Marco M164-681-13 User manual

30/07/19 Rev.00
© S.p.A.
INSTRUCTIONS FOR USE
SELF-PRIMING ELECTRIC PUMP
FOR TRANSFERRING VARIOUS LIQUIDS
164 681 13-US - UP12/E 24V

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AIR VENT VALVE ACTIVATION
When starting the pump, or when emptying the tank, slightly open the small valve
in order to let the air out and facilitate the priming.
As soon as the pump is operating close the small valve.
ELECTRONIC PRESSURE SENSOR
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ELECTRONIC PRESSURE SENSOR WORKING DIRECTIONS
The electronic pressure sensor, through the use of a microprocessor, controls the pump's speed to
obtain the needed flow rate, with the following advantages:
- Noise reduction during operation
- The optimization of current consumption
- A strong reduction of electrical noise, thanks to the slow speed ramp up and ramp down of
the motor.
- A longer life for the whole system, thanks to less wear of pump parts compared to
conventional mechanical pressure switches.
The pressure sensor system is equipped with two LEDs: one blue and one multicolored (red, green,
and yellow).
During normal operation, the blue LED will:
- Turn on if there's liquid in the hoses.
- Turn off when there's no liquid in the hoses.
- Flash when in priming mode. The first time it senses water it keeps flashing for 10 seconds to
make sure that the water is being pumped correctly and continuously.
If the pump goes more than five times from “priming” to “no liquid” (blue led off) the circuit
turns everything off anyway, to protect the motor and the gears from running without liquid.
The multicolored LED signals:
- With solid yellow LED, that the pressure in the hoses is not the required pressure, but the
pump is trying to reach it.
- With solid green LED, that the pump has reached the target pressure, there is still liquid
demand, but the pump's speed won't be changed because the flow rate is constant.
- With flashing green LED, the pump has reached the target pressure and there is no liquid
demand, it's in stand-by with the motor off.
- With solid or slowly flashing red LED, the motor has been short circuited, something may
have blocked the gears or there could be a problem in the connection between the pump
and circuit. The red LED flashes for 30 seconds, after which the pump is re-fed up to a
maximum of 3 attempts.
On the fourth attempt, the LED remains solid red, the pump is off and should be checked for
possible permanent damage.
To reset this warning you need to reboot the circuit or press the Reset button on the control
panel, if present.
(follows)
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- With fast flashing red LED, the pump is being overloaded (due to viscous liquids or gears
overheating). While the pump is running, the speed is reduced to keep the current up to the
nominal value for 30 seconds, period after which the circuit tries to release again the motor
to its normal operating speed.
If an overload happens again, the circuit tries three time to lower the speed and it turns the
pump off. Please check that the liquid being pumped is correct for the chosen pump and that
the gears move freely without problems.
To reset this warning you have to reboot the circuit or press the Reset button on the control
panel, if present.
There are two warnings that use both LEDs:
- Red and blue LED that blink alternatively, signal that the pump has run one and a half minute
without liquid and the motor has been stopped for this reason. To reset this warning you have
to reboot the circuit or press the Reset button on the control panel, if present.
- Yellow and blue LED that blink together indicate that the power supply is providing the wrong
voltage. Please check to have the correct wire section for the power supply and a charged
battery, if present.
- Steady red and blinking Blue indicate that the pump has run for more than two hours at very
low speeds and that the motor has been stopped to prevent overheating. To reset this
warning you have to reboot the circuit or press the Reset button on the control panel, if
present.
An expansion tank of at least ½ liter is necessary in the case of short, rigid pipes or in the presence of
solenoid valves, to avoid overpressures during the closing phase caused by a water hammer effect
which could damage the pressure sensor.
The presence of a few meters of flexible pipe inside the system can prevent the installation of the
expansion tank.
Additional pressure regulators or non-return valves on the pump delivery may interfere with the
correct operation of the electronic pressure sensor.
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PRODUCT DESCRIPTION
TECHNICAL DETAILS
APPLICATIONS
FLUIDS ALLOWED / NOT ALLOWED
Ø
camper
ØWater pressure systems
ØTransfer of light weight lube oils, antifreeze
There are numerous fields of applications for the pump, however only exclusively with the
allowed liquids mentioned:
Main use as automatic pump for freshwater and sanitary water systems on boats,
Self-priming gear pump, integrated check valve and electronic pressure sensor: to be used
as automatic pump. Nickel-plated brass body, PTFE gears, stainless-steel shaft and lip seal.
