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75
User Interface Display
Explanation
Installer Menu
Bo
iler Status
Control module logs successful and failed ignition attempts.
Information accessed in ‘Ignition Attempts’ Screen as shown.
Ignition attempts are stored in non-volatile memory and are
retained in event of power failure.
Figure A-1 Typical Ignition Cycle
Following control features are implemented to ensure safe and
reliable operation of Combustion System:
False Flame
Detection
If flame is detected at end of pre-spark
period (Ignit_0) than lockout will occur.
Re-ignition
If at end of safety period no flame
detected control will go to post-purge
removing unburned gas. Re-ignition
attempt started following same cycle.
Number of re-ignition attempts limited
to 3 after which lockout occurs.
Intermittent
Operation
Boiler can be firing continuously for 24
hours. Burner switched off and restart
sequence follows.
Flame out too
late
If flame detected after post purge lockout
follows.
Safety relay test
In Safety ON/OFF state correct operation
of safety relay is proved before ignition.
UL3563
High Limit
Temperature
Device
Boiler comes equipped with UL353
approved temperature high limit device.
Gas Valve de-energized when supply
temperature exceeds 203°F lockout
follows.
APPENDIX A - CONTROL MODULE
Содержание VX-050
Страница 49: ...49 13 TROUBLE SHOOTING...
Страница 51: ...51 13 TROUBLE SHOOTING...
Страница 63: ...63 14 1 Connection Diagram 050 075 100 MBH 14 WIRING DIAGRAM...
Страница 64: ...64 14 2 Schematic Diagram of Ladder Form 050 075 100 MBH 14 WIRING DIAGRAM...
Страница 65: ...65 14 3 Connection Diagram 150 200 MBH 14 WIRING DIAGRAM...
Страница 66: ...66 14 4 Schematic Diagram of Ladder Form 150 200 MBH 14 WIRING DIAGRAM...
Страница 83: ...83 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 50 75 100 MBH...
Страница 84: ...84 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 50 75 100 MBH...
Страница 85: ...85 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 150 200 MBH...
Страница 86: ...86 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 150 200 MBH...
Страница 87: ...87 NOTES...
Страница 88: ...DUNKIRK BOILERS 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com...