A.O. Smith APW015DW Service Handbook

OPERATION & SERVICE
Servicing should only be performed by a Qualified Service Agent
18
Single Phase Wiring - 3 Pole Contactor
The illustrations below show how six wire heating elements (page 17) are wired to 3 pole
contactors on water heaters connected to a single phase power supply. See the
“Contactors” section of this manual - pages 34 - 38.
Heating Element Flange - End View
Two ends
of loop 1
Two ends
of loop 2
Two ends
of loop 3
Connection Diagram Wiring Diagram
3 Pole
Contactor
Three loops
of one heating element
Single phase (1Ø)
power supply
Note: these two lines
exiting the bottom
of the contactor
represent six
wiring leads from
a heating element
as shown in the
connection diagram
on the left.
Note: middle pole
of the three pole
contactor is not used
on models configured
for single phase (1Ø
power.

A.O. Smith APW015DW Specifications

General

Brand	A.O. Smith
Model	APW015DW
Category	Water Heater
Language	English