Storage; Installation And Electrical Connection; Personnel Qualifications; Installation Types - Wilo Rexa UNI Installation And Operating Instructions Manual

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Fig. 2: Attachment point
▪ Adhere to the applicable national safety regulations.
▪ Use legally specified and approved lifting gear.
▪ Select the lifting gear based on the existing conditions
(weather, attachment point, load, etc.).
▪ Only attach the lifting gear to the attachment point. Fix
with a shackle.
▪ Use lifting equipment with sufficient bearing capacity.
▪ The stability of the lifting equipment must be ensured
during operation.
▪ When using lifting equipment, a second person must be
present to coordinate the procedure if required (e.g. if
the operator's field of vision is blocked).
5.3

Storage

DANGER
Danger due to fluids hazardous to health!
If the pump is used in fluids hazardous to health, de-
contaminate the pump after dismantling and before
carrying out any other work! There is danger to life!
Observe the specifications in the work regulations!
The operator must make sure that the personnel has
received and read the work regulations!
WARNING
Sharp edges on the impeller and suction port
Sharp edges can form on the impeller and suction
port. There is danger of limbs being cut-off! Pro-
tective gloves must be worn to protect from cuts.
CAUTION
Total damage due to moisture ingress
Moisture ingress in the power supply cable damages
the power supply cable and the pump! Never im-
merse the end of the power supply cable in a fluid
and firmly seal it during storage.
12

Installation and electrical connection

Newly supplied pumps can be stored for one year. Con-
tact customer service to store the pump for more than
one year.
The following must be observed for storage:
▪ Securely position the pump on a firm bearing surface.
Store pumps with pump support foot in an upright pos-
ition, store pumps without pump support foot in a hori-
zontal position. Secure the pump against falling over
and slipping!
▪ The max. storage temperature is -15 °C to +60 °C at a
max. relative humidity of 90 %, non-condensing.
Frost-proof storage at a temperature of 5 °C to 25 °C
with relative humidity of 40 % to 50 % is recommen-
ded.
▪ Do not store the pump in rooms in which welding work
is carried out. The resulting gases or radiation can cor-
rode the elastomer parts and coatings.
▪ Seal the suction and pressure connection tightly.
▪ Protect power supply cables against kinking and dam-
age.
▪ Protect the pump from direct sunlight and heat. Ex-
treme heat can cause damage to the impellers and the
coating!
▪ Impellers must be turned by 180 ° at regular intervals
(3 – 6 months). This prevents jamming of the bearings
and renews the lubrication film of the mechanical seal.
WARNING! There is a risk of injury due to edges on
the impeller and suction port!
▪ 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: Electrical work must be carried out by a
qualified electrician (in accordance with EN 50110-1).
▪ Installation-/dismantling: The technician must be
trained in the use of the necessary tools and mounting
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 sup-
port foot
The following installation types are not allowed:
WILO SE 2017-03

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