GRUNDFOS INSTRUCTIONS

JP PS
Jet pumps with pressure switch, 115/230 V, 60 Hz
Installation and operating instructions

English (US)Installation and operating instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3

Table of contents

JP PS

English (US)English (US) Installation and operating instructions
Original installation and operating instructions

Table of contents
1.

Limited warranty . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2.
2.1
2.2
2.3

General information . . . . . . . . . . . . . . . . . . . . . . . . 4
Target group. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Hazard statements . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.
3.1
3.2

Receiving the product . . . . . . . . . . . . . . . . . . . . . . . 5
Inspecting the product. . . . . . . . . . . . . . . . . . . . . . . . 5
Scope of delivery . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4.
4.1
4.2
4.3

Installing the product . . . . . . . . . . . . . . . . . . . . . . . 5
Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical connection. . . . . . . . . . . . . . . . . . . . . . . . . 9

5.
5.1
5.2

Startup of the product . . . . . . . . . . . . . . . . . . . . . . 15
Priming the product . . . . . . . . . . . . . . . . . . . . . . . . 15
Starting up the product . . . . . . . . . . . . . . . . . . . . . . 16

6.
6.1
6.2
6.3

Product introduction. . . . . . . . . . . . . . . . . . . . . . . 16
Product overview, JP PS . . . . . . . . . . . . . . . . . . . . . 16
Pumped liquids . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7.
7.1
7.2

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Service kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8.
8.1
8.2
8.3

Taking the product out of operation . . . . . . . . . . . . . 18
Draining the pump . . . . . . . . . . . . . . . . . . . . . . . . . 18
Storage of the product. . . . . . . . . . . . . . . . . . . . . . . 18
Frost protection . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

9.
9.1
9.2
9.3
9.4

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 19
The motor does not start and makes no noise . . . . . . . . 19
The motor does not start but makes noise . . . . . . . . . . 19
The motor turns with difficulty . . . . . . . . . . . . . . . . . . 19
The motor does not stop when the demand for water
has ceased . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9.5 The pump does not deliver water . . . . . . . . . . . . . . . . 19
9.6 The pump does not prime . . . . . . . . . . . . . . . . . . . . 19
9.7 The pump supplies insufficient flow . . . . . . . . . . . . . . . 20
9.8 The pump vibrates and operates noisily . . . . . . . . . . . . 20
9.9 The pump stops unexpectedly during operation andstarts again after a while . . . . . . . . . . . . . . . . . . . . . 20
9.10 The pressure switch starts and stops frequently during
normal water delivery . . . . . . . . . . . . . . . . . . . . . . . 20
10.
10.1
10.2
10.3
10.4

Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Operating conditions. . . . . . . . . . . . . . . . . . . . . . . . 21
Head and flow rate . . . . . . . . . . . . . . . . . . . . . . . . . 21
Inlet pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Miscellaneous data . . . . . . . . . . . . . . . . . . . . . . . . 21

11.

Disposing of the product . . . . . . . . . . . . . . . . . . . . 21

1. Limited warranty
Products manufactured by Grundfos Pumps Corporation (Grundfos)
are warranted to the original user only to be free of defects inmaterial and workmanship for a period of 24 months from date of
installation, but not more than 30 months from date of manufacture.
Grundfos' liability under this warranty shall be limited to repairing or
replacing at Grundfos' option, without charge, F.O.B. Grundfos'
factory or authorized service station, any product of Grundfos
manufacture. Grundfos will not be liable for any costs of removal,
installation, transportation, or any other charges that may arise in4

connection with a warranty claim. Products which are sold, but not
manufactured by Grundfos, are subject to the warranty provided by
the manufacturer of said products and not by Grundfos'
warranty. Grundfos will not be liable for damage or wear to productscaused by abnormal operating conditions, accident, abuse, misuse,
unauthorized alteration or repair, or if the product was not installedin accordance with Grundfos' printed installation and operating
instructions and accepted codes of good practice. The warranty
does not cover normal wear and tear. To obtain service under thiswarranty, the defective product must be returned to the distributor ordealer of Grundfos' products from which it was purchased together
with proof of purchase and installation date, failure date andsupporting installation data. Unless otherwise provided, thedistributor or dealer will contact Grundfos or an authorized service
station for instructions. Any defective product to be returned toGrundfos or a service station must be sent freight prepaid;
documentation supporting the warranty claim and/or a Return
Material Authorization must be included if so instructed. Grundfos
will not be liable for any incidental or consequential damages,
losses, or expenses arising from installation, use, or any othercauses. There are no express or implied warranties, including
merchantability or fitness for a particular purpose, which extend
beyond those warranties described or referred to above. Somejurisdictions do not allow the exclusion or limitation of incidental orconsequential damages and some jurisdictions do not allow
limitations on how long implied warranties may last. Therefore,theabove limitations or exclusions may not apply to you. This warranty
gives you specific legal rights and you may also have other rights
which vary from jurisdiction to jurisdiction. Products which arerepaired or replaced by Grundfos or authorized service center
under the provisions of these limited warranty terms will continue tobe covered by Grundfos warranty only through the remainder of theoriginal warranty period set forth by the original purchase date.

