Receiving The Product; Inspecting The Product; Scope Of Delivery; Caution - Grundfos SCALA Installation And Operating Instructions Manual

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.

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

Caution

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.

3.4 Foundation

Fasten the pump to a solid horizontal foundation by means of
screws through the holes in the base plate. See figures
Horizontal foundation
Fig. 1
Base plate
Fig. 2
A 130 mm 5.12 inches
B 181 mm 7.13 inches
C 144 mm 5.67 inches
3.4.1 Pipework
Make sure that the pump is not stressed by the pipework.
The pumps are equipped with flexible connections, ± 5 °, to
facilitate the connection of inlet and outlet pipes. The inlet and
outlet ports can be loosened by turning the union nuts by hand.
Always loosen and tighten inlet and outlet union nuts
Caution
by hand.
1. Carefully screw the inlet and outlet connections on to the inlet
and outlet ports using a pipe wrench or similar tool.
2. Then fit the connections to the inlet and outlet holding the
connections with one hand, and tightening the union nuts with
the other hand. See fig. 3.
How to fit the connections
Fig. 3
2 and 1.
A
3