Filling The Water Heater - Lochinvar LTN07575 Instruction Manual

No valve or other obstruction is to be placed between the
temperature-pressure relief valve and the tank. Do not
connect discharge piping directly to the drain unless a
6" (15.2 cm) air gap is provided. To prevent bodily injury,
hazard to life, or property damage, the relief valve must
be allowed to discharge water in adequate quantities
should circumstances demand. If the discharge pipe is
not connected to a drain or other suitable means, the
water flow may cause property damage.
PRECAUCIÓN
Peligro de daño provocado por agua
•
El tubo de descarga de la válvula de alivio de temperatura y
presión deben finalizar en un desagüe adecuado.
T&P Valve Discharge Pipe Requirements:
• Shall not be smaller in size than the outlet pipe size
of the valve, or have any reducing couplings or other
restrictions.
• Shall not be plugged or blocked.
• Shall not be exposed to freezing temperatures.
• Shall be of material listed for hot water distribution.
• Shall be installed so as to allow complete drainage
of both the temperature-pressure relief valve and the
discharge pipe.
• Must terminate a maximum of six inches above a
floor drain or external to building. In cold climates, it is
recommended that discharge pipe be terminated at an
adequate drain inside building.
• Shall not have any valve or other obstruction between
the relief valve and the drain.
The temperature-pressure relief valve must be manually
operated at least twice a year. Caution should be taken to
ensure the following:
1. No one is in front of or around the outlet of the
temperature-pressure relief valve discharge line.
2. The water manually discharged will not cause any
bodily injury or property damage because the water
may be extremely hot.
Burn hazard.
Hot water discharge.
Keep clear of Temperature-
Pressure Relief Valve
discharge outlet.
If, after manually operating the valve, it fails to completely
reset and continues to release water, immediately
close the cold water inlet to the water heater, follow the
draining instructions in this manual, and replace the
temperature-pressure relief valve with a properly rated/
sized new one.
Note: The purpose of a temperature-pressure relief valve
is to prevent excessive temperatures and pressures in
the storage tank. The T&P valve is not intended for the
constant relief of thermal expansion. A properly sized
thermal expansion tank must be installed on all closed
systems to control thermal expansion, see
(page 13).
If you do not understand these instructions or have any
questions regarding the temperature-pressure relief valve
call the toll free number listed on the back cover of this
manual for technical assistance.

FILLING THE WATER HEATER

Never use this water heater unless it is completely full
of water. To prevent damage to the tank, the tank must
be filled with water. Water must flow from the hot water
faucet before turning on the gas to the water heater.
To fill the water heater with water:
1. Close the water heater drain valve by turning the
handle to the right (clockwise). The drain valve is on
the lower front of the water heater.
2. Open the cold water supply valve to the water heater.
NOTE: The cold water supply valve must be left open
when the water heater is in use.
3. To insure complete filling of the tank, allow air to exit
by opening the nearest hot water faucet. Allow water
to run until a constant flow is obtained. This will let air
out of the water heater and the piping.
4. Check all water piping and connections for leaks.
Repair as needed.
15
Figure 10