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Manafacture: Bryan s File size: 550.11 kb File name: 24eccce0-7bcf-47a8-bb1b-7963a507380d.pdf Language of manual:

WARNING THE MAIN MANUAL GAS SHUT-OFF VALVE MUST HAVE BEEN CLOSED FOR AT LEAST FIVE (5) MINUTES BEFORE LIGHTING. This waiting period is an important safety step. Its purpose is to permit gas that might have accumulated in the combustion chamber to clear. IF YOU DETECT GAS AT THE END OF THE PERIOD DO NOT PROCEED WITH LIGHTING. RECOGNIZE THAT GAS ODOR, EVEN IF IT SEEMS WEAK, MAY INDICATE PRESENCE OF ACCUMULATED GAS SOMEPLACE IN THE AREA WITH A RISK OF FIRE OR EXPLOSION. WARNING THERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH AS GAS WATER BOILERS IN ROOMS, GARAGES OR OTHER AREAS WHERE GASOLINE AND OTHER FLAMMABLE LIQUIDS ARE USED OR STORED, OR ENGINE-DRIVEN EQUIPMENT OR VEHICLES ARE STORED, OPERATED OR REPAIRED. FLAMMABLE VAPORS ARE HEAVY AND TRAVEL ALONG THE FLOOR AND MAY BE IGNITED BY THE BOILER'S MAIN BURNER FLAMES CAUSING FIRE OR EXPLOSION. Some local codes permit operation of gas appliances if installed 18 inches or more above the floor. This may reduce the risk if location in such an area cannot be avoided. INDEX PAGE GENERAL . . . . . . . . . . . . . . . . . . . . . . . 1 LIGHTING INSTRUCTIONS . . . . . . . . 2 - 3 OPERATING SEQUENCE, IGNITION CONTROL AND DIA-SCAN II INSTRUCTIONS. . . . . . . . . . . . . . 4 - 8 MAINTENANCE . . . . . . . . . . . . . . 8 CONNECTION DIAGRAM 9 WARRANTY. . . . . . . . . . . . . . . . . . . . . . 10 A DIVISION OF A.O. SMITH CORPORATION EL PASO, TX MC BEE, SC RENTON, WA STRATFORD, ONTARIO VELDHOVEN, THE NETHERLANDS PLEASE KEEP THESE INSTRUCTIONS ADJACENT TO BOILER AND PRINTED IN U.S.A. 2527 300 NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE. PART NO. 210890-000 REV. 1 SUPERSEDES PART NO. 210311-000 THE UNIT SHOULD NOT BE INSTALLED DIRECTLY ON A BE PLACED ON OR ADJACENT TO THE BOILER. OPEN CARPETED FLOOR. A FIRE HAZARD MAY RESULT. Instead, CONTAINERS OF FLAMMABLE MATERIAL SHOULD NOT BE the boiler must be installed on the A. O. Smith Combustible Floor STORED OR USED IN THE SAME ROOM WITH THE BOILER. Kit Base or concrete blocks extending beyond the full width and depth of the boiler by at least 3 (76.2mm) inches. If the boiler is Light the unit in accordance with the instructions on the lighting and installed in a carpeted alcove, the entire floor must be covered with operating label attached to the boiler. These instructions are concrete blocks, or use the A. O. Smith Combustible Floor Kit Base. repeated on the following two pages. FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST NEVER Lighting Instructions for the G(B/W) 200 through 500 models 2 Lighting Instructions for the G(B/W) 650 and 750 models . 3 ELECTRONIC HOT SURFACE 8. If a flame is confirmed, the control will enter the heating IGNITION CONTROL BOARD mode where it will continue heating until the set-point tem- ALL MODELS -The WHC1502 ignition control board is a fully integrated, state of the art electronic control system. The ignition control board includes a microprocessor, which governs all tem...

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