This Appliance Is Fitted With A Ttb; Possible Causes Of The Ttb Being Activated Include; Measures To Prevent Ttb Activation; The Ttb - Dru Alto Instructions D'installation Et Mode D'emploi

• Make sure the pilot burner and the space around it are
kept free from objects; see Photo (fig. 6).
• For a proper and safe operation of the device only use
the accompanying wood/pebble set.
NB: Incorrect placement of the pebbles, e.g. on top of
each other or densely enclose the space around the pilot
burner, could have the following consequences:
- the device will no longer operate safely;
- the flame picture will be affected.

This appliance is fitted with a TTB

The TTB is a flue spillage sensor that reacts to flue gasses
flowing past the baffle in the heater back into the living room.
In the event of a flue spillage, the thermocouple is
interrupted by the TTB, shutting off the gas supply to the
burners.
This protective device will prevent flue gasses from
flowing into the home for any length of time. The device
will reset itself after a few minutes and the heater can
then be reignited.
Possible causes of the TTB being activated
include:
• There is little or no supply of fresh air into the home
(all draughts have been excluded and ventilation openings
sealed off).
• The outlet into the flue duct is partially or completely
blocked.
• The chimney mouth was not constructed correctly, can
cause "fall winds" in the chimney duct being a possible
result.

Measures to prevent TTB activation

The heater can be reignited once the TTB has cooled
down.
If the safety device is activated again, open a window or
some other means of ventilation.
If this resolves the problem, it means that the home is
hermetically sealed and the heater is unable to discharge
all the combustion fumes through the chimney. Some
means of ventilation must be kept open or constructed.
If the safety device is still activated after that, examine the
other possible causes listed above and resolve accordingly.
The safety device may never be disconnected.
N.B.: If the flue spillage sensor is repeatedly activated, a
qualified gas installer should be contacted.

The TTB

The TTB safety device has several special components that
should also be incorporated in a replacement TTB. You
are strongly advised not to fit a "standard" thermocouple.
INSTRUCTIONS FOR USE

Type EUROSIT

The EUROSIT gas control block has the following controls:
* rotary switch with the following settings (1):
• off ( )
●
• ignition and pilot light (
• thermostat
* push button (2) to operate the piezo (
* manual control (3) for the following settings:
• on full
Adjustable between the maximum and minimum
setting of the manually operated gas tap.
• off

Operating

To ignite the pilot light turn the switch (1) to (
press fully. Turn button (2) a few times as necessary.
Once the pilot light is ignited, keep pressing the button
for approx. 10 seconds. If you release the button the pilot
light should stay alight, if not, repeat the stages above,
pressing the button for a little longer. If the thermostat
has been set to a temperature higher than the room
temperature, the main burner will ignite when the button
is released. The required temperature can be set using the
thermostat button (1).
NB: Should the thermostat demand heat it will have
priority over any manually controlled setting.
If the heater is only to be controlled manually, turn
the thermostat to the lowest setting.
If the thermostat is set to (
burn. Neither the thermostatic tap nor the manually
operated tap will work.

Switching off

To switch the heater off, turn the switch (1) to
will switch both the main burner and the pilot light off.
Switched to the pilot light setting (
will stay alight.
If the heater has been switched off, wait for 5 minutes
before relighting.
21
INSTRUCTIONS FOR USE
)
)
) and
), only the pilot light will
. This
●
) only the pilot light
Alto/Basso