Installation, Operating and Maintenance Instructions for Radial Roof Fans
DRH-Minivent
DRH
DRV-Minivent
DRV
DRVF
DRVF-H
 |
Installation, Operating and Maintenance Instructions for Radial Roof Fans DRH-Minivent DRH DRV-Minivent DRV DRVF DRVF-H |
1. Introduction
These installation, operation and maintenance directions (IOM) square measure
intended to be studied, understood and ascertained all told points by people who square measure
in charge of the Turbo – Lufttechnik Radial Roof Fan. Especially
important details for victimization the fan square measure one by one identified in these
instructions. the entire IOM thus ought to be scan once planning the
complete plant. thus the IOM square measure already connected to our order
confirmation. One copy ought to be unbroken close to the fan
The IOM ought to be created offered to any or all people that are accountable of the
fan. If they apprehend them well, in operation faults are often avoided and a troublefree
operation is bonded.
We suggest to scan the IOM rigorously before startup. we have a tendency to shall not be
liable for damages and breakdowns ensuing from the non-observance of
IOM's!
If any difficulties arise, please contact our business house in dangerous Hersfeld or
one of our technical advisers within the field.
We reserve all rights concerning the contents of those IOM's and technical
changes for technical improvement of our fans.
2. vary of application
Our radial roof fans were designed consistent with the state of the art and square measure
operationally reliable. they're subject to a top quality check and experimentation within the
factory and leave it in good condition. (Look at the management card connected
to the fan within the service bag)
The fan has completely been designed for traditional and cool air.
Any other application isn't as directed. accidental or improper use will lead
to risk for the user or third persons, and cause serious injury to the machine.
The risk is on the user's aspect.
This image beside the text of this IOM points to things wherever a
danger to life and limb of persons exists. Please observe the
instructions.
This image points to directives, rules and directions that square measure
important to the protection of the machine and alternative plant elements as
well because the correct sequence of the operations.
This image refers to tips for application and particularly helpful info.
They help you to optimally use your fan.
Installation, startup and maintenance of fans
Measurement, analysis and analysis of all information vital to the
operation (e.g.: Pressure, volume, unpitched sound, vibrations etc.)
balancing
spare elements service
Our staff guarantee skilled installation and startup of your fans.
Our technical advisers within the sales force and our field workers offer
individual recommendation to you and assist you if you wish to put orders.
4. Safety at work
The following directions for safety at work should be particularly ascertained :
The user needs to make certain that solely qualified workers work with the fan.
Necessary works might solely be administrated by properly trained workers, with
sufficient expertise and data of the relevant standards,
specifications, rules for interference of accidents and in operation
conditions. they need to be appointed by the person being chargeable for
the safety of the plant.
Among others they conjointly ought to have data regarding aid and native
rescue instrumentality.
The operator should commit himself to work the fan solely in a wonderful
condition.
Any person being accountable of assembly, activity, startup, operation and
maintenance of the fan got to have scan and understood the entire
IOM's.
One should make certain that no foreign objects (tools etc.) and water square measure in
the fan housing.
Before the primary experimentation you've got check if mechanical and electrical
protecting devices were properly put in.
If the fan is shipped while not protective devices the user needs to make certain
that they're mounted. protective devices not meeting DIN twenty four 617
standard got to be thought of as residual endangering.
After assembly or maintenance of the electrical installations, the
protective measures applied square measure to be tested (e.g.:earthing resistance).
Never bit the fan wheel whereas the fan is running.
In case of any malfunction, the fan is to be shifted right away, and
the reason behind the malfunction is to be known and eliminated.
Unauthorized modifications and changes effecting the protection of the fan square measure
prohibited.
Before beginning maintenance works the fan needs to be shifted and
secured with a lock to forestall unauthorized shift in. Protection
devices might solely be removed if the fan is out of action.
For all sorts of labor on the fan, as a rule it's to be out of action. The
impeller needs to be fast to forestall turning.
After repair works you've got to envision before beginning the fan, if all
protection devices were reinstalled.
5. Transport
The native safety rules apply to the transport of the fan in any case.
Avoid shocks by all means that throughout transport.
You have to form certain that the fan cannot slip and tilt.
To avoid damages caused by forced rupture and careless loading or unloading,
transport needs to be administrated rigorously and cautiously.
