Wilo Comfort-Vario COR-1***-GE Series, Инструкция по установке и эксплуатации

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English
22 WILO SE 11/2020
WARNING! Contaminated drinking water is a
health hazard!
Flushing the pipes and system reduces the risk
of the drinking water quality being impaired!
The water must be replaced after a long system
standstill!
Once the system has been delivered, install it in
the intended installation location as soon as
possible.
Always flush the system.
The installation of a T-connector on the consumer
side of the system (if there is a diaphragm pressure
vessel on the end pressure side, immediately
downstream of it) upstream of the next shut-off
device is recommended for the simple flushing of
the system. Its branch, which is provided with a
shut-off device, is used to drain into the waste
water system during the flushing process and
must be dimensioned for the maximum volume
flow of the pump (Fig. 6a and 6b). If it is not
possible to achieve free drainage, such as when
connecting a hose, the requirements of
DIN 1988 T5 must be observed.
7.2.4 Protection against dry running/low water level
(accessories)
Fitting dry-running protection:
• In the event of a direct connection to the public
water supply network: For SiBoost Smart 1
HELIX VE…/MVISE... and COR-1 MVIE…GE type
systems, a kit with a pressure sensor that
monitors the input pressure and forwards it to
the pump’s control device as a current signal is
installed on the suction side. No additional
accessories are necessary!
For COR-1 MHIE…GE and SiBoost Smart 1 HELIX
VE…EM2 type systems, screw in the low-water
protection device (WMS) on one of the
connection ports provided for that purpose into
the suction line (in the case of retrofitting) or on
the drainage connection of the pump (HELIX VE)
and seal it (Fig. 5a). Additionally use the WMS
connection kit for CO-1... for this purpose. For
MHIE pumps, the WMS kit is installed on the
suction side as shown in the figure (Fig. 5b).
Establish the electrical connection in
accordance with the installation and operating
instructions for the pump and in accordance
with the installation and operating instructions
and circuit diagram for the control device.
• For COR/T-1 type systems, a float switch is
installed in the tank as a low-water signal
transmitter and completely wired to the pump’s
frequency converter. No additional accessories
are necessary!
• In the event of an indirect connection using
a Wilo break tank, a float switch for level
monitoring is provided as standard as a means of
dry-running protection. Establish the electrical
connection to the control device of the system
in accordance with the installation and
operating instructions and circuit diagram for
the control device. Observe the installation and
operating instructions of the break tank.
• In the event of an indirect connection, i.e. for
operation with tanks provided by the customer:
Install the float switch in the tank so that the
“low water” switching signal is transmitted if the
water level drops to approximately 100 mm
above the draw-off connection. Establish the
electrical connection in accordance with the
installation and operating instructions for the
pump and in accordance with the installation
and operating instructions and circuit diagram
for the control device.
• Alternative: You can use a level controller and
install three submersible electrodes in the break
tank. Arrange them as follows:
Position the first electrode as an earth electrode
just above the base of the tank (must always be
submerged), for the lower switching level (low
water).
Position the second electrode approximately
100 mm above the draw-off connection. For the
upper switching level (low water rescinded),
place the third electrode at least 150 mm above
the lower electrode.
Establish the electrical connection between the
level control device and the frequency converter
of the pump or control device in accordance
with the installation and operating instructions
and circuit diagram for the level control device
and for the pump or control device.
7.2.5 Main switch (accessories)
A manually operated main switch (16) which
is optionally part of the scope of delivery
(for systems from the COR-1…GE-
HS and
SiBoost Smart 1… HS series) is used to connect
and disconnect the electrical power supply for
maintenance work on the pump or other
components which need to be temporarily taken
out of service.
7.2.6 Diaphragm pressure vessel (accessories)
For transportation and hygiene reasons, the
(8-litre) diaphragm pressure vessel which is part
of scope of delivery of the pressure-boosting
system may be delivered unmounted as an
accessories kit in the box (Fig. 9a and 9b-42).
Install the diaphragm pressure vessel (9) on the
throughflow fitting (10) prior to commissioning
(Fig. 2a and 3).