GE GEH50DXSRGA - Manual (Page 17)

Installation Instructions
17
TO fILL THE WATER HEATER
WARNING:
The tank must be full of water
before heater is turned on. The water heater warranty
does not cover damage or failure resulting from
operation with an empty or partially empty tank.
Make certain the drain valve is completely closed.
Open the shut-off valve in the cold water supply line.
Open each hot water faucet slowly to allow the air to
vent from the water heater and piping.
A steady flow of water from the hot water faucet(s)
indicates a full water heater.
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 latest edition of
national Electrical Code AnSI/nFPA 70.
The water heater is completely wired to the junction box at the
top of the water heater. An opening for 1/2” or 3/4” electrical
fitting is provided for field wiring connections.
The voltage requirements and wattage load for the water
heater are specified on the rating label on the front of the
water heater.
The branch circuit wiring should include either:
1. Metallic conduit or metallic sheathed cable approved
for use as a grounding conductor and installed with
fittings approved for the purpose.
2. nonmetallic 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.
WARNING:
Proper ground connection is
essential. The presence of water in the piping and water
heater does not provide sufficient conduction for a
ground. Nonmetallic piping, dielectric unions, flexible
connectors, etc., can cause the water heater to be
electrically isolated.
Water heater junction box
Ground screw
Junction box cover
240V
L2
L1
NOTICE:
do not mis-wire electrical connections. 240V AC must be
applied across L1 and L2 wires as shown in ‘Water heater
junction box’ illustration. Failure to do so will VOId the
warranty, and can result in 120V applied to water heater,
which may damage the compressor or other electrical
components.
If 4-conductor wire is supplied to the water heater, cap the
neutral, and connect the remaining wires as illustrated.
nOTE REGARdInG uTILITY POWER-MAnAGEMEnT dEVICES
(Sometimes called Peak Load Reduction Switches):
Some power-management switching devices or even some
basic timer switches exist that REduCE voltage from 240V
to 120V during high-electricity-demand periods. These
devices must be removed from the circuit providing power
to the water heater because of the potential unit damage
noted above.
However, switching devices which cut power from 240V to
0V on a periodic basis are acceptable.