A.O. Smith TC-049-R2 Service Handbook, Residential Gas And Electric Water Heater, A-7 Circuit

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	27	Training Department
©2002		Ashland City, Tennessee