Noise - Wilo Comfort Co R-Mvi Serie Manual Del Usuario

or CCe), the pressure sensor on the intake side
monitors the supply pressure and transmits this as
a current signal to the control device. If the supply
pressure is too low, the system detects a fault and
the pumps are stopped. (For a more detailed
description, see the installation and operating
instructions for the control device).
For systems without frequency control (CO – CC),
various kits are offered as accessories for direct
connection to the public water mains as protec-
tion against low water level (WMS) (14) (Fig. 5a
and 5b). Each kit incorporates a built-in pressure
switch (22). This pressure switch monitors the
supply pressure and if the pressure is low it sends
a switching signal to the control device.
An installation point for this purpose is provided as
standard at the inlet collecting pipe.
In the case of an indirect connection (system sep-
aration by non-pressurised break tank), a level-
dependent signal transmitter must be provided
and installed in the break tank as a dry-running
protection device. If a Wilo break tank is installed
0.37
1 pump
2 pumps
3 pumps
4 pumps
5 pumps
6 pumps
(*) Values for 50 Hz (fixed speed) with tolerance of +3 dB(A)
Lpa = workplace-related emission level in dB(A)
In the following overview, pumps of the standard
series MVIE/Helix VE up to a maximum motor
1 pump
2 pumps
3 pumps
4 pumps
5 pumps
6 pumps
(*) Values for 60 Hz (variable speed) with tolerance of +3 dB(A)
Lpa = workplace-related emission level in dB(A)
Installation and operating instructions Wilo-Comfort CO(R) .. MVI ... /.. MVIS ... /.. Helix V ... /.. Helix VE ...
0.55 0.75
56 57 58
59 60 61
61 62 63
62 63 64
64 65 66
65 66 67
1.1 2.2
70 70
73 73
75 75
76 76
71 75
(as in Fig. 11), a float switch is included in the
scope of delivery (see Fig. 12).
For existing on-site tanks, you will find various
signal transmitters in the Wilo range that can be
retrofitted (e.g. float switch WA65 or low water
warning electrodes with level relay).
WARNING! Health hazard!
Use only materials that do not adversely affect
the quality of the water for drinking water sys-
tems!

6.4 Noise

Pressure boosting systems are supplied with dif-
ferent pump types and a variable number of
pumps, as described in Chapter 5.1. No specific
overall noise level can therefore be listed here for
all variants of pressure boosting systems.
In the following overview, pumps of the standard
series MVI/Helix V up to a maximum motor power
of 7.5 kW are taken into account without fre-
quency converter:
Rated power (kW)
1.1 1.5 2.2
59 60 63
62 63 66
64 65 68
65 66 69
67 68 71
68 69 72
power of 7.5 kW are taken into account with fre-
quency converter:
Rated power (kW)
4
71
74
76
77
80
LWA=92dB(A)
81
LWA=92dB(A)
English
3 4 5.5
66 68 70
70 71 73
72 73 75
73 74 76
75 76 78
76 77 79
5.5 7.5
72 72
75 75
77 77
78 78
82 82
LWA=93dB(A) LWA=93dB(A)
83 83
LWA=94dB(A) LWA=94dB(A)
7.5
70
73
75
76
78
79
13