Drinking Water; Preparations Before Installationmechanical Installation; Checking The Motor Liquid - Grundfos SP Series Installation And Operating Instructions Manual

4.3 Drinking water

If the product is used for drinking water, the following precautions
must be taken to avoid contamination:
• Before use, make sure that the product does not come into
contact with dust or with chemicals not suitable for contact
with drinking water, for example lubricants, greases or oils.
• If the pump is used with potentially toxic liquids, it can no
longer be used for drinking water.
• In case of maintenance, be sure to always use original parts to
maintain the initial hygienic characteristics of the product.
5. Preparations before
installation
5.1
DANGER
Electric shock
Death or serious personal injury
- Switch off the power supply before you start any
work on the product.
- Make sure that the power supply cannot be
accidentally switched on.
WARNING
Crushing of feet
Death or serious personal injury
- When lifting the pump out of the box, use lifting
equipment which is approved for the weight of the
product.
- Wear personal protective equipment.
WARNING
Crushing of hands
Death or serious personal injury
- When lifting the pump out of the box, use lifting
equipment which is approved for the weight of the
product.
- Wear personal protective equipment.
Grundfos recommends fitting a 50 cm long pipe to
the pump to facilitate handling of the pump during
installation.
Fig. 2 Handling of the motor

5.2 Checking the motor liquid

The motors are factory-filled with a special
non-toxicpoisonous liquid which is frost-proof down to -20 °C.
Check the level of motor liquid and refill if required.
Use tap water.
If frost protection is required, special Grundfos liquid
must be used to refill the motor. Otherwise tap water
may be used for refilling; however.
6
installationMechanical
FDA approved
Refill liquid as described below.
5.2.1 Grundfos MS 40200 and MS
The filling hole for motor liquid is placed in the following positions:
• MS 4000: on the side of the motor near the
motor.
• MS 402: in the bottom of the motor.
1. Position the submersible pump as shown in fig. 3. The filling
screw must be at the highest point of the motor.
2. Remove the screw from the filling hole.
3. Inject liquid into the motor with the filling syringe until the
liquid runs back out of the filling hole. See fig. 3.
4. Replace the screw in the filling hole and tighten securely
before changing the position of the pump.
Torques
• MS 4000: 3.0 Nm.
• MS 402: 2.0 Nm.
The submersible pump is now ready for installation.
MS 4000
Fig. 3 Motor position during filling - MS 4000 and MS 402
5.2.2 Grundfos MS 6000 motors
• If the motor is delivered from stock, the liquid level must be
checked before the motor is installed. See fig. 4.
• In the case of service, the liquid level must be checked. See
fig. 4.
Filling procedure:
The filling hole for motor liquid is placed at the top of the motor.
1. Position the submersible motor as shown in fig. 4. The filling
screw must be at the highest point of the motor.
2. Remove the screw from the filling hole.
3. Inject liquid into the motor with the filling syringe (fig. 4) until
the liquid runs back out of the filling hole.
4. Replace the screw in the filling hole and tighten securely
before changing the position of the motor.
Torque: 3.0 Nm.
The submersible motor is now ready for installation.
• If the motor is delivered from stock, check the level of motor
liquid before fitting the motor to the pump. See fig. 4.
• When pumps are delivered direct from Grundfos, the level has
already been checked.
• Check the level in connection with service. See fig. 4.
The filling hole for motor liquid is placed at the top of the motor.
1. Position the submersible pump as shown in fig. 4. The filling
screw must be at the highest point of the motor.
2. Remove the screw from the filling hole.
3. Inject liquid into the motor with the filling syringe until the
liquid runs back out of the filling hole. See fig. 4.
4. Replace the screw in the filling hole and tighten securely
before changing the position of the pump.
Torque: 3.0 Nm.
The submersible pump is now ready for
40002 motors
topin the top of the
MS 402
installation.