32
WILO SE 04/2017
English
Installing the pump Observe the following points when installing the pump:
• Note the direction arrow on the pump housing (1).
• Install without tension, with glandless pump motor
horizontal (3).
• Place gaskets in the screwed connections.
• Screw on threaded pipe unions.
• Tightly screw the pump and the pipes together.
• Insulate the pump housing (1) with the thermal insu-
lation shell (5).
• Install non-return valves.
4.2 Making the electrical connection
The electrical connection may only be made by a quali-
fied electrician.
Preparation • The current type and voltage must agree with the
specifications on the rating plate (4).
• Maximum back-up fuse: 10 A, slow-blow.
• Note switching frequency:
- Switch-on/off procedures via mains voltage
≤ 100/24 h.
- ≤ 20/h for a switching frequency of 1 minute
between switching on/off via mains voltage.
• The electrical connection must be made via a fixed
connecting cable equipped with a connector device or
Note: Install pump in the return to ensure perfect
functioning of the temperature-controlled mode.
Caution: Damage to the pump!
Insufficient heat dissipation and condensation water
may damage the control module and the glandless
pump motor.
• Do not thermally insulate the glandless pump
motor (3).
• Ensure all condensate drain openings (13) are kept
free.
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