Installation And Electrical Connection; Personnel Qualifications; Installation Types; Operator Responsibilities - Wilo Rexa UNI Einbau- Und Betriebsanleitung

▪ Elastomer parts and the coating are subject to natural
brittleness. Contact customer service if the pump must
be stored for more than 6 months.
After storage, remove any dust and oil from the pump
and check the coating for damage. Repair damaged
coatings before further use.
6

Installation and electrical connection

6.1

Personnel qualifications

▪ Electrical work: A qualified electrician must carry out the
electrical work.
▪ Installation/dismantling: The technician must be trained
in the use of the necessary tools and fixation materials
for the relevant construction site.
6.2

Installation types

▪ Vertical stationary wet well installation with suspension
unit
▪ Vertical portable wet well installation with pump support
foot
The following installation types are not permitted:
▪ Dry well installation
▪ Horizontal installation
6.3

Operator responsibilities

▪ Observe locally applicable accident prevention and
safety regulations of trade associations.
▪ Observe all regulations for working with heavy loads and
under suspended loads.
▪ Provide protective equipment and ensure that the pro-
tective equipment is worn by personnel.
▪ Observe local sewage technology regulations for the op-
eration of sewage systems.
▪ Avoid pressure surges!
Pressure surges can occur in long pressure pipes with
steep terrain. These pressure surges can lead to the de-
struction of the pump!
▪ Ensure the cooling time of the motor depending on the
operating conditions and the size of the pump chamber.
▪ Structural components and foundations must be of suf-
ficient stability in order to allow the device to be fixed
securely and functionally. The operator is responsible for
the provision and suitability of the structural compo-
nent/foundation!
▪ Check that the available consulting documents (installa-
tion plans, design of the operating space, inflow condi-
tions) are complete and correct.
Installation and operating instructions Wilo-Rexa UNI
Installation and electrical connection
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! A second
person must be present for safety reasons.
WARNING
Hand and foot injuries due to lack of protect-
ive equipment!
Danger of (serious) injuries during work. Wear the fol-
lowing protective equipment:
• Safety gloves for protection against cuts
• Safety shoes
• Safety helmet must be worn if lifting equipment
are used!
NOTICE
Use only properly functioning lifting equip-
ment!
Use only properly functioning lifting equipment to lift
and lower the pump. Ensure that the pump does not
become jammed during lifting and lowering. Do not
exceed the maximum bearing capacity of the lifting
equipment! Check that lifting equipment is function-
ing properly before use!
NOTICE
Emerging of the motor during operation
If the motor emerges during operation, observe the
instructions for "non-immersed operating mode"! To
ensure the necessary cooling of the motor for con-
tinuous duty, the motor must be completely im-
mersed before re-activation!
▪ Prepare operating space/installation location as follows:
– Clean, free of coarse solids
– Dry well
– Frost-free
– Decontaminated
▪ Take immediate countermeasures if there is a build-up
of toxic or suffocating gases!
▪ Use the handle for lifting, lowering and transporting the
pump. Never carry or drag the pump by the power supply
cable!
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