Astral Pool 25462 Manual

GENERAL INSTALLATION AND MAINTENANCE MANUAL
ORIGINAL
INSTRUCTIONS
SELF-PRIMING PUMP FOR POOLS

TABLE OF CONTENTS
IMPORTANT SAFETY, INSTALLATION AND MAINTENANCE INFORMATION.................. 3
1. GENERAL SAFETY WARNINGS.................................................................................... 5
2. INSTALLATION
2.1 SELECTING A LOCATION..................................................................................... 5
2.2 HYDRAULIC PIPING ........................................................................................... 7
2.3WIRING.............................................................................................................. 9
3. USE
3.1 OPERATING PRINCIPLE ..................................................................................... 11
3.2 OPERATION........................................................................................................ 11
4. MAINTENANCE............................................................................................................. 13
5. TROUBLESHOOTING ................................................................................................... 14
Recycling
This symbol is required by Directive 2012/19/EU of the European Parliament and of the Council on waste electrical and electronic equipment
(WEEE). It means that this appliance must not be disposed of in a normal rubbish bin. It must be taken to a selective waste collection facility
so that it can be reused, recycled or transformed and any substance that it contains that poses a potential hazard to the environment can be
removed or neutralized. Ask your dealer for any information about recycling processes.

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IMPORTANT SAFETY, INSTALLATION
AND MAINTENANCE INFORMATION
This instruction manual contains essential information on the safety
measures to be adopted during installation, maintenance and start-
up. Therefore, both the installer and the end user must read all of these
instructions very carefully before beginning the installation and start-up.
The manual can be downloaded in PDF format at:
www.astralpoolmanuals.com.
•
The appliance described in this manual is specially designed for the pre-ltering
and recirculation of water in swimming pools, with clean water at temperatures
that do not exceed 35 ºC.
•
This appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety. Children should
be supervised to ensure that they do not play with the appliance.
•
This appliance can be used by children aged from 8 years and above and
persons with reduced physical, sensory or mental capabilities or lack of ex
-
perience and knowledge if they have been given supervision or instruction
concerning use of the appliance in a safe way and understand the hazards
involved. Children must not play with this appliance. Cleaning and mainte
-
nance must not be carried out by children without supervision.
•
Our pumps may only be assembled and installed in pools compliant with
standards IEC/HD 60364-7-702 and required national rules. The installation
should follow standard IEC/HD 60364-7-702 and required national rules for
swimming pools. Consult your local dealer for more information.
•
If a self-priming pump is to be tted above the water level, the pressure
dierential to the pump suction pipe should not be higher than 0.015 MPa
(1.5 mH
O). Ensure that the suction pipe is as short as possible as a longer
pipe would increase suction time and the installation’s load losses.
•
The pump is intended to be used while fastened to a support or while
secured in a specic location in a horizontal position.

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•
Place a sump with an adequate outlet for the liquid where ooding is likely
to occur.
•
The pump cannot be installed in Zone 0 (Z0) or Zone 1 (Z1). To see drawings
refer to page 6.
•
See the maximum total head (H max), in meters on the back cover of the
manual specic to each range of pump.
•
The unit should be connected to an alternating current supply (see data on
the pump’s plate) with an earth connection, protected by a residual current
device (RCD) with a rated residual operating current that does not exceed
30 mA.
•A disconnector must be tted to the xed electrical installation in accor
-
dance to the installation regulations.
•
Failure to heed the warnings can cause serious damage to the pool’s equipment
or serious injury, including death.
•
Observe the regulations in force on accident prevention.
•
Before handling the unit, ensure that the power supply is switched o and
disconnected from the mains.
•
If the unit breaks down, do not try to repair it yourself. Contact a qualied
service engineer instead.
•All modications to the pump require the manufacturer’s prior authoriza
-
tion. Spare parts and original accessories authorized by the manufacturer
ensure greater safety. The pump’s manufacturer may not be held liable for
any damage caused by unauthorized spare parts or accessories.
•
Do not touch the fan or moving parts and do not place a rod or your ngers
near the moving parts while the device is running. Moving parts can cause
serious injury or even death.
•
Do not dry-run the pump or without water (the warranty will become null
and void).
•
Do not do any maintenance or repair work on the device with wet hands or
if the device is wet.
•
Do not submerge the device in water or mud.

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1. GENERAL SAFETY WARNINGS
These symbols ( ) mean that there is a potential hazard as a result of not heeding the
relevant warnings.
HAZARD. Risk of electrocution.
Disregarding this warning entails the risk of electrocution.
HAZARD.
Disregarding this warning entails the risk of harming people or damaging objects.
IMPORTANT.
Disregarding this warning entails the risk of damaging the pump or the installation.
2. INSTALLATION
2.1 SELECTING A LOCATION
The pump must be installed:
• Before the lter, heating system and/or water treatment unit.
• At a distance of 2 meters from the edge of the pool, to prevent water from splashing the unit. Some
standards allow other distances. Consult the standards in force in the country of installation.
• Ideally, 30 cm below the water level.
• Outside an area susceptible to ooding or on a stand with drainage.
• In a well ventilated place, to allow the pump to cool.
• There must be easy access for maintenance work on the device.
• It is recommended to leave space between the pump and the outer edges of the installation as
shown in the diagram (FIGURE 1).
• Place it on a stable, leveled and solid surface (e.g., concrete base).
• Fasten the pump to the ground using the anchoring stud so that it is suitably tted in place. (FIGURE 2).
0.1 m
0.5 m0.5 m
Anchoring points
(On each side of the pump)
FIGURE 1 FIGURE 2

