Grundfos JPC Series User manual

JPC

Installation and operating instructions

GRUNDFOS INSTRUCTIONS

Table of contents

JPC

English (GB)

Installation and operating instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

(AR)

   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Declaration of conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

English (GB)

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)

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.

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)

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)

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

12 11 10 9

-1

English (GB)

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)

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

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)

 

   

.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

 

  

IP44.

  

%95. 

   

JPC 3-4282,9 :.

JPC 4-4784,8 :.

JPC 4-5488,0 :.

   

20.    

         

:

.  

  

.      

         

. 

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