Rosenberg EHND Ex User manual
Operating instructions
Ex-
Direct-driven radial fans with Normmotor Ex - geschützt
: . . 2 8 0 4 1 14
+38 0 4 4 2 5 5 1 9 49
+3 8 0 4 4 4 2 8 14 1 4
/ Contents . / Page
1. / Safety ..................................................... 2
2. / Description......................................................................... 4
3. / Condition of use ......................................... 4
4. , / Storage, Transport ............................ 5
5. / installation ............................................................................. 6
6. / operation .................................................................... 9
7. / Maintenance ...................................................... 10
8. / repair.................................................................................….13
9. , /
Customer Service, Address of manufacturer .................................... 16
10. : / appendix: weight chart..................16
!
. !
, " !
This operation instruction contains important technical advice and information about
safety. Therefore please pay attention to this operating manuel before unpacking, in-
stallation or any other work is undertaken on this fan.
EHND Ex / ERND Ex
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
2
1. / SAFETY
/ Industrial Safety Symbols
.
The following symbols refer to particular dangers or give advice for save operation.
! ! !
Caution! Danger! Safety Advise
! " " ##!
Danger from electric current or high voltage!
# $ !
Explosive atmosphere!
# !
Crush Danger
%# ! & %"'("# "& )%!
Danger! Do not step under hanging load!
& # , %# , $*#
Important, Information!
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
3
+ # / Saftey advice
Rosenberg-* ((, #
"'# " &# ) -
! -. , $& *. ! "-
&' &' $$ %". &-
! # , & "& ,
$* !' -
&'# &! .
Rosenberg Ex-protected fans are produced in accordance with
the latest technical standards and our quality assurance program
which includes material and function tests ensures that the final
product is of a high quality and durability. Never the less these
fans can be dangerous if they are not used and installed cor-
rectly, according to the instructions.
!. & & *' % %
&*' *" #!
Before installing and operating this fan please read this instruc-
tion manuel carefully !
−
-
, -
, (!, -
! )
−
", #, ,
!
−
( . . )
−Put the fan and other components to use only after they have been securely
mounted and fitted with protection guards to unit application (suitable guards can
be supplied upon request).
−Installation, electrical wiring, maintanance only by qualified engineers.
−The fan must be operated only in accordance with the performance data (
Data
plate) and the approved medium passing through.
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
4
2. / DESCRIPTION
$ -
! !. % -
„e“, -
T1 T3 ( T4 ), IP 54 /
F & ( 200)
( 225) . ,
90°. '
-
. &. (! -
! ! , !
#! !, ! ,
! - , ! !, -
.
Ex - protected high performance fans are especially developed / maufactured for the
use in areas containing explosive mediums. The used Normmotor are ignition pro-
tected standard „e“ Temperatur class T1 to T3 (T4 special made) protection class IP
54 / insulation class B or F, flanged model ( up to 200) or Leg - model (up to
225).The direction of rotation may be clockwise or anticlockwise and the casing can
be positioned at steps of 90
0
. As a special edition the radial fans may be delivered
epoxy coated. All fans are balanced staticially and dynamicially.Rotating and station-
ary components which could come in contact are made of materials that reduce dan-
ger of ignition and friction sparks.
3. +/0 1/+2 / CONDITIONS OF USE
3% ((, # #'# %#
(# :
−
!
−
!,
−
!
−
1,3 /³
− - 30 °C + 40 °C ( #! . -
).
−
95 %
−
! ! T1 T3.
−
! & ! 1 2
! 1 2
) ! -30 °C +40
°C.
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
5
Ex - protected radial fans with a Normmotor are suitable to draw
−clean air
−air with very little dust and grease content
−slightly aggressive gases and vapour (please refer to our engineers)
−Mediums up to a density of 1,3 kg/m
3
−mediums passing through with a temperature of -30°C up to +60°C
−mediums up to a max. humidity of 95%
−flamable gases and vapours of temperatur class T1 to T3 or T4 (
data plate)
−explosive atmosphere Zone 1 and 2
The motor cooling temperature must be between -30
0
C and +40
0
C
4. 3, 333 / STORAGE, TRANSPORT
•* ! ! ! !
.
−
(
( , , , ..).
•) - 30 °C + 40 °C.
•(
! ( ).
• +-
! (
).
−
, ! .
, , ,
, .
Store the fan in a dry and weather protectet place in ist original packing
•cover open paletts with a tarpaulin and protect the fan against dirt (i.e. chips,
stones, wires etc.)
