Green Heating Technology
9
Room thermostat:
it commands electrically the boiler to activate or deactivate the heating system, in
order to keep the room temperature (detected by a sensor) within a value set by the user, Regulation
in force prescribe its positioning, the temperature limits within the user can adjust it and the periods
of heating. On trade are available programmable room thermostats: most of them allow to make a
weekly programming of various temperature levels, besides special programs for various purposes.
We suggest to choose original ITALTHERM accessories.
Typical use
Preliminary operations
f
Firstly, the knob
12
should be on the position
8 .
f
Make sure, by the gauge
18
that the cold-system temperature is always within 0.5 and 1.5 Bar (opti
-
mal: 1÷1.5 Bar). When the pressure drops below 0.5 Bar, the boiler
stops working
. In this case, open
the system filling cock
19
up to obtain, on the gauge, a value between 1.0 and 1.5 Bar.
The system pressure raises with the temperature: a too high initial cold-system pressure could
lead to
water drain from the 3 Bar safety valve
after the system heating-up.
f
Make sure that the gas cock
20
is open.
f
Make sure that the boiler is electrically supplied: green light
1
blinks.
Boiler activation
f
Rotate the knob
12
on Summer
11
if you want to have only hot water production, or on Win-
ter
9
if you need both room heating and hot water production.
f
Opening a hot water cock, the burner ignites and, after a short time (that also depends on the char-
acteristics of the plant externally the boiler) hot water flows from the cock.
f
In Winter mode, consequently a request by the Room thermostat, the burner ignites and the
produced heat is sent, by means of the system vector liquid, to the heating elements of the building.
If, in the mean time, a Domestic Hot Water request takes place, this latter has the priority for the
whole request time. Since the DHW requests are usually limited in time, they generally don't affect
the room heating.
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rv
ice
service
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1
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