Temperature Settings - CleaverBrooks CFC-500 Operation, Service And Parts Manual

CB FALCON
Cycle and Time History
The non-volatile memory contains the following parameters
and status values related to cycle counts and elapsed
operation time:
• Burner Run Time: hhhhhh:mm
• Burner cycle count: 0-999,999
• CH cycle count: 0-999,999
• DHW cycle count: 0-999,999
• Boiler pump cycle count: 0-999,999
• Auxiliary pump cycle count: 0-999,999
• System pump cycle count: 0-999,999
These are writable parameters so they may be altered if the
Falcon is moved, the burner is replaced or some component is
replaced.
There are also two non-writable counters:
• Controller Run Time: hhhhhh:mm
• Control cycle count: 0-999,999
Flame Signal Processing
The flame signal processing will monitor either a flame rod or a
UV flame sensor. The flame signal voltage at the test jacks or
on the bar graph on the display is the measured voltage in the
range from 0V to 15V. The display could show stronger
numerical data.
The incoming flame signals are filtered to eliminate transient
and spurious events.
The Flame failure response time (FFRT) is 4 seconds.
Flame sensitivity is set by the Flame Threshold parameter,
which will provide the ON/OFF threshold specified in volts or
microamps (1 volt is equivalent to 1 microamp).

Temperature Settings

All parameters that provide a temperature have a possible
value of "None."
This value is a special code that is not a legal temperature. If
the Falcon control is configured with a "none" temperature,
then this setting must be set up by the installer before the
control will operate.
750-265
Modbus/ECOM Event Handling
The Modbus and ECOM communication system responds to
queries and can write new values to the parameters.
WARNING
Explosion Hazard.
Improper configuration can cause fuel buildup and
explosion.
Improper user operation may result in property loss,
physical injury, or death.
Safety Configuration Parameters should be changed
only by experienced and/or licensed burner/boiler
operators and mechanics.
Response to Writing:
• Safety parameters will cause a lockout and must be
reviewed and verified before the control will operate again.
• Non-safety parameters may be written at any time and will
become effective within a short time; however, any behavior
that is seeded by the parameter value and is currently in-
progress (e.g. a delay time) may not respond to the change
until the next time this behavior is initiated.
Required Components (not supplied)
• Dual Element Temperature Sensor - contains Sensor plus
Limit (NTC, 10kohm, Beta = 3950).
• Single Element Sensor only (NTC, 10kohm, Beta = 3950)
• UV Flame Sensor
• Flame Rods
• External Ignition Transformer
• Gas Valves - Solenoid (24Vac)
Fluid Power (120 Vac)
Premix valves with Venturi
• Modulation Motor (4-20 ma or 0-10Vdc)
• Transformer (for powering Falcon; 40VA minimum) - 40VA
or 75VA
• Pressure Sensor (15 or 150psi)
• 880-2343 connector kit (see below)
• Flame Rod cable harness
• Combustion air blower (VSD-PWM) signal cable harness
• Transformer (for powering Falcon 40va minimum) - AT72D
(40VA) AT88 (75VA)
• Steam - Pressure Sensor (15 or 150) 4-20mA source type
• 50032893 - 001 Bag of connectors
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