Direct Digital Controller
Direct Digital Controller fw 4.013 – Ed. 01/2013 31
3.4 USER SETTINGS
From the main menu, select . If requested, enter the user
password on the numerical keypad that appears on the screen and then
select
to confirm. If the wrong password is entered, the display
reverts to the main menu screen.
Accessing this menu allows the following parameters to be
consulted/set:
3.4.1 plants
3.4.2 PREFERENCES
3.4.3 Exit
3.4.1 PLANTS
PLANTS Select “Plants” from the dropdown menu. Select the
or
or plant in function of the type of configured plant. Access
is gained to a scroll menu containing the parameters that can be set:
3.4.1.1 Water Setup
3.4.1.2 Ambient Setup
3.4.1.3 External ambient setup
3.4.1.1 Water Setup
The following paragraphs describe the operating logic of the Direct Digital Controller to allow the operator to
set the water parameters correctly, such as set point temperature, differential, and number of steps.
3.4.1.1.1 Cooling/Heating
The options that may be set in this menu, for the cooling/heating services, are:
3.4.1.1.1.1 Default set point
3.4.1.1.1.2 Enabling of climatic curve
3.4.1.1.1.3 General water T timer
3.4.1.1.1.4 Partial water T timer
3.4.1.1.1.1. Default set point
This screen displays the water set point temperatures for cooling and/or heating operation according to the
type of plant configured.
Plant for production of chilled water. The set point represents the desired
temperature for water leaving the machine if, in the System installation,
thermostating has been set on the outlet water; if the opposite applies, the
temperature set point represents the desired temperature for the machine’s inlet
water.
Plant for production of hot water. The set point represents the desired temperature
for water leaving the machine if, in the System installation, thermostating has been
set on the outlet water; if the opposite applies, the temperature set point represents
the desired temperature for the machine’s inlet water.
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