Nederman RBU 1300 User manual

User Manual
Vacuum Unit
RBU
Originaluser manual
EN USER MANUAL
Translation of originaluser manual
CS NÁVOD K OBSLUZE
DA BRUGERVEJLEDN NG
DE BED ENUNGSANLE TUNG
ES MANUAL DE USUAR O
F KÄYTTÖOHJE
FR MANUEL DE L'UT L SATEUR
T MANUALE DELL'UTENTE
NL GEBRU KERSHANDLE D NG
NO BRUKERMANUAL
PL NSTRUKCJA OBSŁUG
PT MANUAL DO UT L ZADOR
RU РУКОВОДСТВО ПО ЭКСПЛУАТАЦИИ
SV ANVÄNDARMANUAL
ZH 使用手册
2022-10-17 144207 (09)
EN
CS
DA
DE
ES
FI
FR
IT
NL
NO
PL
PT
RU
SV
H

RBU
Trace back information:
Workspace Main version a67
Checked in 2022-10-17
Skribenta version 5.5.022

RBU
Declaration of Conformity ........................................................ 4
Figures .......................................................................................... 8
English ........................................................................................... 13
Český ............................................................................................. 28
Dansk ............................................................................................. 44
Deutch ........................................................................................... 60
Español .......................................................................................... 77
Suomi ............................................................................................ 94
Français .........................................................................................109
taliano .......................................................................................... 126
Nederlands ................................................................................... 143
Norsk ............................................................................................. 160
Polski ............................................................................................. 175
Português ..................................................................................... 192
Русский ...........................................................................................209
Svenska .........................................................................................226
中文 ................................................................................................ 241
3

RBU
Declaration of Conformity
EN English
Declaration of Conformity
We, AB Ph. Nederman & Co., declare under our sole responsibility that
the Nederman product:
RBU (Part No. **, and stated versions of **) to which this declaration
relates, is in conformity with all the relevant provisions of the following
directives and standards:
Directives
2014/30/EU, 2006/42/EC
Standards
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
The name and signature at the end of this document is the person re-
sponsible for both the declaration of conformity and the technical file.
CS Český
Prohlášení o Shodě
My, společnost AB Ph. Nederman & Co., prohlašujeme na svou zodpo-
vědnost, že výrobek Nederman:
RBU (díl č. **, a uvedla, verze **), ke kterému se toto prohlášení vztahu-
je, je v souladu se všemi příslušnými ustanoveními následujících směr-
nic a norem:
Směrnice
2014/30/EU, 2006/42/EC
Normy
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Na konci tohoto dokumentu je jméno a podpis osoby zodpovědné za
prohlášení o shodě a soubor technické dokumentace.
DA Dansk
Overensstemmelseserklæring
AB Ph. Nederman & Co., erklærer som eneansvarlige, at følgende pro-
dukt fra Nederman:
RBU (Artikel nr. **, og erklærede versioner af **), som denne erklæring
vedrører, er i overensstemmelse med alle de relevante bestemmelser i
de følgende direktiver og standarder:
Direktiver
2014/30/EU, 2006/42/EC
Standarder
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Navnet og underskriften sidst i dette dokument tilhører den person,
der er ansvarlig for såvel overensstemmelseserklæringen som den tek-
niske dokumentation.
DE Deutch
Konformitätserklärung
Wir, AB Ph. Nederman & Co., erklären in alleiniger Verantwortung, dass
das Nederman Produkt:
RBU (Art.-Nr. **, und bauartgleiche Versionen **), auf welches sich die-
se Erklärung bezieht, mit allen einschlägigen Bestimmungen der fol-
genden Richtlinien und Normen übereinstimmt:
Richtlinien
2014/30/EU, 2006/42/EC
Standards
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Der Name und die Unterschrift am Ende dieses Dokuments sind die für
die Konformitätserklärung und die technischen Unterlagen verant-
wortlichen Personen.
ES Español
Declaración de Conformidad
Nosotros, AB Ph. Nederman & Co., declaramos bajo nuestra exclusiva
responsabilidad que el producto de Nederman,
RBU (Ref. n.º ** y las versiones indicadas de **), al que hace referencia
esta declaración, cumple con todas las provisiones relevantes de las Di-
rectivas y normas que se indican a continuación:
Directivas
2014/30/EU, 2006/42/EC
Normas
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
El nombre y firma que figuran al final de este documento corresponden
a la persona responsable, tanto de la declaración como de la ficha técni-
ca.
FI Suomi
Vaatimustenmukaisuusvakuutus
Me, AB Ph. Nederman & Co., vakuutamme yksinomaan omalla vastuul-
lamme, että Nederman tuote:
RBU (tuotenro ** ja **:n määritetyt versiot), jota tämä vakuutus kos-
kee, on seuraavien direktiivien ja standardien kaikkien sovellettavien
määräysten mukainen:
Direktiivit
2014/30/EU, 2006/42/EC
Standardit
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Tämä asiakirjan lopussa oleva nimi ja allekirjoitus ovat henkilön, joka
vastaa sekä vaatimuksenmukaisuusvakuutuksesta että teknisestä tie-
dostosta.
4

