A.O. Smith APW015DW Service Handbook

OPERATION & SERVICE
Servicing should only be performed by a Qualified Service Agent
22
Three Phase Y Configuration - 3 Pole Contactor
The illustrations below show how three wire (Y configured) heating elements (page 17) are
wired to 3 pole contactors on water heaters connected to a three 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
Three phase (3Ø)
power supply
Metal bar that joins
or splices together
one end of each loop.
Wiring leads from
heating element
Metal bar that joins
or splices together
one end of each loop.

A.O. Smith APW015DW Specifications

General

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