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Honeywell GT-530 Manuel De L'utilisateur page 21

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Overvoltage (Shutdown Alarm)
If the generator voltage rises above 110% of rating for greater than
three (3) seconds, an alarm will be issued and the unit will shut
down.
If the generator voltage rises above 130% of rating for greater than
0.2 seconds, an alarm will be issued and the unit will shut down.
Clear Alarm
Clear the alarm by setting the AUTO/OFF/MANUAL switch to the
OFF position. Press the ENTER key to unlatch any active fault and
clear the corresponding alarm message.
3.6.2
COMMON ALARM RELAY
The common alarm relay will be activated if there is a shutdown
alarm. It will not activate on warnings or indicate that the AUTO/
OFF/MANUAL switch is in the OFF position. The OFF position will
clear the alarms and the relay. The relay will not be used to indicate
a generator is not activated.
The common alarm terminals are wired to a set of potential-free
(dry) contacts on the Nexus contoller board. These Normally Open
(N.O.) contacts close when an alarm condition occurs and are
used to activate a remote signaling device. The circuit is rated for
a maximum of 130mA at 24 VDC.
3.6.3
WARNINGS
Second Priority (Non-latching) Displayed on the control panel
and the external yellow LED. Warnings automatically clear when
the monitored condition goes away. Warnings are recorded in the
alarm log. Warnings cannot cause shutdowns.
Low Battery
The Control Board monitors battery voltage and displays a warn-
ing if the battery voltage falls below 11.9 volts for one (1) minute.
Warning is automatically cleared if the battery voltage rises above
12.4 volts. Battery voltage is not monitored during the crank
cycle.
Exercise Set Error
If the exercise period becomes corrupted, a warning message
will be displayed. This message will only clear when the exercise
period is reset.
3.6.4
MAINTENANCE ALERTS
Third priority
Maintenance Message
When a maintenance period expires, a warning message will
be displayed. The alert can be reset by pressing the Enter key,
which will cause the user to be prompted to confirm the action.
Resetting will clear the alert and reset the maintenance counters
for all conditions annunciated. The history log will record the alert.
The maintenance counter will not accumulate without battery
power. Once battery power is restored, the set time prompt will be
displayed. The maintenance counters will be adjusted to the new
time and date.
Since most maintenance alerts will occur at the same time
(most have two (2) year intervals), only one will appear on the
display at any one time. Once the first alert is cleared, the next
active alert will be displayed.
4.1
FUSE
The 7.5 amp fuse on the control panel protects the DC control
circuit against overload (Figures 3.1 and 3.2). This fuse is wired
in series with the battery output lead to the panel. If this fuse ele-
ment has melted open, the engine will not be able to crank or start.
Replace this fuse using only an identical 7.5 amp replacement
fuse. Whenever the fuse is removed or replaced, the exercise timer
needs to be reset.
4.2
CHECKING THE ENGINE OIL
LEVEL
For oil capacities, see the Specifications section. For engine oil
recommendations, see the Engine Oil Recommendations section.
When power outages necessitate running the generator for extend-
ed periods of time, the oil level should be checked daily.
To check the engine oil level, proceed as follows (Figures 4.1 and
4.2):
1.
Open the roof and remove the door.
2.
If the generator is running during a utility outage, first turn OFF
all associated loads running in the residence. Second, turn the
generator's main circuit breaker to the OFF position.
3.
Move the AUTO/OFF/MANUAL switch to the OFF position.
4.
Remove the dipstick and wipe it dry with a clean cloth.
5.
Completely insert the dipstick; then, remove it again. The oil
level should be at the dipstick "Full" mark. If necessary, add
oil to the "Full" mark only. DO NOT FILL ABOVE THE "FULL"
MARK.
5.
Install the dipstick.
7.
Reset the AUTO/OFF/MANUAL switch to its original position.
8.
If the generator was running during a utility outage, first turn
the generator's main circuit breaker back to the ON position.
Second, turn ON needed loads in the residence.
9.
Replace the door and close the roof.
Never operate the engine with the oil level
below the "Add" mark on the dipstick. Doing
this could damage the engine.
Maintenance
NOTE:
19

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Gt-990Gt-999