While unloading the fan, it should not be set down too roughly, since this will
lead to deformations of the blade, the housing, and damages of the motor
bearing.
We suggest you to go away the
appliance within the original packing till
the place of installation is reached, in
order to avoid any injury thanks to
transport.
Inclination angles of quite 60°
are impermissible.
The hoisting instrumentality and means that of transport used should be
designed for the load of the fan.
6. Scope of delivery
8. Construction options
Radial roof fans within the ten styles
Design DRH / DRH Minivent
with horizontal air exit and external rotor
motor.
Design DRVF-I
like kind DRVF, however in addition with noise
protection lining within the housing.
Design DRV / DRV-Minivent
with vertical air exit and external rotor motor.
Design DR-SDH
like kind DRH, however with horizontal air exit
through a spherical sound absorbent on the outlet
side.
Design DRVF
with vertical air exit and IEC commonplace motor
placed outside of the flow.
Design DR-SDV
like kind DRV, however with vertical air exit
through a spherical sound absorbent on the outlet
side.
Common construction details:
• Mounting base with influx nozzle and motor fastening plate manufactured from torsion
resistant zendzimier galvanized steel sheet
• Housing manufactured from Al-sheet metal
• Connecting flanges in keeping with DIN 24154, row 3
• Radial vane, one-side suction, dynamically balanced in keeping with ISO 1940,
quality grade G six.3, in welded version with powder coating, shade of color RAL
7030
(The impellers of the sizes 224 and 250 ar manufactured from galvanized steel sheet)
Motors for DRH- and DRV-Minivent, DRH and DRV 224E, additionally as DRH-E
and
DRV-E have a single-phase A.C. electrical condenser motor in external rotor motor
version and within thermal contacts, closed kind with moisture-proof and
tropics-proof insulation.
Application: For a blower output of liquid ecstasy. 40°C.
The types DRH and DRV 250 - 710
are equipped with rotary current or A.C. motors in external rotor motor
version, closed kind , with thermal contacts LED outward and with moistureproof
insulation
Application: For a blower output of liquid ecstasy. 40°C.
Motors for the styles DRVF and DRVF-H
The fan includes a rotary current-standard motor in keeping with ICE-standard in style
V1 while not thermal contacts
which is placed outside the blower output.
Application: kind DRVF
For a blower output of liquid ecstasy. 40°C.
Design DRVF-H
For a blower output of liquid ecstasy. 120°C in continuous operation:
• The devices ar fitted as normal with repair switches mounted on the skin of
the housing.
Conduit boxes will be delivered upon request.
9. Switch, motor protection
The external rotor motors of our radial roof fans ar, with the exception of the
explosion-proof varieties, equipped with thermal contacts.
The rim motors of the series DRVF and DRVF-H will be delivered with thermal
contacts, if desired.
These temperature-dependent management parts ar directly embedded into the coil
winding heads of the motors.
The switch capability is: four A at cos. = 0.6 250 V fifty cycle
6.3 A at cos. = 1.0 250 V fifty cycle
The thermal contacts shield the motor winding against overload (e.g. part failure, over
and beneath voltage, unduly high close temperature and high switch frequency).
To reach AN optimum protecting result, the thermal contacts should be switched into the
control line of the most contactor or the management switch.
When the contacts have responded, a restart could solely be applied by hand. this method
of protection is warranted with our BV-motor full protection mixtures.
In case of unskilled association or failure to use our switch devices, no pledge
will be given to the client.
The explosion-proof varieties and also the DRVF / DRVF-H - motors should be protected by AN
overcurrent protecting gear with current-dependently delayed triggering in keeping with the
valid
VDE rules.
The thermorelays of the motor protection ar to be adjusted to the several nominal
current of the motor.
Concerning the explosion-proof devices, we propose putting in the protecting switch
outside the unsafe location, since otherwise AN explosion-proof switch should be used.
An switch or a two-stage switch is comfortable for the Minivent kind.
10. Technical info
Performance curves will solely be unbroken if the fan has optimum influx.
11. Erection and assembly
The valid laws, standards, rules, directives etc. are to be
observed.
The fans ar appropriate for installation on the roof (in the open air).
Height of roof base should be a minimum of 350 millimeter.
