Ariston Type C Instrukcje instalacji i serwisowania - Strona 32
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F
. 3.22
IG
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. 3.23
IG
WARNING
(*) - If curve 0_3 or 0_5 is set, a system
safety thermostat must be connected to
the main terminal board (see paragraph
2.10)
With parameter P 5 it is posslbe to adjust the heat curve
setting to those shown in fig. 4.16). Using programming keys
and
, the curve setting may be changed. The possibility of
setting curves varies according to parameter r:
r = 00 (low temperature range) from curve 0_3 to 0_5 (underfloor
systems only)
r = 01 (high temperature range) from curve 1_0 to 3_0.
max power Central Heating
max power DHW
minimum power
32
S
ETTING THE
(Only enabled when an outdoor sensor is installed)
When using an outdoor sensor, the microprocessor-controlled P.C.B.
calculates the most suitable flow temperature, taking into account
the exter nal temperature and the type of system. The
microprocessor is capable of doing this because it is possible to
establish a link between the external temperature and the flow
temperature of the Central Heating system water. This link translates
into a "thermal curve".
The type of curve should be chosen in correspondence with the
planned temperature of the system and the nature of the heat loss
present in the building.
100
80
60
40
20
20 16
Test Function
The P.C.B. allows the boiler to be forced to the maximum or
minimum power. Enable the test function and OO will appear on
the right-hand display (see Fig. 3.8).
To select operation at maximum power, press the programming
key
, two dashes will appear at the top of the right-hand
display (see Fig. 3.9).
F
. 3.27
IG
This function is disabled when you press reset key to quit the
adjustments menu.
To select operation at minimum power, press the programming
key
, two dashes will appear at the bottom of the right-hand
display (see Fig. 3.10). This function is disabled when you press
reset key "H" to quit the adjustments menu.
Note: The boiler can be forced to the maximum and minimum
F
. 3.28
IG
power even without enabling the test function via the
adjustments menu:
a - by pressing the Reset key for 5 seconds, the boiler is
automatically forced to test mode and t-- will be displayed,
the boiler is now in the test mode for the maximum heating
power, to force the boiler to maximum output for hot water it
is necessary to press the
dashes appear at the top of the right-hand display (see Fig.
3.9). This function is disabled by pressing the reset key .
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. 3.29
IG
b - by pressing the
minimum power, two dashes appear at the bottom of the
right-hand display (Fig. 3.10). This function is disabled by
pressing the reset key.
C
I
P P 5 5
URVE
NCLINE
3
12
8
4
0
-4 --8 --12 --16
temp. esterna [°C]
External temperature (°C)
t t
and
key, the boiler is forced to operate at
Fig. 3.24
2,5
2
1,5
1,2
1
0,5
0,3
keys together, two