RBU
FR Français
Déclaration de Conformité
Nous, AB Ph. Nederman & Co., déclarons sous notre seule responsabili-
té que le produit Nederman :
RBU (réf. ** et versions indiquées de **) auquel fait référence la pré-
sente déclaration est en conformité avec toutes les dispositions appli-
cables des directives et normes suivantes :
Directives
2014/30/EU, 2006/42/EC
Normes
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Le nom et la signature à la fin de ce document sont ceux de la personne
responsable de la déclaration de conformité et du fichier technique.
IT Italiano
Dichiarazione di Conformità
AB Ph. Nederman & Co., dichiara sotto la propria esclusiva responsabili-
tà che il prodotto Nederman:
RBU (Art. N. **, e le versioni di detto **) al quale è relativa la presente
dichiarazione, è conforme alle disposizioni delle seguenti direttive e
normative:
Direttive
2014/30/EU, 2006/42/EC
Normative
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
l nome e la firma in calce al presente documento appartengono al re-
sponsabile della dichiarazione di conformità e della documentazione
tecnica.
NL Nederlands
Conformiteitsverklaring
Wij ,AB Ph. Nederman & Co., verklaren onder onze verantwoordelijkheid
dat het Nederman product:
RBU (artikelnr. **, en vermelde uitvoeringen van **) waarop deze ver-
klaring betrekking heeft, in overeenstemming is met alle relevante be-
palingen van de volgende richtlijnen en normen:
Richtlijnen
2014/30/EU, 2006/42/EC
Normen
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Naam en handtekening onder dit document zijn van degene die verant-
woordelijk is voor zowel de Verklaring van Overeenstemming als het
technische document.
NO Norsk
Erklæring om Överensstemmelse
Vi, AB Ph. Nederman & Co., erklærer under vårt eneste ansvar at Neder-
man-produktet:
RBU (delenr. **, og angitte versjoner av **) som denne erklæringen
vedrører, er i samsvar med alle relevante bestemmelser i følgende di-
rektiver og standarder:
Direktiver
2014/30/EU, 2006/42/EC
Standarder
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Navnet og signaturen på slutten av dette dokumentet er den som er
ansvarlig for både samsvarserklæringen og den tekniske filen.
PL Polski
Deklaracja godności
My, AB Ph. Nederman & Co. niniejszym oświadczamy na naszą własną
odpowiedzialność, że Nederman produkt:
RBU [nr części ** oraz wskazane wersje **], który jest przedmiotem ni-
niejszej deklaracji, spełnia wszystkie odpowiednie wymagania wymie-
nionych niżej dyrektyw i norm:
Dyrektywy
2014/30/EU, 2006/42/EC
Normy
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Na końcu niniejszego dokumentu znajdują się imię i nazwisko oraz pod-
pis osoby odpowiedzialnej za deklarację zgodności oraz dokumentację
techniczną.
PT Português
Declaração de Conformidade
Nós, da AB Ph. Nederman & Co., declaramos sob nossa responsabilidade
exclusiva que o Nederman produto:
RBU (peça nº **, e versões referidas de **) à qual esta declaração se re-
fere, está em conformidade com todas as disposições relevantes das
seguintes diretrizes e normas:
Directivas
2014/30/EU, 2006/42/EC
Normas
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
O nome e a assinatura no fim deste documento é a pessoa responsável
pela declaração de conformidade e pelo arquivo técnico.
RU Русский
Декларация о соответствии
Компания AB Ph. Nederman & Co. со всей ответственностью заявляет, что
оборудование Nederman:
Nederman (№ по каталогу **, и заявил, версии **), к которому относится
данная декларация, соответствует всем требуемым положениям следующих
директив и стандартов.
Директивы
2014/30/EU, 2006/42/EC
Стандарты
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Сотрудник, поставивший свою подпись под данным документом, отвечает
как за соблюдение декларации о соответствии, так и за достоверность
технических данных.
SV Svenska
Överensstämmelsedeklaration
Vi, AB Ph. Nederman & Co., förklarar under vårt fulla ansvar att Neder-
man-produkten:
RBU (artikelnummer **, och angivna versioner av **) som denna dekla-
ration avser, är i överensstämmelse med alla relevanta bestämmelser i
följande direktiv och standarder:
Direktiv
2014/30/EU, 2006/42/EC
Standarder
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
Namnet och signaturen i slutet av detta dokument är den person som
ansvarar för både försäkran om överensstämmelse och den tekniska fi-
len.
5

