THERMOROSSI BOSKY 25, Installation, User & Service Manual

Page: 49 / 76

5.2 LIGHTING AND STARTING THE CENTRAL HEATING COOKERS
Before using the central heating cooker make sure that all the movable parts are in
position; also remove any labels and stickers from the glass to avoid having
permanent traces remain on the surfaces. Verify that the hydraulic and electric
connections have been made perfectly.
REMOVE THE PROTECTIVE ADHESIVE FILM FROM THE COOKTOP.
To start the central heating cooker firstly activate the starter by lifting the pin until it hooks onto the
plate by means of the groove on it (see fig.above and on page
F - 9 ; use the tool provided). Leave
the adjustment ring I - 14 open . Now make a small fire using paper or cardboard together with wood
chips or small pieces of wood, and keep adding bigger pieces of wood as the fire gets going. When
the combustion is well underway, turn the starter
F - 9 to the home position and close the adjustment
ring I - 14.
CAUTION: DO NOT FORGET TO CLOSE THE ADJUSTMENT RING! IF IT IS LEFT
OPEN THERE IS A SERIOUS RISK OF THE BOILER OVERHEATING AND
SUBSEQUENTLY DAMAGING THE BOILER ITSELF. THIS DAMAGE IS NOT
COVERED BY WARRANTY AS IT WOULD BE THE RESULT OF NEGLIGENCE BY THE
USER. IF THE STARTER IS LEFT OPEN THE RESULT IS LESS HEAT TRANSFER TO THE
WATER IN THE CENTRAL HEATING COOKER AS THE ADDITIONAL HEAT EXCHANGER IS
NOT UTILISED.
5.3 OPERATION OF THE CENTRAL HEATING COOKERS
It must be noted the temperature gauge on the oven door reads 20c less than the interior
temperature of the oven and when the door has been opened it might drop, but this does not
reflect the interior temperature which regains its temperature quicker than the thermometer
Once the heater has been lit and started, the combustion can be increased or reduced by acting on
the automatic combustion air thermostat adjustment knob to adapt the central heating cooker to your
heating or cooking needs. The heating pump starts up as soon as the anti-condensation thermostat
calibrated at 60°C gives the start signal to the plant circulating pump.
The maximum thermal value is achieved by using fuel having a diameter of 5-7 cm , obviously bigger
pieces can be used but at the expense of less power. To rekindle the fire move the grate to
the lowest position. Move the handle (O) forward and backward several times: this will free
the grate slots of the combustion ash.
CAUTION : The wood load must always be suitable for the actual thermal absorption requirements of
the plant. Large firewood loads in limited absorption conditions result in the unburnt wood remaining
in the fIrebox for long periods of time. This situation encourages the distillation of the wood resulting
in the formation of large quantities of gases and vapours that are only partially burned. The gases
condense in the central heating cooker and in the tubes and create tarry deposits.