: -
Ранее инструкция: -

DVV 16.08.2021 3
Contents
1General information...................................4
1.1 List of information ........................................4
1.1.1 Specific safety symbols .................................4
1.1.2 List of instructions for action ........................5
1.2 Notes on the documentation........................ 5
2Important 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............................6
2.3 Intended use.................................................6
2.4 Improper use ................................................6
3Warranty.................................................... 6
4Transport, storage......................................7
4.1 Transport ......................................................7
4.2 Storage..........................................................7
5Description.................................................8
5.1 Technical data............................................... 8
5.2 Dimensions ...................................................8
6Installation .................................................8
6.1 Safety information ........................................ 8
6.2 Preconditions for installation........................9
6.3 Installation ....................................................9
7Electrical connection ..................................9
7.1 Residual current circuit breaker .................10
7.2 Connection of thermal protection..............10
8Commissioning ......................................... 10
8.1 Preconditions.............................................. 10
8.2 Safety elements...........................................11
8.3 Commissioning............................................11
9Operation................................................. 11
9.1 Safety notes ................................................11
9.2 Operating conditions...................................12
9.3 Operation/use.............................................12
10 Maintenance/troubleshooting ................. 13
10.1 Malfunctions and troubleshooting
(generally) ...................................................14
10.2 Cleaning.......................................................14
10.3 Maintenance, service..................................14
10.4 Spare parts ..................................................15
11 Uninstalling/dismounting......................... 16
12 Disposal.................................................... 16
12.1 Disposal of the fan ......................................16
12.2 Disposal of packaging..................................16
Appendix 1: Dimensions...................................... 17
Appendix 2: Installation examples ...................... 18
Appendix 3: Installation faults ............................ 19
Appendix 4: Wiring diagrams .............................. 20
Appendix 5: Connection possibilities................... 21
EC-Declaration of Conf. DVV/DVVI F400, F600 .... 22
EC-Declaration of Conf. DVV/120, DVV/T............ 23
UKCA-Decl. of Conf. DVV/DVVI F400, F600.......... 24
UKCA-Declaration of Conf. DVV/120, DVV/T....... 25

General information
4 DVV 16.08.2021
1General 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
DANGER
Hazard of injurie from rotating parts, if not covered with protective grid!
This warning identifies situations with a danger for life from touching impeller. Failure to comply with this
warning leads to the risk of death or serious injuries.
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 bursting parts!
This warning identifies situations with a danger from bursting parts. Failure to comply with this warning
potentially leads to the risk of 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.

Important safety information
DVV 16.08.2021 5
1.1.2 List of instructions for action
Instruction for action
Carry out this action.
(if applicable, further action)
1.2 Notes on the documentation
WARNING
Hazard as a result of improper dealing with the fan
These operating instructions describe safe use of the device.
Read the operating instructions carefully! The personnel dealing with the fan must read and under-
stand the operating instructions.
Keep the operating instructions with the device. They must be permanently available at the place of
use.
2Important 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. Protective working gloves, protective working shoes, safety goggles, safety helmet are
part of personal protective equipment. Depending on object, additional protective equipment may be necessary.
Safety components must not be by-passed or put out of function.
Keep all the warning signs and nameplates on the fan complete and readable.
Regularly instruct the personnel about safety-conscious behaviour. Requirements for personnel –see 2.2. The ap-
pliance is not to be used by persons (including children) with reduced physical, sensory or mental capabilities.
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/EC only relates to these products when they have been connected directly to the customary
power supply.
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 electro technically edu-
cated person. This person must know the relevant safety rules to recognise and avoid potentially risks.

Warranty
6 DVV 16.08.2021
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/DVVI (I = sound insulated) fans are intended for installation in ventilation systems, outside buildings only (on
roofs). They may be installed either in duct systems or as a free sucking fan over a nozzle and a sucking side protection
grid.
DVV/DVVI 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 level) and a
maximum air moisture of 80 %.
Daily ventilation of medium -20 up to 120°C, continuous operation. On request motors can be equipped with elec-
tric heaters to meet lower temperatures.
Smoke and heat extract roof fans DVV, DVVI/F400 respectively F600 are intended to exhaust hot gases up to
400°C/120 min (F400/120, F400/90, F300, F200) respectively up to 600°C/120 min. 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. Snow load classification: SL
0, suitable for installation only on the top of heated buildings, considering possible heat transfer. With FSL acces-
sory installation on top of non-heated buildings up to snow load class SL 1000 is allowed. In case of fire all motor
protective devices and controls must be bridged to guarantee functional capability (connection direct to mains).
Versions DVV-T and DVV/120 shall 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 medium 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 DVV/F400, /F600, -T, /120 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).
3Warranty
Warranty for our products shall be determined according to the contractual agreements, our quotations and, as a sup-
plement, our General terms and Conditions of Business. Warranty claims shall presuppose that the products are cor-
rectly connected, operated and used accordingly to data sheets, and regularly maintained.