RBU
H 中文
符合性声明
我们瑞典 AB Ph. Nederman & Co. 公司郑重声明：
与本声明相关的 Nederman 产品 RBU（零件号：**，并指出版本**）符合
以下 指令和标准的所有相关条例：
指令
2014/30/EU, 2006/42/EC
标准
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN
61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO 12100:2010
此文档末尾的名字和签名即为符合性声明和技术文件的负责人.
**
36503, 36504, 40103703, 40103705, 40103706, 40103710, 40103712, 40103713, 40103714, 40103715, 40103716, 40103720, 40103722,
40103724, 40103725, 40103726, 40103727, 40103730, 40103731, 40103733, 40103734, 40103735, 40103740, 40103741, 40103743,
40103744, 40103745, 40103750, 40103752, 40103754, 40103755, 40103756, 41002349, 40105600
AB Ph. Nederman & Co.
P.O. Box 602
SE-251 06 Helsingborg
Sweden
Anna Cederlund
Product Center Manager
Technical Product Management
2022-10-17
6

RBU
UK Declaration of Conformity
We, AB Ph. Nederman & Co., declare under our sole responsibility that the Nederman product:
RBU (Part No. **, and stated versions of **) to which this declaration relates, is in conformity with all the relevant provisions of the
following regulations and standards:
Relevant legislation
Electromagnetic Compatibility Regulations 2016, Supply of Machinery (Safety) Regulations 2008
Standards
EN 60204-1:2018, EN 61000-6-4:2019, EN 61000-6-2:2005, EN 61000-6-2:2005/AC:2005, EN SO 20607:2019, EN SO
12100:2010
The name and signature at the end of this document is the person responsible for the declaration of conformity.
The UK importer is authorised and responsible to compile the technical file.
**
36503, 36504, 40103703, 40103705, 40103706, 40103710, 40103712, 40103713, 40103714, 40103715, 40103716,
40103720, 40103722, 40103724, 40103725, 40103726, 40103727, 40103730, 40103731, 40103733, 40103734, 40103735,
40103740, 40103741, 40103743, 40103744, 40103745, 40103750, 40103752, 40103754, 40103755, 40103756, 41002349,
40105600
AB Ph. Nederman & Co.
P.O. Box 602
SE-251 06 Helsingborg
Sweden
Anna Cederlund
Product Center Manager
Technical Product Management
2022-10-17
UK mporter:
Nederman Ltd
91 Seedlee Road,
Walton Summit Centre,
Bamber Bridge,
Preston,
Lancashire,
PR5 8AE
7

RBU
Figures
5
6
11
12
13
8
4
9
3
7
10a
18
14
15 16
17
2
1
10b
1
8

RBU
1214 mm
47.80"C-C
770 mm
30.31"C-C
212 mm
8.35"
1206 mm
47.48"
1510 mm
59.45"
2280 mm
89.76"
1850 mm 72.83"
200 mm
7.87"
Ø
1516 mm
59.69"
200 mm
7.87"Ø
(4x ) Ø13 mm
12"
1321 mm
52.01"
1335 mm 52.57"
1070 mm
42.13"
1255 mm 49.39"
2
9

RBU
19
5
4
15
12
13
11
16
9
8
7
6
3
1
2
18
10
17
14
7
16
3
RBU
V1
31
32
Start- and control unit
4
Start- and control unit
RBU
Compressed
Air Switch
(opon)
33 34
35 36
t
°
140 C°
25 26
23 24
21 22
t
°
t
°
t
°
PT1000
Pump
PT1000
Motor
PT1000
Cooling
air inlet
5
10

