A.O. Smith DB/DW-720-1810 warranty

NOTES:

1.BUILDING TEMPERATURE CONTROLS SUPPLY ELECTRIC POWER TO BUILDING CIRCULATOR.

2.MAIN FLOW SWITCH PROVES MAIN WATER FLOW BEFORE ENERGIZING, SEQUENCING AND RESETTING CONTROLS.

3.OUTDOOR THERMOSTAT REQUIRED IF BUILDING CONTROLS DO NOT PROVIDE AUTOMATIC SHUT-DOWN OF RESET CONTROLS DURING WARM WEATHER.

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