Direct Digital Controller
120 Direct Digital Controller fw 4.013 – Ed. 01/2013
2 - Select to gain access to the System installation.
3 - Enter the installer password on the numerical keypad that appears on the display.
4 - Select “Plants” from the drop-down menu.
5 - Select the plant type:
for two-line cooling/heating plant; for the hot water production plant;
6 - Turn the knob to scroll the cursor downward until highlighting “Base plant part” and press the knob.
7 - Turn the knob to scroll the cursor downward until highlighting “Heating/DHW select.”
8 - Place the cursor on
next to the option you wish to set: ”Heating and DHW (Simultan.service)” or
“Heating only.”.
9 - Press the knob to activate the option. The
symbol indicates that the option has been enabled .
10 - To exit, select
.
4.4.2.6.11 Base DHW service configuration
Set-point limit
The option present inside the installation menu allows to define the maximum limit of the set-point temperature
(flow) for the production of DHW on the base part of the system. The set-point temperature will be set
subsequently by the user by means of “User settings” Menu. In particular, it is possible to define the maximum
temperature for the production of DHW within a field of +5°C / +95°C (+41° F / +203° F). For example, if a
value of +60°C (+140° F) is set, the user can define a temperature value between +5°C (+41° F) and +60°C
(+140° F).
1 - Select
from the initial screen to gain access to the main menu.
2 - Select
to access the “installation menu”.
3 - Enter the installer password on the numerical keypad that appears on the display.
4 - Select “Plants” from the drop-down menu.
5 - Select the
symbol for two-line cooling/heating plants, for hot water production plants, or
for chilled water production plants.
6 - Turn the knob to scroll the cursor downward until highlighting “Base plant part” and press the knob.
7 - Turn the knob to scroll the cursor downward until highlighting “Base DHW srv.Conf.” and press the knob.
8 - Turn the knob to scroll the cursor downward until highlighting “Set-point Range” and press the knob.
9 - Position the cursor on the temperature value to be modified.
10 - Press the knob to allow the change of the selected value.
11 - Turn the knob to modify the value.
12 - Press the knob to confirm the set value.
13 - To exit, select
.
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