Controls and MEC2 programming unit
5
Logamatic 4211 - Subject to technical modifications.
16
5.3 Switching on the control unit
z Check that the control unit ON/OFF switch
(Æ Fig. 8, [1]) and the switches on the fitted modules
(Æ Fig. 8, [2]) are set to "I" and "AUT".
z Switch the control unit ON by setting the ON/OFF
switch to "I" (Æ Fig. 8, [1]).
After approximately 2 minutes all modules fitted to the
control unit are recognised, and the standard display is
shown.
5.4 Switching off the control unit
z Switch the control unit OFF by setting the ON/OFF
switch to "0" (Æ Fig. 8, [1]).
z When there is a risk: Isolate the heating system from
the mains supply with the emergency stop switch
upstream of the boiler room, or by removing the main
fuse.
Fig. 8 ON/OFF switch
1 ON/OFF switch
2 Switch on the module
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