RBU
6 7
10 mm (0.39")
8
11

RBU
Nm³/h
kPa
9
Nm³/h
kPa
A
A
10
12

RBU
English
User Manual
Table of contents
Figures ............................................................................................................................................................................. 8
1 Preface ............................................................................................................................................................................ 15
2 Safety .............................................................................................................................................................................. 15
2.1 Classification of important information ......................................................................................................... 15
2.2 General safety instructions .............................................................................................................................. 15
3 Description ..................................................................................................................................................................... 16
3.1 Main components ............................................................................................................................................... 16
3.2 Connections ........................................................................................................................................................ 16
3.3 Vacuum limiting valve ....................................................................................................................................... 17
3.4 Pump thermal supervision ................................................................................................................................ 17
3.5 Optional: Compressed air switch ..................................................................................................................... 17
3.6 Technical data ..................................................................................................................................................... 18
3.7 Pressure drop diagrams .................................................................................................................................... 19
3.7.1 RBU ......................................................................................................................................................... 19
3.7.2 RBU 2600 FC ......................................................................................................................................... 19
4 Before installation ........................................................................................................................................................ 19
4.1 Location ............................................................................................................................................................... 19
4.2 Foundation .......................................................................................................................................................... 19
5 nstallation ...................................................................................................................................................................... 19
5.1 ndoor installation .............................................................................................................................................. 19
5.2 Outdoor installation ........................................................................................................................................... 20
5.3 Compressed air installation .............................................................................................................................. 20
5.3.1 Requirements ...................................................................................................................................... 20
5.3.2 nstallation ............................................................................................................................................ 20
5.4 EMC ....................................................................................................................................................................... 20
5.5 PTC ........................................................................................................................................................................ 20
6 Using RBU ....................................................................................................................................................................... 20
6.1 Before start-up ................................................................................................................................................... 20
6.2 nitial start-up ..................................................................................................................................................... 20
6.2.1 Checking the direction of rotation .................................................................................................... 20
6.2.2 Checking the Y/D time setting .......................................................................................................... 21
6.2.3 Checking the start-up and vacuum limiting valve ......................................................................... 21
6.2.4 Checking the vacuum level ................................................................................................................ 21
6.2.5 Checking the pilot signal cable function .......................................................................................... 21
6.3 Parameters for use with a variable frequency drive ................................................................................... 21
7 Maintenance .................................................................................................................................................................. 21
7.1 General inspection ............................................................................................................................................. 21
7.2 Belt transmission ............................................................................................................................................... 22
7.3 Oil pump ............................................................................................................................................................... 22
7.4 Pump oil change ................................................................................................................................................. 22
7.5 nternal cleaning ................................................................................................................................................ 22
7.6 Discharge silencer .............................................................................................................................................. 22
EN
13

RBU
EN 7.7 Thermal fuse ....................................................................................................................................................... 22
7.8 nlet safety grating ............................................................................................................................................ 23
7.9 Motor bearings ................................................................................................................................................... 23
7.10 Start-up and vacuum limiting valve ................................................................................................................ 23
7.11 Vacuum level ....................................................................................................................................................... 23
7.11.1 Adjusting the vacuum level ............................................................................................................... 23
7.12 Pump service ....................................................................................................................................................... 23
8 Spare Parts ..................................................................................................................................................................... 23
8.1 Ordering spare parts .......................................................................................................................................... 23
9 Recycling ......................................................................................................................................................................... 23
10 Appendix A: nstallation protocol ............................................................................................................................... 24
11 Appendix B: Service protocol ...................................................................................................................................... 26
14

RBU
1Preface
Thank you for using a Nederman product!
The Nederman Group is a world-leading supplier and
developer of products and solutions for the environ-
mental technology sector. Our innovative products
will filter, clean and recycle in the most demanding of
environments. Nederman's products and solutions will
help you improve your productivity, reduce costs and
also reduce the impact on the environment from in-
dustrial processes.
Read all product documentation and the product iden-
tification plate carefully before installation, use, and
service of this product. Replace documentation imme-
diately if lost. Nederman reserves the right, without
previous notice, to modify and improve its products
including documentation.
This product is designed to meet the requirements
of relevant EC directives. To maintain this status, all
installation, maintenance, and repair is to be done
by qualified personnel using only Nederman original
spare parts and accessories. Contact the nearest au-
thorized distributor or Nederman for advice on tech-
nical service and obtaining spare parts. f there are
any damaged or missing parts when the product is de-
livered, notify the carrier and the local Nederman rep-
resentative immediately.
2Safety
2.1Classification of important informa-
tion
This document contains important information that
is presented either as a warning, caution or note, ac-
cording to the following examples:
WARNING!Risk of personal injury
Warnings indicate a potential hazard to the
health and safety of personnel, and how that
hazard may be avoided.
CAUTION!Risk of equipment damage
Cautions indicate a potential hazard to the
product but not to personnel, and how that
hazard may be avoided.
NOTE!
Notes contain other information that is import-
ant for personnel.
2.2General safety instructions
NOTE!
For reasons of safety, this manual must be
studied before using the product for the first
time.
Never start the unit before installation is complete.
WARNING!Risk of personal injury
• Always stop the unit before looking into the
outlet. The pump rotates at high speed and
even small particles of dust could severely
damage the eyes.
• Ensure the dust collector is attached to the
unit’s inlet and the silencer attached to the
outlet. Suction at the inlet is very powerful
and any contact with the pump lobe could
result in severe injury.
• The belt guard must always be in place ex-
cept during maintenance work on the trans-
mission. Maintenance must be undertaken by
qualified personnel. Refit the guard when the
work is finished. The figures in this manual
without the guard in place are for illustration
purposes only and do not imply that the unit
ever is to be run without the guard.
• The thermal switches in the unit must always
be enabled. Switch off and lock the mains
maintenance switch or remove the mains
fuses before starting the maintenance.
• The exhaust air and pipes, motor, pump and
silencer will sometimes get very hot.
CAUTION!Risk of equipment damage
The dust collector must be positioned before
the vacuum unit and be designed and main-
tained to prevent coarse particles and dust
from being sucked into the pump. Filtering of
fine dust should be sufficient to prevent undue
wear to the pump. The unit must be stopped
immediately for inspection by suitably quali-
fied personnel if the pump rotates unevenly,
or if damage to the pump or its bearings is sus-
pected.
EN
15

