Grundfos JP05S User manual

JP
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions.
CONTENTS
Page
1. Symbols used in this document
2. General information
These instructions apply to JP 5 and JP 6 pumps in
material variants A and B.
3. Applications
The Grundfos jet pumps, type JP, are horizontal,
self-priming centrifugal pumps designed for pumping
water and other thin, non-aggressive and
non-explosive liquids, not containing solid particles
or fibres.
If the pump has been used for dirty liquids, e.g. pool
water, flush it through with clean water immediately
after use.
1. Symbols used in this document 2
2. General information 2
3. Applications 2
4. Identification 3
5. Installation 3
5.1 Handle 3
5.2 Ejector valve 3
6. Electrical connection 4
6.1 Checking the direction of rotation
(three-phase motors) 4
7. Startup 5
7.1 Filling the pump with water 5
7.2 Shaft seal run-in 5
8. Maintenance 5
8.1 Cleaning the pump 5
8.2 Frost protection 6
9. Technical data 7
10. Fault finding 8
11. Disposal 9
Warning
Prior to installation, read these installation
and operating instructions. Installation and
operation must comply with local
regulations and accepted codes of good
practice.
Warning
The use of this product requires
experience with and knowledge of the
product.
Persons with reduced physical, sensory or
mental capabilities must not use this
product, unless they are under supervision
or have been instructed in the use of the
product by a person responsible for their
safety.
Children must not use or play with this
product.
Warning
If these safety instructions are not
observed, it may result in personal injury.
Warning
If these instructions are not observed, it
may lead to electric shock with consequent
risk of serious personal injury or death.
Warning
When pumping hot liquids, make sure that
persons cannot accidentally come into
contact with hot surfaces.
Caution
If these safety instructions are not
observed, it may result in malfunction or
damage to the equipment.
Note
Notes or instructions that make the job
easier and ensure safe operation.
Warning
Do not use the pump for flammable liquids,
such as diesel oil and petrol.
Warning
Do not use the pump for aggressive
liquids, such as acids and seawater.

English (GB)
3
4. Identification
Fig. 1 Nameplate
5. Installation
The pump must be installed horizontally.
When the suction pipe is longer than 10 metres or
the suction lift is greater than 4 metres, the diameter
of the suction pipe must be larger than 1". If there is
a suction lift, we recommend that you fit a non-return
valve to the suction pipe.
If a hose is used as a suction pipe, it must be
non-collapsible.
To prevent solids from entering the pump, a filter can
be fitted to the suction pipe.
Make sure that the pump is not stressed by the
pipework.
Connect the discharge pipe to the pump discharge
port (T). See fig. 2. H = maximum 7 metres.
Fig. 2 Pipe connection
Installation dimensions can be found on page 206.
5.1 Handle
It is not necessary to fit the handle supplied on
permanently installed pumps.
On portable pumps the handle can be fitted
lengthwise or crosswise depending on the material
variant.
5.2 Ejector valve
The ejector valve is supplied separate with the
pump.
Remove the plug (V), see fig. 5, and fit the ejector
valve into the hole.
TM05 1797 3711
Pos. Description
1Type
2 Model
3 Supply voltage
4 Maximum current
5 Frequency
6 Maximum pressure
7 Maximum head
8 Country of origin
9 Rated head
10 Enclosure class
11 Input power
12 Rated flow rate
13 Maximum ambient temperature
14 Maximum liquid temperature
15 Efficiency class
16 Production company
Type
Model
U
Imax
f
Pmax
Hmax Hnom
IP
P1Hz
MPa/Bar
mm
W
A
V
Qnom
Tamb, max
Tliq, max
m /h
C
O
O
C
3
1
2
3
4
5
6
7
1098 11
12
13
14
15
16
TM05 1796 3711
Note
The O-ring must be fitted to the ejector
valve.
Tighten the valve using fingers only.
Max. 7 m

