Electrical Connection - Wilo Rain System AF Basic Notice De Montage Et De Mise En Service

English
floating extractor with suction filter in conjunc-
tion with a flexible suction line.
Connection on the pressure side
All connection lines shall be installed in the rain-
water utilization system without tension, using
detachable connections. The weight of the con-
nection lines must be secured to the structure
using suitable attachment devices.
WARNING! Health hazard!
Affix notice plates, symbols and designations
according to the valid standards. All places of
use must be clearly visible and must have the
warning symbol "Not drinking water!".
For safety reasons, only outlet fittings should be
used to prevent opening by unauthorised per-
sons.
Float switch (fig. 1, item 2 and fig. 5, item 2)
Lead the mains connection cable and the cable
from the float switch through the provided open-
ing on the reverse of the base frame in the rainwa-
ter utilisation system.
The float switch must be connected with the con-
nections of the RCB switchgear (fig. 3, S1). To do
so, guide the float switch connection cable into
the RCB switchgear through the screwed connec-
tions or use an optional plug connection
Position the attachment points of the float switch
cable in the cistern in such a way as to ensure the
dimensions shown in fig. 6.
NOTE: The length of the free cable between the
attachment point or a weight and the float switch
determines the switching level for recognition of
"Cistern empty"/"Cistern full" (fig. 6). The length
of the free cable must be at least 100 mm. The
cable can be fixed to a fixed point inside the cis-
tern or a weight using a cable tie. Please note:
When using a weight, this weight must be
installed before laying the cable
NOTE: The float switch must be at least 100 mm
above the foot valve. The cable must be able to
move freely to ensure that no air or particles can
be sucked in from the sedimentation zone if the
water level reaches the minimum level.
CAUTION! Risk of damage to the product!!
The cable from the float switch to the cistern
must be protected from damage. We recom-
mend you also install a protective pipe. Make
sure that cable has a loose fit and is not stuck or
tangled up.
Overflow (fig. 1, item 11 and fig. 5, item 19)
Connect the overflow of the replenishment reser-
voir in such a way as to allow overflowing water to
flow freely. Attach a suitable funnel (fig. 1,
item 11) to the discharge line to catch/feed the
water overflow.
18
NOTE: To secure the rainwater utilisation system
against a potential back-pressure, the clearance
between the lower edge of the overflow pipe and
a funnel (fig. 5, item 11) or discharge line must be
at least 100 mm. The overflow must not be con-
nected directly to the drainage!

7.2 Electrical connection

DANGER! Risk of fatal injury!
Electrical connection must be carried out by an
electrician authorised by the local electricity
supply companies (EVU), and in accordance with
the applicable local regulations [e.g. VDE regula-
tions].
We recommend the provision of a residual cur-
rent circuit-breaker (RCCB).
Damaged cables are to be replaced by service
technicians.
• Current type and mains voltage must match the
specifications on the rating plate.
• Protection on mains side by 10 or 16 A, slow-blow
fuses
• Fuse protection in RCB switchgear: 8 A, slow-blow
(fuse 5x20)
• (there is an alternative earthing option on the
pump motor (PE designation).)
DANGER! Risk of fatal injury!
Since the mains outlet is the main switch for the
system, for safety reasons it must be accessible
at all times.
WILO SE 11/2010