Wilo 22 DM, Installation And Operating Instructions Manual

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Installation and operating instructions Wilo-Protect-Modul C 21
English
• SSM: Programmable fault signal, potential-free normally closed contact, maxi-
mum contact capacity 250 VAC, 1 A.
A serial interface is provided for integrated dual pump management:
• DP: Interface for integrated dual pump management, the connection terminals
cannot be twisted. The connection cable (2 x 0/75 mm
2
) must be provided on
site. Wiring for all Protect-Modules is shown in the example in figure 3e.
8 Commissioning
CAUTION! Danger of damage to Protect-Module C
When commissioning, the Installation and operating instructions of the
glandless circulation pump, types TOP-S/-SD/-STG/-STGD/-Z must be
observed.
NOTE: Rotation control (only for three-phase motors)
In pumps with three-phase connection, before final tightening of the module
installation, it is essential to check the direction of rotation with the direction of
rotation control lamp in the pump terminal box (figures 3c, 3d, position 1).
• When the Protect-Module C is fully installed, switch on power supply.
9 Maintenance
Maintenance and repair work must only be carried out by professionally
qualified personnel.
WARNING! Danger of electric shock
Potential dangers from electrical currents must be eliminated.
During all maintenance and repair work, the pump must be disconnected from
the power supply and secured against possible unauthorised reconnection.
10 Faults, causes and remedies
see paragraph 6.2
If an operating fault of the pump / the Protect-Module C / system cannot be
corrected, please consult a professional technician or contact your nearest
Wilo Customer Service point or representative.
11 Spare parts
Spare parts may be ordered through local professional technicians and/or Wilo
Customer Service.
To avoid queries and order errors, all data on the rating plate must be given
along with every order.
Subject to technical changes!