Transport, storage
DVV 16.08.2021 7
4Transport, storage
4.1 Transport
Each fan leaves our plant in an electrically and mechanically proper condition. The fans are delivered in wooden
crates. We recommend transporting the fans to the installation site in original packaging.
WARNING
Hazard of impact if the fan falls down!
Load and unload the fan carefully in order to avoid possible damage.
Pay attention to the weight and dimensions of the packaging. The weight of the fan is visible from the
nameplate.
CAUTION
Danger from cutting edges!
Wear protective working gloves when unpacking.
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.
WARNING
Electrical hazard from damaged connection cable or connections
Do not use the connection cable, service switch or impeller for transport or hoisting.
WARNING
Hazard of impact if the device falls down!
Transport the device carefully and with appropriate hoisting device!
Wear a safety helmet and safety goggles!
Only put the fan at unpacking on its base plate.
At manual transport observe allowed human lifting respectively carrying forces (see weight on the name plate).
Avoid impacts and distortion of the base plate and other parts of housing.
4.2 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 protective working 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.

Description
8 DVV 16.08.2021
5Description
The fan structure is completely made of metal parts only. The casing is manufactured from seawater resistant alumin-
ium. The base plate with nozzle consists of pre-galvanized steel. Impellers with backward-curved blades are welded
and galvanized respectively made of stainless steel (F600). They are fastened together with hub and secured screw
directly on to the motor shaft. Dynamically balanced to BV-3, ISO 14694.
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 via cooling duct. All sizes are serially equipped with service switch.
Electric motor
Connection
Efficiency class, serially:
Single speed (4 pole, 6 pole, 8 pole)
Y or D
IE2 or IE3
Two speed (4-6, 6-8, 8-12)
Y/Y
IE1
Two speed (4-8, 6-12) Dahlander
YY/Y
IE1
Additional sound attenuator HSDV is available on request, recommended factory mounted as DVVI fan. DVV/DVVI
fans can be also equipped with accessory FSL (factory mounted recommended).
5.1 Technical data
Size
DVV
XS, XM,
XL, XP
Max. synchron
RPM at 50 or 60
Hz for DVV/F400,
DVV/F600**
Max. nominal
power at
50 Hz*/**
Impeller
diameter
Max.
weight**
DVV/F400
DVV/F600
Max.
sound power
level inlet
Max.
sound power
level
outlet***
min-1
kW
mm
kg
dB(A)
dB(A)
560-XS
1500
2,2
520
102
83
84
560-XM
1500
2,2
570
104
86
87
560-XL
1500
2,2
570
109
90
90
630
1500
5,5
650
168
97
98
800
1500
18,5
820
432
104
106
1000
1500
30
975
548
105
109
* Motor data (input power P1, current, RPM) and data of the fan are visible on the name plate and on the test
protocol.
**DVV-T and DVV/120 may vary from these data due to special motors
** *Without HSDV
5.2 Dimensions
Please see Appendix 1 or www.systemair.com.
6Installation
6.1 Safety information
WARNING
Hazard from falling parts!
Check the base/roof before installation for load capacity/strength.
When selecting the hoisting device and fitting material observe the weight, tendency to vibrations and
shear forces (weight information on the nameplate).
CAUTION
Danger from cutting edges!
At installation works wear protective working gloves.

Electrical connection
DVV 16.08.2021 9
6.2 Preconditions for installation
DVV fans must be installed on roofs, outside fire zone (DVV/F for exhausting from fire zone).
The fans must be mounted on a flat, horizontal roof base (<10 mm/m) with height of min. 250 mm over the roof
top (motor shaft 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.
During installation the site must be protected from dust, moisture and weather influences.
6.3 Installation
Ensure secure access to the fan for maintenance and service.
Installation examples up to Appendix 2. Installation faults see Appendix 3.
Fit the contact surface between base plate and roof base with temperature resistant sealing tape for DVV/F or
foam sealing tape for DVV/120, DVV-T. Systemair roof bases (for smoke extract fans marked with /F) are delivered
with appropriate sealing tape.
WARNING
Hazard from mechanical distortions!
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.
Avoid distortions of the casing at installation.
The fans shall be fixed to the base with 4 screws in the corners.
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 EUROVENT, dimensions see Appendix 1 or www.systemair.com.
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 (for F400 and F600 only: appropriate flexible connection should take eventual
thermal extension of connecting parts. Flexible connection shall comply temperature/time class of the fan
(400°C/2h respectively 600°C/2h); also as certified Systemair accessory available).
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.
7Electrical connection
The wiring diagram is placed inside the cover of service switch (also in the test protocol). The quality and installation
of cables for electrical connection must ensure uninterrupted energy supply, even in case of fire. Inside fire zone use

