KARCHER BP 4 Deep Well Submersible Pressure Pump Instruction Manual

: October 27, 2023
: Karcher

Table of Contents

KARCHER BP 4 Deep Well Submersible Pressure Pump
General information
Environmental protection
Operation
Cleaning
Maintenance
Transport
Storage
Special accessories
Troubleshooting
Specifications
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

KARCHER BP 4 Deep Well Submersible Pressure Pump

KARCHER-BP-4-Deep-Well-Submersible-Pressure-Pump-
PRODUCT

Please read these original operating instructions and the enclosed safety instructions prior to the initial use of your device. Proceed accordingly. Keep both booklets for future reference or subsequent owners.

General information

Proper use

This appliance has been designed for use in private households and is not intended for commercial use. The manufacturer is not responsible for any damages that may occur on account of improper use or wrong operations. The appliance is mainly intended for the delivery of clear water (without dissolved gases) from (deep) wells that can be fed into irrigation systems or the service water of a house (lavatory flush, washing machine, etc.). The appliance is not intended to be operated for recirculation in swimming pools, garden ponds and fountains.

CAUTION
Water that has been delivered with this appliance is no drinking water!

Approved fluids

Water with a contamination level up to a grain size of 0.9 mm
Washing lye
WARNING
Caustic, slightly inflammable and other explosive substances such as petrol, petroleum, diluted nitro-gen, greases, oils, salt water and wastewater from toilets as well as sludgy water that has a slower flow capacity than water, should not be transported using the pump. The temperature of the transported fluids should not exceed 35°C.
The appliance is not suitable for continuous pump operation or as a stationary installation (such as a lifting device, or fountain pump).

Warranty

The warranty terms published by the relevant sales company are applicable in each country. We will repair potential failures of your appliance within the warranty period free of charge, provided that such failure is caused by faulty material or defects in manufacturing. In the event of a warranty claim please contact your dealer or the nearest authorized Customer Service centre. Please submit the proof of purchase.

Danger or hazard levels

DANGER
Immediate danger that can cause severe injury or even death.
WARNING
Possible hazardous situation that could lead to severe injury or even death.
CAUTION
Pointer to a possibly dangerous situation, which can lead to minor injuries.
ATTENTION
Pointer to a possibly dangerous situation, which can lead to property damage.

Environmental protection

The packaging material can be recycled. Please do not throw the packaging mate-rial into household waste; please send it for recycling.
Old appliances contain valuable materi-als that can be recycled. Please arrange for the proper recycling of old appliances. Please dispose your old appliances using appropriate collection systems.

Notes about the ingredients (REACH)
You will find current information about the ingredients at: www.kaercher.com/REACH

Operation

Description of the Appliance

Check valve (pre-assembled)
Connection G1 (33.3) internal thread
Switch cabinet/ remote control
Fuse
On / Off switch
Power cord with plug
Fastening rope
Spacer foot
Intake grille/ pre-filter
Connection adapter for pumps G1
Hose connection pieces 1″ and 3/4″
Hose clip
Eyelet for fastening rope

Preconditions

In order to ensure the faultless operation of the appliance, the following preconditions must be fulfilled:

Minimum diameter of the well pipe: 15 cm
The aquifer is large enough to ensure the water supply to the pump.

Note:
Use filtering tubes to detain coarse soiling.

CAUTION
Risk arising from improper bore.

Have an expert drill the bore.

Preparing the Appliance

KARCHER-BP-4-Deep-Well-Submersible-Pressure-Pump-FIG-2

CAUTION
Risk of injury or damage due to toppling appliance.
Prior to every operation, place the appliance on a level surface and secure it against rolling away.

Attach the switch cabinet to a suitable wall using screws.
Attach the fastening rope on both eyelets so that the pump hangs straight.

Connect garden hose or lifting tube:

When using a garden hose, screw the connection adapter into the connection piece. Additional sealing is not required.
Screw a fitting hose connection piece onto the connection adapter.
Attach the hose end to the hose connection piece and secure it by means of a hose clamp. Tighten the hose clamp using a ratchet (approx. 5 Nm).
Lower the pump on the fastening rope into the fluid to be delivered. In order to prevent soiling in the intake area, set the pump down on the ground and then pull it up at least 50 cm. The spacer foot protects the pump against sinking in and soiling.
Secure the fastening rope.

The maximum immersion depth (h1) describes the depth of the water in which the pump can still be installed. Usually it is not necessary to lower the pump to the maximum immersion depth. The delivery height (h2) describes the height difference between the water level and the water outlet at the end of the delivery hose. The maximum delivery height must be observed so that the pump can deliver. This must be observed over the entire pathway of the pump, as the delivery height will increase with the falling water level (due to pumping).

