55
THE INDICATOR LIGHTS TRACk THE OPERATING SEqUENCE. IF THE SYSTEM LOCkS OUT, THE LIGHTS
INDICATE THE POINT IN THE SEqUENCE OF OPERATION WHERE LOCkOUT OCCURS. IF THIS TABLE
DOES NOT READILY PROVIDE THE REASON FOR BOILER MALFUNCTION OR NON-OPERATION, REFER
LIGHT
STATUS
INDICATES
Power
oN
IBC IS ENERGIzED THROUGH 24 VOLT TRANSFORMER.
oFF
IBC IS NOT ENERGIzED.
BliNkiNG
IBC RECEIVES MORE THAN 40 VAC
PUrGe
oN
IBC IS ENERGIzING THE DRAFT INDUCER AND AIR FLOW IS PROVEN.
oFF
OFF DURING PURGE CYCLE-DRAFT INDUCER IS NOT POWERED OR AIR FLOW
IS NOT PROVEN.
OFF DURING IGNITER AND RUN CYCLE-NORMAL OPERATION, PURGE
CYCLE COMPLETE.
BliNkiNG
IBC IS LOCkED OUT. PROBLEM COULD INDICATE FALSE POSITIVE PROOF
OF AIR FLOW. BLOCkED VENT OR INTAkE AIR PIPE OR FLUE WAY.
iGNiter
oN
IBC IS ENERGIzING IGNITER
oFF
IGNITER IS NOT ENERGIzED
ValVe
oN
IBC IS ENERGIzING GAS CONTROL VALVE TO OPEN.
oFF
GAS CONTROL VALVE IS CLOSED.
BliNkiNG
IBC IS LOCkED OUT. PROBLEM IS FLAME HAS NOT BEEN PROVEN IN
THREE (3) IGNITION ATTEMPTS. MAY BE DUE TO BROkEN IGNITER OR
LACk OF OR LOW FLAME SIGNAL, OR NO GAS.
FlaMe
oN
FLAME PROVEN
oFF
FLAME UNPROVEN
TROUBLESHOOTING
System Status
Summary of Contents for UB100
Page 15: ...15 Near Boiler Piping Figure 2 Single Zone Boiler Piping ...
Page 16: ...16 Figure 3 Multi zone Boiler Piping With Zone Valves Near Boiler Piping ...
Page 19: ...19 Figure 6 Diaphragm Type Expansion Tank Piping Near Boiler Piping ...
Page 20: ...20 Figure 7 Conventional closed type Expansion Tank Piping Near Boiler Piping ...
Page 27: ...27 Combustion Air and Vent Pipe Figure 11 Combustion Air and Vent Piping ...
Page 32: ...32 Electrical Wiring Figure 13 Field Wiring Connections ...
Page 53: ...53 DETAILED SEQUENCE OF OPERATION ...
Page 57: ...57 TROUBLESHOOTING CHART 2 TROUBLESHOOTING ...
Page 58: ...58 TROUBLESHOOTING CHART 3 TROUBLESHOOTING ...