CFV Startup Guide
10 Part No. 750-288
Turn the <Burner switch> screen button to ON. The burner is now
enabled.
Turn the control panel DEMAND switch to LOC (local). The burner
sequence should now begin. To verify that the sequence is in
progress, check the ‘Burner state’ display on the Operation screen.
If operating normally, the controller should advance through the
steps in the burner sequence (see Figure 12).
Note: The <Burner switch> screen button enables the burner, but
will not by itself start the lightoff sequence. In order for the burner
to start, the following must be true:
• <Burner switch> screen button is ON
• All control circuit interlocks are satisfied
• A demand for steam exists (example: DEMAND switch is on LOC
and steam pressure is below setpoint)
Once started, the boiler will continue running until demand is met,
an alarm condition occurs, or until manually shut down.
Before leaving the boiler unattended, ensure all safety controls
have been checked and boiler operational settings are properly
set,
As part of the initial safety checks, a flame failure test should also be performed to verify that the controls
are able to respond properly to a loss of flame: Disconnect the flame rod cable and attempt to start the
burner. The CB Falcon should lock out, indicating Lockout 109 Ignition Failure. Reconnect flame rod cable
after test.
The CB Falcon requires a manual reset to resume operation after a lockout.
3 - MANUAL OPERATION
Certain circumstances - such as setting combustion - require operating the boiler in manual mode. To enter
manual mode, use the following procedure:
Figure 11 Operation screen
BURNER
SWITCH
button
Burner Sequence:
STANDBY (burner switch off or no demand)
SAFE STARTUP
PREPURGE DRIVE TO PURGE (prove fan
purge rate)
PREPURGE MEASURED PURGE TIME
(30 sec default)
PREPURGE DRIVE TO LIGHTOFF (prove
lightoff rate)
PREIGNITION TEST
DIRECT BURNER IGNITION
RUN (release to modulating control)
Figure 12 Burner Sequence
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