61
Rev 2.1
Table 4.16 – Warm Weather Shutdown Configuration Parameters.
4-30 T-Rise Limit Configuration Parameters
Table 4.17 displays T-Rise Limit configuration parameters.
Refer to 5-12 T-RISE LIMIT CONFIGURATION for T-Rise Limit parameter programming.
Parameter Comment Password
Outlet T-rise enable Disabled or enable T-rise limit. Installer
T-rise degrees If the T-rise limit is active and the outlet temperature
rises faster than this number of degrees per minute, then
the burner will recycle and delay for a specified time.
Installer
T-rise response Lockout: lock out will occur when the T-rise limit is
reached.
Recycle & delay: Recycle and delay will occur when the
T-rise limit is reached.
Recycle & delay with retry limit: Recycle and delay
with a retry limit will occur when the T-rise limit is
reached.
Installer
T-rise retry limit When the response to excessive temperature rise
includes a retry limit, then this parameter provides the
maximum number of retries that will occur.
Installer
T-rise delay This parameter provides the delay time before the burner
will again attempt to fire.
Table 4.17 – T-Rise Limit Configuration Parameters
4-31 Lead Lag Slave Configuration Parameters
Table 4.18 displays Lead Lag Slave configuration parameters.
Refer to 5-13 LEAD LAG SLAVE CONFIGURATION for Lead Lag Slave parameter programming.
Parameter Comment Password
Slave enabled Disabled: The slave function is disabled. Commands
from any of the communication will be ignored.
Enabled via Modbus: The slave function is controlled by
Modbus messages.
Slave: The slave function is controlled by Boiler 1 master
boiler.
Installer
Slave mode Use first: Always fire this burner first, before firing any
that are to have equalized run time. Use the Slave
Sequence Order to determine which burner fires first for
all of those that are set to the Use First condition.
Use Last: Always fire this burner last, after firing any that
are set to Use First of to equalize run time. Use the
Slave Sequence Order for all of those that are set to the
Use Last condition.
Equalize runtime: Operate the slave burner to equalize
their run time vs other slave
Installer
Base load rate This parameter specifies the slave burner’s preferred
firing rate for use by the lead lag master, when it is set
up to use the base load rate of each slave.
Installer
Slave sequence order Slave sequence order is used to determine the order in
which burner will be staged on.
If slave sequence number is zero slave Modbus address
will be used instead.
Installer
Demand to firing delay Length of time to wait between requesting a stage to fire
and detecting that it has failed to start.
Installer
Fan rate during off cycle It provides the modulation rate that should be used when
the LL master indicates this burner should be off but
should run its fan at the off cycle rate.
Installer
Modbus port MB1, MB2 or No Port
Modbus port use for lead lag operation.
Installer
Modbus address 0-250
Modbus address used to communicate with the unit. This
address number must be unique for each burner on the
network.
Installer
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