RBU
EN 3Description
The RBU (Roots Blower Unit) is a series of vacuum
units fitted with a 3-lobe root pump vacuum source.
See Section3.6Technical data regarding airflow in-
formation. The motor is a 3-phase asynchronous mo-
tor. See the RBU unit machine tag for details regard-
ing voltage, current, motor power, and frequency.
The root pump’s power consumption increases with
increasing vacuum and decreasing airflow (pump
characteristics).
For Y/D started models it is necessary to minimise the
power requirement during Y/D-starting. This is done
by opening a solenoid valve for free admittance of air
to the pump when the motor runs in Y-mode.
All RBU units are fitted with a combined start-up and
vacuum limiting valve. This valve is controlled by low
friction compressed air cylinder, a solenoid valve
and two regulators. The valve opens if the vacuum
reaches the working vacuum level or the safety vacu-
um level. When the valve opens incoming air lowers
the vacuum. The opening of the valve will depend on
(1) the vacuum in pump and (2) the force of the low
friction compressed air cylinder pulling the valve in
the opposite direction. The force in the compressed
air cylinder rises when air pressure fed to the com-
pressed air cylinders raises. n this way, the regulat-
ors adjust the vacuum by affecting the valve disc po-
sition which in turn changes the air pressure to the
compressed air cylinder.
The working vacuum level is adjusted using the regu-
lator closest to the cylinder, see Figure1 item 15. The
level is set before delivery and no further adjustment
is normally required. See Section7.11Vacuum level
regarding regulator adjustment.
CAUTION!Risk of equipment damage
The safety valve regulator must never be ad-
justed, Figure1 item 16. ncorrect setting of
the safety valve regulator damages the pump
and the warranty will be rendered invalid.
At the universal valve, entrance is a rubber disc back-
flush valve. The valve is used when two or more RBU
units are hooked up in parallel and prevent units not
yet started from running backwards.
A rubber disc overpressure valve is placed on the uni-
versal valve side, see Figure1 item 18. The overpres-
sure valve opens and lets air out if the pump runs in
the wrong direction during the initial start-up.
After the universal valve, the air passes through the
inlet silencer to the roots pump. Underneath the pump
is a rigid discharge silencer. An additional spiro bend
silencer leads the air out from the unit.
On Y/D started models a thermal fuse is placed in the
lower flange of the pump, see Figure1 item 10a. This
fuse trips at ≈ 140 °C (≈ 284 °F) with an indication to
the start- and control unit which stops the unit. See
Section7.7Thermal fuse for more information.
On models intended for use with a variable frequency
drive, the pump temperature is monitored with a
PT1000 temperature sensor. The pump must be
stopped if the pump temperature reaches 140.
Models intended for use with a variable frequency
drive are also fitted with PT1000 temperature
sensors for monitoring the motor's surface temper-
ature as well as the temperature of the cooling air in-
take.
3.1Main components
Figure1 shows the main components of the RBU unit.
These are as follows:
1 nlet silencer.
2 Outlet spiro silencer.
3 Noise-absorbing enclosure.
4 Spiro silencer with a 90° bend.
5 Motor.
6 Transmission.
7 Belt guard.
8 Discharge silencer.
9 Base.
10 a) Thermal fuse. b) PT1000 temperature sensor
(on models intended for use with a variable fre-
quency drive).
11 3-lobe roots-pump.
12 nlet silencer with safety grating.
13 Universal valve. This is a combined vacuum limit-
ing valve, backflush valve, and overpressure valve.
14 Vacuum limiting valve disc.
15 Maximum work vacuum regulator.
16 Safety vacuum regulator. The regulator must not
be adjusted.
17 nlet safety grating.
18 Overpressure valve.
3.2Connections
The motor is connected electrically with the enclosure
roof removed. See the start- and control unit’s manu-
al for electrical connections. Connections may vary de-
pending on the options. Connecting material such as
cables is not included with the unit. Different dust col-
lectors are available; see the manual of the dust col-
lector for details.
Start- and control units from Nederman have termin-
als for easy connection of all control cables. f other
equipment is used, this equipment must be similarly
equipped and connected for the guarantee of the RBU
unit to be valid. Most failures are result from faults
in the electrical equipment or connections. The mo-
tor overload relay must be of the ‘heavy start type’ as
some units are heavy to start. Otherwise, the motor
16

