Grundfos JPC Series User manual

JPC
Installation and operating instructions
GRUNDFOS INSTRUCTIONS

2

3
Table of contents
JPC
English (GB)
Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
(AR)
   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

English (GB)
4
English (GB) Installation and operating instructions
Original installation and operating instructions
These installation and operating instructions
describe Grundfos JPC pumps.
Sections 1-3 give the information necessary to be
able to unpack, install and start up the product in a
safe way.
Sections 4-8 give important information about the
product, as well as information on service, fault
finding and disposal of the product.
CONTENTS
Page
1. General information
1.1 Symbols used in this document
2. Installing the product
2.1 Checking the product prior to
installation
Before installing the pump, check that the rotating
parts turn freely. Position numbers refer to fig. 1.
1. Remove the fan cover (pos. 13) from the motor.
2. Insert a screwdriver in the notch on the motor
shaft from the ventilation side.
3. If there is a blockage, turn the screwdriver,
tapping it gently with a hammer.
Fig. 1 Checking the rotating parts
1. General information 4
1.1 Symbols used in this document 4
2. Installing the product 4
2.1 Checking the product prior to installation 4
2.2 Location 5
2.3 Mechanical installation 5
2.4 Electrical connection 6
3. Starting up the product 6
3.1 Priming the pump 6
3.2 Shaft seal run-in 6
4. Servicing the product 7
4.1 Maintaining the product 7
4.2 Spare parts and kits 7
5. Product introduction 7
5.1 Identification 7
6. Fault finding 8
7. Technical data 9
8. Disposing of the product 9
Warning
Prior to installation, read this document
and the quick guide. Installation and
operation must comply with local
regulations and accepted codes of good
practice.
Warning
This appliance is not intended for use by
persons (including children) with reduced
physical, sensory or mental capabilities, or
lack of experience and knowledge, unless
they have been given supervision or
instruction concerning use of the appliance
by a person responsible for their safety.
Warning
Children should be supervised to ensure
that they do not play with the appliance.
Warning
The maximum inlet pressure must not be
exceeded.
JPC 3-42: 1.8 bar / 180 kPa.
JPC 4-47: 1.3 bar / 130 kPa.
JPC 4-54: 0.6 bar / 60 kPa.
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.
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
The product must be installed and
maintained by authorised staff.
TM06 4529 2515

English (GB)
5
2.2 Location
The pump must be installed in a well-ventilated
location, protected from unfavourable weather
conditions. The ambient temperature must not
exceed 40/55 °C. See fig. 2.
Fig. 2 Weather conditions
We recommend that you place the pump as close as
possible to the liquid to be pumped.
2.2.1 Frost protection
If the pump is not used during periods of frosts, it
must be drained to avoid damage.
To drain the pump, remove the draining plug. See fig.
3.
Fig. 3 Draining the pump
2.3 Mechanical installation
2.3.1 Positioning the product
We recommend that you fasten the pump to the
foundation, thus ensuring that vibrations caused by
pump operation are absorbed. See fig. 4.
Fig. 4 Fastening the pump and pipes
2.3.2 Pipe connection
If the inlet pipe is longer than 10 metres or the
suction lift is greater than 4 metres, the diameter of
the pipe must be larger than 1". If a hose is used as
inlet pipe, it must be non-collapsible.
To prevent solids from entering the pump, you can fit
a filter to the inlet pipe. We recommend that you fit a
foot valve on the inlet side.
For suction lifts of over four metres or for long
horizontal stretches, we recommend that you use an
inlet pipe with a diameter larger than that of the inlet
opening of the pump.
Fig. 5 Inlet pipe sloping upwards
TM06 4530 2515TM06 4536 2515
Caution
The pump must be installed in horizontal
position.
Install the pump so that it is not stressed
by the pipework.
TM06 4531 2515
Caution
The internal diameters of the pipes must
never be smaller than that of the openings
of the pump.
Caution
To prevent the formation of air pockets, the
inlet pipe must slope slightly upwards
towards the pump. See fig. 5.
TM06 4532 2515

English (GB)
6
2.4 Electrical connection
Carry out the electrical connection according to local
regulations.
Check that the supply voltage and frequency
correspond to the values stated on the nameplate
and that it is possible to make a good earth
connection.
Single-phase motors incorporate a thermal switch
and require no additional motor protection.
3. Starting up the product
3.1 Priming the pump
1. Remove the priming plug. See fig. 6.
2. Fill the pump with water.
3. Refit the priming plug and tighten by hand.
The pump can now be started.
Fig. 6 Priming the pump
If there is a suction lift, up to five minutes may pass
from the moment the pump is started until it delivers
water. This period depends on the length and
diameter of the inlet pipe.
3.2 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.
Warning
The electrical installation must be carried
out by an authorised person in accordance
with local regulations and the wiring
diagram in the terminal box.
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 provide the
permanent installation with an earth
leakage circuit breaker (ELCB) with a
tripping current equal to or less than 30
mA.
Warning
Do not start the pump until it has been
filled with liquid.
Caution
The pump must not be started more than
20 times in one hour so as not to subject
the motor to excessive terminal shock.
Caution
The pump must not run without delivering
water for more than five minutes.
TM06 4534 2515