•Storage temperaturebetwenn -30
0
C and +40
0
C
•With storage times of more than 1year please check the bearings by turning the
impeller before installation.
•Transport the fan with the necessary transport aids (weight as per enclosed chart)
−avoid turning and twisting the casing or damaging in any other way.
•
Use suitable assembling means as e.g. scaffolds conforming to specifications
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
6
%# ! & %"'("# "& )%!
Danger ! Do not step under hanging loads!
5. 45 / INSTALLATION
" #
-
!
Installation and electric works only by skilled and qulified
personnel and in accordance to health and saftey regula-
tions!
( ! -
! -
! DIN 31001 DIN 24167.
'
. (
!
!
Prevent falling objects and foreign matter from entering
inlet and outlet opening of the fan. The protection guards
must be certified to DIN 31001 or DIN 24167.
The unpacked fan has to be checked for transport dam-
ages. damaged fans may not be installed !
In hazardous areas connect components to a voltage
equalizing system.
•" !-!.
& !
•"
- ( ,
), !
!
•% !
• !
−
.
•Installation of the fans only at the angle-frames or at the angle mounted feet.
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
7
Do not bend fans!
•Installed in any position
At positions installed where things may fall into the cooling wing of the motor
there must be a protection guard.
•Use only selfsecuring screws.
•Electrical wiring according to technical wiring diagramm and reference of the mo-
tor manufacturer
−Wiring according to wire reference of the motor manufacturer
−Cabel must be connected to EX - terminal box (i.e „Waterback“)
( %"#:
−
( ) :
()
−
/
Motor protection by
−Bi - metallic relais: Bi - metallic relais for motor protection to be adjusted to the
nominal motor current (Data plate)
−
Voltage equalizing system to be connected according to reference.
−
# %&( -
& % !
Only threaded glands may be used!
( ( ! "
! "& -
! %.#
%. . ) '!
!
%& & "
'!#!
The motor protection through Bi - metal relais re-
cords all operating conditions and outside influ-
ences and disconnects the motor when a distur-
bance occurs.
A reset switch has to be conected at the side of the
main conector.
•( :
−
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
8
• (
)
•( !.
•.
( )
2-!&!
•Before control of direction of rotation
−Remove any foreign matter from the fan.
−Turn Impeller a few revolutions to test light - duty
−Protection guard (
accessories)
•Check direction of rotation as per direction arrow on the casing by short turning
on.
−Direction of rotation can be changed by transposing the 2 phases
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
9
6. 1/+20 / OPERATION
% &*' %#
% -
& *. & !
# & -
&'(" %'
% !
# ! % S1!
3 ( # ! %&-
!
- %
-' # ((,# -
) )
→
→→
→
( !
Operation of the fan only through qualified and supervised
workers under the known references!
Only commence operation when it is installed in accor-
dance with references !
The fan is designed for long term S1 operation.
The fan may not be operated by frequency controll!
When having to move large air volumes with minimum
pressure loss (because of incomplete ducting) a current
overload can occur (prohibited area of the fan curve)!
→
→→
→Thermal motor contact may activate!
•%" # !& %& &*'
−
!
−
#
−
−
() ,
-
•% &*' #
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
10
− & ( !, , ,
)
•Prepare fan for first operation
−correct mechanical installation
−electrical installation in accordance with regulations
−remove foreign matter from inlet and outlet area and from inside of fan
−protection guard (
accessories) installed, no entry to fan or fan being installed
out of arm sweep
−correct connection of the voltage equalizing system?
•Taking fan in operation
−observe correct function (smoothness of running, vibration, unbalance current,
consumption
# # "# "% %
%! 3-, (
"# , )%, ! !
By regular inspection of the fan inlet make sure debris has not
collected on the guard and clean if necessary !!
7. /+5 / MAINTENANCE
)& %# -
% & -
*.!
% &#:
-# %
'!
−%%# !
−) " '!# !
Maintenance of the fan only through qualified and super-
vised workers under the known references!
Before any maintenance work is undertaken:
−Stop fan in accordance to regulations and disconnect
all poles from mains supply
−Wait untill impeller is stationary !
−
Make sure that a restart is not possible
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
11
- # &' )-
! " &#. ) !) &-
#) "& ,- & .
&%- &. !'
"% )% %- .
"% %
900 min
-1
40000 !) !, 1400
min
-1
30000 !) ! 2800 min
-1
15000 !) !. !)
! %- - # % #
% 5 .
