Cuenod NC29 GX207/8A [6/52] Operation

Cuenod NC29 GX207/8A [6/52] Operation
11/2009 - Art. Nr. 4200 1018 3800A6
Operation
TCG 2xx control unit
The TCG 2xx control and safety unit
controls and monitors the forced draught
burner. The microprocessor-controlled
program sequence ensures maximum
stability of time periods, regardless of
fluctuations in the power supply voltage
or the ambient temperature. The
automatic combustion control unit is
designed to cope with brownouts.
Whenever the supply voltage drops
below its rated minimum level, the
control unit shuts down - even in the
absence of a malfunction signal. The
control unit switches itself back on again
once the voltage has returned to normal
levels.
Pressing the
unlocking button on
the unit for
… causes …
... 1 second ... the control unit to
unlock.
... 2 seconds ... the control unit to
lock.
... 9 seconds ... the statistics to
be deleted
Moves the cursor upwards.
Moves the cursor downwards.
Increases the marked value.
Reduces the marked value.
Modifies/Confirms the value
shown.
Unlocks the control unit.
Red LED (flashes if a fault is
present).
Locking and unlocking
The control unit can be locked (switched
to malfunction mode) by pressing the
unlocking button and unlocked (fault
deleted), provided the unit is connected
to the mains power supply.
Always switch off the power
supply before installing or
removing the control unit. Do not
attempt to open or carry out
repairs on the control unit.
Screen Description Screen Description
Awaiting the heat request from the
boiler
Pre-ignition
Air flap is forced open for pre-
ventilation.
Gas valve is opened for pre-
ventilation
Pre-ventilation Flame stabilises, post-ignition time
Air flap closes to the ignition position
Flame is present, awaiting
authorisation of regulation

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