Installation Instructions

28 | Commissioning
SB625WS/SB745WS6 720 805 218 (2016/02)
6.4 Making the electrical connection
▶ Knock out or cut out the appropriate parts from the back panel
( Fig. 28, [1]) as required.
▶ Route all cables and leads for connecting the temperature sensors
and safety equipment via the cable conduit to the back of the control
unit.
▶ Route all on-site cables to the control unit.
▶ Route sensor leads separately from other electrical cables.
Fig. 27 Cable conduit at the control unit
[1] Control unit
[2] Cable conduit
[3] Sensor well
▶ Make the plug-in connection in the control unit in accordance with
the labelling on the terminal strip.
▶ Make on-site electrical connections to the appropriate plug-in
connections according to the connection diagram (control unit
documentation).
Fig. 28 Preparing the cable entry
[1] Back panel section (Logamatic 4000)
DANGER: Danger to life through electric shock!
▶ Before opening the boiler, isolate the heating system
across all life phases and secure against
unintentional reconnection.
▶ Carefully route the cables/leads and capillary tubes.
▶ Ensure that capillaries are never kinked.
▶ Only carry out electrical work if you are a competent
person. If you are not suitably qualified, arrange for a
qualified electrician to make the electrical
connections.
▶ Observe local installation regulations.
▶ Create all electrical connections in accordance with
National Electrical Code, Canadian Electrical Code or
the applicable and local regulations.
NOTICE:
The phase-neutral polarity has been respected.
A ground (earth) connection is obligatory.
The locations of terminal strips on Logamatic control
units are not identical. The terminal strip is easy to
identify after the Logamatic control unit has been
opened.
The labelling of the terminal strip in the various control
units is identical.
Wiring diagrams related to the burner installation may be
found in the burner installation manual.
6 720 805 218-60.1T
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6 720 648 053-21.1T
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