Correct Use For Central Heating; No Electricity; Operation In Transition Periods - Nordica TERMOSOVRANA Anleitung

TERMOSOVRANA
The oven pan may be located on different plans. Thick cakes and big roasts must be introduced in the
lowest level.
Flat cakes and biscuits must reach the medium level. The upper level may be used to heat or grill.

12. CORRECT USE FOR CENTRAL HEATING.

To obtain the best results in using the appliance for central heating it is necessary to have a few basic
concepts clear.
The system works very well only when it has arrived at its operating regime and the pump is always in
operation; only in this condition the water coming from the system will be hot enough to avoid phenomena
of condensation within the boiler body; if, on the contrary, the system is managed at a power that is too
low, the system will tend to function intermittently.
In effect the pump will function only for short periods and only when the water exceeds 70° C but, each time
the cold water that returns from the system will have dropped the temperature below this limit, this will stop
waiting for it to return to 70° C.
During these pause periods the water of the radiators will tend to cool down returning cold to the boiler
when the pump will be able to start again.
With this method of operation the radiators will always be cold in the lower part and the lower part of the
boiler body will remain always almost cold causing condensation of the smoke and acid vapours which, in
the long run could cause its corrosion.
To avoid this serious inconvenience it will be necessary to regulate the combustion air so that the heat
generated is able to keep the pump constantly in operation; only in this way will it be possible to heat the
radiators constantly allowing hot water to return to the boiler to avoid condensation of smoke and
consequent corrosion.
To achieve this result it will be necessary to regulate the primary air shutter (door of ash chamber) to 1/3 of
its opening. The secondary air (above the door of the furnace) all open, while the knob of the thermostat
shutter placed under the door of the oven should be regulated so the water temperature in the boiler
stabilises between 70-80° C operating in the followi ng way.
If regulating the shutter to position 3 after a few hours of operation the water temperature will have not
stabilised itself allowing a continuous operation of the pump, it will be necessary to increase the opening
trying to set it at position 5.
If in position 5 the temperature arrives at 80-85° C after a short time, it will be better to bring the regulation
to position 4 because it would be excessive, if instead it stabilises between 70 and 80° C it will be ideal and
can always be kept in that position.

13. NO ELECTRICITY

If there is a sudden blackout during normal operation of the system, it will be necessary to perform these
simple actions to avoid boiling water following lack of operation of the pump.
1 Close the registers of the primary and secondary air. This blocks the entry of comburent air
completely.
2 Open the oven door to encourage dispersal of internal heat.
3 Open the smoke register pressing the knob placed on the right side of the frame; in this way the
residual heat still produced will be diverted to 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.
During transition periods when the external temperatures are higher, if there is a sudden increase of
temperature it can happen that the combustion gases inside the flue cannot be completely sucked up.
Instructions for installation, use and maintenance – EN – Rev.03 33