The electronic pressure sensor is preset at 50.8 psi.
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Tab.1 EN
CODE TYPE VOLT
AWG 1250.8 lb 9.7164 681 13-US 24V 15
IP 67 Protection
(*) Internal tube 0.6 in / (**) Length up to 6.6 ft
AUP12/E gpm 9.5 psi
FUSE WIRE SIZE (**)WEIGHTPRESSUREFLOW RATE (*)
Tab.2 EN
WA TE R (max 40 °C -1 04 °F)
PE TROL (GASOLINE ) •
FLAMMA BLE LIQU IDS with PM < 38 °C -100 °F •
LIQU IDS W ITH VISC OSITY > 2 0 cSt •
CORROSIVE C H EMICA L P RODU C TS • •
SOLVE NTS • •
ISO 884 6 C omplia nt Device
INJURY TO
PERSONNEL
DAMAGE TO SEALS
OK
NO
LIQ U ID S D AN GERS
W ARRANTY EXPIRES IF M AX FLU ID
TE MPERATU RE IS EXCEEDED
FIRE / EXPLOSION
MOTOR
OVERHEATING
PUMP CORROSION

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TRANSPORTATION AND HANDLING
INSTALLATION
PRELIMINARY CHECKS
POSITIONING
AMBIENT CONDITIONS
TEMPERATURE: RELATIVE HUMIDITY:min.-10°C 14°F-max.60°C 140°F max. 90 %
OPERATING CYCLE
Due to limited weight and dimensions the pump does not require the use of any special
handling or lifting equipment. When handling manually, normal personal protective gear
should be worn (safety shoes with toe piece, etc.). The pump is carefully packed prior to
shipment. Upon receiving, the packaging should be inspected for damages and the pump
stored in a dry area.
It is recommended that the use of the pump be according to normative safety standards
and also as per the precautions listed below.
The pump can be mounted in any position. Fix the pump utilizing suitable diameter screws
corresponding to the holes.
Check that there has been no damage to the pump during transportation or storage. Both
inlet and outlet ports should be carefully cleaned removing possible dust or residual
packaging material. Verify that the available electrical power supply corresponds to the
specification requirements.
The pump can operate on a continuous cycle with the following conditions:
It is possible to operate at higher pressures/ampere draw if On/Off cycles are used. This will
allow the motor to cool down to the indicated temperatures.
Long pipelines and / or reduced diameters, bottlenecks and dispensing guns, affect the
operating pressure (which is not automatically limited): in these cases, check that the
pressure and the electrical draw do not exceed the values of the attached diagrams.
Ø
Ø
pressures not exceeding 50% of the maximum pressure indicated in the technical
data
temperature of the motor below 60/70 °C - 140/158 °F
WARNING: the above indicated temperature ranges are applicable to all components
of the pump and these limits must be respected in order to avoid any possible damage
or malfunctioning.
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TRANSPORTATION AND HANDLING
INSTALLATION
PRELIMINARY CHECKS
POSITIONING
AMBIENT CONDITIONS
TEMPERATURE: RELATIVE HUMIDITY:min.-10°C 14°F-max.60°C 140°F max. 90 %
OPERATING CYCLE
Under conditions of high operating pressures the pump can be subjected to elevated
stresses and overheating and therefore should not be used for prolonged periods under such
conditions.
Due to limited weight and dimensions the pump does not require the use of any special
handling or lifting equipment. When handling manually, normal personal protective gear
should be worn (safety shoes with toe piece, etc.). The pump is carefully packed prior to
shipment. Upon receiving, the packaging should be inspected for damages and the pump
stored in a dry area.
It is recommended that the use of the pump be according to normative safety standards
and also as per the precautions listed below.
The pump can be mounted in any position. Fix the pump utilizing suitable diameter screws
corresponding to the holes.
Check that there has been no damage to the pump during transportation or storage. Both
inlet and outlet ports should be carefully cleaned removing possible dust or residual
packaging material. Verify that the available electrical power supply corresponds to the
specification requirements.
WARNING: the above indicated temperature ranges are applicable to all components
of the pump and these limits must be respected in order to avoid any possible damage
or malfunctioning.
7

© S.p.A.
