A.O. Smith DSE-5, Руководство по обслуживанию

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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.