Direct Digital Controller
146
Direct Digital Controller fw 4.013 – Ed. 01/2013
A
B
D
I
H
C
E
N
D
O
G
M
F
4.6
MANAGEMENT AND DISPLAY OF WARNINGS AND ANOMALIES
Any operating anomalies of the GA High Efficiency and GAHP units linked to the Direct Digital Controller are
signalled and displayed on it via the following:
Error menu;
Event history
(see Paragraph 3.2.5 on page 26);
Machine status
(see Paragraph 0 on page 21).
To access the error menu, select
from the main screen.
Figure 32 shows the alerts menu screen.
Figure 32
–
EXAMPLE OF ERROR MENU SCREEN
The errors menu shows the
events underway
: it is possible to view the type of event (warning or error) for
each machine type.
Instructions to access the alerts menu:
1 - Select
from the main screen.
2 - Select the plant in which the events occurred:
for two-line cooling/heating plants,
for hot
water production plants, or
for chilled water production plants. The
symbol that appears next to
the plant icon indicates that an anomaly is present.
3 - To locate the unit where the error has occurred, select . If no error has occurred, the message “No
error” appears.
4 - Use the vertical scroll arrows
to view all the events present on the unit.
The
key gives access to the “Units management” menu, should it be necessary to perform an error reset or
reset of the “Flame control unit”.
The button
i
allows to access the “INFORMATION MENU” related with the selected unit.
KEY:
A
Sequential number of events in progress for selected unit;
B
System identification symbol;
for cooling plant,
for
heating plant;
C
Indication of machine ID;
D
Scroll arrows to change which unit’s events are displayed;
E
Vertical scroll arrows: these allow the user to view the
events that have occurred on the unit;
F
Indication of event code (Error: E, Warning: W);
G
Text describing the selected function.
I
Text describing the event.
H
Text describing the action to be carried out to solve the
event that occurred.
M
Anomaly
regards:
C
: conditioning module;
H
: heating module;
S
: electronic board.
N
Access to the “unit information” of the selected unit
O
Access to the “unit alarms reset” of the selected unit
NOTE: the letters C and H will not be displayed for GAHP-
GS/WS.
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