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Using option parameters 36.1 to 36.4, it is possible to set a different flue temperature low alarm value for
each profile combination. Each option parameter may be set to any value between
0
and
999
inclusive.
The temperature units should be set with respect to option parameter 30.4.
If the burner is firing, it is only possible to make an adjustment to the option parameter that relates to the
selected profile. If the burner is not firing, the low alarm value for any profile selection may be adjusted.
When the flue temperature drops below the low alarm value for the selected profile, a fault number will
appear.
Options 37.1 to 37.4 - Flue temperature high alarm values (0 – 999)
LV3
Using option parameters 37.1 to 37.4, it is possible to set a different flue temperature high alarm value for
each profile selection. Each option parameter may be set to any value between
0
and
999
inclusive. The
temperature units should be set with respect to option parameter 30.4.
If the burner is firing, it is only possible to make an adjustment to the option parameter that relates to the
selected profile. If the burner is not firing, the high alarm value for any profile selection may be adjusted.
When the flue temperature rises above the high alarm value for the selected profile combination, a fault
number will appear.
Option 38.0 - Oxygen alarm select (0 – 2)
LV3
Option parameter 38.0 is only available when option 30.5 (oxygen input select) is not set to zero and the
optional oxygen probe interface unit is connected.
Since the oxygen alarm values relate to the oxygen set point values, oxygen setpoint values must first be
entered in adjust ratio mode.
Option parameter
38.0 value
Meaning
0
Alarms disabled.
Oxygen low and high alarms are disabled.
1
Alarms enabled no non-volatile lockout.
Oxygen low and high alarms are
enabled and option parameters 38.1 to 41.4 will become available. If an alarm
value is exceeded, a fault number will appear but no non-volatile lockout will
occur.
2
Alarms enabled with non-volatile lockout.
Oxygen low and high alarms are
enabled and option parameters 38.1 to 41.4 will become available. If an alarm
value is exceeded, a fault number will appear and a non-volatile lockout will
occur.
O 2
CAUTION
This parameter is not required, but
highly recommended.
Summary of Contents for NEXUS NX6100 series
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