Rheem Double Element Residential Electric Models, Инструкция по использованию и уходу

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8
Installing the water heater.
NOTICE: This guide recommends minimum branch circuit sizing and wire size. Refer to wiring diagrams in this manual for
field wiring connections.
Branch Circuit Sizing and Wire Size Guide
Total Water Recommended Over Current Protection Copper Wire Size AWG Based
Heater Wattage (fuse or circuit breaker amperage rating) on N.E.C. Table 310-16 (75°C)
208V 240V 277V 480V 208V 240V 277V 480V
3,000 20 20 --- --- 12 12 --- ---
3,800 25 20 --- --- 10 12 --- ---
4,000 25 25 --- --- 10 10 --- ---
4,500 30 25 --- --- 10 10 --- ---
CAUTION: The presence of
water in the piping and water
heater does not provide
sufficient conduction for a
ground. Non-metallic piping,
dielectric unions, flexible
connectors etc. can cause the
water heater to be electrically
isolated.
Electrical Connections
A separate branch circuit with copper
conductors, overcurrent protective device
and suitable disconnecting means must be
provided by a qualified electrician.
All wiring must conform to local codes, or
the latest edition of the Canadian
Electrical Code. Refer to wiring diagrams
in the back of this manual for wiring
connections.
The voltage requirements and wattage
load for the water heater are specified
on the rating plate on the front of the
water heater.
The water heater is completely wired
to the junction bracket inside the top
access panel on front of the water heater.
An opening for 1.2 cm (1/2”)
or 1.9 cm (3/4”) electrical fitting is
provided for field wiring connections.
The branch circuit wiring should include
either:
Metallic conduit or metallic sheathed
cable approved for use as a
grounding conductor and installed
with fittings approved for the
purpose.
Non-metallic sheathed cable,
metallic conduit or metallic sheathed
cable not approved for use as a
ground conductor shall include a
separate conductor for grounding. It
should be attached to the ground
terminals of the water heater and the
electrical distribution box.
Water heater junction bracket.
Ground
screw
Wire connections
Junction
bracket
Conduit
connector
WARNIN
G
WARNING
Wire connections
Junction
box cover
Conduit
connector
Water heater junction box (Alternate construction)
Ground
screw