Product Information; General Description - Wilo Economy Notice De Montage Et De Mise En Service

English

5 Product information

5.1 Type key
e.g.: CO-2 MHI 4 05/ER-EB
CO COmpact pressure boosting system
2 Number of pumps
MHI Pump series reference
(see attached pump documentation)
4 Nominal flow rate Q
3
[m
05 Number of pump stages
ER Control unit, in this case the Economy
Controller
EB Additional reference, in this case,
European Booster, for example
e.g.: CO [R]-3 MVI S 8 04/CC-EB
CO COmpact pressure boosting system
[R] Controller, at least one pump controlled by
frequency converter
3 Number of pumps
MVI Pump series reference (see attached pump
documentation)
S Glandless pump motor
8 Nominal flow rate Q
3
[m
04 Number of pump stages
CC Control unit, in this case,
Comfort Controller
EB Additional reference, in this case,
European Booster, for example
e.g.: CO-6 Helix V 36 02/2/CC
CO COmpact pressure boosting system
3 Number of pumps
Helix V Pump series reference
(see attached pump documentation)
36 Nominal flow rate Q
3
[m
02 Number of pump stages
2 Number of reduced stages
CC Control unit, in this case,
Comfort Controller
e.g.: COR-4 Helix VE 22 03/VR
CO COmpact pressure boosting system
R Controller, at least one pump controlled by
frequency converter
4 Number of pumps
Helix VE Pump series reference (see attached pump
documentation)
VE for vertical pump with electronic speed
control
22 Nominal flow rate Q
3
[m
03 Number of pump stages
VR Control unit, in this case,
Vario controller
24
/h] (2-pole type/50 Hz)
/h] (2-pole type/50 Hz)
/h] (2-pole type/50 Hz)
/h] (2-pole type/50 Hz)
6 Description of the product and accessories

6.1 General description

The DEA is a compact system that is supplied
completely tubed and ready to connect (except
for separate floor model SG). The only connections
that have to be made are for the inlet and pressure
pipes and the power mains connection. It may also
be necessary to install accessories ordered sep-
arately but included in the delivery.
The DEA with non-self-priming pumps can be
connected both indirectly (Figure 6 - system sep-
arated by a non-pressurised water break tank) and
directly (Figure 5 - connection without separation
of the system) to the water supply mains. Self-
priming pumps may only be connected indirectly
(system separated by non-pressurised break tank)
to the public water supply mains. You will find
notes on the pump type used in the attached
installation and operating instructions for the
pump.
Observe the relevant, applicable regulations and
standards for using the potable water supply and/
or fire extinguishing supply.
The systems must be operated and maintained
in accordance with the relevant regulations
(in Germany, according to DIN 1988 (DVGW)) so
that the operational security of the water supply
is permanently ensured and neither the public
water supply nor other consumption installa-
tions are disrupted.
The relevant instructions or standards (see
section 1.1) on connection and the type of con-
nection to the public water mains must be
observed; and supplemented by regulations of
water companies or the responsible fire protec-
tion authorities, as required. In addition, local
conditions (e.g. a supply pressure that is too high
or fluctuates sharply and which might require the
installation of a pressure relief valve) must also be
observed.
6.2 Components of the pressure boosting system
(DEA)
The complete system is made up of three main
components. The scope of delivery includes sep-
arate installation and operating instructions for
the parts/components relevant to operation (also
see attached installation plan).
Mechanical and hydraulic system components
(Figure 1a, 1b and 1c) :
The compact unit is mounted on a base frame
with vibration damper (3). It consists of a group
of 2 to 6 high-pressure multistage centrifugal
pumps (1), which are combined by means of an
inlet manifold pipe (4) and a delivery manifold
pipe (5). A check valve (6) and a non-return
valve (7) are fitted on the inlet or delivery side of
each pump. A unit with a pressure sensor and
manometer (8) that can be shut off and an 8-litre
diaphragm pressure vessel (9) with a through-
flow fitting that can be shut off (for throughput
WILO SE 07/2010