Storage; Storage In The Tank; Nameplate - Grundfos DWK O 6.50.075 Montage- Und Betriebsanleitung

6.2 Storage

6.2.1 Warehouse storage
• The warehouse must be free from excessive
humidity, corrosive gases, vapours or vibrations
which might damage the pumps.
• Store the pumps in a vertical position on a pallet
or stand to keep the pump off the floor and
facilitate easy removal.
• Coil up the cable, and seal the open end tightly
with waterproof plastic and tape or a cable cap.
Do this to prevent moisture from penetrating into
the motor which will cause severe damage to the
windings.
• Give all unpainted surfaces a light coat of oil or
grease to prevent corrosion.
• If new pumps are stored for more than two
months, turn the impeller by hand every two
months to prevent the mechanical seal faces
from seizing up. Failure to do this may result in
seal damage when the pump is started up again.

6.2.2 Storage in the tank

• If an installed pump is not in operation for a long
time, check the insulation resistance and run the
pump for 30 minutes every month. If the pump
cannot be run due to lack of water in the tank,
inspect the pump and turn the impeller by hand
each month and prior to putting the pump back
into service. If the insulation resistance drops
below 10 megohms, contact Grundfos.
• When the pump is not in service, disconnect the
power supply from the control panel.
• If the pump is disconnected from the control
panel when not in service, protect the cable end
as described in section
storage.
8
6.2.1 Warehouse

7. Nameplate

The nameplate is fitted to the top cover of the pump.
Fix the extra nameplate supplied with the pump at
the installation site or keep it in the cover of this
booklet.
1
2
3
Type
4
Model
Hmax m Qmax
5
6
Motor ~ Hz P1/P2
7 -1
n min
Weight kg
8
9
DK-8850 Bjerringbro Denmark
12 13
10 11
Fig. 3 Nameplate
Pos. Description
1 Notified body
2 Type designation
3 Product number and serial number
4 Maximum head [m]
5 Enclosure class
6 Maximum installation depth [m]
7 Number of phases
8 Frequency [Hz]
-1
9 Speed [min ]
10 Weight
11 Rated voltage [V] Star
12 Rated voltage [V] Delta
13 Insulation class
14 Rated current [A] Star
15 Rated current [A] Delta
16 Motor input power P1 [kW]
17 Motor output power P2 [kW]
18 Power factor
19 Maximum liquid temperature [°C]
20 Maximum flow [m
21 Production code (year/week)
21
20
P.c.
19
l/s Tmax. : c
18
kW
17
V A
A
V
16
14 15
3
/h]