General Information; Target Group; Symbols Used In This Document; Receiving The Product - Grundfos SCALA Installation And Operating Instructions Manual

1. General information

1.1 Target group

These installation and operating instructions are
intended for professional installers.

1.2 Symbols used in this document

Warning
If these safety instructions are not
observed, it may result in personal injury.
Warning
If these instructions are not observed, it
may lead to electric shock with consequent
risk of serious personal injury or death.
If these safety instructions are not
observed, it may result in malfunction or
damage to the equipment.
Notes or instructions that make the job
easier and ensure safe operation.

2. Receiving the product

2.1 Inspecting the product

Check that the product received is in accordance
with the order.
Check that the voltage and frequency of the product
match voltage and frequency of the installation site.
See section 6.4.1 Nameplate.

2.2 Scope of delivery

The box contains the following items:
• 1 Grundfos SCALA pump
• 1 quick guide
• 1 safety instructions booklet.
4

3. Installing the product

3.1 Location

The pump can be installed indoors or outdoors, but it
must not be exposed to frost.
We recommend that you install the pump near a
drain or in a drip tray connected to a drain in order to
lead away possible condensation from cold surfaces.
If the unlikely event of an internal leakage
occurs, the liquid will be drained through
the bottom of the pump and/or through the
pump cover instead of causing damage to
the pump.
Install the pump in such a way that no
undesirable collateral damage can arise.
3.1.1 Minimum space
The pump requires a minimum space of 430 x 215 x
325 mm (17 x 8.5 x 12.8 inches).
Even though the pump does not require much space,
we recommend that you leave enough space for
service and maintenance access.
3.1.2 Installing the product in frosty environment
Protect the pump from freezing if it is to be installed
outdoors where frost may occur.

3.2 System sizing

Warning
The system in which the pump is
incorporated must be designed for the
maximum pump pressure.
The pump is factory-set to three bar outlet pressure
which can be adjusted according to the system in
which it is incorporated.
The tank precharge pressure is 1.25 bar (18 psi).
In case of suction lift of more than six metres, the
pipe resistance on the outlet side must be at least
two metres water column or 3 PSI at any given flow
in order to obtain optimum operation.

3.3 Mechanical installation

Warning
Before starting any work on the product,
make sure that the power supply has been
switched off and that it cannot be
accidentally switched on.