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Pipe connection contined, Starting the pump, Pump operation – Davey SILENSOR POOL PUMP (including 400v 3 phase model) User Manual

Page 4: Emptying the strainer basket, Trouble shooting, Removal of the pump from pipework

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Pipe Connection contined...

The use of any pipe smaller than those specified above is not recommended. Suction piping

should be free from all air leaks and any humps and hollows which cause suction difficulties.

The discharge piping from the pump outlet should be connected to the inlet connection on the

swimming pool filter (usually at the filter control valve).

Starting the Pump

To operate efficiently and prevent pump damage there must be a free flow of water to and

from the pump. Before starting ensure that:

- all pipework is correctly sealed.

- the pool/spa water level is at the correct height.

- that all appropriate valves are open and there is nothing preventing the flow of water

through the system.

1. First prime the pump by removing the strainer basket lid and filling the strainer basket

area with water. Replace the lid, ensuring that it seals on the large oring.

2. Connect to the power supply and switch on.

3. Allow the pump to run, so that any air trapped may be expelled.

4. If prime is not established within approximately two minutes, as evidenced by a strong flow

of water, switch off the pump and repeat the procedure. Continued evidence of air under

the strainer basket lid indicates an air leak in the suction piping which should be rectified to

avoid pump damage.

Pump Operation

For optimum pump performance, the strainer basket housing should always be full of water

and free from air bubbles. The water level of the pool should always be maintained to at least

halfway up the skimmer box ensuring water is in the pump at all times. From time to time it

may be necessary to re-prime the pump. This should be carried out as described above.

Emptying the Strainer Basket

The strainer basket should be inspected frequently through the transparent lid and emptied

when a build up of rubbish is evident. The directions below should be followed.

1. Switch off pump.

2. Close all valves in pipework.

3. Unscrew the strainer basket lid anti-clockwise and remove.

4. Remove the strainer basket by lifting upwards from its housing.

5. Empty the trapped refuse from the basket. Hose out with water if necessary.

6. Check the strainer basket for cracks, replace the strainer basket in the pump if OK.

7. Replace the lid and ensure that it seals on the large rubber oring.

Firm hand tightness

only is required. The oring & thread can be lubricated with Hydra slip or equivalent

products.

8. Open all valves in pipework.

Never run pump dry. Running the pump with no water may damage the

mechanical seals, causing leakage and flooding. Dry running damage and

associated damage is not covered under warranty. Silensor incorporates

dry run protection which will need to be re-set by turning off the power

supply, reducing potential damage.

Barrel unions need to be hand tightened. No sealant, glues or silicones

are required.

Failure to undertake regular maintenance may cause damage not covered

by warranty.

Trouble Shooting

If the pump runs but there is no water flow or water flow is reduced, the following

condition may apply:

1. The filter requires backwashing or it is blocked. Refer to the relevant section in the Filter

Manual.

2. The pump is not primed. Re-prime as per instruction in ‘Starting the pump’

3. There are air leaks in the suction piping. Check all piping and eliminate leaks, also check

for a loose strainer basket lid. Air bubbles in the water flowing back to the pool would

indicate a leak in the suction to the pump allowing air to enter the pipework.

4. A leaking pump shaft seal may also prevent operating. Evidence of this would be water on

the ground under the pump.

5. The pump is not able to get water from the pool. Check that the valves to the pump are

fully open and that the pool water level is up to the skimmer box.

6. Blockage in the piping or pump. Remove the strainer basket and check for any blockage

to the pump impeller entry. Check the skimmer box for blockage.

If the pump does not operate, the following conditions may apply:

1. The power is not connected. For 240 volt only, check the power point by plugging in a

portable appliance to ensure power is available. Also check fuses and the main power

supply switch

2. Automatic overload is tripped following an overheating period. The pump has an in-built

thermal overload which will re-set after the motor has cooled and the power supply has

been re-set (turn off and back on). Determine the cause of the overload tripping and

rectify.

3. Blockage is preventing the pump from rotating.

4. Motor is burnt out - burning smell is evident. Replacement is required.

If you are unable to resolve any installation or operation difficulties with your Silensor

®

,

contact the supplier from whom the pump was purchased or your nearest Authorised Davey

Pool Equipment Service Centre. If any further assistance is required, contact the Davey

Customer Service Centre at the address indicated in this manual.

Removal of the Pump from Pipework

Should it be necessary to remove the pump, follow these instructions:

1. Switch off the power and remove the plug from the power source.

2. Close the water valves on the pool return and the pump inlet pipework.

3. Remove the discharge & suction barrel unions taking care not to lose the orings.

4. Move the pipework with the barrel unions attached until the pump can be pulled clear.

NOTE: If the pump is wired into a time clock or another automatic control,

the wiring should be removed by a qualified electrician.

NOTE: When making any enquiries about your Silensor

®

be certain to quote

the model number from the nameplate located on motor.