English (GB)
7
4. Servicing the product
4.1 Maintaining the product
In normal operation, the pump does not require any
specific maintenance.
4.1.1 Safety instructions and requirements
4.2 Spare parts and kits
Service kits are available for the JPC pump.
The service kits consist of the following replaceable
parts:
• shaft seal
• hydraulic parts
• capacitor.
5. Product introduction
The Grundfos jet pumps, type JPC, 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. The pumps are especially suited for use in
small-scale agriculture and gardening.
If the pump has been used for dirty liquids, e.g. pool
water, flush it through with clean water immediately
after use.
The pump can be permanently connected to the
water mains or connected to a hose set.
5.1 Identification
Fig. 7 Nameplate
Warning
If the power supply cable is damaged, it
must be replaced by the manufacturer, the
manufacturer’s service partner or a
similarly qualified person.
Warning
Service must only be performed by trained
service staff.
Warning
Before starting work on the product, switch
off the power supply. Make sure that the
power supply cannot be accidentally
switched on.
Warning
Do not use the pump for flammable liquids,
such as diesel oil and petrol.
TM06 7303 3216
Pos. Description
1 Pump type
2 Product number
3 Full-load current
4 Production date
5 Motor input power
6 Pump output power
7 Maximum liquid temperature [°C]
8 Country of production
9 Frequency
10 Enclosure class
11 Motor insulation class
12 Head
13 Approvals
14 Speed
15 Flow rate
16 Capacitor data
17 Supply voltage
DK-8850 Bjerringbro Denmark
Type: JPC 4-47 No:99074057 P4 1.1628
U: 1x220-240 V~ I1/1:3.8A 50Hz P1:0.85
12.5μF / 450 V~ Class:F IP:44 P2:0.8HP
Q: 0.4-3.6 m /h H: 41-20 m Tmax:55ºC
n: 2800 min Made in Hungary by Grundfos
1
17
16
15
14
13
23
4
5
6
7
8
12 11 10 9
3
-1

English (GB)
8
6. 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) The pump is blocked by
impurities.
Clean the pump. Check or replace the strainer
in the inlet pipe.
c) The motor is defective. Replace the pump.
2. The pump runs,
but gives no or just
a little water.
a) Pump is not filled with water. Prime the pump. See section 3.
b) The inlet pipe is blocked by
impurities.
Clean the pump. Check or replace the strainer
in the inlet pipe.
c) The pump is blocked by
impurities.
Clean the pump. Check or replace the strainer
in the inlet pipe.
d) The suction lift is too high
(over 7 metres).
Change the position of the pump.
e) The inlet pipe is too long. Change the position of the pump.
f) Diameter of inlet pipe is too
small.
Replace the inlet pipe.
g) The inlet pipe is not immersed
deeply enough.
Make sure that the inlet pipe is immersed
sufficiently.
h) The inlet pipe is leaking. Repair or replace the pipe.
3. The pump runs, but
gives no water or
delivers a reduced
quantity of water at
high pressure.
a) The discharge pipe is
blocked.
Clean pipe or open isolating valves, if fitted.
Check that no additional work is being carried
out in the system.
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.
• Motor defective.
Replace the pump.

English (GB)
9
7. Technical data
Maximum ambient temperature
40/55 °C.
See nameplate.
Liquid temperature
Domestic use: 0-35 / 0-60 °C.
Other use: 0-40 °C.
See nameplate.
Maximum operating pressure
6 bar / 600 kPa.
Maximum head
JPC 3-42: 42 m.
JPC 4-47: 47 m.
JPC 4-54: 54 m.
Maximum inlet pressure
JPC 3-42: 1.8 bar / 180 kPa.
JPC 4-47: 1.3 bar / 130 kPa.
JPC 4-54: 0.6 bar / 60 kPa.
Maximum suction lift
8 metres, including a pressure loss, at a liquid
temperature of 20 °C.
Supply voltage
1 x 115 V, 60 Hz
1 x 230 V, 50 Hz
1 x 230 V, 60 Hz.
Insulation class
F.
Enclosure class
IP44.
Relative air humidity
Maximum 95 %.
Maximum sound pressure level
JPC 3-42: 82.9 dB.
JPC 4-47: 84.8 dB.
JPC 4-54: 88.0 dB.
Frequency of starts and stops
Maximum 20 per hour.
8. Disposing of the product
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.
Subject to alterations.

Arabic (AR)
10
  .7 .7
   
.C° 55/40
.   
  
: .C° 60-0/35-0
: .C° 40-0
.   
  
6/ 600. 
 
JPC 3-4242 :

JPC 4-4747 :
JPC 4-5454 :
  
JPC 3-421,8 :/ 180. 
JPC 4-471,3 :/ 130. 
JPC 4-540,6 :/ 60. 
  
8         20
.
 
115 × 160
230 × 150
230 × 160
 
F.
  
IP44.
  
%95. 
   
JPC 3-4282,9 :.
JPC 4-4784,8 :.
JPC 4-5488,0 :.
   
20.    
         
:
.  
   .8 .8
.       .1 .1
         
. 
.2
.2