TRANSPORTATION AND HANDLING
INSTALLATION
PRELIMINARY CHECKS
POSITIONING
AMBIENT CONDITIONS
TEMPERATURE: RELATIVE HUMIDITY:min.-10°C 14°F-max.60°C 140°F max. 90 %
OPERATING CYCLE
Due to limited weight and dimensions the pump does not require the use of any special
handling or lifting equipment. When handling manually, normal personal protective gear
should be worn (safety shoes with toe piece, etc.). The pump is carefully packed prior to
shipment. Upon receiving, the packaging should be inspected for damages and the pump
stored in a dry area.
It is recommended that the use of the pump be according to normative safety standards
and also as per the precautions listed below.
The pump can be mounted in any position. Fix the pump utilizing suitable diameter screws
corresponding to the holes.
Check that there has been no damage to the pump during transportation or storage. Both
inlet and outlet ports should be carefully cleaned removing possible dust or residual
packaging material. Verify that the available electrical power supply corresponds to the
specification requirements.
WARNING: the above indicated temperature ranges are applicable to all components
of the pump and these limits must be respected in order to avoid any possible damage
or malfunctioning.
The pump can operate on a continuous cycle with the following conditions:
Ø
Ø
Viscosity not exceeding 350 cSt, free flow rate, connections of minimum
Temperature of the motor below 60/70 °C - 140/158 °F
It is possible to operate at higher viscosity/ampere draw if On/Off cycles are used. This will
allow the motor to cool down to the indicated temperatures.
Long pipelines and/or reduced diameters, bottlenecks and dispensing guns affect the
operating pressure (which is not automatically limited): in this cases, check that the
temperature and the electrical draw do not exceed the values of the attached diagrams.
Ø12 mm
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To ensure the correct directional flow of the fluid as indicated by the arrow on the top plate, it is
necessary to connect the positive pole (+) of the battery supply to the red wire on the motor
end-cap and the negative pole (-) to the black wire. Electrical connections must be made
using adequate terminal blocks and connectors ensuring a tight fitment of the electrical
cables. Bad wiring can cause power losses and/or overheating of the cabling itself.
Ø
Ø
Ø
Prior to making any tube/hose connections, check that the inlet ports have no end
caps;
Do not position the pump at a excessive height with respect to the minimum level of
the fluid to be transferred. Damage may occur if this height is exceeded as the pump
may not draw fluid. Make sure that the outlet tube is empty and without chokes;
Avoid choking the inlet or outlet tubes so that efficiency is optimized.
The use of an inlet filter is recommended especially with fluids containing impurities
(mesh ASTM no. 35).
Utilize tubes and connection pieces that are resistant to the fluid types handled and
avoid any possible environmental dispersion.
Ø
Ø
In this case frequent cleaning and maintenance of the filter is
advisable. The standard filter withstands a maximum positive pressure of 0.5 bar.
The electrical installation of the pump must include a protection fuse which is suitably rated
as indicated on the motor label.
Always mount the anti vibration rubber fittings supplied with the pump kit. Their usage
ensures a consistent reduction in noise and vibration levels. Electrical cabling size should
depend on the distance between pump and battery/power supply (see Tab.1 EN). The use of
undersized cabling can cause overheating of the electrical wiring and subsequent fire
hazard. There will also be a voltage drop at the motor terminals with a consequent reduction
in efficiency. The flow rate value indicated on the motor label is obtained with internal tube
diameter indicated on Tab.1 EN. Tubes with inferior diameters will cause an increase in
current with potential risk of motor overheating.
WARRANTY EXPIRES IF NO FUSE IS UTILIZED
WARNING: it is the responsibility of the installation technician to ensure a correctly
designed circuit installation fitted according to regulations. Environmental risks must
be taken into account with the installation.
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TROUBLESHOOTING
WHY THE PUMP WILL NOT PRIME ITSELF?
CHECK POINTS IF THE PUMP HAS STOPPED OR WILL NOT START
GOOD PRACTICES ENSURING A WELL FUNCTIONING PUMP
Ø
Ø
Ø
Ø
Ø
Check the effectiveness of the battery power supply (voltage activity);
Check if the fuse has blown;
Check for any foreign matter present in the pump body. To do this, disconnect the
power supply and unscrew the four fixing screws, remove the front cover plate and
inspect the chamber. Replace the cover plate in the same initial position after
inspection;
Avoid running the pump dry for more than a few minutes. Pumps found defective
that have run dry in the absence of fluid are not covered by warranty;
The average life span of the motor commutator brushes is approximately 2500
hours under normal operating conditions. Stoppages are possible due to brush
wear and tear after such a time period.
