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RESIDENTIAL GAS AND ELECTRIC WATER HEATER
SERVICE HANDBOOK
Residential Electric – continued
A-7 Circuit
2 Elements
2 Thermostats
2 High Limits
4 Wire
WIRING DIAGRAM
A-7 – Post 1995
Four wire circuit for non-simultaneous element operation.
This circuit permits off-peak meter usage and connection to 3 phase supply circuit.
*Interrupts power to lower element
during “peak” charges time of day.
A.O. Smith Water Products Company Technical Training Department
©2005 Ashland City, TN
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