Electrical Wiring - Rheem RTGH-95XLP-2 Use And Care Manual

Gas Supply (cont.)
High-Altitude Installation
The water heater is certified for installations up to 2000
ft. (610 m) above sea level. The input rating of this
water heater is based on sea level operation. At higher
elevations, the actual input rate may be lower than the
value listed on the rating label due to the derating of
Natural Gas and LP Gas.

Electrical Wiring

DANGER:
Shock Hazard – Before servicing the water heater, turn
off the electrical power to the water heater at the main
disconnect or circuit breaker. Failure to do so will result in
death or serious personal injury.
WARNING:
Field wiring connections and electrical grounding must
comply with local codes or, in the absence of local codes,
with the latest edition of the National Electrical Code, ANSI/
NFPA 70, or in Canada, Canadian Electrical Code, CAN/CSA
C22.1, Part 1.
CAUTION:
Label all wires prior to disconnecting is recommended.
Wiring errors can cause personal injury, product damage,
and/or dangerous operating conditions. Verify correct
operation after servicing.
NOTICE:
• DO NOT connect power until venting installation is
complete (see Venting Installation pages 34–46).
• Wait ninety (90) seconds after power is connected for the
first time to initiate operation of the water heater.
Power consumption is up to 100 Watts during normal
operation, 3-5 Watts during standby, waiting to run, and up
to 200 Watts during the freeze protection operation.
Power Cord
The electric power supply requirement for this water
heater is 120 VAC/60 Hz, 2 amps.
A dedicated circuit is recommended for the water
heater. DO NOT connect to a GFCI or AFCI circuit.
Multiple units may be connected to a single circuit up to
the circuit rating.
DO NOT use 3-prong to 2-prong adapters. DO NOT
INSTALLATION INSTRUCTIONS
NOTICE:
For installations above 2000 ft. (610 m) elevation,
contact a qualified service technician to make the proper
altitude adjustments. See pages 72 and 73 for additional
information.
WARNING:
DO NOT install this water heater at elevations above 2000
ft. (610 m) without the proper adjustments. Please contact
your installer, local gas supplier, place of purchase, or the
Rheem Customer Service phone number listed on page 26 in
the "Call for Assistance" section.
use power strips or multiple outlet adapters.
All direct-vent gas models come with a 3-prong
power cord. Only use this power cord and a matching
grounded electrical outlet.
All outdoor gas models do not come with a power cord.
Only hard-wire to an appropriate power outlet with a
ground terminal.
Keep any excess length of the power supply cord on
the outside of the water heater.
If local codes require hard-wiring, see instructions for
"Hard-Wiring the Electrical Connections" below.
Hard-Wiring the Electrical
Connections
Wiring should be performed by a qualified electrician in
accordance with local codes.
The water heater requires a properly grounded
120 VAC/60 Hz dedicated power supply. Multiple water
heaters may be connected to a single circuit up to that
circuit's rating.
DO NOT connect grounding wire to water pipes, gas
pipes, telephone cables, lighting conductor circuits, or
to any other grounding circuits that require a GFCI or
AFCI (arc fault circuit interrupter).
An ON/OFF switch must be provided and installed for
the incoming 120 VAC power supply.
Wire the water heater exactly as shown in the wiring
diagram. This wiring diagram can also be found inside
the water heater cover panel.
The green screw is provided in the enclosure for a
grounding connection.
Connect the live wire to the black wire and neutral wire
to the white neutral wire.
57