English (GB)
4
5.2.1 Ejector valve setting
The ejector valve in the plug hole (V) can be turned
to two positions. See fig. 4.
Figure 3shows an example of how the ejector valve
position may affect the QH curve.
Fig. 3 QH curve and ejector valve positions
Pos. 1
Turn the valve to the left (out).
Select pos. 1 when the suction pipe is empty and the
pump is to be primed.
Select also pos. 1 when a small quantity of water and
a high pressure are required.
Pos. 2
Turn the valve to the right (in).
Select pos. 2 when the pump has been primed, and
a large quantity of water and a low pressure are
required.
Fig. 4 Ejector valve positions
6. Electrical connection
Carry out the electrical connection according to local
regulations.
Single-phase motors incorporate a thermal switch
and require no additional motor protection.
Three-phase motors must be connected to an
external mains switch and a motor-protective circuit
breaker.
Carry out the electrical connection as shown in the
diagram on the inside of the terminal box cover.
6.1 Checking the direction of rotation
(three-phase motors)
Arrows on the motor fan cover indicate the correct
direction of rotation.
If the direction of rotation is wrong, switch off the
power supply and interchange any two of the
incoming supply wires.
TM00 7474 1396
Warning
This position must only be used for high
flow rates and constant water
consumption.
Pos. Ejector valve Direction
1Left
(out)
TM04 2299 2308
2Right
(in)
TM04 2300 2308
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Q [m³/h]
0
5
10
15
20
25
30
35
40
45
H
[m]
0.00 0.25 0.50 0.75 1.00 Q [l/s]
JP 5
IS O 9906 Annex A
Pos.1
Pos.2
Warning
During electrical installation, make sure
that the power supply cannot be
accidentally switched on.
Warning
The pump must be connected to an
external mains switch with a minimum
contact gap of 3 mm in all poles.
As a precaution, the pump must be
connected to a socket with earth
connection.
We recommend that you fit the permanent
installation with an earth leakage circuit
breaker (ELCB) with a tripping current ≤30
mA.
Warning
Do not start the pump until it has been
filled with liquid.

English (GB)
5
7. Startup
7.1 Filling the pump with water
1. Remove the plug (P). See fig. 5.
2. Fill the pump with water.
3. Refit the plug and tighten it using fingers only.
The pump can now be started.
Fig. 5 Filling the pump with water
If there is a suction lift, up to four minutes may pass
from the moment the pump is started until it delivers
water. This period depends on the length and
diameter of the suction pipe.
When the pump is delivering water without air, you
may turn the ejector valve to position 2. See fig. 4.
7.2 Shaft seal run-in
The seal faces are lubricated by the pumped liquid,
meaning that there may be a certain amount of
leakage from the shaft seal.
When the pump is started up for the first time, or
when a new shaft seal is installed, a certain run-in
period is required before the leakage is reduced to
an acceptable level. The time required for this
depends on the operating conditions, i.e. every time
the operating conditions change, a new run-in period
will be started.
Under normal conditions, the leaking liquid will
evaporate. As a result, no leakage will be detected.
8. Maintenance
If the pump has been used for dirty liquids, e.g. pool
water, it must be flushed through with clean water
immediately after use.
8.1 Cleaning the pump
It is only necessary to clean the pump if it does not
work as intended and flushing it with clean water did
not eliminate the problem.
The position numbers mentioned in the following
sections refer to fig. 6.
8.1.1 Dismantling
1. Pumps with ejector valve: Turn the ejector valve
to pos. 1. See fig. 4.
2. Drain the pump by removing plug (pos. 25) or
ejector valve (pos. 25a).
3. Remove screw (pos. 93) and clamp (pos. 92)
holding pump sleeve (pos. 16).
4. Push pump sleeve (pos. 16) free of the motor
stool with a screwdriver and take it off.
5. Pull ejector (pos. 14) out of the pump sleeve.
6. Clean the ejector and the pump sleeve using a
soft brush or a water jet.
7. Check if impeller (pos. 49) is dirty. If that is the
case, clean the impeller (in place) using a soft
brush or a water jet. See fig. 7.
To prevent the impeller and shaft from rotating,
hold the motor fan blades.
Warning
Do not start the pump until it has been
filled with liquid.
Caution
The pump must not run without delivering
water for more than four minutes.
TM00 5495 4995
V
S
P
T
Warning
Before starting work on the product, switch
off the power supply. Make sure that the
power supply cannot be accidentally
switched on.
Warning
Make sure that the escaping hot or cold
liquid does not cause injury to persons or
damage to the equipment.
Caution
Do not use a high-pressure jet cleaner.

