Install Instructions

18
Table 11: Green LED Status Codes
Ignition Module
Terminal Designation
Wiring Ladder Diagram Terminal Number
MV 1
MV/PV 2
PV 3
GND 4
24V (GND) 5
24V 6
SPARK 9
Table 10: Ignition Module Terminal Cross-Reference
Green LED
Flash
Code
a
Indicates Next System Action Recommended Service Action
OFF No “Call for Heat” N/A None
Flash Fast Power up - internal check N/A None
Heartbeat
Normal startup - ignition sequence
started (including prepurge)
N/A None
4 Seconds ON
then “x” ashes
Device in run mode.
“x” = ame current to the nearest µA.
N/A None
2
5 minute Retry Delay
- Pilot ame not detected during trial
for ignition
Initiate new trial for ignition after
retry delay completed.
If system fails to light on next trial for
ignition check gas supply, pilot burner,
spark and ame sense wiring, ame rod
contamination or out of position, burner
ground connection.
3
Recycle
- Flame failed during run
Initiate new trial for ignition. Flash
code will remain through the igni-
tion trial until ame is proved.
If system fails to light on next trial for igni-
tion, check gas supply, pilot burner, ame
sense wiring, contamination of ame rod,
burner ground connection.
4 Flame sensed out of sequence
If situation self corrects within 10
seconds, control returns to normal
sequence. If ame out of sequence
remains longer than 10 seconds,
control will resume normal opera-
tion 1 hour after error is corrected.
Check for pilot ame. Replace gas valve
if pilot ame present. If no pilot ame,
cycle “Call for Heat.” If error repeats,
replace control.
6 Control Internal Error
Control remains in wait mode.
When the fault corrects, control
resumes normal operation.
Cycle “Call for Heat”. If error repeats,
replace control.
7 Flame rod shorted to ground
Control remains in wait mode.
When the fault corrects, control
resumes normal operation.
Check ame sense lead wire for damage
or shorting. Check that ame rod is
in proper position. Check ame rod
ceramic for cracks, damage or tracking.
8
Low secondary voltage supply- (be-
low 15.5 Vac)
Control remains in wait mode.
When the fault corrects, control
resumes normal operation.
Check transformer and AC line for proper
input voltage to the control. Check with
full system load on the transformer.
a
Flash Code Descriptions:
- Flash Fast: rapid blinking
- Heartbeat: Constant ½ second bright, ½ second dim cycles.
- 4 second solid on pulse followed by “x” 1 second ashes indicates ame current to the nearest µA. This is only available in
run mode.
- A single ash code number signies that the LED ashes X times at 2Hz, remains off for two seconds, and then repeats the
sequence.
VII. System Start-up (continued)