Operation

The fluid level must be at least 18 cm above the pump base for the pump to draw independently.

Insert the mains plug into the socket.
Set the On/Off switch at the switch cabinet to “I”.
CAUTION
Dry running damages the pump.
Do not leave the pump unattended during operation.
Alternatively use a dry run protection or an electronic pressure switch with dry run protection (see optional accessories).

Finish operation

Set the On/Off switch at the switch cabinet to “0”.
Disconnect the main plug from the socket.

Cleaning

DANGER
Risk of electric shock. Turn off the appliance and remove the mains plug prior to performing any care and maintenance work.

Note:
Soiling can deposit and lead to malfunctions.
Rinse the pump with clear water at regular intervals.

Set the On/Off switch at the switch cabinet to “0”.
Disconnect the main plug from the socket.
Clean the intake grille using a suitable brush and rinse with clear water.
Unscrew the connection adapter from the connection piece.
Remove the check valve.
Screw the connection adapter into the connection piece.
Connect the garden hose to the pipe system and the pump adapter.
Rinse pump with clear water.
Install the non-return valve.
Ensure correct positioning of the check valve. The labelling “Up” must point upwards.

Maintenance

The appliance is maintenance-free.

Transport

CAUTION
In order to prevent accidents or injuries, mind the weight of the appliance during transport.

When transporting in vehicles

Secure the appliance against shifting and tipping over.

Storage

CAUTION
In order to prevent accidents or injuries, mind the weight of the appliance when selecting a storage location.

Store the appliance in a horizontal position and secure it against rolling away.
ATTENTION
If the appliance is not drained completely, it can be destroyed by frost.
Fully drain the appliance prior to storing it.
Store the appliance in a frost-free area.

Special accessories

The figures of the following special accessories can be found on page 4 of these instructions.

2.645-148.0| Hose PrimoFlex plus 3/4″ – 25m| Phtalate-free 3/4″ garden hose for connecting the submersible pres- sure pump with the application equipment.

Also available in other lengths and qualities.

---|---|---
6.997-359.0| Pump connection piece incl. check valve, small| Vacuum-resistant connection of the hoses to the pump. For pumps with G1 (33.3 mm) connection thread and 3/4″ and 1″ hoses, includ- ing union nut, hose clamp, flat packing and check valve.
6.997-473.0| Connection adapter for pumps G1| To connect pumps to the interior thread of water connections.
6.997-355.0| Dry run fuse| If no more water flows through the pump, the dry run fuse will protect the pump from damage and automatically turn it off. With G1“ (33.3 mm) threaded connection.
6.997-357.0| Electronic pressure switch with dry run fuse| Perfect for converting a submersible pressure pump into a domestic water supply system. With water demand, the pump switches on and off automatically. If no water flows through the pump, the dry run protection protects the pump against damage and automatically switches it off. With G1 (33.3 mm) connection thread.

Troubleshooting

DANGER
To avoid risks, all repairs and replacement of spare parts may only be carried out by authorized customer service personnel.
First pull out the plug from the mains before carrying out any tasks on the machine.

Fault	Cause	Remedy
Pump runs but does not transport	Air in the pump	Switch the pump on and off

several times until fluid is drawn.
Suction area blocked| Switch off the pump, pull the mains plug and clean the intake area.
Water level below minimum water level| Immerse the pump deeper into the liquid, if possible.
Pump does not run or sud- denly comes to a standstill during operations| Power supply interrupted| Check fuses and electrical connections
Thermal protection switch in the motor has switched off the pump as it was overheated.| Switch off the pump, pull the mains plug, allow the pump to cool down, clean intake area, prevent dry running.
Dirt particles have got jammed into the suction area| Switch off the pump, pull the mains plug and clean the intake area.
Fuse at the switch cabinet has tripped.| Switch off the pump, pull the mains plug, clean the pump and flush if necessary, operate the safety switch.
Pumping capacity is reducing| Suction area blocked| Switch off the pump, pull the mains plug and clean the intake area.
Pumping capacity too low| The pumping capacity depends on the flow height, hose diameter and hose length.| Keep max. flow height, see technical data. If neces- sary, select a different hose diameter or hose length.
Spacer foot defective| Mechanical effect on the spacer foot (fall).| Unscrew the defective spacer foot using a hexagon key (SW6) and replace it (spare part).

Specifications

		BP 4	BP 6
Voltage	V	230	230
Current type	Hz	50	50
Output Pnom	W	700	1000
Max. flow rate	l/h	4600	5000
Max. pressure	bar	4,3	5,5
Max. flow height	m	43	55
Max. immersion depth	m	12	27
Max. grain size of the dirt particles that can be transported	mm	0,9	0,9
Max. solid content in the water	kg/m3	1,0	1,0