Installation and electrical connection
en
Installation and operating instructions Wilo-Padus UNI
31
6.4
Installation
DANGER
Risk of fatal injury due to dangerous lone
working practices!
Work in chambers and narrow rooms as well as work
involving risk of falling are dangerous work. Such
work may not be carried out autonomously!
• Only carry out work with another person!
ƒ
Wear protective equipment! Observe the work regulations.
–
Protective gloves: 4X42C (uvex C500)
–
Safety shoes: Protection class S1 (uvex 1 sport S1)
–
Safety helmet: EN 397 Conforms to standards, protection
against lateral deformation (uvex pheos)
(When using lifting equipment)
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Prepare the installation site:
–
Clean, free of coarse solids
–
Dry
–
Frost-free
–
Disinfected
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Toxic or asphyxiating gases may build up during work:
–
Observe protective measures in accordance with work regu-
lations (gas measurement, carry a gas detector with you).
–
Ensure adequate ventilation.
–
If toxic or asphyxiating gases accumulate, leave the work-
place immediately!
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Always carry the pump by the handle!
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Install lifting equipment: even surface, clean, firm base. Ware-
house and installation location must be easily accessible.
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Attach chain or wire rope to handle/attachment point with a
shackle. Only use lifting gear that has been technically ap-
proved.
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All connection cables must be laid properly. The connection
cables must not pose any risk (i.e. tripping, damage during op-
eration). Check whether the cable cross-section and the cable
length are sufficient for the selected installation type.
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Installation of switchgear: Observe information in the manu-
facturer’s instructions (IP class, overflow-proof, potentially ex-
plosive atmospheres)!
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Avoid air intake into the fluid. Use baffles or deflector plates at
the inlet. Install the ventilation systems!
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Do not allow the pump to run dry! Avoid air pockets. Do not go
below the minimum water level. Installation of dry-running
protection is recommended!
6.4.1
Maintenance tasks
After a storage period of more than 12 months, carry out the fol-
lowing maintenance tasks before installation:
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Check the oil in the sealing chamber and replace it if necessary.
See section “Oil change in sealing chamber [
}
39]”.
6.4.2
Portable wet well installation
For safe positioning, the pump is equipped with a strainer. This
means that the pump can be positioned anywhere at the place of
use. The strainer filters coarse solids out of the fluid. A pressure
hose is connected on the pressure side.
Use a hard surface or underlay at the place of use to prevent sink-
ing on a soft bearing surface.
UNI ...
UNI ... B/ ...
UNI ... K/ ...
OFF!
OFF!
S1
S2, S3
S1
S1
1
2
3
4
Fig. 3:
Wet well installation, portable
1
Lifting equipment
2
Handle/attachment point
3
Pressure hose
4
Hose connection:
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Hose nozzle with threaded connection and hose clip
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Storz pipe coupling
S…
Operating mode at the respective water level
OFF
Min. water level. Switch off the pump.
‡
Place of use prepared.
‡
Pressure connection prepared: Hose connection or Storz
coupling fitted.
‡
Soft bearing surface: solid surface available.
‡
The pump can be secured against moving away and fall-
ing over.
1. If lifting equipment is used: Use a shackle to attach the
lifting equipment to the attachment point on the pump.
2. Lift and align the pump at the installation location.
3. Place the pump on a firm bearing surface. Avoid sinking!
4. Lay the pressure hose and fasten it properly at the ap-
propriate place (e.g. drainage).
5. Correctly route the connection cables.
CAUTION! Do not
damage the connection cables!
- No chafing or kinking.
- Do not immerse the cable end in the fluid.
- Observe the bending radii.
▶ Pump installed, make the electrical connection.