2. General information
This appliance can be used by children aged from 8 years
and above and persons with reduced physical, sensory or
mental capabilities or lack of experience and knowledge ifthey have been given supervision or instruction
concerning use of the appliance in a safe way andunderstand the hazards involved.
Children shall not play with the appliance. Cleaning anduser maintenance shall not be made by children without
supervision.
Read this document before you install the product.
Installation and operation must comply with local
regulations and accepted codes of good practice.

2.1 Target group
These installation and operating instructions are intended for
professional as well as non-professional users.

2.2 Hazard statements
The symbols and hazard statements below may appear in Grundfos
installation and operating instructions, safety instructions andservice instructions.

DANGER
Indicates a hazardous situation which, if not avoided, will
result in death or serious personal injury.

WARNING
Indicates a hazardous situation which, if not avoided,
could result in death or serious personal injury.

CAUTION
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate personal injury.

SIGNAL WORD
Description of the hazard
Consequence of ignoring the warning•

Action to avoid the hazard.

4. Installing the productEnglish (US)The hazard statements are structured in the following way:

4.1 Location
The product can be installed both indoors and outdoors. Use asuitable cover to protect the product from direct sunlight, rain or
snow.
Please observe the following:

2.3 Notes•

The symbols and notes below may appear in Grundfos installationand operating instructions, safety instructions and service
instructions.

Install the product in a well-ventilated location to ensure coolingof its components.

•

Install the product to enable easy inspection, maintenance andservice.

•

We recommend that you place the product as close to theliquid to be pumped as possible.

•

We recommend that you install the product near a drain or in a
drip tray connected to a drain in order to lead away possible
condensation from cold surfaces.

FM

Observe these instructions for explosion-proof products.

A blue or gray circle with a white graphical symbol
indicates that an action must be taken.

Related information
4.1.3 Ambient temperature during operation

A red or gray circle with a diagonal bar, possibly with ablack graphical symbol, indicates that an action must not
be taken or must be stopped.

4.1.1 Minimum space

If these instructions are not observed, it may result in
malfunction or damage to the equipment.

•

We recommend a clearance of 20 inches (0.5 m) on threesides of the product which should include the rear for cooling of
the motor.

•

The motor is fan-cooled, so do not block the fan cover.

•If you install the product with one side against a wall, makesure that the nameplate is visible.

Tips and advice that make the work easier.

3. Receiving the product3.1 Inspecting the productOn receipt of the product, do the following:
1.

Check that the product is as ordered.
If the product is not as ordered, contact the supplier.

2.

Make sure that the supply voltage and frequency correspond tothe values stated on the product nameplate.

Related information

Ensure sufficient space for service and maintenance, and for motor
cooling.

4.1.2 Installation of the product in a frosty environment
Protect the product from freezing if it is to be installed outdoors
where frost may occur.
4.1.3 Ambient temperature during operation
The ambient temperature range for continuous operation(S1 mode) is up to 104 °F (40 °C).
The ambient temperature range for intermittent operation(S3 mode) is 104 to 131 °F (40 to 55 °C).
During intermittent operation (S3 mode), the product shuts off
periodically to avoid overheating.

6.3.1 Nameplate example for JP PS

Ambient temperature, continuous operation (S1 mode)

3.2 Scope of delivery

Up to 104 °F The pump can run continuous operation. Forintermittent operation, see the table below.
(40 °C)The box contains the following items:•

1 Grundfos JP PS pump•

1 Quick Guide•

1 Installation and Operating Instructions booklet.

Ambient temperature, intermittent operation (S3 mode)
The overheating protection ensures that the pumpruns intermittent operation when the airtemperature is too high to cool the motor
104 to 131 °F
efficiently.
(40 to 55 °C)
Example of intermittent cycle: the pump runs for 20
minutes and stops for 40 minutes before it starts
again.
Related information
4.1 Location
10.1 Operating conditions5

4.2.2 Connecting the pipe system

WARNING

Install the product so that it is not stressed by the pipe
system.

Electric shock
Death or serious personal injury‐ Switch off the power supply before you start any workon the product.Make sure that the power supply cannot
be switched on accidentally.

Pipe dimensions:•

The diameter of the inlet pipe must be larger than 1
inch, if the inlet pipe is longer than 32.8 ft (10 m), or if
the suction lift exceeds 13.1 ft (4 m).

Crushing of feet
Minor or moderate personal injury‐ Wear safety shoes when handling the product.

•

If a hose is used as inlet pipe, it must be noncollapsible.

CAUTION

We recommend that you install isolating valves on boththe inlet and outlet side of the pump.

