Technical Data; Storage; Frost Protection; Sound Pressure Level - Grundfos SQE Montage- Und Betriebsanleitung

2. Technical data

Supply voltage:
1 x 200-240 V –10%/+6%, 50/60 Hz, PE.
Operation via generator: As a minimum, the genera-
tor output must be equal to the motor P
Starting current:
The motor starting current is equal to the highest
value stated on the motor nameplate.
Power factor:
PF = 1.
Motor liquid:
Type SML 2.
Motor cable:
1.5 m, 3 x 1.5 mm², PE.
Pump outlet size:
SQ 1, SQ 2, SQ 3: Rp 1¼.
SQ 5, SQ 7: Rp 1½.
Pump diameter:
74 mm.
Borehole diameter:
Minimum 76 mm.
Installation depth:
Maximum 150 m below static water level.
See also section 5.8.2 Installation depths .
Net weight:
Maximum 6.5 kg.

2.1 Storage

Storage temperature: –20°C to +60°C.

2.1.1 Frost protection

If the pump has to be stored after use, it must be
stored on a frost-free location or it must be ensured
that the motor liquid is frost-proof.
The motor must not be stored without being filled
with motor liquid.

2.2 Sound pressure level

The sound pressure level of the pump is lower than
the limiting values stated in the EC Council Directive
98/37/EEC relating to machinery.

3. Preparation

GRUNDFOS MS 3 and MSE 3 submersible motors
have water-lubricated slide bearings. No additional
lubrication is required.
The submersible motors are factory-filled with a spe-
[kW] + 10%.
1
cial GRUNDFOS motor liquid (type SML 2), which is
frost-proof down to –20°C and preserved to prevent
the growth of bacteria.
The level of motor liquid is decisive for the operating
life of the bearings and consequently the life of the
motor.

3.1 Refilling of motor liquid

It is recommended to refill the motor with GRUND-
FOS motor liquid SML 2.
To refill the motor, proceed as follows:
1. Remove the cable guard and separate the pump
part from the motor.
Fig. 1
10
2. Place the motor in vertical position with an incli-
nation of approx. 10°.
3. Remove the filling plug using a screwdriver or a
similar tool.
4. Inject motor liquid into the motor with a filling sy-
ringe or the like.
5. To allow possible air to escape, move the motor
from side to side.
6. Refit the filling plug and make sure it is tight.
7. Assemble pump part and motor.
8. Refit the cable guard.
The pump is now ready for installation.

3.2 Positional requirements

The pump is suitable for vertical as well as horizontal
installation, however, the pump shaft must never fall
below the horizontal plane, see fig. 2.
5