A.O. Smith HW-670 Water Heater User Manual


 
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CONNECTION DIAGRAM
HWB & HW-300, -399, -420, -500 & -610
(NATURAL GAS)
SINGLE STAGE I.I.D. - ROBERTSHAW
®
GAS VALVE
HWB & HW-300, -399, -420, -520, -610 (NATURAL GAS ONLY) - CANADIAN MODELS
FIGURE 10
® Robertshaw is a registered trademark of Fulton Controls Corp.