English (GB)
6
8.1.2 Assembly
1. Moisten O-ring (pos. 13) with soapy water and fit
it into the recess of the suction port of ejector
(pos. 14).
2. Fit the ejector into pump sleeve (pos. 16). Check
that O-ring (pos. 13) is positioned correctly on the
collar of the suction port of the sleeve.
3. Moisten O-ring (pos. 31) with soapy water and
place it on the ejector.
4. Moisten seal ring (pos. 91) with soapy water, fit it
into the recess of the ejector and turn it against
the stop.
5. Fit the pump sleeve with the ejector to the motor
stool. Check that O-ring (pos. 31) is positioned
correctly.
6. Place clamp (pos. 92) on the pump sleeve, and fit
and tighten the screw and nut.
7. Refit plug (pos. 25) or ejector valve (pos. 25a).
Check that the ejector valve is in position 1. See
fig. 4. Tighten the plug or ejector valve using
fingers only.
In orders for spare parts, please mention the position
number in fig. 6and the pump data marked on the
pump nameplate.
Fig. 6 Exploded view of jet pump
Fig. 7 Cleaning the impeller
8.2 Frost protection
To drain the pump, remove the plug (P) and the plug
or the ejector valve (V). See fig. 8.
Fig. 8 Draining the pump
Refit the plugs and tighten them using fingers only.
TM051536 3411
Note
The pump illustrated in fig. 6may differ
from the actual pump version.
TM05 1803 3811
Caution
If the pump is not used during periods of
frosts, it must be drained to avoid damage.
TM00 5497 4995
Warning
Make sure that the escaping hot or cold
liquid does not cause injury to persons or
damage to the equipment.
°C
-20
-10
0
10
20
V
P

English (GB)
7
9. Technical data
Ambient temperature
Maximum +40 °C.
Storage temperature
Minimum -20 °C.
Maximum +70 °C.
Liquid temperature
See pump nameplate.
System pressure
Maximum 6 bar.
Inlet pressure
At inlet pressures above 1.5 bar the discharge
pressure must be at least 2.5 bar.
Supply voltage
1 x 220-240 V, 50 Hz.
3 x 220-240/380-415 V, 50 Hz.
Insulation class
F.
Enclosure class
IP44.
Relative air humidity
Maximum 95 %.
Dimensions
See page 206.
Sound power level
The sound power level of the pump is lower than 72
dB(A).
Start/stop frequency
Maximum 100 per hour.

English (GB)
8
10. Fault finding
Warning
Before starting fault finding, switch off the
power supply. Make sure that the power
supply cannot be accidentally switched on.
Fault Cause Remedy
1. The pump does
not start.
a) Supply failure. Cut in the circuit breaker or replace the fuses.
If the new fuses also blow, check the electric
installation.
b) Pump blocked by impurities. Clean the pump. Check or replace the strainer
in the suction pipe.
c) Motor defective. Repair or replace the motor.*
d) Three-phase motors:
The motor-protective circuit
breaker has tripped.
Cut in the motor-protective circuit breaker.
If the problem still persists, check these two
possible causes:
• Impeller stuck.
Clean the pump according to section 8.1.
• Motor defective.
Repair or replace the motor.*
2. The pump runs,
but gives no water
or delivers a
reduced quantity
of water.
a) Pump is not filled with water. Prime the pump. See section 7.
b) Suction pipe blocked by
impurities.
Clean the pump. Check or replace the strainer
in the suction pipe.
c) Pump blocked by impurities. Clean the pump. Check or replace the strainer
in the suction pipe.
d) Suction lift is too high (over 7
metres). Change the position of the pump.
e) Suction pipe is too long. Change the position of the pump.
f) Diameter of suction pipe is
too small. Replace the suction pipe.
g) Suction pipe is not immersed
deeply enough.
Make sure that the suction pipe is immersed
sufficiently.
h) Suction pipe is leaking. Repair or replace the pipe.
i) Ejector valve setting is
incorrect (only pumps fitted
with ejector valve).
Set the valve. See section 5.2.
j) Direction of rotation is
incorrect (three-phase
pumps).
Interchange two phases.
3. The pump runs,
but gives no water
or delivers a
reduced quantity
of water at high
pressure.
a) Discharge pipe blocked.
Clean pipe or open isolating valves, if fitted.
Check that no additional work is being carried
out in the system.