Commissioning
10 DVV 16.08.2021
only certified cable. The electric cable must not be in contact with or be fastened to the casing of the fan (F400, F600
only, high temperature!). Connecting possibility see Appendix 5. Electrical data on the fan nameplate must comply
with the provided mains connection. Equivalent motors from different suppliers may have slightly different nominal
data than in catalogue.
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 diagram see Appendix 4.
Motor protection must be provided by the installer.
WARNING
Hazard from electrical voltage!
Electrical connection only by a trained electrician respectively trained and instructed qualified person-
nel!
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, F600). Drill a hole into the handle
in the “on” position and provide with a padlock (not supplied with the fan). See Appendix 4.
Place the supply cable.
7.1 Residual current circuit breaker
Use universal RCDs type B or B+ in case of speed control with frequency converter.
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!
8Commissioning
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.

Operation
DVV 16.08.2021 11
The safety devices have been fitted (protection against contact with rotating impeller).
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.
Provided mains connection complies with the data on the nameplate.
The current (from the nameplate) does not exceed the mains data.
8.2 Safety elements
DANGER
Hazard from injurie from rotating parts, if not covered with protective grid!
The outlet protective grid is serially provided.
Check if the safety elements e.g. protective grids are fastened.
8.3 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 casing. If wrong, swap two phases.
-leave the fan running, check, if running smoothly (eventual vibrations and noise);
-measure current with appropriate instrument (it may exceed nominal current by a max. 5%);
-tightness of all joints.
Fill in the attached test protocol of the fan and submit it in case of warranty claim.
9Operation
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.

Operation
12 DVV 16.08.2021
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 DVV/F400, F600 fan may be approved for 60 Hz oper-
ation, 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, F600) in case of fire bridging of motor protective devices is
necessary 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 without filter. However, it is recommended to bridge even-
tual 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.
In case of speed control via frequency converter - min. 20 Hz ÷ max. 50 Hz (rsp. 60 Hz, if declared 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 aban-
doned, if proven, that the voltage peaks on the connection terminals of the fan are inside stress category B-C (mod-
erate-severe) up to EN 60034-18-41. Practically, the peaks shall be lower than limits ULL 2550 V, ULG 1800 V and the
rise time longer than 0,5 μs. Not observing this, the motor life time could be shorter.
ATTENTION
Hazard with risk of additional costs
At frequency controlled units additional EMC protection of cable from motor to service switch and ser-
vice switch itself could be needed (on request). Some single speed items F400 and /120 in the range 7,5
to 30 kW with EMC protection are already serially available –marking EMC.
Subsequently fitting of EMC shielded cable from motor to connection box/service switch is connected
with disassembly of the fan!
In the DVV fans there are not any two speed motors in Y230V/D400V connection built-in; two speed
motors are only in Y400V/Y400V or Y400V/YY400V connection.
Small single speed motors (Y400V) are in motor connection box connected in Y ; it is impossible to
change the connection to D230V without disassembly of the fan (for eventual 3x230V frequency con-
verter).
NOTE
At single speed motors with nominal power from incl. 5,5 kW (D400V) we recommend “star – delta” start-
ing. For this purpose all 7 wires are led to connection box/service switch. Not applicable at all items with
marking EMC, which are intended for frequency converter operation.
9.3 Operation/use
Only use the fan in accordance with this operating instruction and the operating instructions of motor.
Control the fan during operation for correct function.
Switch the fan off as planned.

