LA NORDICA Monoblocco 900 Piano Manuel Utilisateur page 29

MAINTENANCE OF THE ExTENSIBLE GUIDES
To work silently, as well as in a reliable and robust way, the doors are fastened to the extensible ball guides. By using the device
continuously, the lubricant of the guides tends to run out progressively in time making their sliding more difficult and noisy. For this
reason, together with each device a high temperature grease is supplied in order to make the lubrication of the guides possible for
the user, in case it becomes necessary (excessive noise or reduction of smoothness). After having completely lifted the door of the
stack, using a syringe, apply internally on the track on a visible point, as high as possible, two grease balls (corresponding to 0.5 ml
of the graduated scale of the syringe).
Pay attention not to exceed the suggested quantity. Repeat the same operation on the other track and lift and lower the door
many times so that the grease distributes on all balls.
CAUTION: use exclusively the grease supplied by La NORDICA.
CALCULATION OF THE THERMAL POWER
There is not an absolute rule for calculating the correct necessary power. This power is given according to the space to be heated,
but it depends also largely on the insulation. On an average, the calorific value necessary for a properly insulated room is 30 kcal/h
per m (for an external temperature of 0°C).
3
Given that 1 kW corresponds to 860 kcal/h, it is possible to adopt a value of 35 W/m
Let's suppose one wishes to heat a room of 150 m
150 m x 35 W/m = 5250 W or 5,25 kW. As main heating, a 8 kW device is therefore sufficient.
3 3
Fuel
Dry wood (15% humidity)
Wet wood (50% humidity)
Wood briquettes
Brown coal briquettes
Normal anthracite
Coke
Natural gas
Naphtha
Electricity
(10 x 6 x 2.5 m) in an insulated apartment. In this case, it is necessary to have
3
Approximate combustion value
Unit kcal/h
kg 3600
kg 1850
kg 4000
kg 4800
kg 7700
kg 6780
m 7800
3
L 8500
kW/h 860
ENgLIsH
.
3
Required quantity in relation to 1 kg of
dry wood
kW
4.2
2.2
5.0
5.6
8.9
7.9
9.1
9.9
1.0
1,00
1,95
0,84
0,75
0,47
0,53
0,46
0,42
4,19
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