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The pump must not be installed:
• In an area susceptible to rainfall and splashing.
• Near a heat source or source of inammable gas.
• In an area that cannot be cleaned or kept free of leaves, dry vegetation and other inammable items.
• In Zone 0 (Z0) and Zone 1 (Z1) (FIGURE 3).
Z1
2.5 m
2.5 m
1.5 m
2.0 m 2.0 m
1.5 m
Z0
Z0
Z0
Z1
2.0 m
2.0 m
2.5 m
2.5 m
2.0 m
1.5 m
1.5 m
Z1
Z0
Z0
Z1
2.0 m
2.0 m
Z0
Z0
r = 2,0 m
r = 2,0 m
r = 2,0 m
r = 2,0 m
r = 2,0 m
r = 2,0 m
FIGURE 3 - ZONES IN THE INSTALLATION

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2.2 HYDRAULIC PIPING
• Observe the direction of the hydraulic connections.
• Select the pipe size according to the size of the pool in line with the hydraulic standards in place in
the country of installation.
• For hydraulic connections, use the standard connections required.
• Fit a check valve if the lter is installed above the water level.
• Fit isolation valves (suction and discharge) if the pump is installed below the water level.
• To avoid problems with priming, install the suction pipe so that there are no high points where air
can build up.
• Check that the hydraulic connections are securely tightened and that there are no leaks.
• The piping should be well supported to avoid any risk of breakage due to the weight of the water.
D
C
B
A
HYDRAULIC FITTINGS
A B C D
Pump Filter Heating system Water treatment system
• Use as few elbow joints as possible. If there must be more than 10 elbow joints in the hydraulic
circuit, the diameter of the piping must be increased.

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L
Length of the suction pipe (L) = 4 x Ø
Suction pipe too short. Risk of cavitation
Air entrapment. Risk of the pre-filter not filling properly

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2.3 WIRING
• To avoid the terminal block from overheating (which could cause a re), check that the
terminals are securely fastened. Loose terminals will make the warranty null and void.
• Any unsuitable electrical connection will make the warranty null and void.
• The power cable must be insulated and protected against abrasion and damage.
• Turn the power o and install a ground connection before beginning work on the wiring.
1. Unscrew the screws to open the connection box. (FIGURE 4)
2. Disconnect and remove the factory test wires from the terminal block. (FIGURE 4)
FIGURE 4
3. Run the power cable through the gland seal nut and tighten it. (FIGURE 5)
FIGURE 5
- The type of power cable used must be sheathed in polychloroprene or an equivalent synthetic
elastomer and not be lighter than the cable’s heavy-duty polychloroprene sheath (designa-
tion code 60245 IEC 66). However, pumps with a rated power of 1 CV or lower may be tted
with a standard-duty polychloroprene sheathed cable (designation code 60245 IEC 57).

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4. Connect the wires as shown in the following diagrams (select as may be the case).
L1N
Blue
Yellow/Green
White
Black
L1
N
S
MCH
Single-phase - 230 VAC-50 Hz
W2
U1V1W1
Yellow/Green
R S T
U2
V2
R
M3
S
T
N
Three-phase - 400VAC-50Hz
V2
U1V1W1
Yellow/Green
R S T
W2
U2
R
M3
S
T
N
Three-phase - 230VAC-50Hz
V2
U1V1W1
Yellow/Green
R S T
W2
U2
R
M3
S
T
N
Three-phase - 400VAC-50Hz

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5. Close the connection box, check that the seal is in place and tighten the screws. (FIGURE 6)
FIGURE 6
• In three-phase pumps, a variable-frequency drive may be installed.
• If a variable-frequency drive is used, installing an output lter is recommended to obtain the right
supply voltage for the motor. This will lengthen the pump’s service life.
• Adjust the variable-frequency drive as per the motor’s rating plate. Adjusting overvoltages and
overloads is not permitted.
• The variable-frequency drive’s switching frequency must be set to values between 4–8 kHz. If out-
side of this range, the pump’s service life will be shortened.
• For three-phase pumps, a protection device must be tted (motor guard circuit breaker with mag-
netothermic protection) in the xed electrical installation.
3. USE
3.1 OPERATING PRINCIPLE
The lter pump is an essential, core component of any pool, as it is used to circulate the water through
all components, the lter in particular.
Its motor makes the turbine rotate, which pumps the water. The pre-lter basket collects the larger
pieces of debris to prevent the turbine from becoming blocked or damaged.
3.2 OPERATION
• To prevent any risk of explosion that could cause material damage, serious injury or even
death, ensure that the hydraulic circuit is free of obstructions, is not blocked and is not
under high pressure.
• The cover of the pre-lter basket may be closed manually or by using the tool supplied
with the pump.
• Check that the hydraulic connections are securely tightened.

