CleaverBrooks CFC-500 Operation, Service And Parts Manual page 222

CB FALCON
Parameter Name
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.
Stack Connector Designates the Sensor type connected to the control for proper reading.
Type
Stack limit delay This parameter provides the delay time for the Stack limit.
Stack limit enable This parameter enables or disables the entire stack temperature limit function.
Stack limit response For Recycle and Delay, the burner control recycles and holds while waiting for a delay (see
the Stack Limit Delay parameter) to expire, and after the delay it tries again.
Stack limit setpoint If the stack temperature exceeds the temperature given by this parameter then the
response defined for the Stack Limit Response parameter will occur. As the temperature
approaches this limit, the Stepped Modulation Limiting function is active.
Standby Rate Specifies the analog output of fan speed used during standby or demand off time.
Steam 4-20mA Allows modulation from source other than pressure sensor.
remote
Steam D gain Gain applied to the differential
Steam enable Disable/enable steam feature.
Steam demand The source of Steam loop control can be specified to use different inputs.
source
Steam hysteresis Time for each step.
step time
Steam I gain Gain applied to the Integral.
Steam min. Provides minimum pressure used to calculate the 4-20ma setpoint for 4ma.
pressure
Steam P gain Gain applied to the Proportional.
Steam pressure On or Off hysteresis adjusted to the setpoint at which this demand turns off or on.
off hysteresis,
on hysteresis
Steam pressure Pressure Control setpoint
setpoint
Steam sensor The sensor used for modulation and demand - typically a 4-20ma source.
Steam time of day Provides the steam pressure setpoint when TOD is on.
setpoint
System pump Can be written to a new value (e.g. if the pump or controller is replaced).
cycles
T-Rise degrees per For any input that has T-rise detection enabled, this parameter provides the maximum rate
second limit of temperature increase that will be allowed. If the temperature increases at a rate greater
than this, and this rate of increase persists for 4 seconds then the response specified by T-
rise response occurs.
T-Rise response Specifies response should "T-Rise degrees per second limit" is exceeded.
T-rise delay Specifies the delay time that occurs whenever a recycle occurs due to a T-rise event and
the specified response includes "Recycle..." The burner will remain in the Standby Hold
condition until the delay expires.
T-rise retry limit If the "T-rise response" specifies a retry limit, then any recycles due to reaching the
corresponding response threshold are counted.
Tap detect degrees This tap demand "set" criteria depends on rate of change of the DHW sensor. The rate of
per second change of this temperature is monitored.
Tap detect minimum Once a tap detect event has occurred, and the Tap demand block is Set, it remains true for
on time at least the time provided by this parameter. If DHW loses control due to priority, the timer is
restarted, so that when Tap demand again gains control of the burner it remains in this
condition for the full minimum on time.
Tap detect on -17 °C to 82 °C (-0 °F to 180 °F)
threshold
750-265
Table 47. Parameter Glossary.
Short Description
98
Ref. Page
52
20
46
46
46
46
51
30
30
29
29
30
30
30
30
30
30
29
30
6
45
45
45
45
36
37
36