Scope Of Delivery; Accessories; Description Of The Product And Accessories; General Description - Wilo Comfort Co R-Mvi Serie Manual Del Usuario

5.3 Scope of delivery

• Pressure boosting system
• Installation and operating instructions for the
pressure boosting system
• Installation and operating instructions for the
pumps
• Installation and operating instructions for the
control device
• Factory acceptance inspection certificate (in
accordance with EN 10204 3.1.B)
• Installation plan (if applicable)
• Electrical circuit diagram (if applicable)
• Installation and operating instructions for the
frequency converter (if applicable)
• Supplementary sheet with the factory settings for
the frequency converter (if applicable)
• Installation and operating instructions for the
signal transmitter (if applicable)
• Spare parts list (if applicable)

5.4 Accessories

Accessories must be ordered separately as
required. The accessories from the Wilo range
include the following:
• Open break tank (example in Fig. 11)
• Larger diaphragm pressure vessel (on the suction
or discharge side)
• Safety valve
• Protection against low water level and dry-run-
ning
In the case of operation with supply pressure for
systems with frequency control (COR – CC-FC
and CCe), a pressure sensor is installed on the
intake side as standard and serves as protection
against low water level! (Fig. 5c)
In the case of operation with supply pressure for
systems without frequency control (CO – CC):
• Protection against low water level (WMS) kit (at
least 1.0 bar) supplied as separate accessory
(Fig. 5a and 5b) (supplied fitted to the pressure
boosting system if part of the order)
• Float switch
• Low water warning electrodes with level control
relay
• Electrodes for tank operation (special accesso-
ries on request)
• Flexible connection pipes (Fig. 9, B)
• Compensators (Fig. 8, B)
• Threaded flanges and caps (Fig. 8 and 9, D)
• Sound-insulating unit casing (special accessories
on request)

6 Description of the product and accessories

6.1 General description

The Wilo pressure boosting system type Comfort
is supplied ready for connection as a compact unit
with built-in controls. It consists of 2 to 6 non
self-priming vertical high-pressure multistage
centrifugal pumps which are supplied completely
piped to each other and mounted on a common
Installation and operating instructions Wilo-Comfort CO(R) .. MVI ... /.. MVIS ... /.. Helix V ... /.. Helix VE ...
base frame.
The only connections that have to be made are for
the inlet and pressure pipes and the electrical
mains connection. It may also be necessary to
install the supplied accessories ordered sepa-
rately.
The pressure boosting system with non self-
priming pumps can be connected both indirectly
(Fig. 7 - system separation through a non-pres-
surised break tank) and directly (Fig. 6 -
connection without system separation) to the
water supply mains. Detailed instructions for the
pump type used can be found in the attached
installation and operating instructions for the
pump.
Observe the relevant, applicable regulations and
standards when using the system for drinking
water supply and/or fire extinguishing supply. The
system must be operated and maintained in
accordance with the relevant instructions (in
Germany according to DIN 1988 (DVGW)) so that
the operational reliability of the water supply is
permanently guaranteed and neither the public
water supply nor other consumption installa-
tions are detrimentally affected. The respective
applicable regulations or standards (see Section 4)
on the connection and type of connection to pub-
lic water supply networks must be observed. They
may be supplemented by regulations of the
water supply companies or the responsible fire
protection authority. In addition, the local condi-
tions (e.g. a supply pressure that is too high or
fluctuating considerably and which might require
the installation of a pressure reducer) must also be
observed.

6.2 Components of the pressure boosting system

The complete system is made up of various main
components. The scope of delivery includes sepa-
rate installation and operating instructions for the
relevant operating parts/components (see also
the installation plan provided).
Mechanical and hydraulic system components
(Fig. 1a, 1b, 1c, 1d, 1e, 1f):
The compact unit is mounted on a base frame
with vibration absorbers (3). It consists of a
group of 2 to 6 high-pressure multistage cen-
trifugal pumps (1), which are combined by means
of an inlet manifold pipe (4) and a pressure col-
lecting pipe (5) to form a complete system. Each
pump is fitted with a shut-off device on the
intake side (6), a shut-off device on the pressure
side (7) and a non-return valve (8) on the pres-
sure side.
The pressure collecting pipe (5) is also fitted with
an assembly that can be shut off with a pressure
sensor (12) and pressure gauge (11) as well as an
8-litre diaphragm pressure vessel (9) with a
throughflow fitting (10) that can be shut off (for
throughput according to DIN 4807, part 5) (see
also Fig. 2 and 3).
For systems with frequency control (COR – CC-FC
and CCe), the inlet collecting pipe is also fitted as
English
11