English (GB)
9
* Or contact the nearest Grundfos company or service workshop.
11. Disposal
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
4. The motor cuts out
during operation.
a) Single-phase motors:
The thermal switch in the
motor has tripped due to
overheating.
The thermal switch will cut in automatically
when the motor has cooled sufficiently.
If the problem still persists, check these two
possible causes:
• Impeller stuck.
Clean the pump according to section 8.1.
• Motor defective.
Repair or replace the motor.*
b) Three-phase motors:
Motor-protective circuit
breaker has tripped.
Cut in the motor-protective circuit breaker.
If the problem still persists, check these two
possible causes:
• Impeller stuck.
Clean the pump according to section 8.1.
• Motor defective.
Repair or replace the motor.*
Fault Cause Remedy

Appendix
10
Appendix 1
Material variant A
Material variant B
TM04 2346 2308
Pump type
Dimensions [mm]
ABC
JP 5, material variant A 300 364 240
JP 6, material variant A 300 401 240
TM04 2347 2308
Pump type
Dimensions [mm]
ABC
JP 5, material variant B 306 364 240
JP 6, material variant B 306 401 240

11

Grundfos companies
Argentina
Bombas GRUNDFOS de Argentina S.A.
Ruta Panamericana km. 37.500 Centro
Industrial Garin
1619 Garín Pcia. de B.A.
Phone: [phone]
Telefax: [phone]
Australia
GRUNDFOS Pumps Pty. Ltd.
P.O. Box 2040
Regency Park
South Australia 5942
Phone: [phone]
Telefax: [phone]
Austria
GRUNDFOS Pumpen Vertrieb
Ges.m.b.H.
Grundfosstraße 2
A-5082 Grödig/Salzburg
Tel.: [phone]
Telefax: [phone]
Belgium
N.V. GRUNDFOS Bellux S.A.
Boomsesteenweg 81-83
B-2630 Aartselaar
Tél.: [phone]
Télécopie: [phone]
Belarus
Представительство ГРУНДФОС в
Минске
220125, Минск
ул. Шафарнянская, 11, оф. 56, БЦ
«Порт»
Тел.: [phone]
Факс: [phone]
E-mail: [email protected]
Bosnia and Herzegovina
GRUNDFOS Sarajevo
Zmaja od Bosne 7-7A,
BH-71000 Sarajevo
Phone: [phone]
Telefax: [phone]
www.ba.grundfos.com
e-mail: [e-mail]
Brazil
BOMBAS GRUNDFOS DO BRASIL
Av. Humberto de Alencar Castelo
Branco, 630
CEP 09850 - 300
São Bernardo do Campo - SP
Phone: [phone]
Telefax: [phone]
Bulgaria
Grundfos Bulgaria EOOD
Slatina District
Iztochna Tangenta street no. 100
BG - 1592 Sofia
Tel. [phone]
Fax. [phone]
email: [e-mail]
Canada
GRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Phone: [phone]
Telefax: [phone]
China
GRUNDFOS Pumps (Shanghai) Co. Ltd.
10F The Hub, No. 33 Suhong Road
Minhang District
Shanghai 201106
PRC
Phone: [phone]
Telefax: [phone]
