Shaft Seal Run-In; Storing And Handling The Product; Handling; Storing - Grundfos SCALA2 Installation And Operating Instructions Manual

4.3 Shaft seal run-in

The shaft-seal faces are lubricated by the pumped liquid,
meaning that there may be a certain amount of leakage from the
shaft seal.
When the pump is started up for the first time, or when the shaft
seal has been replaced, a certain run-in period is required before
the leakage is reduced to an acceptable level. The time required
for this depends on the operating conditions, that is, every time
the operating conditions change, a new run-in period will be
started.
Under normal conditions, the leaking liquid will evaporate. As a
result, no leakage will be detected.

5. Storing and handling the product

5.1 Handling

Caution
Take care not to drop the pump as it may break.

5.2 Storing

In case the pump is to be stored for a period of time, drain it and
store it in a dry location.
Temperature range during storing must be -40 to 70 °C (104 to
158 °F).

5.3 Winterizing

If the pump is going to be out of operation during the winter and
can be exposed to frost, it must be disconnected from the power
supply and winterized.
Proceed as follows:
1. Stop the pump by means of the on/off button
2. Disconnect the power supply.
3. Open a tap to release the pressure in the pipe system.
4. Close the isolating valves and/or drain the pipes.
5. Gradually loosen the priming plug to release the pressure in
the pump.
6. Remove the drain plug to drain the pump. See fig. 9.
Fig. 9 Draining the pump
5.3.1 Startup after the winter
Check that the pump is not blocked by following the steps in
section 9.1 Deblocking the pump.
See section 4. Starting up the product.
6

6. Product introduction

6.1 Product description

Fig. 10 Grundfos SCALA pump
Pos. Description
1 Air valve for built-in pressure tank
2 Operating panel. See section 7. Control functions.
3 Nameplate. See section 6.4.1 Nameplate.
Plug for access to pump shaft. See section
4
9.1 Deblocking the pump.
5 Priming plug. See section 4.1 Priming the pump.
Outlet opening. With ± 5 ° flexible connection. See
6
section 3.4.1 Pipework.
Inlet opening. With ± 5 ° flexible connection. See section
7
3.4.1 Pipework.
.
8 Drain plug. See section 5.3 Winterizing
9 Ventilation holes. Must not be flooded.

6.2 Application

The pump is suitable for pressure boosting of fresh water in
domestic water supply systems.

6.3 Pumped liquids

The pump is designed for clean fresh water and chlorinated water
< 300 ppm.
1
2
3
4
9
5
6
7
8