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• Check that the pump is stable and leveled.
• The hydraulic circuit should be drained and not contain any foreign bodies.
• The lid of the pre-lter basket must be properly closed (manually) and its seal clean and
properly in place.
• Check that the valves are open.
• As the pump is self-priming, the pre-lter must be lled with water before starting it up
for the rst time in order to facilitate the process. (FIGURE 7).
PRIMING
FIGURE 7
• The pump has a priming capacity of up to 1.5 meters above the water level of the pool at
sea level (if the hydraulic circuit is properly sealed).
• Start the pump electrically.
• Bleed the air that may have built up in the ltration circuit using the drainage, which is
usually on the lter (see the pool lter manual).
• Check that there are no leaks in the hydraulic circuit.
• Check that the motor is turning in the right direction (look at the fan located at the back of
the motor). (FIGURE 8).
FAN COVER
RIGHT
WRONG
FIGURE 8

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• Run the pump and from the pre-lter lid check that the pump is fully primed for no more
than 12 minutes.
•The motor guard circuit breaker's current may not exceed the nominal value displayed on
the pump’s rating plate by more than 15%.
• The variable-frequency drive’s output frequency range must be 20–50 Hz. The pump must
not be used outside of this range.
• Check that all units installed in the pool are able to work properly when the pump is run-
ning at low speed (20 Hz).
4. MAINTENANCE
Depending on how clean the water is, the following should be checked every 150 hours:
-Clean the prelter basket to avoid pressure drops. Do not hit the basket during the cleaning
process as this could potentially damage it.
-Every time the prelter is opened, clean o any dirt on the seal and its housing to ensure
the cover is watertight when closed (FIGURE 9).
The pump components that are prone to wear and tear through routine use must be regularly replaced
for the pump to maintain good performance. The pump’s fungible components or consumables are
listed in the table below along with the time when they should be replaced.
DESCRIPTION OF THE COMPONENT REPLACEMENT TIME
Capacitor 10,000 h
Bearings 10,000 h
Mechanical seal 10,000 h
O-rings and other seals (1) 10,000 h
(1) Opening and closing the pump to replace internal parts does not guarantee subsequent water
tightness. Therefore, it is recommended that O-rings and other seals be replaced whenever the
mechanical seal and/or bearings are replaced.
The service life of the above components has been calculated based on the pump’s normal conditions
of use, installation and maintenance as described in this pump’s manuals.
Follow the instructions in this pump’s manuals to ensure it works properly.

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PREFILTER LID
SEAL HOUSING MUST BE CLEANED
SEAL
PREFILTER
BASKET
FIGURE 9
• If the pump stops, check that the motor’s amp consumption reading while in operation is
the same or below that displayed on the manufacturer’s rating plate; in its absence contact
your nearest Technical Assistance Service.
• Drain the pump of water in the event that it will spend some time without running, mainly
in cold countries where there is also a risk of freezing temperatures.
• To drain the pump, remove the draining plug.

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5. TROUBLESHOOTING
• If a problem arises, before contacting your dealer, make the following simple checks as
described in the table below.
• If the problem persists, contact your dealer.
• The following may only be carried out by a qualied service personnel.
CAUSE SOLUTION
The pump does not
start/The motor does
not turn.
•Power cut. Check the circuit breakers.
•Check the connection between the power cable and the motor’s terminals.
•Check that the motor shaft is turning freely. Check that there is no debris
in the pre-lter basket.
•If any debris still remains, remove the pump to access the turbine.
The pump does not
prime/There may be
air in the pre-lter
basket.
•Check the position and watertightness of the valves in the hydraulic circuit.
•Air is trapped in the circuit. Bleed the hydraulic circuit (drainage on the lter).
•The pool’s water level is too low, so the circuit is sucking in air. Fill the pool.
•The pre-lter lid is defective. Check the state of the seal and that the lid
is watertight.
Low ow rate/Low
lter pressure.
•The pre-lter basket is full of debris. Clean it.
•Air leak in the circuit. Check all of the tightening torques.
•The turbine and pump diuser are blocked or worn. Replace them.
•The diuser’s seal is worn. Replace it.
•Reverse rotation of the motor (only on three-phase pumps). Check the
connections of pump’s terminal blocks.
Low ow rate/High
lter pressure.
•The lter is blocked up. Wash the lter.
•Check the position of the valves in the hydraulic circuit.
The pump makes a
lot of noise.
•Air leak or cavitation in the suction piping. Check the position of the
valves and adjust them whenever necessary.
•Pump badly placed on the ground. Check that it is on a at, hard,
horizontal surface. Use anti vibration pads whenever necessary.
•There is a foreign body in the pre-lter basket.
•There is a foreign body in the body of the pump. The pump must be
removed and taken for servicing.
Leak between the
body of the pump
and the motor.
•The mechanical seal is worn. Replace it.
•The seal between the pump’s body and ange is worn. Replace it.

Code 05085-0010EN/ Rev. 00
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