CAUTION

Impurities in the water
Minor or moderate personal injury‐ Before the pump is used for supplying drinking water,
flush the pump thoroughly with clean water.

JP PS installations require a pressure tank.

4.2.1 Mounting the product•

Place the product in a horizontal position with a maximum
inclination angle of ± 5 °. The base plate must be facing
downwards.

•

Fasten the product to a solid horizontal foundation with screws
through the holes in the base plate.

1.

TM073985

F

Fig.

G

Foundation of JP PS pumpPos.

[in (mm)]F

1.85 (47)G

4.33 (110)

To ensure optimum operation and longer life of the pump, apressure tank with a properly set air charge is included in the
installation. See the tank manufacturer's instructions for propertank size selection and specific setting of the air charge. See
table below for general guidelines.
Pressure switch
cut-on pressure[psi]

Tank air pre-charge(no water pressure)
[psi]

20

18

30

28

40

38

2.

Seal the pipe fittings with thread sealing tape or similar.

3.

Connect the pipes to the inlet and outlet port on the pump. Do
not let the pump support the pipes.
Use a pipe wrench or similar tool.

4.

Fit a foot valve to the inlet pipe if the pump is installed above
the liquid level, for example, if you pump from a well, tank or
reservoir. We recommend using a foot valve with a strainer.

5.

We recommend installing a filter on the inlet side to protect thepump from sand, gravel or other debris if the pump is to be
used for pumping rainwater or well water.

6.

Make sure that the inlet pipe has a gradual, slight upward slope
towards the pump to avoid air pockets, especially undersuction-lift conditions.

TM074041

English (US)

4.2 Mechanical installation

Fig.

6

Inlet pipe with gradual upward slope towards the pumpEnglish (US)

4.2.2.1 Maximum system pressure
Make sure that the system in which the pump is installedis designed for the maximum pump pressure.

TM058227

The maximum inlet pressure depends on the feet of head at theactual duty point. The sum of the inlet pressure and the feet of headmust not exceed the maximum system pressure.
We recommend installing a pressure-relief valve to protect thepump so that the outlet pressure does not exceed the maximum
system pressure.
Related information
10.1 Operating conditions

Fig.

10.3 Inlet pressure

Correct pipe sizing for connection to the pump inlet oroutlet4.2.2.3 Adjusting the pressure switch

4.2.2.2 Inlet and outlet pipes
Please follow these general precautions when connecting the inlet
and outlet pipes.

See the wiring diagram on the inside of the protective
cover on the pressure switch.

Do not let the pump support the pipes. Use pipe hangers
or other supports at proper intervals to provide pipe
support near the pump.

A full turn of the adjustment nut is 2.5 psi.
1.

•

Install the pipes so that air pockets are avoided, especially on
the inlet side of the pump.

Turn the larger nut clockwise to raise the cut-on/cut-off
pressures.

2.

•

Use eccentric reducers with the tapered side down.

Turn the smaller clockwise to raise the the cut-off pressure
only.

•

Make sure the pipes are as straight as possible to avoid
unnecessary bends and fittings. We recommend long-radius 90° pipe bends to decrease friction loss.

•

Run the inlet pipe as direct as possible and, ideally, make surethe length is at least ten times the pipe diameter.

•

If possible, run a horizontal inlet line. We recommend a gradualupward slope for pumps operating in suction-lift conditions, anda gradual downward slope for pumps operating in positive inletpressure conditions.

•

A short pipe must be of the same diameter as the inlet port orlarger.

•A long pipe must be one or two sizes larger than the inlet port,
depending on the length.

TM040338

The internal diameter of the pipes must never be smaller
than the diameter of the pump ports.

Fig.

Recommended pipe installation to avoid friction and air
pockets7

We recommend that you follow the installation examples.
Valves are not supplied with the pump.
4.2.3.1 Suction from a tank
7

4

3

4

1
1

2
5
3
2

3
7

5
6

Pos. Description

6

Pos. Description

Highest faucet

1

Highest faucet

2

Isolating valve

2

Isolating valve

3

Pipe support

3

Pipe support

4

Pressure tank4

Pressure tank

5

Drain to sewer

5

Slight downward slope

6

Strainer. A foot valve is optional. We recommend using afoot valve together with JP PS.

6

Foot valve with strainer. The foot valve is optional. We
recommend using a foot valve with a JP PS installation.

7

Slight downward slope

7

Pump and tank cover

1

8TM073984

3

TM073986

English (US)

4.2.3.2 Suction from a well (outdoor installation)

4.2.3 Installation examples

4.3.2 Connecting to the power supply

WARNINGWARNING

Electric shock
Death or serious personal injury‐ Switch off the power supply before you start any workon the product. Make sure that the power supply
cannot be switched on accidentally.

Electric shock
Death or serious personal injury‐ Disconnect the main switch prior to electrical work.
‐ Assume all wires are live. Use an electrical tester toconfirm the power is off at each wire.

