69
4.4.2 Adjustment with an external climate
control probe
The boiler is predisposed for climate control functionality
thanks to the use of an external probe, which, once in-
stalled, is automatically recognized by the boiler's elec-
tronic components.
30
-5 0 5 10 15 20
40
50
60
70
80
90
Tm
Tm1=75
Tm2=55
Fig. 38
In this case, the operations described in the previous para-
graph are no longer necessary, since the delivery temper-
ature of the heating water (Tm) is automatically established
by the boiler's electronic components based on the exter-
nal temperature (Te), and based on the parameters that the
Technical Assistance Centre, who performs the first start-
up, is required to enter.
Fig. 38 contains an example of the curve that determines
the relationship between the delivery temperature to the
system (TM) and the external temperature (TE).
The curve can nevertheless be modified by the user in or-
der to obtain a climatic adjustment that's perfectly suited to
the thermal insulation characteristics of the dwelling itself,
while at the same time always ensuring maximum comfort
in terms of heat. In order to adjust the curve, the following
procedure must be performed:
- Press the "+" or "-" button for the heating function.
The left-hand display will show the number "
3
", while
the right-hand display will show the heating water's
current temperature in Celsius (which depends on
the building's external temperature at that same mo-
ment). The lower the external temperature, the higher
the delivery temperature (Tm) will be.
- Press the "+" or "-" buttons for the heating function
one or more times to increase or decrease the tem-
perature.
If the unit is equipped with a board for managing a low
temperature zone, it is possible to enable adjustment using
the external climate control probe for the low temperature
zone as well, with parameters different from those used for
the high temperature zone, which must likewise be entered
by the Technical Assistance Centre the first time the boiler
is activated.
4.5 Monitoring the boiler
The two displays on the boiler's control panel
POWER X
provide the user with the following information:
- The boiler's operating status,
- The temperatures set by the user (set points)
- The current temperature of the hot water being deliv-
ered to the heating system
- The current temperature of the hot water being deliv-
ered to the domestic hot water circuit
- Error messages
4.5.1 Boiler operating status
The single-digit left-hand display indicates the boiler's cur-
rent operating status, and can assume the following values:
0
The boiler is on, but the burner is off since there is cur-
rently no hot water being requested for the heating sys-
tem or the domestic hot water circuit. The dot on the
right is flashing.
1
The boiler is on, the burner is off, and the fan is in func-
tion in order to extract any residual flue gases present in
the combustion chamber. The dot on the right is flash-
ing.
2
The boiler is on, and the burner is in its ignition phase
(electrode discharge). The dot on the right is flashing.
3
The boiler is on, and the burner is on following a hot
water request from the heating circuit. The dot on the
right remains steadily on.
6
The boiler is on, and the burner is on following a hot
water request from the domestic hot water circuit. The
dot on the right remains steadily on.
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