12
90
°
10°
90
°
Pump WaterVISE, FloVISE
MA25-05 GB
ENGLISH
Operation
Never dry run the pump, as this could lead to shaft sealing.
The pump must not be operated without a strainer bucket, as this may cause foreign material to penetrate and damage vital
parts. Make sure that openings/outlets on the pool’s suction side are in accordance with the applicable guidelines, standards
and instructions.
Differential pressure must be at least 8 MVP at maximum speed
. The pump must not work continuously
with very little differential pressure (risk of cavitation, can damage vital parts).
1. Make sure that the pump is filled with water before starting.
Disassemble the lid of the pre-filter housing by lifting the lock handle and turning the lid clockwise.
Fill the housing with water up to the suction connection.
2. Close the lid, turn clockwise and make sure that the lock handle touches bottom.
3. Check that all the valves of the pump are open. Make sure that the opening below between the motor
and the pump housing is not blocked (blocking could damage the pump).
4. Open the valve on the pump’s pressure side halfway.
Never run the pump with a closed valve, this could cause damage.
5. Start the pump and evacuate any air completely, before the valve on the pressure side is opened completely.
6. Check for any leakage.
Handling
Always close the pump before the function mode on the sand filter’s central valve is changed
(or other
valves are closed). Do not touch the motor during operation. The motor can reach high temperatures during operation.
Let the motor cool down before any service. Regularly check that the strainer bucket is free from foreign objects and rubbish.
Note! Never place chemical preparations directly inside the pump’s strainer bucket.
This will damage the pump’s
components.
Continuous operation is recommended to prevent condensation with the risk of AZ<. Repeat down times during cool ambient
temperatures are not good for the motor as deposits can easily build up, which can block the movement. In case of long down-
times, more than 1 week, the motor shaft must be checked/put into motion before starting up. First disconnect the current to the
pump, use a screwdriver at the rear edge of the centre of the motor against the impeller and turn the shaft or dismantle the hood
and turn the fan.
In case of a freezing hazard
The whole pump and its inlet and outlet pipes must be drained if there is a freezing hazard. The pump is drained out completely
by screwing out its drain valves (E), see picture 1.
Troubleshooting
For all troubleshooting, voltage to the pump must be disconnected.
The supply voltage to the pump must also be disconnected if the equipment leaks.
Do not start the pump multiple times if the pump/motor shaft is blocked, as this will damage the motor.
Problem
Cause
Measure
Fuses/motor protection
area tripped.
The pump is overloaded.
Check the movement of the motor shaft:
If the shaft speed is very slow, contact the installer.
If the shaft turns easily, contact an electrician for measuring the
operational voltage and power consumption.
The pump is working,
but gives a poor flow.
Insufficient pump effect.
Check that the pump’s strainer bucket is free from rubbish and foreign
objects.
Check that supply of water to the pump as well as the outlet is not
obstructed from water flow (shut-off valves, etc).
Check the motor’s direction of rotation. In case of opposite rotation,
the pump gives significantly lower flows and higher sound level.
Check that the pipe dimensions are as per the specification.
The pump motor goes
hot.
Insufficient cooling.
Check that the motor fan receives sufficient cooling.
Check that the ambient temperature is not too high.
Too high pressure on the
pressure side.
Check that the pump releases a flow that is 10% more than the pump’s
lifting height Hmax (see the pumps rating plate).
Incorrect setting of the
motor protection.
Check that the value set on the motor protection conforms to the pump
motor rating plate.
VCheck that the value
set on the motor protec-
tion conforms to the
pump motor rating plate.
(A few drops are normal
during the operation).
In the event of constant leakage, the shaft sealing must be changed.
(The shaft sealing is a wearing component and the life span is affected
by a number of different factors, among others, the number of opera-
tional hours and water quality).
Spare parts: see the Pahlén website.
