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Lighting Instructions for the G(B/W) 200 through 500 models

THE UNIT SHOULD NOT BE INSTALLED DIRECTLY ON A
CARPETED FLOOR.  A FIRE HAZARD MAY RESULT.  Instead,
the boiler must be installed on the A. O. Smith Combustible Floor
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
installed in a carpeted alcove, the entire floor must be covered with
concrete blocks, or use the A. O. Smith Combustible Floor Kit Base.

FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY
OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST NEVER

BE PLACED ON OR ADJACENT TO THE BOILER.  OPEN
CONTAINERS OF FLAMMABLE MATERIAL SHOULD NOT BE
STORED OR USED IN THE SAME ROOM WITH THE BOILER.

Light the unit in accordance with the instructions on the lighting and
operating label attached to the boiler.  These instructions are
repeated on the following two pages.

Summary of Contents for GB/GW-200

Page 1: ...TER SUPPLY USER S INFORMATION MANUAL A DIVISION OF A O SMITH CORPORATION EL PASO TX MC BEE SC RENTON WA STRATFORD ONTARIO VELDHOVEN THE NETHERLANDS www hotwater com GB GW 200 300 400 500 650 750 SERIE...

Page 2: ...oiler is installed in a carpeted alcove the entire floor must be covered with concrete blocks or use the A O Smith Combustible Floor Kit Base FLAMMABLE ITEMS PRESSURIZED CONTAINERS OR ANY OTHERPOTENTI...

Page 3: ...3 Lighting Instructions for the G B W 650 and 750 models...

Page 4: ...thin 4 seconds the gas valve is immediately closed and the ignition control board will return to step 2 unless jumper J30 is in place ON see figure 2 8 If a flame is confirmed the control will enter t...

Page 5: ...40 F and once again increase decrease in value for as long as the ADJUST push button is pressed Switching Differential Adjustment Procedure To facilitate proper operation and maximize appliance perfor...

Page 6: ...will now illustrate the current number of cycles the appliance has cycled through 5 The display will automatically resort to illustrating the outlet tem perature TANK PROBE INSTALLATION PROCEDURE A ta...

Page 7: ...tion according to the particular appliance operating state In cases where prob lems or a lockout occurs the appropriate LED s will illuminate indi cating the general area where the problem exists A de...

Page 8: ...rosion and leakage Inspect the vent terminations for corrosion and foreign matter which may be blocking the exhausting flue products Call a qualified service agent to replace or repair any corroded or...

Page 9: ...9 FIGURE 3 POINT TO POINT WIRING DIAGRAM...

Page 10: ...ng any warranty of merchantability imposed on the sale of this boiler under state law are limited to one 1 year duration for the boiler or any of its parts Some states or provinces do not allow limita...

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