Technical data
38
C83
Type C boiler connected, via its pipes, and optionally via a tting, to an air supply terminal and
connected to a dedicated or collective ue.
Description of possible appliance installation congurations.
4.9 PROGRAMMING OF HYDRAULIC PARAMETERS
The hydraulic parameters can be set according to the procedure described in this pa-
ragraph only when the appliance is not connected to a DDC.
If the appliance is connected to a DDC, follow the instructions given in the DDC ma-
nuals exclusively.
To congure the hydraulic parameters, access menu 3 of the controller.
For the use of the controller, refer to procedure "HOW TO ACCESS THE MENUS" in Para-
graph 3.2 ON-BOARD ELECTRONICS → 18.
Table 4.6 Menu 3 parameters → 38 gives the three parameters used for hydraulic
conguration.
Table 4.6 – Menu 3 parameters
HYDRAULIC PARAMETER THE DISPLAY SHOWS
Hot water thermostat control selection 3.160
Hot water setpoint 3.161
Hot water temperature dierential 3.162
(EXIT MENU) 3. E
Description of parameters
• Hot water thermostat control: parameter "160". This parameter takes two values:
"0" and "1". Value "0" indicates that the appliance's "activation/deactivation"
temperature is to be read by the water probe at the appliance’s INTAKE. Value
"1" indicates that the appliance’s "activation/deactivation" temperature is to be
read by the water probe at the appliance’s OUTLET.
• Hot water setpoint: parameter "161". this parameter sets the water temperature
that, when reached, causes the appliance to be deactivated.
• Hot water dierential: parameter "162". This parameter represents an interval in
degrees that, when added to the set-point, denes the temperature at which
the appliance is reactivated.
Heating mode:
The appliance heats the water until it reaches the setpoint temperature. The appliance
then switches o. This means that the water temperature slowly drops to the setpoint
+ dierential temperature. At this point, the appliance turns back on.
For example, if we set the following values:
• Thermostat control: "0" (= read INTAKE water temperature).
• Setpoint: +40.0 °C.
• Dierential: -2.0 °C.
The appliance will behave as follows:
the water temperature rises (heating);1.
the intake water temperature reaches +40 °C (= setpoint);2.