59 750-265
Fan during off cycle
rate
If this parameter is non-zero for a control that is enabled as a LL slave, then it provides the
modulation rate (e.g. fan speed) that should be used when the LL master indicates this
burner should be off but should run its fan at the off cycle rate.
Fan gain down This parameter determines how aggressively the fan controller changes the fan duty cycle
when the fan should slow down. It is the gain of a first-order filter (e.g. it is the I gain of a PID
control in which the P and D gains are always zero).
42
Fan gain up This parameter determines how aggressively the fan controller changes the fan duty cycle
when the fan should speed up. It is the gain of a first-order filter (e.g. it is the I gain of a PID
control in which the P and D gains are always zero).
42
Fan min duty cycle Whenever a variable speed fan is on it will never receive a duty cycle less than this
parameter's value. It should be set to the duty cycle at which the fan is guaranteed to keep
spinning (after it has started) so that it will never stall.
42
Fan slow down
ramp
Whenever the burner is firing it will be commanded to decrease its RPM no faster than the
rate provided by this parameter.
42
Fan speed up ramp Whenever the burner is firing it will be commanded to increase its RPM no faster than the
rate provided by this parameter.
42
Firing rate control If one of the manual modes is chosen then the Manual Rate parameter controls the firing
rate during the specified states.
41
Flame sensor type Different kinds of flame detectors may be used. This parameter tells the control what type of
sensor is installed.
Flame threshold The flame threshold can be adjusted to match various kinds of flame detectors and
equipment. It is specified in tenths of volts, where 0.1V = 0.1 microamp for a flame rod.
IAS start check
enable
This parameter enables a start check for the Interrupted Air Switch input. If enabled, this
input must be off before leaving Standby, to prove that it is not shorted..
36
Ignite failure delay When Recycle && hold after retries is selected as the response for an ignition failure, this
parameter provides the delay time for the hold.
39
Ignite failure
response
If ignition fails then several responses are possible. This parameter selects one of these
responses.
39
Ignite failure retries This parameter provides the number of retries for an ignition failure, if the response to
failure of ignition includes retries.
39
Igniter on during The igniter may be on throughout the pilot establishing period, or only during the first half of
it (early ignition termination). Ignored if DBI is selected.
39
Ignition source Several outputs may be selected as the ignition source. This parameter selects one of
these.
40
ILK long name The long name (up to 20 characters) of the ILK annunciator input. 48
ILK short name The short (3 letter) name of the contacts monitored by the ILK annunciator input. 48
Installation data The installer may edit this parameter to provide installation information. 19
Interlock open
response
During prepurge after a delay to establish airflow and during Ignition, MFEP, and Run, the
burner control requires the ILK to remain on. If it opens during these times, this parameter
determines the response: either a lockout or a recycle.
37
Interlock start check
enable
If enabled, the control will check the ILK input as it exits the Standby condition in response
to demand. If on, the burner control will hold waiting for it to turn off. If this hold time expires
and the ILK is still on, a lockout occurs.
36
Interrupted air
switch enable
This parameter enables the Interrupted Air Switch input. If enabled it is tested in the same
way and during the same states as the ILK input.
37
LCI enable The LCI input may be enabled as a recycle interlock, or this may be disabled. (It is normal
to disable the LCI here if it is to be used as a demand input for the CH control loop.)
36
LCI long name The long name (up to 20 characters) of the LCI annunciator input. 48
LCI short name The short (3 letter) name of the contacts monitored by the LCI annunciator input. 48
Table 30. Parameter Glossary.
Parameter Name Short Description Ref. Page
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