They can be put in as freely uptake fans, or be connected to pipelines.
If a lover is mounted with the suction aspect on a pipeline, a compensating
piece (elastic association piece) is to be put in (stress-free installation).
We can provide in depth accessories for all fans.
Please see our catalog for it, or contact our technical advisers within the field
in the mill at unhealthy Hersfeld.
All radial roof fans ar delivered in ready-to-mount condition.
The installation will be applied simply and quick, if the subsequent points a
observed:
1. the bottom should be horizontal and even, and have sleek borders.
A waterproofing strip is to be inserted between the bottom edge and also the
foundation plate.
The devices of the categories DRH ANd DRV will be mounted with an
inclination of up to 20° .Twisted installation should be avoided, since
otherwise the vane cannot run freely, and scrapes the influx nozzle
The measurements of the bottom ar to be gathered from the corresponding
pages of our catalog .
2. To avoid undesirable condensation on the within of the bottom plate, we
recommend insulating it.
3. Fastening is applied by means that of four polygon insane. For waterproofing, always
4 leaden waterproofing washers and four Korrex protective caps ar closed in in th
attached bag.
4. whereas mounting automatic waterproofing caps on the sound absorbent base one
must observe that the flap shaft is in parallel with the connecting links.
Important notes for the installation of our fans
For maintenance and repair works one should guarantee unobstructed access to th
fan at any time.
Therefore the subsequent has got to be observed:
1) The fan should be accessible and dismountable while not excessive
expenditure of labor. what is more there should be comfortable clear area
around the fan to hold out maintenance works.
2) Our pledge when components replacements or repair works won't cowl
additional prices caused by the nonconformity of item 1; these are
charged to the client.
Electrical association
Connection has got to be created by AN skilled worker in keeping with VDE rules
Observe the indications on the nameplate!
Compare mains voltage!
The motor is to be connected in keeping with the closed in association diagra
(motor management card).
If cable entries within the passage box or repair switches don't seem to be used, they hav
to be rigorously fastened to stop dirt and wetness from getting into the
conduit box. Tighten all contact screws and insane properly, to avoid too hig
transition resistance.
Screwed cable glands have to be compelled to be equipped with pull-relief.
• the doorway of the feeding cables into the passage box or the repair
switch, from below or from the aspect, severally, should be applied
impermeably to water.
All roof fans (except for the KDRVF sorts and Eexe II T 3-devices) area unit
fitted as normal with repair switches that perform the emergency stop
function and absolutely suits the laws consistent with VDE 0113 -
IEC 204 and VBG four, as a result of their outside and freely accessible
arrangement in addition as their special instrumentality (e.g. for 3-lock interlocking
device, ZLT connecting chance etc.).
The electrical association to the repair switch (or the passage box,
respectively.) might solely be distributed by associate degree skilled worker. Please observe th
connection diagram of the control card connected to each device
here.
The values measured on the spot should be entered within the management card.
The driving motors area unit delivered for the subsequent voltages:
1. Rotary current-motors, with a speed (also ex-proof) for 230/400 potential unit.
The electrical association is distributed to associate degree operative voltage of
230 potential unit for delta association, associate degreed to an operative voltage of four hundred potential unit
for star association.
Motors for different operative voltages should be ordered individually.
2. Rotary current-motors, pole-changing consistent with Dahlander: for four hundred
Volt operative voltage. These motors area unit equipped with a double star-st
winding.
Motors for operative voltages aside from four hundred potential unit should be ordered
Separately
Rotary current-motors, with 2 separate windings: for four hundred potential unit
operating voltage. Motors for operational voltages aside from four hundred potential unit
must be ordered on an individual basis
4. A.C. motors, for 230 potential unit.
5. Radial roof fans of the Minivent kind area unit equipped with A.C. motors fo
230 Volt.
6. All driving motors of the radial roof fans DRH and DRV area unit
maintenance-free. Regreasing is senseless.
Arrangement of the passage box or
the repair switch, severally
Figure 1
Fastening by suggests that of associate degree
anchor bolt of the roof fan
Figure 2
Fastening at the aspect on the
folded back flat solid, holes
are out there
Figure 3
Fastening on the roof base
12. experiment / startup
BEFORE beginning THE experiment and also the INITIAL
OPERATION, IN ANY CASE OBSERVE THE SECTION SAFETY AT
WORK once more.
