6
Installation and electrical con-
nection
6.1
Personnel qualifications
6.2
Installation methods
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID
Installation and electrical connection
WARNING
Sharp edges on the impeller and suction port!
Sharp edges can form on the impeller and suction port. There is a danger of limbs being
severed! Protective gloves must be worn against cutting injuries.
CAUTION
Total loss due to moisture penetration
Moisture penetration in the power supply cable damages the power supply cable and the
pump! Never immerse the end of the power supply cable in a liquid and tightly seal during
storage.
Newly delivered pumps can be stored for a year. Regarding storage for more than one year
contact customer service.
Observe the following points regarding storage:
▪ Place the pump upright (vertical) on a firm bearing surface and secure it against slipping
and falling over!
▪ The max. storage temperature is -15 °C to +60 °C (5 °F to 140 °F) at a max. relative humidity
of 90 %, non-condensing. Frost-proof storage at a temperature of 5 °C to 25 °C (41 °F to
77 °F) with relative humidity of 40 % to 50 % is recommended.
▪ Do not store the pumps in rooms in which welding works are carried out. The resulting gases
or radiations could corrode the elastomer parts and coatings.
▪ Tightly seal suction and pressure connection.
▪ Protect power supply cable against kinking and damage.
▪ Protect pump from direct sunlight and heat. Extreme heat may lead to damage to the im-
pellers and coating!
▪ Rotate the impellers by 180° at regular intervals (3 – 6 months). This prevents jamming of
the bearings and it renews the film of lubrication on the mechanical seal. WARNING! There
is a danger of injury due to sharp edges on the impeller and suction port!
▪ The elastomer parts and coatings become brittle over time. When stored for more than
6 months, customer service must be consulted.
Following storage, clean the dust and oil from the pump and check the coating for damage.
Repair damaged coatings before further use.
▪ Electrical work: A qualified electrician must carry out the electrical work.
▪ Installation-/dismantling work: The technician must be trained to handle the necessary tools
and required fastening materials for the present building site.
▪ Vertical stationary wet well installation
▪ Vertical portable wet well installation
▪ Vertical stationary dry well installation
The installation types are dependent on the motor type:
Motor type
Stationary wet
•
T 12 ... T 17
•
T 20.1
•
T 20 ... T 24
•
T 30 ... T 34
•
T 42 ... T 72
Key: – = not possible, o = possible on order by order basis, • = possible
Portable wet
Stationary dry
•
•
•
•
o
o
–
o
–
–
en-US
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