DF Series installation manual
21
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11.
TROUBLESHOOTING
•
FIREYE FLAME SAFEGUARD RELAY
The FIREYE flame safeguard relay has five (5) lights that show that the operating
sequence is normal and also to indicate burner malfunctions.
•
Normal operating sequence
a.
The OPR CTRL light is ON when there is a heating demand and terminal 7 is
energized.
b.
The AIR FLOW light is ON when all the safety devices as well as the low and
high air pressure and high temperature limit switches are closed, and terminal
6 is energized.
c.
The PTFI light is ON only during the pilot ignition cycle.
d.
The FLAME light is ON only when the flame safeguard relay detects a flame
signal and is not in alarm mode.
e.
The ALARM light flashes when a malfunction is detected.
f.
The last 6 alarm codes are stored in the relay's memory. A plug-in display is
required to read them.
Notes:
a.
When an alarm occurs, the ALARM light that corresponds to the malfunction
flashes at one-second interval. The status of the other four lights indicates the
type of malfunction (see table on next page).
b.
Pressing the reset button brings the flame safeguard relay back to its normal
operating mode.
