RAGGIO C
194
EN
cod. 3541V280 - Rev. 01 - 04/2021
* / **
The values of parameters
Sc12
and
Sc13
cannot be modified from the menu but only via the
calibration procedures.
ZTP (Sliding temperature) Parameters Menu
When the external probe is installed, the boiler adjustment system works with "Sliding Tempera-
ture". In this mode, the heating system temperature is regulated according to weather conditions,
to ensure high comfort and energy efficiency throughout the year. In particular, as the outside tem-
perature increases the system flow temperature decreases according to a specific "compensation
curve".
With Sliding Temperature adjustment, the temperature set using the buttons [+] (detail 12 fig.1)
and [-] (detail 14 fig.1) becomes the maximum system flow temperature. It is advisable to set a
maximum value to allow system adjustment throughout its useful operating range.
The boiler must be adjusted at the time of installation by qualified personnel. However, the user
can make any further adjustments necessary to optimize comfort levels.
Compensation curve and curve offset
The settings of the compensation curves and relevant offset can be accessed via the service
menu and touching the item [ZTP parameters]. Use fig. 25 as a reference for choosing the value
of curve-type parameters and fig. 26 as a reference for choosing the value of offset-type parame-
ters.
If the room temperature is lower than the required value, it is advisable to set a higher order curve
and vice versa. Proceed by increasing or decreasing in steps of one and check the result in the
room.
Sc04
Flue length
Allows the boiler to be arranged according
to the width and length of the flue used. To
be used only with Ø50 or Ø60 flues. See
fig. 19.
-2 ÷ 13
0
Sc05
Minimum power setting
Allows the minimum power to be increased,
if necessary.
0 ÷ 25
0
Sc06
Minimum gas valve setting
Self-adaptive parameter.
DO NOT MODIFY
.
Sc07
Flame ionization signal
Displays the actual ionization current signal. Read only
Sc08
Current power ref. DHW
Displays the actual power referred to maxi-
mum power in DHW.
Read only
Sc09
MAX ionization value
Displays the maximum ionization value
reached.
Read only
Sc10
Minimum ionization value during igni-
tion
Displays the minimum ionization value
reached during the ignition phase.
Read only
Sc11
Ignition time
Displays the time from fan activation to ioni-
zation.
Read only
Sc12
* Ionization reduction value (BASE)
NOT MODIFIABLE
Read only 0
Sc13
** Ionization reduction value (min.)
NOT MODIFIABLE
Read only 0
Sc14
Internal error K1
Displays the SCOT system error code.
Read only
Sc15
100% CALIBRATION
Allows 100% Calibration (see “100% cali-
bration” on page 188) in case of replace-
ment of several components
0 - 3
0
Code
Description
Functional description
Range
Default
