Marco 164 404 15 Instructions For Use Manual page 15

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.
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.
Ø
Prior to making any tube/hose connections, check that the inlet ports have no end
caps;
Ø
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;
Ø
Avoid choking the inlet or outlet tubes so that efficiency is optimized.
Ø
The use of an inlet filter is recommended especially with fluids containing impurities
(mesh ASTM no. 35).
advisable. The standard filter withstands a maximum positive pressure of 0.5 bar.
Ø
Utilize tubes and connection pieces that are resistant to the fluid types handled and
avoid any possible environmental dispersion.
WARNING: DUE TO THE EMI FILTER THE PUMP IS NOT SUITABLE FOR
SWITCHING APPLICATIONS
The electrical installation of the pump must include a protection fuse which is suitably rated
as indicated on the motor label.
WARRANTY EXPIRES IF NO FUSE IS UTILIZED
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.
In this case frequent cleaning and maintenance of the filter is
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© S.p.A.
ENG