Grundfos SB 3-25, Инструкция по установке и эксплуатации

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4. Starting up the product
1. Open a tap in the system.
2. Switch on the power supply.
3. Check that the pump is running and water is
coming out of the tap.
4. Check that the pump is running and pressure is
being built up in the system.
5. Close the tap.
6. Check that pressure has been built up in the
system.
7. Check that the pump stops after a few seconds.
4.1 SBA starting and stopping conditions
When water is consumed in the water supply system,
the pump starts when the starting conditions are
fulfilled. This happens for example when a tap is
opened which makes the pressure in the system
drop. The control unit stops the pump again when
consumption stops, that is when the tap is closed.
Starting conditions
The pump starts when one of the following
conditions is fulfilled:
•
The flow rate is higher than the minimum flow
rate.
• The pressure is lower than the start pressure.
Stopping conditions
The pump stops with a time delay of 10 s when the
flow rate is lower than the minimum flow rate.
The start pressure and minimum flow rate values are
shown in section
9. Technical data .
Automatic restart of SBA pumps
SBA pump models with a float switch automatically
restart when water is added. Models without a float
switch will attempt to restart every 24 hours.
5. Handling and storing the product
5.1 Handling the product
5.2 Storing the product
Store the product indoors in a dry and dust-free
environment. Protect the product from vibrations.
Storage temperature: -10 to +40 °C.
5.3 Frost protection
It the pump is not used during periods of frost, drain
the pump and the pipe system before you take the
pump out of operation.
WARNING
Flammable material
Death or serious personal injury
- Do not use the pump for flammable
liquids, such as diesel oil, petrol or
similar liquids.
DANGER
Electric shock
Death or serious personal injury
- Do not use the pump in swimming
pools, garden ponds or similar places if
there are people in the water.
During operation, the SB HF pump inlet
strainer must always be completely
submerged in liquid.
Do not run the SB HF pump against a
closed outlet valve.
Connect SB pumps to an external
controller.
Do not lift the product by the power cable.
Lift the product by means of a rope.
Do not drop or shake the product.