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Operating Instructions
Low-Voltage Pressurized Water Pump 12 V, 258 l/h
Item No. 2386385
Intended use
The product is a professional self-priming 2-chamber diaphram pump. It has an automomatic pressure
switch that will automatically start/stop the pump when a tap or valve is opened/closed. Only for use with
fresh water or salt water.
Some applications include:
•
Yacht, caravan pressurized water systems
•
Sprayer fixtures (vehicle mounted, electric)
•
Cleaning machines, humumidifier, water purification
•
Solar water systems
NOTE
•
The product is not suitable for outdoor use.
•
The product is not submersible.
•
The product has an ingress protection rating of IPX5. It can resist a sustained, low-pressure water
jet spray.
•
Please read the included safety instructions.
For safety and approval purposes, you must not rebuild and/or modify this product. If you use the product
for purposes other than those described above, the product may be damaged. In addition, improper use can
result in short circuits, fires, or other hazards. Read the instructions carefully and store them in a safe place.
Make this product available to third parties only together with its operating instructions.
This product complies with the statutory national and European requirements. All company names and prod-
uct names are trademarks of their respective owners. All rights reserved.
Delivery contents
•
Pump
•
3x fittings
Up-to-date operating instructions
Download the latest operating instructions at www.conrad.com/downloads or scan the
QR code shown. Follow the instructions on the website.
Explanation of symbols
The symbol with the exclamation mark in
the triangle is used to indicate important
information in these operating instruc-
tions. Always read this information care-
fully.
This product is constructed according to
protection class III.
Not for use where flammable vapours
are present.
The arrow symbol indicates special in-
formation and advice on operation.
Safety instructions
Read the operating instructions
carefully and especially observe
the safety information. If you do not
follow the safety instructions and
information on proper handling in
this manual, we assume no liability
for any resulting personal injury or
damage to property. Such cases will
invalidate the warranty/guarantee.
a) General information
•
The device is not a toy. Keep it out of the reach
of children and pets.
•
Do not leave packaging material lying around
carelessly. This may become dangerous playing
material for children.
•
Protect the appliance from extreme tempera-
tures, strong jolts, flammable gases, steam and
solvents.
•
Filter
•
Operating instructions
•
Do not place the product under any mechanical
stress.
•
If it is no longer possible to operate the product
safely, take it out of operation and protect it from
any accidental use. Safe operation can no longer
be guaranteed if the product:
- is visibly damaged,
- is no longer working properly,
- has been stored for extended periods in poor
ambient conditions or
- has been subjected to any serious transport-
related stresses.
•
Please handle the product carefully. Jolts, im-
pacts or a fall even from a low height can dam-
age the product.
•
Consult an expert when in doubt about the op-
eration, safety or connection of the appliance.
•
Maintenance, modifications and repairs must
only be completed by a technician or an author-
ised repair centre.
•
If you have questions which remain unanswered
by these operating instructions, contact our tech-
nical support service or other technical person-
nel.
b) Connected devices
•
Also observe the safety and operating instruc-
tions of any other devices which are connected
to the product.
c) Product
WARNING!
•
Do not use the pump for petrol/gasonline, petro-
leum products, solvents, thinners or ANY other
flammable liquid.
•
Not for use where flammable vapours are pre-
sent.
Installation
NOTE
•
Observe the direction of flow (arrow marking on the underside) indicating the outlet port.
•
Do not adjust the bypass or pressure switch without professional assistance.
•
Always disconnect the power supply when installing or servicing electrical parts.
a) Materials
Some of the following items may be
required for installation but are not in-
cluded.
•
2x (at least) pieces of flexible, reinforced hose
piping, with collapsing strength of twice the inlet
port collapsing pressure. Hose must be minimum
10 mm (3/8") inner diameter.
•
4x stainless steel hose clamps and screws.
•
4x screws to fasten the pump to the mounting
surface.
•
1x electrical cutoff switch.
•
1x fuse
•
1x screwdriver
•
1x strong cutting implement for tubing
•
Teflon tape or sealant
b) Installation notes
•
The pump can be mounted in any position.
If mounted vertically, the pump head should be
pointing down to avoid leakage into the motor
casing if there is a malfunction.
•
Secure the feet, but do not compress them.
Overtightening the securing screws may reduce
their ability to dissipate noise and vibration.
•
Inlet hose must be minimum ø10 mm (inner) re-
inforced hose. Main distribution line from pump
outlet should also be ø10 mm (inner) with branch
and individual supply lines to outlets no smaller
than ø10 mm (inner).
•
Plumb the system using high pressure (2x pump
rating), braided, flexible tubing to minimize vibra-
tion/ noise.
•
Do not apply inlet pressure >2 bar. It is recom-
mended to avoid inlet pressure.
•
Avoid kinks or fittings which can cause excessive
restrictions.
•
The filter should be attached to the inlet side.
•
The fittings must be secured to avoid leakage.
Pressure switch adjustment
NOTE
•
Consult a professional technician if the pressure switch need to be adjusted.
•
Improper adjustment may damage the pump.
•
The factory default settings are configured for optimal operation of the pump.
•
If an application requires different settings:
- Rotate screw clockwise: increase pressure
- Rotate screw counter-clockwise: decrease pressure.
If the switch pressure is set is too high, it will effectively be deactivated. If the pressure is too low
relative to the cut-off pressure of the pressure switch, it will not allow the pump to turn off.
Maintenance and storage
•
Regularly inspect electrical wiring and connections.
•
Do not use any aggressive cleaning agents, rubbing alcohol or other chemical solutions as they can
cause damage to the housing and malfunctioning.
•
Before storage, especially before or cold weather (winter), it is important to prepare the pump:
- Disconnect, drain, and store the pump where it will not freeze.
- Open all the ports to allow air into the pump so the water can drain out.
•
Use clamps at both ends of hose to prevent air
leaks into the water line.
•
If a check valve is installed in the plumbing, it
must have a cracking pressure ≤0.14 bar.
•
Wire the pump on its own dedicated circuit.
- Red wire (+) connect to battery (+).
- Black wire (-) connect to battery (-).
•
Install in an easy to access location with a switch
to control electricity to the pump.
•
Switch the pump off when not used for extended
periods or when the tank is empty.
•
The electrical circuit should be protected with an
over-current protection device (e.g. fuse) along
the positive lead.
•
The pump circuit should not include any other
electrical loads.
•
Use the correct wire size for the length required.
See "c) Wiring information".
•
After installation, check the voltage is correct:
- Check voltage at the motor.
- Voltage should be checked when the pump is
operating.
- Full voltage must be available at the pump
motor at all times
•
If using rigid piping, attach a short length of hose
between the pipe and the pump to avoid noise
and vibration.
•
It is not recommended to use metal fittings. Use
the provided plastic fittings if possible.
c) Wiring information
Observe the recommended lengths to wire size.
Length (meters)
Ø mm
(AWG)
2
0 - 15
1.50 (16)
15 - 19
2.50 (14)
19 - 30
4.00 (12)
100 - 130
5.50 (10)
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