Oven Use; Correct Use For Central Heating; Electrical Power Supply Failure; Operation In Transition Periods - LA NORDICA TermoSuprema Compact DSA Instructions For Installation, Use And Maintenance Manual

11. OVEN USE

After having cleaned the furnace grill, load the fuel. Thanks to the supply of air for combustion, the oven temperature
can be influenced slightly. Sufficient chimney draught and very clean channels for the flow of scorching flue gas
around the oven are essential for a good cooking result. The flue gas register must be completely drawn towards the
front of the thermocooker.
The oven pan can be placed on various levels. Thick cakes and large roasts should be inserted at the lowest level.
Thin cakes and biscuits go on a medium level. The highest level can be used for heating or browning.
The thermocooker is equipped with a cast iron furnace grill which can be removed using a specific handle. The upper
position optimises the use of the hotplate while the lower one optimises water and oven heating.

12. CORRECT USE FOR CENTRAL HEATING.

To get the best results when using the appliance for central heating, it is necessary to clarify some basic concepts.
The system will only work very well when it arrives at full speed and the pump is always moving; only in this
condition, in fact, will the water coming from the system be hot enough to prevent condensation phenomena inside
the boiler body. If, on the other hand, the system is managed at a power which is too low, the system will tend to
operate in an intermittent way.
In practice, the pump will only operate for brief periods and only when the water exceeds 70° C but, ea ch time the cold
water which returns to the system brings the temperature under this limit, the pump stops, waiting for it to return to 70°
C.
During these pauses, the water in the radiators tends to cool down, in turn becoming cold in the boiler when the pump
is able to start again.
With this operating mode, the radiators will always be cold at the bottom and the lower part of the boiler body will also
remain almost cold, allowing the condensation of flue gases and acidic vapours which, in the long term could cause
corrosion.
To avoid this serious inconvenience, it will be necessary to regulate the combustion air so that the heat generated is
capable of keeping the pump operating constantly; only in this way will it be possible to heat the radiators evenly,
causing a return of hot water to the boiler which is enough to prevent condensation of flue gases and consequent
corrosion.
To obtain this result, it is necessary to regulate the primary air damper (Picture 1 pos.A) to 1/3 opening, The
secondary air (Picture 1 pos.B) completely open, while the thermostatic damper handle (Automatic thermostat Picture
1 pos.C) must be regulated so that the temperature of the water in the boiler stabilises at between 70 – 80 ° C
operating as follows.
If, regulating the damper to position 3, the water temperature has still not stabilised allowing continuous pump
operation after a couple of hours operating, it is necessary to increase the opening, attempting to set it to position 5.
If, after a short while in position 5, the temperature reaches 80 – 85° C, it is advisable to regulate it to position 4 as that
would be excessive. If, on the other hand, it stabilises at between 70 – 80° C, this is the correct pos ition and should be
left as such.

13. ELECTRICAL POWER SUPPLY FAILURE

In the event of an unexpected electrical power supply failure during normal system operation, it will be necessary to
carry out these simple manoeuvres to prevent the water in the boiler starting to boil as a consequence of the lack of
pump operation.
1 Raise the moveable furnace grill to the highest level in order to reduce the exchange surface exposed to the heat
of the flame.
2 Close the primary and secondary air registers in addition to turning the thermostat knob placed on the right hand
side at the back of the thermocooker to 0, in order to block the intake of comburent air completely.
3 Open the oven door in order to favour the elimination of the internal heat.
4 Open the flue gas register by pushing the knob placed on the right hand side of the frame; in this way, it will
deviate the residual heat still produced towards the chimney.

14. OPERATION IN TRANSITION PERIODS

WARNING: For no reason turn on the fire before the system has been completely filled with water; doing so
could cause serious damage to the entire structure. The system should be kept constantly full of
water even in periods in which the use of the wood burning stove/cooker is not required. During winter
any non activity should involve the addition of anti- freeze.
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Thermocooker – TERMOSUPREMA Compact DSA
Instructions for installation, use and maintenance – EN – Rev.01