Code
Description
Flue length
Sc04
Minimum power setting
Sc05
Minimum gas valve setting
Sc06
Flame ionization signal
Sc07
Current power ref. DHW
Sc08
MAX ionization value
Sc09
Minimum ionization value during igni-
Sc10
tion
Ignition time
Sc11
Sc12* Ionization reduction value (BASE)
Sc13** Ionization reduction value (min.)
Internal error K1
Sc14
100% CALIBRATION
Sc15
* / ** 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.
194
Functional description
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.
Allows the minimum power to be increased,
if necessary.
Self-adaptive parameter. DO NOT MODIFY.
Displays the actual ionization current signal. Read only
Displays the actual power referred to maxi-
mum power in DHW.
Displays the maximum ionization value
reached.
Displays the minimum ionization value
reached during the ignition phase.
Displays the time from fan activation to ioni-
zation.
NOT MODIFIABLE
NOT MODIFIABLE
Displays the SCOT system error code.
Allows 100% Calibration (see "100% cali-
bration" on page 188) in case of replace-
ment of several components
cod. 3541V280 - Rev. 00 - 03/2021
RAGGIO C
Range
Default
-2 ÷ 13
0
0 ÷ 25
0
Read only
Read only
Read only
Read only
Read only 0
Read only 0
Read only
0 - 3
0
EN