Application
Technical Features
Safety
General Safety Norms
Description
Placement
Electrical Connection
Start Up
Pool Pump Maintenance
Winter Storage
Malfunctioning
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SP 750 Pool Pump Installation Manual

Application:

SP-750 pumps for pools can only be used with a filtering unit to circulate water in pools. The manufacturer is not responsible if the pumps are used for purposes other than those indicated above without explicit authorization. The pump has been designed to take water from the pool and return it cleaned, after it has passed through a filter.

Technical Features:

Safety:

Keep this manual in a safe and dry place near the pump, for easy reference and future consultation.  This manual contains basic instructions that must be observed during assembly, running and maintenance.  Therefore, it must be carefully read before installation and start up.

General Safety Norms:

Disconnect the pump from the electrical outlet before carrying out any operation.
The safety of the machine is guaranteed only if it is used in compliance with the instructions in this manual.  The limits indicated must never be exceeded in any given situation.  Avoid depositing the pump for prolonged periods of time in areas with high humidity and variable temperatures.  Humidity and condensation can damage the components.

Description:

The SP-750 pump has been designed to work together with a filtering unit to make water circulate in pools.  All the parts in contact with liquids are made of plastic and are extremely resistant to the corrosion caused by pool water and the main chemical products for water treatment.

Placement:

Place the pump at least 3.5 m from the edge of the pool.  If the pump is placed outside the pool it is advisable to put a simple cover to protect it from rain.  This protection will make the pump last longer.
If the pump is installed in a humid environment there must be adequate aerification and ventilation to avoid condensation.  In the case of very small environments, aerification and ventilation are necessary to avoid a room temperature that is too high.
Make sure the pump is placed in an area in which the normal running noise does not disturb.
Place the pump in an area that is easily accessible for maintenance.
The pump must be installed in a horizontal position.
It can be placed 3 m (primed by gravity) under the water level up to the water level (self-priming).  Never exceed the limits indicated.
The self-priming capacity can be considerable reduced by obstacles caused by pipes, for example pipes which are too long or insufficiently sized.
Make sure that the piping does not leak; otherwise the pump will not be primed completely or at all. 

1 - Hose Holder 2 - Transparent Cover 3 - Transparent Cover OR Gasket 4 - Pre-filter 5 - Frame 6 - Pre-filter OR Gasket 7 - Motor Body 8 - Fan Protector Grid 9 - Fan 10 - Pre-filter screws (4) 11 - Protection Grid Screws (2)

The transparent cover of the pre-filter (2) must be tightly closed, the hose holder (1) must be completely fastened and the inlet piping must be as short as possible; this will reduce the time needed for the priming which depends on the quantity of air in the inlet piping.  If the piping is too long the priming time can be very long.  The inlet piping should be placed below the water level.
Carefully follow the indications reported in “START UP” for the priming procedure.
If the piping is installed above the water level it is advisable to use a gate valve at the inlet so that the piping does not empty while the pump is off.  This will help to contain the priming time when the pump is started up again, for example, after cleaning the frame.

Electrical Connection:

The pump is outfitted with a 5 m waterproof cable and a Shuko three pole plug.  Do not alter this configuration without authorization from a specialized technician.
Use a proper reduction unit to connect the plug to the electrical supply if necessary.
In case of breakage contact a qualified technician for replacement:  never replace the cable yourself!

Start Up:

Completely fasten the two outfitted hose holders that have two diameters (1) in correspondence with the IN and OUT connectors.  If this operation should be difficult use a monkey wrench.
Connect the inlet piping (from the pool to the pump) to the IN opening (Fig. 2) and the outlet piping (from the pump to the filter) to the OUT opening (Fig. 3).  Fasten the pipes with STAINLESS clamps.
In case of leaks at the level of the connection between pipe and pump wrap some Teflon around the hose holder (1).
Tightly fasten the transparent cover of the pre filter (2) making sure that the OR gasket (3) is intact and correctly positioned in the proper housing.
To prime the pump correctly, follow the instructions on Fig.1
Slowly fill the pump with clean water in the inlet pipe, making sure that the outlet pipe also fills up (Fig. 1).
Only when all the circuit is full of water, connect the plug to the electrical supply.  The pump will empty the residual air in the circuit and start to work.
Attention

• The pump must never run when empty.
• Never use the pump without the pre filter frame (5), otherwise the pump could be blocked and be irreparably damaged.
• If using any kind of closing valve, make sure that all the line is completely open because the pump must never run with any valve closed

Maintenance:

The pre filter frame (5) must periodically be emptied and cleaned.  A dirty or blocked frame will reduce the performance of the pump.
Cleaning the frame

• Turn off the pump and disconnect the plug.
• Close any used valves.
• Unscrew the transparent cover (2) of the pre filter (4).
• Remove the frame (5), empty it and carefully clean it.
• Insert the frame again (5) inside the pre filter (4).
• Tightly faster the transparent cover (2) of the pre filter making sure that the OR gasket (3) is intact and correctly positioned in its proper housing.
• Open any used valves.
• Start the pump.

Attention

• Whenever the pump should turn off due to an intervention of the thermic safety protector, disconnect the pump from the electrical supply and check that the rotation of the impeller is correct (Fig. 4).  If the operation requires considerable force the pump must be checked by a technician.  If the motor shaft  turns easily, connect the pump again: when the motor cools down, the pump will begin to run again .  If the intervention of the thermic protector should be repeated constantly, the pump must be check by a technician and, if necessary, the domestic electrical supply should be checked.
• If the pump is blocked, it must be cleaned.  Repeated attempts at starting a blocked pump may cause irreparable damage.  In this case the warranty is no longer valid.
• All extra maintenance work (replacement of mechanical gaskets, replacement of rotor, etc) must be carried out be a qualified technician.

Winter Storage:

If there is the risk of freezing temperatures, the pump must be carefully emptied beforehand of all liquid in the circuit.  It is advisable to empty all the piping.
After a long period of inactivity, check that the motor shaft turns in the correct way (Fig. 4).
If the fan turns with difficulty, a qualified technician must be consulted.

Malfunctioning:

The insulation between the pump and motor body is a mechanical gasket.  It is normal for a few drops of water to flow every once in a while, especially after long periods of disuse.