WARNINGWARNING

Electric shock
Death or serious personal injury‐ The product is ready for connection with a groundingtype attachment plug or for direct wiring. To reduce therisk of electric shock, be certain that the product isconnected only to a properly grounded, grounding-type
receptacle (protective earth).

Electric shock
Death or serious personal injury‐ Power supply cables without a plug must be connected
to a supply disconnecting device incorporated in the
fixed wiring according to the local wiring regulations.
Do not turn on the power supply until the pump has been
filled with liquid.

WARNING
Electric shock
Death or serious personal injury‐ If national, state, or local regulation requires a GFCI
(ground fault circuit interrupter) or equivalent in theelectrical installation, this must be Class A or better.

English (US)

4.3 Electrical connection

This product is delivered without a power cable. The pump can be
powered by connecting it to:•a power cable•

residential hard wiring (115 or 230 V).

WARNING

Related information

Electric shock
Death or serious personal injury‐ If the product is used for cleaning or maintenance ofgarden ponds or similar places, make sure that the
product is supplied through a GFCI (ground fault circuit
interrupter) with a rated residual operating current notexceeding 6 mA.

4.3.2.1 Identifying voltage in existing residential wiring installations

All electrical connections must be carried out by qualified
persons in accordance with local regulations.

Make sure that the electrical installation supports the rated
current [A] of the product. See the product's nameplate.

4.3.3 Setting the voltage converter
4.3.2.1 Identifying voltage in existing residential wiring
installations•

Disconnect the main switch prior to electrical work.

•

Always assume all wires are live. Use an electrical tester toconfirm the power is off at each wire.

•

Verify the voltage in the existing electrical installation before
installing the pump. Check the circuit breaker box for
information.

•

Possible wire colors are listed in the table. If in doubt, checkwith a qualified electrician.

4.3.1 Motor protection

115 V

230 V
TM074060

The pump incorporates current- and temperature-dependent motor
protection. If the pump is running without water, is blocked orotherwise overloaded, the built-in thermal switch will cut out. Whenthe motor has cooled sufficiently, it will restart automatically.
No external motor protection is required.

Pos.

115 V wirecolorsPos.

230 V wirecolorsL

Black (live)

L1

Black (live)

N

White or gray(neutral)

L2

Red (live)

G

Green (groundfor power cable)or bare copper(ground for hardwiring)G

Green (groundfor power cable)or bare copper(ground for hardwiring)Related information
4.3.2 Connecting to the power supply

9

Follow these steps to connect a power cable to the product:
1.

Loosen the nut on the top cover of the pressure switch.

2.

Lift up the pressure switch cover and set it aside.

3.

Inside the pressure switch, gently push aside the factory wires.
Do not disconnect them.

4.

Locate the open knockout in the metal plate inside the pressure
switch.

5.

In the knockout, install a clamp-type fitting designed forconnecting a power cable.

6.

Loosen the screws on the clamp.

7.

Strip wire ends of the power cable wires.

8.

Install crimp connectors on wire ends.

9.

Push the wire ends through the opening in the clamp.

10. Follow the wiring diagram to connect the wire ends to theterminal screws in the pressure switch.
11. Tighten the terminal screws. Avoid overtightening.
12. Tighten the clamp screws to hold the wires in place.
13. Refit the top cover. Replace the nut and hand tighten it.
14. If the other end of the power cable does not have a pre-molded
three-pronged plug, strip the wire ends and connect the power
cable wires to a three-pronged plug.
15. Do not plug the power plug into an electrical outlet until thevoltage selection and priming are completed.

L
N
G
TM074240

English (US)

4.3.2.2 Connecting a 115 or 230 V power cable

Fig.

Connecting a power cable

Related information
4.3.2.4 Wiring diagram, pressure switch to 115 V power cable
4.3.2.5 Wiring diagram, pressure switch to 230 V power cable10English (US)

4.3.2.3 Connecting to residential hard wiring, 115 or 230 V
For residential hard wiring, use the following:
Pump model

Recommended cable type

JP PS, all models, 115 V or 230 V

SJOW 12AWGx3 UL

Follow these steps to connect the the product to the power supply:
1.

Loosen the nut on the top cover of the pressure switch.

2.

Lift up the pressure switch cover and set it aside.

3.

Inside the pressure switch, gently push aside the factory wires.
Do not disconnect them.

4.

Locate the open knockout in the metal plate inside the pressure
switch.

5.

In the knockout, install a clamp-type fitting designed forresidential hard wiring.

6.

Loosen the screw on the clamp.

7.

Strip wire ends of the residential hard wiring.

8.

Push the wire ends through the opening in the clamp.

9.

Follow the wiring diagram to connect to the terminal screws in
the pressure switch.

10. Tighten the terminal screws. Avoid overtightening.
11. Tighten the clamp screw to hold the wires or conduit in place.
12. Refit the top cover. Replace the nut and hand tighten it.
13. Strip the other end of the residential hard wiring.
14. Connect the residential hard wiring to an external main switch.
15. Do not power up the pump until the voltage selection andpriming are completed.

