24 www.
americanwaterheater .com
328767-001
must be readily accessible. Install in accordance with the
“Gas Piping” section. Refer to the current edition of the
“National Fuel Gas Code”, ANSI Z223.1/NFPA 54
.
HOT-WATER
OUTLET
COLD-
WATER
INLET
UNION
TEMPERATURE-
PRESSURE
RELIEF VALVE
DISCHARGE PIPE
(DO NOT CAP
OR PLUG)
6” MAX. AIR
GAP BELOW
DISCHARGE
PIPE
METAL
DRAIN
PAN
FLOOR
DRAIN
DRAIN
VALVE
SHUT-OFF VALVE
SOME
COMPONENTS
NOT SHOWN
FOR CLARITY.
SIDE TAP
(OUTLET)
SIDE TAP
(INLET)
Figure 19
FILLING THE WATER HEATER
•
Avoid water heater damage.
•
Fill tank with water before operating.
Property Damage Hazard
CAUTION
•
Do not insert the power cord into the electrical
receptacle until the heater has been fully installed.
•
Never use this water heater unless it is completely full
of water. To prevent damage to the tank, the tank must
be
fi
lled with water. Water must
fl
ow from the hot-water
faucet before turning “ON” gas to the water heater.
To
fi
ll the water heater with water:
1. Close the water heater drain valve by turning handle
to the right (clockwise). The drain valve is on the lower
front of water heater (see Figure 19).
2. If the heater is equipped with plumbing side taps and
they are not connected to piping, ensure the side taps
have been closed with pipe plugs.
3. Open all hot-water faucets served by the water heater
to allow air to escape from the tank and the water
piping. Ensure any shut-off valves between the heater
and the faucets are the open position.
4. Open the cold-water supply valve to the water heater.
Notes:
• The cold-water supply valve must be left open when
the water heater is in use.
• Avoid water leakage when
fi
lling the tank. Do not
allow the insulation of the water heater to get wet as
water can reduce the effectiveness of the insulation.
5. To ensure complete
fi
lling of the tank, allow air to exit
by opening nearest hot-water faucet. Allow water to
run until a constant
fl
ow is obtained. This will let air
out of the water heater and the piping.
6. Check all water piping and connections for leaks.
Repair as needed.
