Operation in the event of a fault
11
Logamatic 4323 - Subject to technical modifications.
75
11.2 Heating with manual override
In most cases, faults are displayed on the MEC2 if they
concern the control unit.
Please notify your installer of the fault displayed on the
MEC. Your installer can provide rapid assistance in
remedying these faults using the information you
provide.
If you cannot immediately contact your installer, you
may choose to select manual mode using the manual
switch.
Manual mode Logamatic 4323 (ZM433 central
module)
Before making any adjustments for manual mode, check
the settings on the various modules for possible
incorrect settings. If the control system indicates a fault
you may temporarily run your heating system manually.
z Switch on the control unit via the ON/OFF switch.
z Set feed circuit (Æ Fig. 26, [1]) via selector
to manual 3.
z
Set heating circuit (
Æ
Fig. 26, [2]) at selector
to manual
3
.
In case of faults, immediately notify your installer who
will provide a professional service. Inform your installer
of the fault message displayed on
the MEC2.
Manually de-couple the heating circuit mixer and
position towards hotter or colder, until the required
room
temperature has been achieved.
Fig. 26 ZM433 central module
1 Manual feed circuit switch
2 Manual switch – heating circuit 0
USER NOTE
To prevent insufficient supply, check that
the external heat generator can deliver
sufficient heating energy, before operating
the feed pump manually.
USER NOTE
To ensure operational reliability, mixer
circuits must not be fully closed.
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