Installation; Assembly; Installation With Aqtap Water Dispenser; Installation Variants - Grundfos AQpure Installation And Operating Instructions Manual

4. Installation

The operating company is responsible for the
preparation of the installation location according to
the following information and section:
1.2.2 Obligations of the operating
Caution
The installation itself (installation of membrane and
GAC filter, hydraulic and electrical connection etc.)
must only be done by certified service staff according
to the separate service instructions, which are
supplied to certified service staff only.
Warning
The installation must meet the local requirements
and standards for the installation of machinery
equipment.
Observe the separate supplier documents for the
Caution
components. All supplier documents are part of the
documentation package delivered with the system.

4.1 Assembly

The system is completely assembled at the factory, and is
subjected to a functional test before delivery. Some parts are
disassembled for transport. See also section:
delivery.
The wiring between the control cabinet and the different electrical
components is completely established.

4.1.1 Installation with AQtap water dispenser

The AQpure system can be combined with one or more AQtap
water dispensers installed downstream the AQpure system.
The connection of AQpure systems with AQtap dispensers is only
possible with external tank setup 2. See section:
tank setup options.
The external tank must be installed at an elevated level to ensure
the required inlet pressure for the AQtap dispenser installed
downstream. See technical data in the AQtap manual.
The UV disinfection is only sufficient, if the AQtap dispenser is
placed directly downstream the AQpure system. For longer
distances, chlorination of the water is recommended to avoid
bacterial growth.

4.2 Installation variants

For detailed technical data of the feed pump (e.g. suction lift,
minimum inlet pressure), see separate supplier documents
delivered with the system.
The raw water connected to the system must meet the specified
feed water requirements. See section:
requirements.

4.2.1 Installation with direct connection

The system is connected directly to the raw water source (D5).
The use of a coarse strainer (D4) is mandatory to prevent dirt
from getting into the suction line (D1). A floater (D2) keeps the
coarse strainer in a sufficient distance to the surface to prevent
suction of dirt and algae into suction line (D1). The foot valve (D3)
is installed to avoid draining of the suction line when the system is
stopped.
The suction line (D1) must be kept as short as possible.
D1
D2
D3
D4
Fig. 1 Installation example for direct connection
company.
3.2 Scope of
6.5.1 External
11.1.5 Feed water
GP1
D5
Pos. Description
GP1 Feed pump
D1 Suction line
D2 Floater

4.2.2 Installation with a break tank

A break tank is installed between the raw water source and the
system. The tank outlet is equipped with an isolating valve (2)
and an inlet strainer (3) with a minimum particle mesh of 300 um.
This type of installation is recommended if pre-treatment of the
raw water is necessary or if the distance or difference in height
between the raw water source and the AQpure system exceeds
the suction capacity (NPSH) of the feed pump (GP1).
1 2 3
Fig. 2 Example of installation with a break tank
Pos. Description
1 Break tank
2 Isolating valve
3 Inline strainer
4 Suction line
5 Feed pump

4.3 Mechanical installation

4.3.1 Installation location

• The installation location must be free of vibrations.
• The installation location must be protected from rain, humidity,
condensation, direct sunlight and dust.
• The installation location must be sufficiently illuminated to
ensure safe handling of the system.
• The installation location must be a solid building for protection
from vandalism and tampering.
• Observe the permissible ambient conditions. See section:
11.1.2 Ambient conditions.

4.3.2 Foundation and space requirement

For the installation of the system, provide a solid concreted
surface, suitable for the weight and dimensions of the system.
Observe the maximum floor load.
Caution
The foundation must be based on a sufficiently
bearing ground.
Install the system on a horizontal foundation.
Maximum slope: 1:200
Minimum load-bearing capacity [kg]: 1200
Make sure, that the system is always easily accessible for
operation and maintenance.
Observe the total dimensions of the system. If the system is
equipped with an UV disinfection module, observe the space
required for maintenance of this module. For details see section:
11.4 Dimensional drawings.
Pos. Description
D3 Foot valve
D4 Coarse strainer
D5 Raw water source
4 5
7