46
FIG. 43
SCHEMATIC WIRING DIAGRAM - EI CONTROL SYSTEM (V88 GAS TRAIN)
U.S.A. 5010B THRU 5014B
CANADA 5006B THRU 5014B
SEQUENCE OF OPERATION
WHEN OPERATING CONTROL CLOSES, THE ELECTRIC SPARK AND PILOT VALVE ARE AUTOMATICALLY
ENERGIZED. THE SENSING PROBE PROVES THE PRESENCE OF THE PILOT FLAME. INTERNAL SWITCH
ACTION DE-ENERGIZES THE SPARK AND ENERGIZES THE MAIN GAS VALVES STARTING MAIN BURNER
OPERATION. WHEN THE OPERATING CONTROL IS SATISFIED THE PILOT GAS VALVE AND THE MAIN GAS
VALVES ARE DE-ENERGIZED STOPPING THE BURNER OPERATION.
IN THE EVENT OF EXCESSIVE STEAM PRESSURE (STEAM BOILER) OR EXCESSIVE BOILER WATER
TEMPERATURE (WATER BOILER), THE HIGH LIMIT CONTROL WILL DE-ENERGIZE THE PILOT GAS VALVE
AND THE MAIN GAS VALVES STOPPING BURNER OPERATION.
THE LOW WATER CUT-OFF WILL ALSO STOP BURNER OPERATION IF THE WATER LEVEL IN THE BOILER
SHOULD DROP BELOW THE LOWEST SAFE LEVEL.
SecTiON iV - OPeRATiON (continued)
Summary of Contents for 5006B
Page 10: ...10 Fig 6 ARRANGEMENT OF SECTIONS AND CANOPY S SECTION III INSTALLATION INSTRUCTIONS continued...
Page 22: ...22 Fig 22 SECURING OF CANOPY DRAFTHOOD SECTION III INSTALLATION INSTRUCTIONS continued...
Page 23: ...23 Fig 23 CANOPY DRAFTHOOD MOUNTING DIAGRAM SECTION III INSTALLATION INSTRUCTIONS continued...
Page 68: ...68 Fig 58 PILOT LOCATIONS SECTION V SERVICE continued...
Page 72: ...72 SERVICE RECORD DATE SERVICE PERFORMED...
Page 74: ...74 Fig 64 BASE PARTS 5006B Thru 5014B SECTION VI REPAIR PARTS continued...
Page 76: ...76 Fig 65 BASE PARTS 5015B thru 5026B SECTION VI REPAIR PARTS continued...
Page 78: ...78 Fig 66 INTEGRAL CANOPY DRAFTHOODS SECTIONS SECTION VI REPAIR PARTS continued...
Page 82: ...82 Fig 67 JACKETS SECTION VI REPAIR PARTS continued...
Page 111: ...111 SERVICE RECORD DATE SERVICE PERFORMED...
Page 112: ...112...