RBU
overload may trip because of the high current and the
long time spent in the Y-mode.
Figure3 contains a schematic diagram of the normal
connections. These are as follows:
1 Exhaust duct in steel spiro for indoor installation.
2 Optional: ‘Jet cap’ for outdoor installation.
3 Vacuum pipe in non-spiro steel from the dust col-
lector.
4 3-phase supply.
5 Start- and control unit. Normally with a frequency
converter or Y/D-starting.
6 Optional: Pilot signal cable for installations with
automatic start/stop.
7 6 mm (1/4") tube airline to the universal valve. The
tube is supplied with the unit.
8 T-joint for the airline to the dust collector. See the
dust collector manual for more information.
9 Dirt and water separator for compressed air. The
separator is supplied with the unit.
10 Dust collector for 1–2 units. The dust collector is
ordered separately.
11 Cable to filter cleaning unit. See the dust collector
manual for more information.
12 Two lead cable to thermal fuse, see also Fig-
ure5. The cable can be combined with the cable to
solenoid V1, item 13, into a single four lead cable.
13 Two lead cable to solenoid V1 on the universal
valve, see also Figure4. This cable can be com-
bined with the cable to the thermal fuse, item 12,
into a single four lead cable.
14 Six lead cable for connecting the PT1000 sensors
to temperature supervision device (e.g. variable
frequency drive). Only on models intended for use
with a variable frequency drive.
15 Optional maintenance switch. For models inten-
ded for use with a variable frequency drive, an
EMC-compliant switch must be used. This is re-
quired in most countries.
16 Vacuum meter. The meter is linked to the vacuum
unit nipple by a 6 mm (1/4") tubing. The meter is
supplied with the unit.
17 Motor cooling air outlet without any connections.
The inlet must always be kept free to prevent
overheating.
18 Ventilation opening with a noise trap without any
connections. The opening must always be kept
free to prevent overheating.
19 Vacuum unit.
NOTE!
Additional exhaust air ducts should be routed
straight and as short as possible. Pressure drop
for complete system shall be considered by the
installation designer or the user.
3.3Vacuum limiting valve
See wiring diagram for the start- and control unit for
connection of the 24 VDC solenoid valve V1.
3.4Pump thermal supervision
Figure5 shows the circuit diagram for the overheating
cut-out on the pump used for Y/D started models. The
circuit trips and stops the unit when the temperature
reaches 140 °C (284 °F).
Figure5 also shows the connection diagram for the
PT1000 temperature sensors used in the models in-
tended for use with a variable frequency drive. The
pump temperature must be monitored and the unit
stopped if the temperature reaches 140°C.
NOTE!
The circuitry in the start- and control unit must
on no account allow the unit to re-start directly
when the thermal fuse is replaced or after the
pump temperature sensor has indicated a tem-
perature of 140°C or more. nstead, a manual
reset of a circuit in the start- and control unit
must be required. Voltage must not exceed 24
V.
Thermal tripping is to be indicated by a lamp or LED.
The manufacturer of the motor start- and control unit
is responsible for supplying a reliable circuit for this
purpose. See wiring diagram for the start- and control
unit for connection of the thermal fuse. A minimum
airflow of 500 N m3/h is required in order to ensure
sufficient pump cooling.
3.5Optional: Compressed air switch
An optional compressed air switch can be mounted in
the vacuum unit to prevent it from starting with no
compressed air supply. No air supply must result in an
error indication in the start- and control unit. For elec-
trical connections, see Figure5 and the start- and con-
trol unit’s manual. Use a jumper to connect the termin-
als if no compressed air switch is used.
EN
17

