Wilo WEH, Инструкция по установке и эксплуатации

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WILO SE 02/2014 3
English
fluids (which are explosive, toxic or hot) must be
led away so that no danger to persons or to the
environment arises. National statutory provisions
are to be complied with.
• Highly flammable materials are always to be kept
at a safe distance from the product.
• Danger from electrical current must be elimin-
ated. Local directives or general directives [e.g.
IEC, VDE etc.] and local power supply companies
must be adhered to.
2.6 Safety instructions for installation and main-
tenance work
The operator must ensure that all installation
and maintenance work is carried out by author-
ised and qualified personnel, who are sufficiently
informed from their own detailed study of the
operating instructions.
Work on the product/unit must only be carried out
when at a standstill. It is mandatory that the pro-
cedure described in the installation and operating
instructions for shutting down the product/unit
be complied with.
Immediately on conclusion of the work, all safety
and protective devices must be put back in posi-
tion and/or recommissioned.
2.7 Unauthorised modification and manufacture of
spare parts
Unauthorised modification and manufacture of
spare parts will impair the safety of the product/
personnel and will make void the manufacturer‘s
declarations regarding safety.
Modifications to the product are only permissible
after consultation with the manufacturer. Original
spare parts and accessories authorised by the
manufacturer ensure safety. The use of other
parts will absolve us of liability for consequential
events.
2.8 Improper use
The operating safety of the supplied product is
only guaranteed for conventional use in accord-
ance with Section 4 of the operating instructions.
The limit values must on no account fall under
or exceed those specified in the catalogue/data
sheet.
3. Transport and interim storage
The system is supplied on a pallet, it is protected
from moisture and dust with a transparent plastic
cover.
• The equipment must be transported by means of
authorised load devices.
ATTENTION!
The handling should be done by
skilled staff and with authorised equipment.
Transport straps must be secured to the existing
transport lugs or placed around the base frame.
The pipes will not withstand loads and should not
be used to secure loads in transit.
Any load on tank unions is prohibited.
Stickers on manifolds and tanks point out this
warning (Fig. 1).
(Fig. 1) WARNING STICKER.
Do not handle by this
component.
Do not apply load on
this component.
ATTENTION!
Loading the pipes in transit can
result in leaks.
Any load on the union can result in leaks.
ATTENTION!
If the product is installed later on,
store it in a dry place. Protect it from impacts
and any outside influences (moisture, frost, etc.).
Handle the product with care.
4. Applications
The system is designed for maintaining pressure
in a closed heating or cooling loop where variation
of temperature exists.
The system also ensures the filling of the installa-
tion. The pressure-maintaining system is supplied
from the public water mains.
5. Product data
5.1 Type key
5.2 Technical data
• Max. operating pressure maintained: 6 bars
for H
8 bars for V
• Max. water temperature: +5°C to +90°C
• Max. ambient temperature: +40°C
• Single-phase voltage: 50 Hz 230 V
• Three-phase voltage: 50 Hz 400 V
5.3 Scope of delivery
• System without tank (provided separately).
• Switchgear
• Installation instructions: pressure-boosting sys-
tem, pump and switchgear.
• Safety instructions.
5.4 Accessories (compulsory)
• Tank to size with installation data (200 l to 5000
l available).
Example: WEH-2-305-T/CE-2D
WEH
System with horizontal pump MHIL
WEV
System with vertical pump MVIL
2
Mode of system:
1 = 1 pump
2 = 1 pump + safety pump
305
Nominal flow and number of stages of each
pumps (m
3
/h):
3 m
3
/h: pump MHIL 3 or MVIL 3
T
Power supply:
T = Three-phases 400V
M = Single-phase 230V
CE
Type of automatism:
CE = Electronic controller
2D
Number of discharge valves:
Nothing = 1 discharge valve
2D = 2 discharge valves