Installation and operating instructions Wilo-Para 41
en
• Align the upper shut-off device laterally.
• When installing in the feed of open systems, the
safety supply must branch off upstream of the
pump (EN 12828).
• Complete all welding and brazing work.
• Flush the pipe system.
• Do not use the pump to flush the pipe system.
Installing the pump Observe the following points when installing the pump:
• Note the direction arrow on the pump housing (1).
• Install glandless motor (2) horizontally, without
mechanical tension.
• Place gaskets in the screwed connections.
• Screw on threaded pipe unions.
• Use an open-end wrench to secure the pump against
twisting and screw tightly to piping.
• Re-mount the thermal insulation shell if required.
CAUTION!
Leaking water may damage the control module.
• Align the upper shut-off device so that leaking
water cannot drip onto the control module (5).
• If the control module is sprayed with liquid, the sur-
face must be dried off.
1
2
3
CAUTION!
Insufficient heat dissipation and condensation water
may damage the control module and the glandless
motor.
• Do not thermally insulate the glandless motor (2).
• Ensure all condensate drain openings (3) are kept
free.
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