CleaverBrooks CFC-500 Operation, Service And Parts Manual page 219

Parameter Name
ILK bounce Enable, Disable
detection enable
ILK long name The long name (up to 20 characters) of the ILK annunciator input.
ILK short name The short (3 letter) name of the contacts monitored by the ILK annunciator input.
Inlet Connector Designates the sensor type connected to the control for proper reading.
Type
Installation data The installer may edit this parameter to provide installation information.
ILK/IAS open During prepurge after a delay to establish airflow and during Ignition, MFEP, and Run, the
response 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.
Interlock (ILK) start If enabled, the control will check the ILK input as it exits the Standby condition in response
check enable 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.
Interrupted air This parameter enables the Interrupted Air Switch input. If enabled it is tested in the same
switch (IAS) enable way and during the same states as the ILK input.
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.)
LCI long name The long name (up to 20 characters) of the LCI annunciator input.
LCI short name The short (3 letter) name of the contacts monitored by the LCI annunciator input.
Lead Lag frost Enabled, Disabled
protection enable
Lead Lag frost Set the protection rate as a percentage. 100% represents 100% firing of this boiler, and
protection rate where 0% or any value less than the boiler's minimum firing rate represents the minimum
firing rate.
Lead lag time of day This Setpoint is used when the time-of-day input is on. If the ODR function is active, this
setpoint Setpoint provides one coordinate for the shifted (because TOD is on) outdoor reset curve,
as described for the LL Outdoor Reset parameter.
Lightoff rate This parameter specifies the analog output or fan speed used during Ignition.
Lightoff rate proving This parameter specifies the input used to confirm the Prepurge rate has been reached.
LL - Base load rate This specifies the preferred firing rate of a burner, which is used for some types of control.
LL - Demand-to- This delay time is needed by the LL master to determine the length of time to wait between
firing delay requesting a slave unit to fire and detecting that it has failed to start. It should be set to the
total time normally needed for the burner to transition from Standby to Run, including such
things as transition to purge rate, prepurge time, transition to lightoff rate, all ignition timings,
and include some extra margin.
LL - Fan during off- This determines if or where the fan is to be operating during the standby period.
cycle rate
LL master enable Disable, Enable
LL master Modbus The LL master may be disabled, enabled. If Disable is selected then all LL master functions
port are inactive. If Enable is selected then it acts as the active bus master at all times on the
Modbus port it is assigned to use by the LL Master Modbus port parameter.
LL operation switch This controls the LL master in the same way that the Burner switch controls a stand-alone
unit. If "On" then the LL master is enabled to operate. If this parameter is "Off" then the LL
master turns off all slaves and enters an idle condition.
LL - Slave enable It enables or disables the "LL Slave" Demand and Rate module.
LL - Slave mode If set to Use First, then this slave will be used prior to using other slave units with other
values. If this parameter is set to Equalize Runtime, then this slave will be staged according
to a run time equalization. (Any units set to Use First will precede any that are set to
Equalize Runtime.) If this parameter is set to Use Last, then this slave will be used only
after all Use First and Equalize Runtime units have been brought online.
LL - Slave priority Slave sequence order is used to determine the order in which the slave units will be used
sequence order (staged on) for those units with the same Slave mode setting. Numbers may be skipped,
that is 3 will be first if there is no 1 or 2.
LL - Slave read This provides the slave status message to be read by a Master. It includes all of the data
that is read from a slave.
Table 47. Parameter Glossary.
Short Description
95
CB FALCON
Ref. Page
57
61
61
20
21
57
57
57
57
61
61
80
80
Not available
at this time.
51
58
77
77
77
77
77
77
76
76
77
76
750-265