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23
Figure 22: LED Locations
Yellow LED
Flash Code
a
Indicates
Recommended Service Action
Heartbeat
Normal Flame Signal
N/A
2
Weak Flame Signal -
System will operate reliably but flame signal is
less than desired.
Note
: This indication may flash temporarily
during or shortly after lightoff on some
applications.
Perform routine maintenance to
assure optimum flame signal.
1
Marginal Flame Signal (less than 1.1 µA) -
System may not operate reliably over time.
Service call recommended.
Note
: This indication may flash temporarily
during or shortly after lightoff on some
applications.
Check gas supply, pilot burner, flame
sense wiring, contamination of flame
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.
Table 9: Yellow LED Flame Codes
Содержание Minuteman II
Страница 6: ... Figure 4 Recommended Boiler Piping For Circulator Zoned Heating Systems ...
Страница 7: ... Figure 5 Recommended Water Piping for Zone Valve Zoned Heating Systems ...
Страница 22: ...22 Figure 21 Operating Instructions ...
Страница 25: ...25 Figure 23 Troubleshooting Guide ...
Страница 30: ...30 Figure 27 Burner and Flueway Cleaning ...
Страница 33: ...33 SERVICE RECORD DATE SERVICE PERFORMED ...
Страница 34: ...34 ...
Страница 35: ...35 ...
Страница 37: ...37 ...
Страница 38: ...38 ...
Страница 40: ...40 ...
Страница 46: ...46 SERVICE RECORD DATE SERVICE PERFORMED ...