Maintenance/troubleshooting
DVV 16.08.2021 13
WARNING
Hazard from electrical voltage and flying parts!
Errors occurring can lead to personal and/or property damage!
Switch the fan immediately off as planned:
In cases of a non-typical noise from bearings, vibrations, pressure pulsation.
In case of overcurrent, overvoltage or temperature (nameplate). Then try to find the reason - see
chapter 10.
10 Maintenance/troubleshooting
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 at maintenance/troubleshooting, cleaning and service!
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
Hazard from injurie from rotating parts, if not covered with protective grid!
The outlet protective grid is serially provided. If needed to remove protective grids temporarily, assure:
Electrical circuit must be interrupted and secured against restarting.
Impeller must stand still.
Immediately after finished work fix protective grids.
CAUTION
Danger from hot surfaces!
During maintenance/troubleshooting and cleaning wear protective working gloves to prevent contact
with hot motor!

Maintenance/troubleshooting
14 DVV 16.08.2021
10.1 Malfunctions and troubleshooting (generally)
Possible reasons
Action
The ventilator
does not run
Connection to the mains fault.
Thermal protection triggers.
Motor fault.
Check connection to the mains and thermal protection. If
ok. check electric motor (winding resistance, resistance to
ground). If two speed motor (4-6, 6-8, 8-12, 4-8, 6-12) is
installed, check all speed. If necessary get the electric mo-
tor repaired.
Air volume is
too low
Wrong direction of rotation.
Too high pressure drop in system.
Obstacles in duct.
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.
Thermal pro-
tection of the
fan switches
off
Short-circuit.
Damage to the bearings.
Impeller blocked or grinding.
Compare connection with wiring diagram. Compare the
data of electric motor with setting of thermal protection.
If ok. check power supply and electric motor. 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 re-
paired.
Loose fit on the base plate or mo-
tor support.
Tighten the bolts, look for the cause of vibrations.
Vibrations
The actual pressure drop of the
system is higher than supposed,
the fan could operate in an unsta-
ble area of the fan curve.
Check operating point and system design. Consult cus-
tomer 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 and impeller clean and clean them if necessary with a brush (do not use a steel brush or high-pres-
sure 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 covered 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.
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 –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).

Maintenance/troubleshooting
DVV 16.08.2021 15
VDMA
24186-1
Description
Maintenance interval
Monthly
Every
3 months
Once
a year
Fan and electric motor of the fan
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
×
Test of hatch opening/closing
Check the joints of actuator and hatch cover are
properly fastened
×
Check if smoothly opens/closes
×
Check the safety measures (protective elements,
signs, guards)
×
Accessories (air ducts, air louvers, flaps, sound at-
tenuators)
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 nameplate or in the
test protocol.
Spare parts: electric motor (there is a restriction to use only from the test lab allowed motors), impeller, service
switch, casing.
How to replace electric motor, impeller or actuator - please contact manufacturer for instructions.

Uninstalling/dismounting
16 DVV 16.08.2021
11 Uninstalling/dismounting
WARNING
Hazard from electrical voltage!
Disconnection 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 working 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. 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 packaging
Provide for the recycling of material. Consider the national regulation.

DVV 16.08.2021 17
Appendix 1: Dimensions

18 DVV 16.08.2021
Appendix 2: Installation examples

DVV 16.08.2021 19
1- Don`t turn the cooling ducts towards each other
2- Mount the fan on the horizontal base (base pitch <10 mm/m)
3- Don`t fix the cable on the casing
4- Enable free cooling air inlet and free outlet (DVV/F400 shown)
Appendix 3: Installation faults

20 DVV 16.08.2021
Single speed motor <= 4 kW
Single speed motor >= 5,5 kW
Y 400V…STARTING, D 400V…OPERATION
Two speed motor
4-6, 6-8, 8-12
1U, 1V, 1W…LOW SPEED, 2U, 2V, 2W…HIGH SPEED
Dahlander 4-8, 6-12
Y 400V…LOW SPEED, YY 400V…HIGH SPEED
Single speed motor intended for freq. con. operation (marking EMC)
See IMO, Chapter 7
Prewired in D inside fan, P2<=18,5 kW
All wires led out to service switch; to connect in D on site P2>=22 kW
95492 DVV 1000D4-XM/F400 IE2 EMC; 95448 DVV 1000D4-XM/F400
IE3 EMC; 95486 DVV 1000D4-XM/120 IE2 EMC; 95442 DVV 1000D4-
XM/120 IE3 EMC
95493 DVV 1000D4-XP/F400 IE2 EMC; 95449 DVV 1000D4-XP/F400 IE3
EMC; 95487 DVV 1000D4-XP/120 IE2 EMC; 95443 DVV 1000D4-XP/120
IE3 EMC
930712
MZ0551801582
Appendix 4: Wiring diagrams