L1
N (115 V)
L2 (230 V)

Fig.

TM074222

G
Connecting to residential hard wiring, 115 or 230 V

Related information
4.3.2.6 Wiring diagram, pressure switch to 115 V residential hardwiring4.3.2.7 Wiring diagram, pressure switch to 230 V residential hardwiring

11

4

M1

M2

L2 PS

L1

4

2

M1

M2

2

1
3

G2

G1

1
3

G2

Pos.

Description

Pos.

Description

PS

Pressure switch

PS

Pressure switch

1

Power cable (in)1Power cable (in)2

To motor (out)2

To motor (out)

3

Motor

3

Motor

4

Capacitor

4

Capacitor

From power cable to pressure switch

From power cable to pressure switch

G1

Green (ground)

G1

Green (ground)

L1

Black (live)

L1

Black (live)

L2

White (neutral)

L2

Red (live)

From pressure switch to motor

From pressure switch to motor

G2

Yellow (ground)

G2

Yellow (ground)

M1

Brown (live)

M1

Brown (live)

M2

Blue (neutral)

M2

Blue (neutral)

G1

Related information

Related information

4.3.2.2 Connecting a 115 or 230 V power cable

4.3.2.2 Connecting a 115 or 230 V power cable

12

L2 PS

TM074151

L1

TM074151

English (US)

4.3.2.5 Wiring diagram, pressure switch to 230 V power cable

4.3.2.4 Wiring diagram, pressure switch to 115 V power cable

4

M1

M2

L2 PS

L1

4

2

M1

M2

L2 PS

2
1

3

G2

G1

TM074151

1
3

G2

Pos.

Description

Pos.

Description

PS

Pressure switch

PS

Pressure switch

1

Residential hard wiring (in)1

Residential hard wiring (in)2

To motor (out)2

To motor (out)

3

Motor

3

Motor

4

Capacitor

4

Capacitor

From residential hard wiring to pressure switch

From residential hard wiring to pressure switch

G1

Bare copper (ground)

G1

Bare copper (ground)

L1

Black (live)

L1

Black (live)

L2

White (neutral)

L2

Red (live)

From pressure switch to motor

From pressure switch to motor

G2

Yellow (ground)

G2

Yellow (ground)

M1

Brown (live)

M1

Brown (live)

M2

Blue (neutral)

M2

Blue (neutral)

G1

Related information

Related information

4.3.2.3 Connecting to residential hard wiring, 115 or 230 V

4.3.2.3 Connecting to residential hard wiring, 115 or 230 V

TM074151

L1

English (US)

4.3.2.7 Wiring diagram, pressure switch to 230 V residential
hard wiring

4.3.2.6 Wiring diagram, pressure switch to 115 V residential
hard wiring

13

English (US)4.3.3 Setting the voltage converter

WARNING
Electric shock
Death or serious personal injury‐ Do not pull the voltage switching plug by the wires. To
avoid damage, only use a firm hand grip around thevoltage switching plug.
1.

Check the voltage indicated on the side of the voltage
converter.

2.

Turn the indicator so that the desired voltage (115 V or 230 V)
points towards the side with the "M" lock catch.

3.

The arrow on the converter next to the required voltage mustbe aligned with the "F" arrow on the housing.

4.

Push the converter into position until the reference catch "M"clips in place.

230V

115V

Related information
4.3.2 Connecting to the power supply
5. Startup of the product14

5.1 Priming the productEnglish (US)

5. Startup of the product

WARNING
Electric shock
Death or serious personal injury‐ Do not use the product for cleaning and othermaintenance of swimming pools or similar places if
there are people in the water.

CAUTION

Always tighten the priming plug by hand.
1.

Unscrew the priming plug.

2.

Fill the pump with water.

3.

Refit the priming plug and tighten by hand.

Hot surface
Minor or moderate personal injury‐ Use protective gloves if the liquid or ambient
temperature is higher than 104 °F (40 °C).

1

CAUTION
Hot surface
Minor or moderate personal injury‐ Do not run the pump continuously with a closed inlet oroutlet valve.

CAUTION
Hot or cold liquid
Minor or moderate personal injury‐ Make sure that escaping hot or cold liquid does notcause injury to persons or damage to the equipment.

2

Do not turn on the power supply until the pump has been
filled with liquid.

The number of starts and stops must not exceed 20 times
per hour.

3

The pump must not run without delivering water for morethan 5 minutes.

TM074061

Only use the product for the intended use and for the
pumped liquids stated in these installation and operating
instructions.
Related information
4.3.3 Setting the voltage converter
5.1 Priming the productFig.

Priming the JP PS pump

6.1.1 Intended use

Related information

6.2 Pumped liquids

5. Startup of the product

15

Pos.

