Wilo Rexa PRO Series, Инструкция по установке и эксплуатации

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20 WILO SE 2015-07 V05 Letter
US English INSTALLATION
Fig. 3.: Portable installation
1 Lifting gear 5 Storz hose coupling
2 Pump foot 6 Pressure hose
3
Pipe elbow for hose
connection or Storz pipe
coupling
7a Min. water level for im-
mersed operation
4 Storz pipe coupling 7b Min. water level for non-
immersed operation
Work steps
1. Preparing pumps: about 1 h
• Install the pump foot on the suction connection.
• Install the pipe elbow on the pressure connection.
• Fasten the pressure hose to the pipe elbow with
a hose clip.
Alternatively, a Storz pipe coupling can be
installed on the pipe elbow and a Storz hose cou -
pling can be installed on the pressure hose.
2. Installing the pump: about 1-2 h
• Position pump in installation location. If neces-
sary, secure lifting equipment to the pump with
a shackle, lift the pump, and then lower to the
intended location (sump, pit).
• Check that the pump is vertical and on a solid
bearing surface. Avoid sinking.
• Route the power supply cable so it cannot be
damaged.
• Have the electrical connections made by a quali-
fied electrician.
• Route the pressure hose so that it is not damaged
and fasten it at certain points (e.g. outflow).
DANGER: risk of pressure hose becoming sepa-
rated!
Uncontrolled separation or movement of the
pressure hose can result in injuries. Secure the
pressure hose appropriately. Prevent buckling of
the pressure hose.
3. Starting up the pump: about 1-3 h
• As described in the “Commissioning” section
5.3.4. Stationary dry well installation
In this installation type, the operating space is di-
vided into a collector tank and a machine room. The
fluid is collected in the collector tank and the pump
is installed in the machine room. The operating
space must be prepared according to the manufac-
turer's configuration or planning guide. The pump
is connected to the pipe system on the suction and
pressure sides at the specified point in the machine
room. The pump itself is not immersed in the fluid.
The pipe system on the suction and pressure sides
must be self-supporting, i.e. it may not be sup-
ported by the pump. In addition, the pump connec-
tion to the pipe system must be free of stress and
vibrations. We therefore recommend using elastic
connection pieces (expansion joints).
The following operating parameters must be ob-
served for dry well installation.
• The max. fluid temperature and ambient tempera -
ture is 104 °F (40 °C) .
• Specifications for “non-immersed operating mode”
The pump is not self-priming, so the hydraulics
housing must be completely filled with the fluid.
The minimum level in the collector tank must
be at the same height as the upper edge of the
hydraulics housing.
CAUTION: beware of burns!
The housing parts can heat up to well above
104 °F (40 °C). There is a risk of burns! After
switching it off, let the pump cool down to am-
bient temperature.
Fig. 4.: Stationary dry well installation
1 Collector tank 5 Expansion joint
2 Machine room 6 Pump
3 Gate valve 7 Min. water level
4 Non-return valve 8 Dry-running protection
Work steps
1. Installing the pump: about 3-5 h
• Check that the pipe system is secured firmly.
• Secure lifting equipment to the pump with a
shackle, lift the pump, and then lower slowly on
to the pipe system.
• When lowering the pump, be mindful of the
power supply cables.
• When the pump is resting on the piping, fasten
the pump to the pipe system on the suction and
pressure sides.
• Route the power supply cables in accordance with
local requirements.
• Have the electrical connections made by a quali-
fied electrician.
2. Install optional accessories, such as dry-running
protection or level controls.
3. Starting up the pump: about 2-4 h
• As described in the “Commissioning” section
• Open slide valves on suction and pressure sides.
• Vent the pressure pipe.
5.3.5. Level control
Level control can be used to detect fluid levels and
to switch the pump on and off automatically. The
fluid levels can be recorded using float switches,
pressure and ultrasound measurements, or elec-
trodes.
Note the following:
• When using float switches, ensure that they can
move freely in the operating area.
• The water level must not fall below the minimum.