Manual

16
C. Instructions to Put the Boiler in Operation.
1. Electronic Ignition Modules with LED indicators.
Table 6 cross-references the ignition module
terminal designations to the ignition terminal
numbers in the wiring ladder diagrams. The yellow
LED indicates the status of the ame, see Table 7.
The green LED indicates the status of the system,
see Table 8.. See Figure 15 for LED locations.
2. See Figure 17 for Continuous Ignition System
(standing pilot).
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 6: Ignition Module Terminal Cross-Reference
Table 7: Yellow LED Flame Codes
Yellow LED
Flash Code
a
Indicates
Recommended
Service Action
Heartbeat Normal Flame Signal N/A
2
Weak Flame Signal -
System will operate reliably but ame signal is
less than desired.
Note: This indication may ash temporarily
during or shortly after lightoff on some
applications.
Perform routine
maintenance to
assure optimum
ame signal.
1
Marginal Flame Signal (less than 1.1 µA) -
System may not operate reliably over time.
Service call recommended.
Note: This indication may ash temporarily
during or shortly after lightoff on some
applications.
Check gas supply,
pilot burner, ame
sense wiring, con-
tamination of ame
rod, burner ground
connection.
OFF
No Flame or Flame Signal -
below minimum threshold for system operation.
N/A
a
Flash Code Descriptions
- Heartbeat: Constant ½ second bright, ½ second dim cycles.
- The ash code number signies that the LED ashes X times at 2Hz,
remains off for two seconds, and then repeats sequence.
Figure 15: LED Locations