COLOMBIA
GRUNDFOS Colombia S.A.S.
Km 1.5 vía Siberia-Cota Conj. Potrero
Chico,
Parque Empresarial Arcos de Cota Bod.
1A.
Cota, Cundinamarca
Phone: [phone]
Telefax: [phone]
Croatia
GRUNDFOS CROATIA d.o.o.
Buzinski prilaz 38, Buzin
HR-10010 Zagreb
Phone: [phone]
Telefax: [phone]
www.hr.grundfos.com
GRUNDFOS Sales Czechia and
Slovakia s.r.o.
Čajkovského 21
779 00 Olomouc
Phone: [phone]
Denmark
GRUNDFOS DK A/S
Martin Bachs Vej 3
DK-8850 Bjerringbro
Tlf.: [phone]
Telefax: [phone]
E-mail: [email protected]
www.grundfos.com/DK
Estonia
GRUNDFOS Pumps Eesti OÜ
Peterburi tee 92G
11415 Tallinn
Tel: + 372 606 1690
Fax: + 372 606 1691
Finland
OY GRUNDFOS Pumput AB
Trukkikuja 1
FI-01360 Vantaa
Phone: [phone]
France
Pompes GRUNDFOS Distribution S.A.
Parc d’Activités de Chesnes
57, rue de Malacombe
F-38290 St. Quentin Fallavier (Lyon)
Tél.: [phone]
Télécopie: [phone]
Germany
GRUNDFOS GMBH
Schlüterstr. 33
40699 Erkrath
Tel.: [phone]
Telefax: [phone]
e-mail: [e-mail]
Service in Deutschland:
e-mail: [e-mail]
Greece
GRUNDFOS Hellas A.E.B.E.
20th km. Athinon-Markopoulou Av.
P.O. Box 71
GR-19002 Peania
Phone: [phone]
Telefax: +0030-210-66 46 273
Hong Kong
GRUNDFOS Pumps (Hong Kong) Ltd.
Unit 1, Ground floor
Siu Wai Industrial Centre
29-33 Wing Hong Street &
68 King Lam Street, Cheung Sha Wan
Kowloon
Phone: [phone]
Telefax: [phone]
Hungary
GRUNDFOS Hungária Kft.
Tópark u. 8
H-2045 Törökbálint,
Phone: [phone]
Telefax: [phone]
India
GRUNDFOS Pumps India Private
Limited
118 Old Mahabalipuram Road
Thoraipakkam
Chennai 600 096
Phone: [phone]
Indonesia
PT. GRUNDFOS POMPA
Graha Intirub Lt. 2 & 3
Jln. Cililitan Besar No.454. Makasar,
Jakarta Timur
ID-Jakarta 13650
Phone: [phone]
Telefax: [phone] / 460 6901
Ireland
GRUNDFOS (Ireland) Ltd.
Unit A, Merrywell Business Park
Ballymount Road Lower
Dublin 12
Phone: [phone]
Telefax: [phone]
Italy
GRUNDFOS Pompe Italia S.r.l.
Via Gran Sasso 4
I-20060 Truccazzano (Milano)
Tel.: [phone]
Telefax: [phone] / 95838461
Japan
GRUNDFOS Pumps K.K.
1-2-3, Shin-Miyakoda, Kita-ku,
Hamamatsu
431-2103 Japan
Phone: [phone]
Telefax: [phone]
Korea
GRUNDFOS Pumps Korea Ltd.
6th Floor, Aju Building 679-5
Yeoksam-dong, Kangnam-ku, 135-916
Seoul, Korea
Phone: [phone]
Telefax: [phone]
Latvia
SIA GRUNDFOS Pumps Latvia
Deglava biznesa centrs
Augusta Deglava ielā60, LV-1035, Rīga,
Tālr.: + 371 714 9640, 7 149 641
Fakss: + 371 914 9646
Lithuania
GRUNDFOS Pumps UAB
Smolensko g. 6
LT-03201 Vilnius
Tel: + 370 52 395 430
Fax: + 370 52 395 431