RBU
EN 3.6Technical data
RBU 1300 1600 1600E 2100 2100E 2600 2600
FC
Operating temperature -20 °C to +40 °C (-4 °F to +104 °F)
Dimensions See Figure2
nlet mm (in) Ø 200 (7.78")
Outlet mm (in) Ø 200 (7.78")
Weight without motor, kg (lb) 730
(1609) 730 (1609) 730 (1609) 870 (1918) 870 (1918) 870 (1918) 870 (1918)
Total weight*, Europe and
Asia, kg (lb)
933
(2057) 976 (2152) 986 (2174) 1126 (2482) 1198 (2641) 1303 (2873) 1303 (2873)
Total weight *, North America,
kg (lb) 906 (1997) 974 (2147) 995 (2194) 1135 (2502) 1286 (2835) 1355 (2987) 1355 (2987)
Total weight*, Brazil, kg (lb) 865
(1907) 962 (2121) 988 (2178) 1128 (2487) 1163 (2564) 1286 (2835) 1286 (2835)
Maximum vacuum, kPa
(in.W.G.) 33 (132) 33 (153) 45 (180) 33 (132) 45 (180) 45 (180) 35 (180)
Maximum working vacuum
preset, kPa 33 33 40 33 40 40 35
Safety vacuum setting, kPa ** 40 40 45 40 45 45 40
Capacity at 20 kPa, m/h (cfm) 1300
(765) 1600 (942) 1600 (942) 2100 (1236) 2100 (1236) 2600 (1530) 2600 (1530)
Maximum flow, m/h (cfm) 1650
(971) 2000 (1177) 2000 (1177) 2600 (1530) 2600 (1530) 3200 (1883) 3200 (1883)
Motor data See motor label
Motor power, kW (HP) 22 (30) 30 (10) 37 (50) 37 (50) 45 (60) 55 (75) 55 (75)
Noise level, SO 11201 70 dB(A)
Pump thermal supervision Thermal fuse 140 °C (284 °F) PT1000
Control voltage 24 V DC ± 10% (solenoid for 24 V AC enclosed)
Compressed air quality Clean dry, SO 8573-1 class 5
Required air pressure 6–8 bar (87–116 PS )
Maximum air consumption in-
termittent 70 N-Litres/min (2.5 cfm)
Material description Powder-coated steel, copper, stone wool insulation
Material recycling Approximately 95–97% of the weight
18

RBU
RBU 1300 1600 1600E 2100 2100E 2600 2600
FC
Min. operational frequency, Hz N/A 20
Max. operational frequency,
Hz N/A 60
Max. rate of frequency
change, Hz/s N/A 1
*Motor weight included.
** Never change the setting of the safety regulator.
3.7Pressure drop diagrams
3.7.1RBU
See Figure9.
3.7.2 RBU 2600 FC
See Figure10.
The diagram shows the vacuum (kPa) vs airflow
(Nm3/h) with a variable frequency 20-60 Hz where
the vacuum level is set to 30 kPa and the vacuum con-
trol valve is at 37 kPa.
Line A is the vacuum/airflow in operation.
4Before installation
Check the RBU unit for any transport damages. n case
of damage or parts missing, notify the carrier and your
local Nederman representative immediately. t is re-
commended to transport the RBU unit to the installa-
tion site while still in the factory packing.
4.1Location
Prepare the location where the RBU unit is to be
placed before installation. An open working space
around the unit is necessary for maintenance. A gap of
at least 0.7 meter in front of the unit is required to al-
low for opening of the unit.
4.2Foundation
The unit must be anchored to a hard, level and firm
foundation, such as a concrete foundation.
Consider the total weight of the unit with accessories
when calculating the foundation or supporting struc-
ture, see Section3.6Technical data.
5Installation
WARNING!Risk of personal injury
Use ear protection and safety goggles during
the installation of the unit.
The unit can be placed indoors or outdoors.
Consider the following when installing the RBU unit:
• The foundation is to be level and hard, see Sec-
tion4.2Foundation.
• nstall the RBU unit away from heat sources or hot
surfaces.
• Ensure that service and maintenance are conveni-
ent.
• Beware of hot air from the outlet.
• The pump and outlet are to be clearly marked indic-
ating their potential to cause burn injuries. t is re-
commended to take measures to ensure no person
can come into contact with hot parts.
• Ambient temperature must be within operating
temperature defined in Section3.6Technical data.
• Make sure the exhaust duct is protected from rain.
• Make sure the exhaust duct has a grid so no objects
can get into the duct.
CAUTION!Risk of equipment damage
Make sure the inside of the pipe between
the filter and pump are clean and free from
particles before assembly. Even small particles
can cause damage to the pump if sucked in dur-
ing startup.
5.1Indoor installation
Consider the following when installing the unit in-
doors:
• There are to be at least two ventilation openings
for ventilation, at least 250×250 mm (10"×10") in
size. One is to be placed up high and the other on the
down-low in the room.
• Never seal a small room with the RBU unit installed
completely. At some stages, the unit will admit air
directly into the roots pump. This can cause a dan-
gerous underpressure in the room if the airflow is
obstructed.
• Duct away the hot discharge air, either to the at-
mosphere or to a heat exchanger. The discharge air
can reach more than 100 °C (212 °F). The duct must
be free from air restricting valves. A closed valve
could lead to an overpressure of more than 100 kPa,
which could severely damage the heat exchanger.
Noise levels for the RBU vary depending on size, site
and running conditions. See Section3.6Technical
EN
19

