Specifications

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Black
Black
Blue
Red
Blue
Control Circuit - The standard single-phase control circuit consists of a high limit control switch with a reset buon,
upper thermostat, lower thermostat, two heang elements and wires. The upper thermostat rst sends electrical
energy to the upper element unl the water temperature in the upper third of the tank reaches the thermostat
seng. Power is then transferred to the lower element unl the remaining water reaches the lower thermostat
seng. If the water temperature exceeds 170°F the high limit control switch will trip shung o power to the
elements. Single element water heaters have one element mounted at the boom of the tank controlled by a single
thermostat and high limit switch.
Upper
Thermostat
&
High Limit
Control
Standard Electric Water Heater Parts
Yellow
Upper
Element
Lower
Thermostat
Yellow
Lower
Element
Reset
Buon
TOD Wiring Diagram
Reset
Buon
APCOM Wiring Diagram
Black
Yellow
Blue
Upper
Thermostat
&
High Limit
Control
Red
Black
Upper
Element
Lower
Element
Blue
Yellow