Nordica TERMOROSA XXL DSA 4.0 Manual Del Usuario página 38

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 (if present ) to the highest level in order to reduce the exchange surface exposed to the heat of the ame.
2. Close the primary and secondary air registers in addition to turning the thermostat to 0 ( if present).
3. Open the Food warmer door (if present) in order to favour the elimination of the internal heat.
4. Open the ue gas register (if present ) in this way, it will deviate the residual heat still produced towards the chimney.
OpErATION IN TrANsITION pErIOds
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. THE EXHAUST GASES DO NOT COME
OUT COMPLETELY INTENSE SMELL OF GAS .
In this case, shake the grating more frequently and increase the air for the combustion. Then, load a reduced quantity of fuel in order to permit
a rapid burning (growing up of the ames) and the stabilization of the draught.
CHECK THAT ALL OPENINGS FOR THE CLEANING AND THE CONNECTIONS TO THE STACK ARE AIR TIGH.
IN cAsE Of dOuBT, dO NOT OpErATE THE prOducT.
ATTENTION: NEvEr LIGHT fOr ANy rEAsON If THE INsTALLATION Is NOT cOmpLETELy fuLL Of wATEr IN OrdEr TO
AvOId A sErIOus dAmAGE Of THE wHOLE sTrucTurE. THE INsTALLATION musT ALwAys BE fuLL Of wATEr EvEN
wHEN THE THErmO-fIrEpLAcE Is NOT usEd. A POSSIBLE NO USE DURING WINTER SEASON MUST BE FACED BY ADDING
ANTIFREEZE SUBSTANCES.
summEr usE
THE sysTEm musT BE cOmpLETELy fILLEd wITH wATEr. THE ABsENcE Of wATEr IN THE sysTEm wOuLd LEAd TO
sErIOus dAmAGE Of THE ENTIrE sTrucTurE.
ATTENTION: FOR NO REASON MUST THE FIRE BE IGNITED BEFORE THE SYSTEM HAS BEEN COMPLETELY FILLED WITH WATER; DOING THIS
WOULD LEAD TO SERIOUS DAMAGE OF THE ENTIRE STRUCTURE. In order to prevent water boiling, the circulation pump must be always
in function in order to drain on the radiators, or on the pu er, or on any other thermal absorption structure the heat given from the boiler to
the water. If the pump does not circulate or for any reason the water temperature exceeds 95°C, acts the DSA valve discharging heat in the
throughway water. IT IS RECOMMENDED TO SUPERVISE THE WATER TEMPERATURE IN THE APPLIANCE DURING SUMMER USE TO AVOID
RECURRENT INTERVENTIONS OF THE DSA VALVE WHICH MAY JEOPARDIZE ITS GOOD OPERATION.
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