One should proceed as follows:
Before starting-up the radial roof fan you've got to form certain that no foreign
objects (tools, dirt etc.) were left in it.
-Check if all screw joints area unit tight.
For open recess and outlet a guard should be mounted. make certain it's.
The connecting items on the suction aspect yet because the whole passage system
must be fully mounted.
After having connected the fan motor you've got to ascertain by quickly switch
on and off if the motor turns to the right direction:
When trying from the motor aspect the motor needs to communicate the left. (If you
look from the recess of the vane, it's to show to the right). The direction
of rotation should be identical as indicated by the arrow.
If the direction of rotation is wrong, the poles of the motor got to be
changed.
(change phases within the repair switch, the passage box or the switch cupboard.)
The vane should on no account scrape the influx nozzle.
Measure the present absorption of the motor and compare it with the GHB.
current consumption on the plate.
The impellers of our fans were balanced consistent with ISO 1940 quality G half-dozen.3.
Since, thanks to the system, the fan will be excited to start out moving once its
installation, one should make certain that a vibration-damped operation according
to VDI 2056 machine cluster T is bonded once the fan is ready into operation.
This particularly applies to fans with many speeds or variable speed, where
vibrations got to be measured over the whole speed vary.
13. Breakdown of the operations
If vibrations arise within the curse of your time, they'll have the subsequent reasons:
a) Caking has shaped on the blades of the vane.
Remedy: Clean vane, retighten the screws.
b) The vane is full of influence of corrosion.Remedy: Clean and
rebalance the vane, unless heavily unsound. Retighten the screws.
Further malfunctions which can arise
c) Fan doesn't work.
Remedy: check power provide, check motor
d) vane scrapes another surface.
Remedy: examine the vane space for foreign objects, check motor
fastening.
e) Motor protection is discharged throughout ventilating operation or experiment.
Remedy: Check if the motor turns laborious (bearing and winding damaged),
check power provide.
Fan doesn't reach its practical performances demanded.
Remedy: Clean vane, check passage system (are all flaps open?), have
any changes been created within the passage system?
14. General maintenance
In regular intervals, however a minimum of once a year, the fan ought to be checked by a
specialized company.
Test things are: correct functioning
Readiness for service
Bolted connections
Vibration-damped run
Motor/current consumption (see section maintenance,
motor)
If needed, the fan needs to be cleansed, maintained and repaired.
If the fan isn't continuously used, it's to run a minimum of
1 hour each two months around. this can be vital, as a result of the motor
bearings suffer if not used for a protracted time.
All examinations yet as maintenance and repair works ought to be
recorded during a take a look at book.
15. Description of the vane
You can notice an in depth description of the vane and of the motor on page seven.
Replacement of rotor set
If the rotor set should be changed, the subsequent order is to be observed:
a) Current provide from the building to the fan is to be disconnected.
b) Motor cable is to be disconnected.
c) Outside and within overlay should be removed.
d) Motor fastening is to be detached from stud bolts.
e) Motor plate with motor and vane is to be taken out.
f) Complete unit is to be came back - freight paid - to the producing
company.
Reinstallation of the impeller:
- One should make certain that motor and vane don't seem to be separated.
- Before beginning the fan one should check whether or not the vane will be simply
revolved by hand, and doesn't scrape the other surface.
Maintenance of the motor
The motor bearings area unit life-greased. they're full of a special grease within the
manufacturing company. The service lifetime of this grease is ten 000 to twenty 000 h.
After any more break, it's advisable to hold out associate degree scrutiny of the
bearings before beginning. this is applicable to bran-new motors, as well.This is
especially vital if noises occur, thanks to congealment of the grease within the
bearing.
Also talk to the assembly, operational and maintenance directions of the
motor manufacturer.
(Please request on an individual basis, if needed.)
17. Storage of spare components
All spare and carrying components that can't be provided at intervals a brief amount of
time ought to be taken available. Production losses area unit sometimes dearer
than the prices of such a relation.
We would prefer to indicate notably, that spare components not provided by USA area unit
were not checked and discharged by USA. The manufacturer shall not be to blame for
damages caused by the utilization of not original components and accessories.
