Mechanical Installation; Lifting The Product; Pump Location; Outside Installation - Grundfos CR Installation And Operating Instructions Manual

8. Mechanical installation

WARNING
Contamination when pumping drinking water
Death or serious personal injury
- Before the pump is used for supplying drinking
water, flush the pump thoroughly with clean water.
- Do not use the pump for drinking water if the
internal parts have been in contact with particles or
substances not suitable for water intended for
human consumption.
The pump must be installed according to national
water regulations and standards.

8.1 Lifting the product

WARNING
Falling objects
Death or serious personal injury
- Follow the lifting instructions.
- Use lifting equipment which is approved for the
weight of the product.
- Persons must keep a safe distance to the product
during lifting operations.
- Wear personal protective equipment.
For lifting instructions, see section

8.2 Pump location

Locate the pump in a dry, well-ventilated, frost-free area which is
not subject to extreme variation in temperature.
Make sure the pump is mounted at least 6 inches (150 mm) clear
of any obstruction or hot surfaces.
The motor requires an adequate air supply to prevent overheating
and adequate vertical space to remove the motor for repair.
In open systems requiring suction lift, locate the pump as close to
the liquid source as possible to reduce friction loss in pipes.

8.3 Outside installation

Grundfos recommends that pumps installed outside have rain
cover for the motor and remove, at a minimum, one of the motor
drain plugs. Failure to remove a motor drain plug will result in
condensation in the motor and cause motor damage or failure.
Grundfos recommends that you consult the motor manufacturer's
installation and operation instructions.
12
4.3 Lifting instructions.

8.4 Foundation

Use concrete or similar foundation material to provide a secure,
stable mounting base for the pump.
See table below for bolt hole center line dimensions for the
various pump types.
Secure the pump to the foundation using all four bolts and shim
pump base to assure the pump is vertical and all four pads on the
base are properly supported (uneven surfaces can result in pump
base breakage when mounting bolts are tightened).
Fig. 4 Pump position
The pump can be installed vertically or horizontally. See fig. 4.
Ensure that an adequate supply of cool air reaches the motor
cooling fan. The motor must never fall below the horizontal plane.
Arrows on the pump base show the direction of flow of liquid
through the pump.
To minimize possible noise from the pump, it is advisable to fit
expansion joints on either side of the pump and anti-vibration
mountings between the foundation and the pump.
Make sure the vent plug is located in the uppermost
position.
Fit isolating valves on either side of the pump to avoid draining
the system if the pump needs to be cleaned, repaired or replaced.