Install Instructions

24
H. Operating Instructions
1. See Figure 13 to place boiler in operation.
2. Electronic Ignition Modules with LED indicators.
Table 7 cross-references the ignition module
terminal designations to the ignition terminal
Figure 14: LED Locations
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 7: Ignition Module Terminal Cross-Reference
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 appli-
cations.
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 appli-
cations.
Check gas supply, pilot burner, ame
sense wiring, contamination 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 flash code number signifies that the LED flashes X times at 2Hz, remains off for two
seconds, and then repeats sequence.
numbers in the wiring ladder diagrams. The yellow
LED indicates the status of the flame, see Table 8.
The green LED indicates the status of the system,
see Table 9. See Figure 14 for LED locations. See
Figure 15 for Troubleshooting Guide.
Table 8: Yellow LED Flame Codes