Ø
Ø
Ø
Ø
Ø
Ø
Ø
Ø
The pump is fitted at an excessive height above the fluid level
The pump has run dry for too long a period
Long periods of inactivity. In this case it is advisable to add liquid directly into the
chamber before start-up
Air leak at the suction pipe due to the following reasons, possible cuts in the pipe,
inadequate hose clamps, malfunctioning of the filter due to defective/worn seals or
filter clogged
Air leak at the front plate cover due to the following reasons, loose fixing screws,
poor effectiveness of the seal
Faulty electrical cable connections
Presence of obstructions or restrictions in the suction or delivery pipes or the use of
special devices (eg. automatic spray pistol or Aquastop)
Presence of liquid loops in the outlet tube
ØDirty bypass valve (VP45 series)
If it is expected that the pump will not be used for a period of at least 30 days, especially in the
case of usage with water, it is advisable to run fresh water through it and to then loosen the
front plate screws. Upon re-use, run the pump briefly (a few seconds) and tighten the screws
again. Check under conditions of maximum operating pressure that the motor current value
is within the motor label specifications.
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NORMAL MAINTENANCE
INDICATORS THAT THE PUMP IS FUNCTIONING CORRECTLY
TO OPEN THE PUMP
ENVIRONMENTAL DISPOSAL
WARRANTY
PACKAGING ENVIRONMENTAL DISPOSAL
Ø
Ø
Ø
Check frequently and keep the inlet filter clean.
Check every month the chamber and keep clean from any foreign matter.
Check every month that electrical wiring is in good condition.
ØReplace the rubber impeller every season or every 500 hours (for UP1 series).
Ø
Ø
Ø
Temperature of body and motor frame is within 60°C and 70°C (140 °F - 158 °F);
Regular flow and constant noise levels;
Amp-draw within the limits indicated in the diagrams.
ØIt is recommended that a specialized service technician be consulted for any
repair work or the replacement of worn out internal components, exclusively with
original spare parts; during the warranty period, only by authorized Marco S.p.A.
personnel, failing which the warranty will expire.
It is the responsibility of the owner to dispose of this product by means of the specific refuse
collection structures indicated by the government or the local governing authorities.
The user is invited to effect a proper waste separation, in order to facilitate the recycling
of the materials of which the packing is composed.
1) The Warranty period is 2 years from date of purchase on production of the
appropriate sales invoice.
2) Should the original sales invoice not be available, then the 2 year warranty
period will be valid from production date.
3) The Warranty becomes null and void in the case of incorrect utilization or
disregard of the instructions contained herein.
4) The Warranty only covers original production defects.
5) The Warranty does not cover any related installation costs involved.
6) Transport costs are refundable only in the case where warranty has been duly
accepted by Marco Spa and they will be limited to the actual shipment costs
between Marco Spa warehouse and the client's delivery address.
7) No credit notes or replacement items will be issued prior to the receipt and
proper testing of any Marco goods that are deemed faulty.
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EXPLODED VIEW
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DIMENSIONS
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DIAGRAMS
FLOW RATE DIAGRAM
AMPERE-DRAW DIAGRAM
14
0
5
10
15
0,0 14,5 29,0 43,5 58,0
psi
gpm
0
5
10
15
20
0,0 14,5 29,0 43,5 58,0
psi
A

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EN 55014-1 Electromagnetic compatibility.
Requirements for household appliances,
electric tools, and similar apparatus.
Part 1: Emission.
This declaration is given under the sole responsibility of:
MARCO S.P.A.
Via Mameli 10 - 2501 Cas enedolo - Brescia - Italy 4 t
Tel. [phone] Fax [phone]
EN 55014-2 Electromagnetic compatibility.
Requirements for household appliances,
electric tools, and similar apparatus.
Part 2: Immunity.
This declaration is valid for all products which are produced in accordance with the technical documentation which
is a part of this declaration. For verification of conformity with regard to the Electromagnetic Compatibility the
following standards are applied:
We confirm that the product:
E.C. DECLARATION OF CONFORMITY
is in conformity with the Directive 2014/30/EU (ex. 2004/108/EC) relating to electromagnetic compatibility and
with the Directive 2006/42/EC relating to the machines.
164 681 13-US - UP12/E 24V Electronic gear pump
15

Property of MARCO S.p.A reproduction prohibited. All rights reserved.
For further information visit our web site - www.marco.it
Marco S.p.A Via Mameli 10 - 25014 Castenedolo (Brescia) – Italy
tel. [phone] / Fax [phone]