Grundfos companies
Malaysia
GRUNDFOS Pumps Sdn. Bhd.
7 Jalan Peguam U1/25
Glenmarie Industrial Park
40150 Shah Alam
Selangor
Phone: [phone]
Telefax: [phone]
Mexico
Bombas GRUNDFOS de México S.A. de
C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
Apodaca, N.L. 66600
Phone: [phone]
Telefax: [phone]
Netherlands
GRUNDFOS Netherlands
Veluwezoom 35
1326 AE Almere
Postbus 22015
1302 CA ALMERE
Tel.: [phone]
Telefax: [phone]
E-mail: [e-mail]
New Zealand
GRUNDFOS Pumps NZ Ltd.
17 Beatrice Tinsley Crescent
North Harbour Industrial Estate
Albany, Auckland
Phone: [phone]
Telefax: [phone]
Norway
GRUNDFOS Pumper A/S
Strømsveien 344
Postboks 235, Leirdal
N-1011 Oslo
Tlf.: [phone]
Telefax: [phone]
Poland
GRUNDFOS Pompy Sp. z o.o.
ul. Klonowa 23
Baranowo k. Poznania
PL-62-081 Przeźmierowo
Tel: [phone]
Fax: [phone]
Portugal
Bombas GRUNDFOS Portugal, S.A.
Rua Calvet de Magalhães, 241
Apartado 1079
P-2770-153 Paço de Arcos
Tel.: [phone]
Telefax: [phone]
Romania
GRUNDFOS Pompe România SRL
Bd. Biruintei, nr 103
Pantelimon county Ilfov
Phone: [phone]
Telefax: [phone]
E-mail: [e-mail]
Russia
ООО Грундфос Россия
ул. Школьная, 39-41
Москва, RU-109544, Russia
Тел. [phone] (495) 737-30-
00
Факс [phone]
E-mail [e-mail]
Serbia
Grundfos Srbija d.o.o.
Omladinskih brigada 90b
11070 Novi Beograd
Phone: [phone]
Telefax: [phone]
www.rs.grundfos.com
Singapore
GRUNDFOS (Singapore) Pte. Ltd.
25 Jalan Tukang
Singapore 619264
Phone: [phone]
Telefax: [phone]
Slovakia
GRUNDFOS s.r.o.
Prievozská 4D
821 09 BRATISLAVA
Phona: [phone]
sk.grundfos.com
Slovenia
GRUNDFOS LJUBLJANA, d.o.o.
Leskoškova 9e, 1122 Ljubljana
Phone: [phone]
Telefax: [phone]
E-mail: [email protected]
South Africa
GRUNDFOS (PTY) LTD
Corner Mountjoy and George Allen
Roads
Wilbart Ext. 2
Bedfordview 2008
Phone: [phone]
Fax: [phone]
E-mail: [e-mail]
Spain
Bombas GRUNDFOS España S.A.
Camino de la Fuentecilla, s/n
E-28110 Algete (Madrid)
Tel.: [phone]
Telefax: [phone]
Sweden
GRUNDFOS AB
Box 333 (Lunnagårdsgatan 6)
431 24 Mölndal
Tel.: [phone]
Telefax: [phone]
Switzerland
GRUNDFOS Pumpen AG
Bruggacherstrasse 10
CH-8117 Fällanden/ZH
Tel.: [phone]
Telefax: [phone]
Taiwan
GRUNDFOS Pumps (Taiwan) Ltd.
7 Floor, 219 Min-Chuan Road
Taichung, Taiwan, R.O.C.
Phone: [phone]
Telefax: [phone]
Thailand
GRUNDFOS (Thailand) Ltd.
92 Chaloem Phrakiat Rama 9 Road,
Dokmai, Pravej, Bangkok 10250
Phone: [phone]
Telefax: [phone]
Turkey
GRUNDFOS POMPA San. ve Tic. Ltd.
Sti.
Gebze Organize Sanayi Bölgesi
Ihsan dede Caddesi,
2. yol 200. Sokak No. 204
41490 Gebze/ Kocaeli
Phone: +90 - 262-679 7979
Telefax: +90 - 262-679 7905
E-mail: [e-mail]
Ukraine
Бізнес Центр Європа
Столичне шосе, 103
м. Київ, 03131, Україна
Телефон: [phone]
Факс.: [phone]
E-mail: [e-mail]
United Arab Emirates
GRUNDFOS Gulf Distribution
P.O. Box 16768
Jebel Ali Free Zone
Dubai
Phone: [phone]
Telefax: [phone]
United Kingdom
GRUNDFOS Pumps Ltd.
Grovebury Road
Leighton Buzzard/Beds. LU7 4TL
Phone: [phone]
Telefax: [phone]
U.S.A.
GRUNDFOS Pumps Corporation
17100 West 118th Terrace
Olathe, Kansas 66061
Phone: [phone]
Telefax: [phone]
Uzbekistan
Grundfos Tashkent, Uzbekistan The
Representative Office of Grundfos
Kazakhstan in Uzbekistan
38a, Oybek street, Tashkent
Телефон: [phone] / 71 150
3291
Факс: [phone]
Addresses Revised 14.03.2018

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