18
SYSTEM OPERATION
The fixed series timings determine the functional operation of the BurnerPRO control (e.g. purge tim-
ing, trial for ignition timings, etc.) The BurnerPRO offers a single multi-functional button and its func-
tions are as follows:
RESET
The BurnerPRO control provides two methods of resetting the control in the event of a safety lockout:
The push button reset and terminal 21 remote reset. Both reset methods can be used to stop the control
in its firing sequence at anytime to force a user/emergency lockout. A reset of the control can be
accomplished by momentarily pressing the reset button or engaging the remote reset terminal.
CHECK MODE
The push button reset switch has an added feature that allows the user to freeze the operational
sequence at certain times (Purge, Ignition, PTFI, MTFI, and AUTO). This is known as CHECK
MODE and it is designed to aid in set-up, start-up and check-out of the burner and its associated inter-
locks. This feature is very useful in pilot aiming and adjustment during commissioning or mainte-
nance.
The check mode rules are:
• If the push button reset is held for at least 3 seconds, the status LED changes from green to yellow
to signal that the control is in check mode.
• Momentarily pressing the push button reset while in check mode transitions the control into nor-
mal operating sequence, thus disabling check mode.
• The control locks out during Purge, Ignition, or PTFI states if check mode is active longer than 30
minutes
• The control allows check mode in MTFI for 2 minutes. The control automatically cancels check
mode after 2 minutes in MTFI state and resumes normal operation.
• When in check mode during PTFI, MTFI and AUTO states, the control uses the open, close, auto,
ignition, and flame LEDs to annunciate the flame signal strength. Every illuminated LED (starting
with the flame LED) represents a 20% signal strength.
• It should be noted that the control will still perform safety checks in the background while in
CHECK mode to ensure the safe operation of the burner. The control will proceed to lockout if it
detects an unsafe condition.
To Next Page
Loading...