RBU
EN data for measured noise levels. The noise level will
rise by several dB(A) when the vacuum gets close to
the maximum working vacuum. Measurements have
been made free-field with the unit standing on a re-
flective base in accordance to SO 11201 standard.
The noise levels can be several dB(A) higher in a room
with hard reflective walls.
5.2Outdoor installation
Consider the following when installing the unit out-
doors:
• Cover the top of the unit to protect it from snow,
rain or falling debris.
• Avoid placing the unit against a wall directly ex-
posed to the sun.
5.3Compressed air installation
5.3.1Requirements
For air consumption, quality and maximum and minim-
um pressure, see Section3.6Technical data.
NOTE!
The specified air consumption of the unit is
limited to the short operation of the start-up
valve.
As new pipes may contain dirt, particles or debris, the
compressed air pipe is to be blown clean before con-
necting the unit.
The enclosed compressed air filter must be installed
to ensure the reliable and safe operation of the unit.
The compressed air valve vents the remaining pres-
sure of the unit.
NOTE!
• Take necessary measures to avoid water or
humidity in the compressed air when the unit
is installed in cold environments.
• f antifreeze additives are used, use them
continuously. Once added, the removal of an-
tifreeze additive can cause the pneumatic
components to malfunction.
5.3.2Installation
Connect a compressed air supply to the inlet, see Fig-
ure3 item 7, and Section3.2Connections.
Connect the vacuum meter, Figure3 item 15 and Sec-
tion3.2Connections.
5.4EMC
Units intended for use with variable frequency drives
are fitted with EMC compatible cable glands. EMC com-
pliant, screened cables must be used.
5.5PTC
The motor has added thermal protection in the form
of three PTC devices connected in series and embed-
ded in the windings. Connections to the motor thermal
protection are available in the motor terminal box. t is
strongly recommended to use the motor PTC to stop
the unit, should an over-temperature be detected and
is mandatory for units intended for use with a variable
frequency drive.
6 Using RBU
6.1Before start-up
The vacuum unit and any auxiliary options are tested
before delivery and all functions are checked. A test
report accompanies each unit.
Ensure the following before the initial start-up:
• The maintenance switch is installed (if used).
• The installation room has ventilation openings (if
used indoors), see Section5.1 ndoor installation
• Dust collector, duct and valves at the worksites are
connected.
• Exhaust air is ducted away from the installation (if
used indoors).
• Make sure the exhaust duct is protected from rain
and snow.
• Make sure the exhaust duct is fitted with a grid so
no foreign objects can get into the duct.
• The compressed air supply is permanently fitted.
• All electrical connections have been correctly made
as in Figure6-Figure8.
• Nederman start- and control units have the termin-
als connected, and in some cases jumped connec-
tions. Verify the connections using the connecting
diagrams.
• The pilot signal cable from all valves is linked to the
start- and control unit on units with automatic start/
stop.
• All valves at worksites are closed.
• Ensure that the belt guard is properly in place.
6.2Initial start-up
6.2.1Checking the direction of rotation
At initial start-up, check the direction of rotation by
doing the following:
1 Start the unit.
2 Compare the direction of the motor rotation with
the arrow on the motor.
• f the direction of the motor and the arrow are
the same, allow the starting procedure to con-
tinue.
• f the direction of the motor is different from the
direction of the arrow, change the direction of
the motor by doing the following:
1 Stop the unit.
2 Disconnect power.
3 a) Open the start- and control unit.
20