BTC 120-500 - AO Smith Water Heaters
BTC 120-500 - AO Smith Water Heaters
BTC 120-500 - AO Smith Water Heaters
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<strong>BTC</strong> TANK TYPE HEATERS<br />
SERVICE WORKBOOK<br />
Insufficient make-up air is a major cause of combustion problems. One common example is in<br />
a restaurant installation where exhaust vent equipment was not considered in sizing make-up air<br />
requirements. This may result in air being backdrafted by the restaurant exhaust equipment<br />
through the heater causing flue gas spillage, flame roll out, improper combustion, inconsistent<br />
pilot operation, and/or erratic heater shut down.<br />
A.O. <strong>Smith</strong> <strong>Water</strong> Products<br />
Irving, Texas ©1998<br />
9<br />
Service Workbook<br />
Training Department
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