Description

After installing the product, do the following:5

Base plate

1.

Open all isolating valves. Make sure that the water supply is
sufficient on the inlet side of the pump.

6

Drain plug

2.

Turn on the power supply to the pump, and the pump will start.
If there is a suction lift, it can take up to five minutes before thepump delivers water. This period depends on the length anddiameter of the inlet pipe.

7

Inlet connection, 1" NPT

3.

Open the tapping point that is highest or furthest away from thepump to let out air trapped in the system.

4.

When water flows through the tapping point, close it.

5.

Startup is completed, and the pump is ready for operation.

6.1.1 Intended use
Only use the product according to the specifications
stated in these installation and operating instructions.
The product is suitable for pressure boosting of clean water indomestic water-supply systems.
Related information

5.2.1 Shaft seal run-in
The shaft seal faces are lubricated by the pumped liquid. A slightleakage from the shaft seal of up to 10 ml per day or 8 to 10 drops
per hour may occur. Under normal conditions, the leaking liquid will
evaporate. As a result, no leakage will be detected.
When the pump is started for the first time, or when the shaft seal
has been replaced, a certain run-in period is required before theleakage is reduced to an acceptable level. The time required for thisdepends on the operating conditions, that is, every time theoperating conditions change, a new run-in period will be started.
Leaking liquid will drain through the drain holes in the motor flange.
Install the product in such a way that leakage cannot cause
undesirable collateral damage.

5. Startup of the product6.2 Pumped liquids

6.2 Pumped liquidsWARNING
Flammable material
Death or serious personal injury‐ Do not use the product for flammable liquids such as
diesel oil, gasoline or similar liquids. The product must
only be used for water.

WARNING
Toxic material
Death or serious personal injury‐ Do not use the product for toxic liquids.The productmust only be used for water.

6. Product introduction
JP PS
Grundfos JP PS pumps are designed for domestic use and ensure
a constant supply of clean water to households and gardens as wellas light commercial applications.
JP PS is a self-priming, single-stage centrifugal jet pump. The jetpump has excellent suction capacity and is designed for long andtrouble-free operation. The built-in ejector with guide vanes ensures
optimum self-priming properties. JP PS is small and compact. The
pump housing is made of stainless steel.
JP PS pumps have a built-in pressure switch. The pressure control
allows the pump to start and stop automatically according to
demand when you open the tap.

6.1 Product overview, JP PSWARNING
Corrosive substance
Death or serious personal injury‐ Do not use the product for aggressive liquids. The
product must only be used for water.
If the water contains sand, gravel or other debris, there isa risk of pump blockage and pump damage. Install a filteron the inlet side or apply a floating strainer to protect thepump.
The product is suitable for pumping clean, thin, non-aggressive,
non-toxic and non-explosive liquids without solid particles or fibers.
Examples of liquids:

4

2

•

potable water•

rainwater.

Related information

1

5. Startup of the product3

6.1.1 Intended use
75TM074051

English (US)

5.2 Starting up the product

6

Pos.

Description

1

Priming plug2

Outlet connection, 1" NPT

3

Pressure switch and cable connection

4

Terminal box

16

6.3 Identification
6.3.1 Nameplate example for JP PS

Example:JP PS 18-05-154 1x115/230V 60 Hz Conduit XX

TM074087

PS 18 04 154

Fig.

English (US)

6.3.2 Type key, JP PS

Type designation

DescriptionJP

Jet pump

PS

Pressure switch

18

Nominal flow rate [US gpm]

05

Horsepower [Hp]154

Max. head [ft]1x115/230V

Dual voltage (115 or 230 V)

60 Hz

Frequency [Hz]ConduitType of power connection

XX

Country of origin (Example: HU (Hungary)

Nameplate, JP PS

Pos.

Description

1

Type (see the type key)

2

Min. flow rate and max. flow rate [gpm]3Min. head and max. head [ft]4Max. pressure [psi]5Supply voltage [V]6

Enclosure type7

Approvals

8

Full-load current [A]9Speed of rotation [rpm]10Country of origin

11

Capacitor data

12

Power consumption [Hp]13

Rated power [Hp]14

Insulation class

15

Enclosure class16

Serial number

17

Max. liquid temperature [°F]18Max. ambient temperature [°F]19

Factory, production code, year and week

20

Product number

21

Frequency

22

Service factor

Related information
3.1 Inspecting the product

17

WARNING
Electric shock
Death or serious personal injury‐ Switch off the power supply before you start any workon the product. Make sure that the power supply
cannot be switched on accidentally.

8.1 Draining the pump
To drain the JP PS pump:1.

Unscrew the drain plug using a screwdriver.

2.

Let the water flow out of the pump.

3.

When the pump is empty, refit the plug by hand.

1

WARNING
Chemical hazard
Death or serious personal injury‐ Make sure that the product has only been used forwater. If the product has been used for pumping
aggressive liquids, flush the system with clean water
before you start work on the product.