At normal operation conditions our fans are maintenance free.
When operating the fan at its limit maintenance work could be
necessary . The ball bearings have been lubricated for life. After
the life time lubricant inside the bearings is used up the bearings
must be exchanged.
The grease life time of the bearings is:
for normal use at 900 min
-1
40000 hours,
at 14000 min
-1
30000 hours,
at 2800 min
-1
15000 hours,
Independent of the working hours bearings should be changed
every 5 years.
•6 #
−
−
( ! -
)
•Cleaning fan
−Clean Inlet area
−Clean Impeller (if necessary lossen protection guard)
7# ! #. % !#( %-
, '%# % %,
#. *'( '( & (
&-# ( ) ! )
Use only commercial cleaning material paying attention to the
prescribed saftey measures and do not use any abrasive tools
(surface protection will be damaged)
" !
. &!
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
12
−
do not flood motor!
do not bend impeller, blades!
−Install protection guard
•( -
!
•After the life time lubricant inside the bearings is used up the bearings must be
exchanged in accordance to the maintenance instructions of the motor manufac-
turer.
•(.
−
?
−
?
−
! (
0 ) ?
−
?
−
?
•General inspection
−bearing clearence / play too large ?
−grease leaking on bearings ?
−surface protection affected ?
−unusual noise during operation?
−fan capacity for possible exceeded duct
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
13
8. 34 / REPAIR
3 %#
% & *. !
−
% :
-# % -
'! .
−%%# !
- ) " '!# !
Repair of the fan only through qualified and supervised
workers under the known references!
Please note the following before any repairs are under-
taken:
−
Stop fan in accordance to regulations and disconnect all
poles from mains supply
−Wait until impeller is stationary!
−
Make sure that a restart is not possible!
#. %&(
" !.
Only use original spare parts manufactured and supplied by
Rosenberg!
• !
−
%
−
1
−
2
- .
, .. -
!
−
3
−
/
−
/
−
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
14
• %"# :
−
2 #
−
% (
)
−
1
−
(
−
(
)
−
( #
•
. !
3 -
! 1 %
2 .
−
( (“"“ )
•Change Impeller
−dismount protection guard
−remove safety bolt from shaft
−losen impeller
In no case losen the impeller by hammering the impeller off the motor shaft
damage of the bearings and motor are possible
install new impeller
−tighten impeller screw
−tighten saftey screw at shaft
−Install protection guard at inlet area
•Change Motor
−disconnect elecrtical supply
−dismount impeller
−dismount motor screws and change motor
−install new motor
−install impeller
−connect electrical supply
•Check whether installation is correct
motor impeller must rotate freely
Check distance between rotating parts and stationary parts
−The minimum distance has to be 1% of the impeller diameter but not smaller
than 2 mm.
check whether direction of rotation is correct (see installation)
Operating instructions
Ex-
Direct-driven radial fans with standard motor explosion proof
15
9. 3, 73 37/0 /
SERVICE, ADDRESS OF PRODUCER
( & „Rosenberg“ -
.
, , -
:
Rosenberg - products are subject to steady quality controls and are in accor-
dance with valid regulations.
In case you have any questions with regard to our products please contact either
your constructor of your air handling unit or handling unit or directly to one of our dis-
tributors.
ROSENBERG VENTILATOREN
GMBH
Maybachstraße 1
D-74653 Künzelsau-Gaisbach
Tel.: 07940/142-0
Telefax: 07940/142-125
338 +3
.. 1. % 28 04114
) +38 044 255 19 49
4+38 044 428 14 14
10. : /2 2359
/03 7394 434 /
Appendix: Weight Tabell Radial fans with Normmotor
) / Type
/Weight
ca. kg
) / Type /
Weight
ca. kg
ERND 180 - 2 Ex
180 - 4 Ex
200 - 2 Ex
200 - 4 Ex
225 - 2 Ex
225 - 4 Ex
250 - 2 Ex
250 - 4 Ex
280 - 2 Ex
280 - 4 Ex
315 - 4 Ex
355 - 4 Ex
400 - 4 Ex
450 - 4 Ex
16
9
26
12
32
16
50
28
58
34
56
72
92
100
EHND 250 - 2 Ex
280 - 2 Ex
315 - 2 Ex
355 - 2 Ex
355 - 4 Ex
400 - 2 Ex
400 - 4 Ex
450 - 4 Ex
500 - 4 Ex
560 - 4 Ex
10
16
24
52
17
68
23
40
69
86
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1
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