RESIDENTIAL ELECTRIC WATER HEATER
SERVICE HANDBOOK
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Technical Training Department 16 of 36 Residential Electric Svc Handbook
Ashland City, Tennessee ©2004 STC082
A – 6 CIRCUIT (INTERLOCK OR NON-SIMULTANEOUS)
COMPONENTS WIRING DIAGRAM
A-6 Circuit
• 2 Elements
• 2 Thermostats
• 1 High Limit
A-6 Circuit - Standard on dual
element water heaters non-
simultaneous / interlocked operation
.
UPPER THERMOSTAT
WH10-7
LOWER THERMOSTAT
WH9-2
A-6 WIRING CIRCUIT
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