WARNING
Pressurized system
Death or serious personal injury‐ Before dismantling the pump, drain the system or close
the isolating valves on both sides of the pump. Slowly
loosen the drain plug and depressurize the system.

2

CAUTION
Minor or moderate personal injury‐ Before the pump is used for supplying drinking water,
flush the pump thoroughly with clean water.

Only qualified persons are allowed to service the pump.

3

7.1 Maintenance
The product is maintenance-free during normal operation. For
cleaning, use a dry and dust-free cloth.

TM074088

English (US)

7. Service

7.2 Service kits
For further information on service kits, see Grundfos Product Centerat https://us.grundfos.com/products.

8. Taking the product out of operation

WARNING
Electric shock
Death or serious personal injury‐ Switch off the power supply before you start any workon the product. Make sure that the power supply
cannot be switched on accidentally.
If the product is taken out of operation for a period of time, forexample, during winter, it must be disconnected from the power
supply and placed in a dry location. Follow these steps:

Fig.

Draining the JP PS pump

Related information
8. Taking the product out of operation

8.2 Storage of the product

WARNING
Electric shock
Death or serious personal injury‐ Switch off the power supply before you start any workon the product. Make sure that the power supply
cannot be switched on accidentally.

1.

Disconnect the product from the power supply.

2.

Open a tap to release the pressure in the pipe system.

3.

Close the isolating valves and/or drain the pipes.

4.

Gradually loosen the drain plug to release the pressure in the
product.

If the product is to be stored for a period of time, for example,
during winter, drain it by removing the drain plug and store theproduct indoors in a dry location.
During storage, the temperature must be between -40 and+158 ˚F (-40 and +70 ˚C) and have a maximum relative humidity of
98 % RH.

5.

Drain the product.

Related information

6.

Store the product according to the recommended storing
conditions.

8. Taking the product out of operation

Related information
8.1 Draining the pump
8.2 Storage of the product18

8.3 Frost protection
If the product is not used during periods of frost, it must be drained
to avoid damage.

9.3 The motor turns with difficulty

9.1 The motor does not start and makes no noise

Cause

Insufficient voltage or blockage

CausePower supply failure

Remedy•Check the voltage which may beinsufficient. Correct any errors.

Remedy•Check the electrical connections. If the fault isrepeated immediately, this means the motor isshort circuiting.

•

Check whether any moving parts are scraping
against fixed parts. Eliminate the cause of thescraping.

•

Check that the motor is live. If the fault isrepeated immediately, this means that the
motor is short circuiting.

•

Check the protection fuses or breakers. If
required, change burnt fuses or switch on
tripped breakers.

•

Check that the pressure switch is live. Verify
power at the switch terminals.

•

Ensure that the tank pre-loading pressure is
not higher than the minimum value of thepressure switch. Set the pre-loading pressure
at 2 psi below the minimum value of thepressure switch.

9.2 The motor does not start but makes noise
Cause

Problem with electrical connections or blockage

Remedy•9.4 The motor does not stop when the demand for water
has ceased
Cause

Problem with the pressure switch

Remedy•Ensure that the value at which the pressure
switch is set to stop the motor is not higher
than the pressure than the pump can generate(suction + delivery). Set the pressure switch ata lower pressure.

•Check that the pressure switch contacts movefreely. If not, change the pressure switch.

9.5 The pump does not deliver water
Cause

Insufficient intake or priming failure

Remedy•The pump has not been primed correctly.
Repeat the priming procedure.

•

The diameter of the intake pipe isinsufficient. Replace the pipe with a larger
diameter one.
Blocked foot valve. Clean the foot valve.

Ensure that the power supply values are thesame as the values on the nameplate. Correct
any errors.

•

Ensure that the connections have been madecorrectly. Correct any errors.

••

Check the condition of the capacitor. Replace
the capacitor.

9.6 The pump does not prime•

Look for possible blockages in the pump or
motor. Remove the blockage.

Cause

Air pockets

Remedy•The intake pipe or the foot valve is taking inair. Correct the problem and prime again.

•

The downward slope of the intake pipe favors
the formation of air pockets. Correct the
inclination of the intake pipe.

19

English (US)

9. Troubleshooting

English (US)

9.7 The pump supplies insufficient flow
Cause

Insufficient intake due to blockage or worn parts

Remedy•Blocked foot valve. Clean the foot valve.

•

The impeller is blocked or worn. Remove theblockage or replace the worn parts.

•

The diameter of the intake pipe isinsufficient. Replace it with a larger diameterpipe.

9.10 The pressure switch starts and stops frequently
during normal water delivery
Cause

Incorrect pressure switch setting

Remedy•Check the setting of the pressure
switch. Increase the setting value incrementally
until the problem is resolved. Do not forget toreset the minimum intervention pressure.

•

Ensure that the air charge in the pressure tankis set at 2 psi less than the pressure switch
setting while there is no water pressure in thesystem.

•The pressure tank diaphragm is broken.
Replace the pressure tank.

9.8 The pump vibrates and operates noisily
Cause

Loose parts or problem with flow

Remedy•Check that the pump and the pipes are firmly
anchored. Tighten or fix the loose parts.

•

Cavitation in the pump, that is greater demandthan the pump's ability to deliver. Reduce theintake height or check for load losses.

•

The pump is running above its intended
maximum capacity. Limit the flow at delivery.

9.9 The pump stops unexpectedly during operation andstarts again after a while
Cause

Overheating

Remedy•The thermal switch in the motor has tripped.
The motor will restart when it has cooled. If not,check the impeller for blockage. Check that theambient temperature is below that stated on
the nameplate.

•

If you find no blockage or high ambient
temperature, then the motor is defective.
Replace the product.

2010.1 Operating conditions
System pressure

Max. 87 psi (6 bar / 0.60 MPa)

Suction lift

Max. 26.25 ft (8 m), including inlet-pipepressure loss at a liquid temperatureof 68 °F (20 °C)

Liquid temperatureMax.
104 °F (40 °C) (S1 mode*) /140 °F (60 °C) (S3 mode**)Ambient
temperatureMax.
104 °F (40 °C) (S1 mode*) /131 °F (55 °C) (S3 mode**)Relative humidity

Max. 98 %Enclosure class

IP44

Insulation classF

Supply voltage

1 x 115 V, 60 Hz
1 x 230 V, 60 Hz

10.4 Miscellaneous dataCut-in pressure

Preset cut-in pressure (start pressure):
JP PS: 30-50 psi

Min./max. storage
temperature-4/+158 °F (-20/+70 °C)

11. Disposing of the product1.

Use the public or private waste collection service.

2.

If this is not possible, contact the nearest Grundfos company orservice workshop. See also end-of-life information at
www.grundfos.com/product-recycling.

3.

Consider recycling scrap metal to reduce waste and to help tolimit new mining.

Start/stop frequency Max. 20 per hourSound pressurelevelMax. sound pressure level of the pump:
JP 13 03 137: 68 [dB(A)]JP 18 05 154: 70 [dB(A)]JP 18 07 177: 74 [dB(A)]JP 22 10 157: 81 [dB(A)]* S1 mode: The pump runs continuous operation.
** S3 mode: The pump's overheating protection ensures the pump runs intermittent
operation when the air temperature is too high to cool the motor efficiently.

Related information
4.1.3 Ambient temperature during operation
4.2.2.1 Maximum system pressure

10.2 Head and flow rate

Max. head

JP PS 13 03 137: 137 ft (42 m)
JP PS 18 05 154: 154 ft (47 m)
JP PS 18 07 177: 177 ft (54 m)
JP PS 22 10 157: 157 ft (48 m)
JP PS 13 03 137: 13.2 gpm (3 m3/h)

Max. flow rate

JP PS 18 05 154: 17.6 gpm (4 m3/h)
JP PS 18 07 177: 17.6 gpm (4 m3/h)
JP PS 22 10 157: 22.0 gpm (5 m3/h)

10.3 Inlet pressure
ModelMax. inlet pressure

JP 13 03 137

21.75 psi (1.5 bar / 0.15 MPa)

JP 18 05 154

14.50 psi (1.0 bar / 0.10 MPa)

JP 18 07 177

7.25 psi (0.5 bar / 0.05 MPa)

JP 22 10 157

14.50 psi (1.0 bar / 0.10 MPa)

Related information
4.2.2.1 Maximum system pressure

21

English (US)

10. Technical dataGrundfos companies

U.S.A.
GRUNDFOS Pumps Corporation
9300 Loiret Boulevard
Lenexa, Kansas 66219 USA
Tel.: +1 913 227 3400
Fax: +1 913 227 3500
GRUNDFOS Water Utility Inc.
3905 Enterprise Court
P.O. Box 6620
Aurora, IL 60598-0620
Phone: +1-630-236-5500
Fax: +1-630-236-5511
GRUNDFOS CBS Inc.
902 Koomey Road
Brookshire, TX 77423 USA
Phone: 281-994-2700
Toll Free: 1-800-955-5847
Fax: 1-800-945-4777
Peerless Pump
2005 Dr. Martin Luther King Jr
US-46202 Indianapolis, Indiana U.S.A.
Phone:317-925-9661

CanadaGRUNDFOS Canada Inc.
2941 Brighton Road
Oakville, Ontario
L6H 6C9
Tel.: +1-905 829 9533
Fax: +1-905 829 9512

MexicoBombas GRUNDFOS de México
S.A. de C.V.
Boulevard TLC No. 15
Parque Industrial Stiva Aeropuerto
Apodaca, N.L. 66600
Tel.: +52-81-8144 4000
Fax: +52-81-8144 4010

Revision Info
Last revised on 13-10-2016

99613293 0319

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