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15
SECTION V: WATER CONNECTIONS
WARNING
Failure to install and maintain a new, listed temperature and pressure relief valve will release the manufacturer from
any claim, which might result from excessive temperature and pressures.
Hydrogen gas can be produced in an operating water heater that has not had water drawn from the tank for a long
period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE. To prevent the
possibility of injury under these conditions, we recommend the hot water faucet to be open for several minutes at the
kitchen sink before you use any electrical appliance, which is connected to the hot water system. If hydrogen is
present, there will be an unusual sound such as air escaping through the pipes as hot water begins to flow. Do not
smoke or have open flame near the faucet at the time it is open.
Keep clear of the combination temperature and pressure relief valve discharge line outlet. The discharge may be hot
enough to cause scald injury. The water is under pressure and may splash.
CAUTION
If sweat fittings are to be used, DO NOT apply heat to the nipples in front or side of the water heater. Sweat the tubing
to the adapter before fitting the adapter to the water connections. It is imperative that heat is not applied to the nipples
containing a plastic liner.
INSTRUCTIONS FOR CONNECTIONS
1. BEFORE PROCEEDING WITH THE INSTALLATION, CLOSE THE MAIN WATER SUPPLY VALVE. After shutting
off the main water supply, open a faucet to relieve the water line pressure to prevent any water from leaking out of the
pipes while making the water connections to the water heater. The COLD water inlet and HOT water outlet are
identified on the water heater. Make the proper plumbing connections between the water heater and the plumbing
system to the house. Install a shut-off valve in the cold water supply line.
2. If this water heater is installed in a closed water supply system, such as the one having a back-flow preventer in the
cold water supply, provisions must be made to control thermal expansion. DO NOT operate this water heater in a
closed system without provisions for controlling thermal expansion. Warranties do not cover damages from thermal
expansion such as pressure bulges and/or deformities. Your water supplier or local plumbing inspector should be
contacted on how to control this situation.
3. After installation of the water lines, open the main water supply valve and fill the water heater. While the water heater
is filling, open several hot water faucets to allow air to escape from the water system. When a steady stream of water
flows through the faucets, close them and check all water connections for possible leaks.
4. Never operate the water heater without first being certain it is filled with water.
SCALDING
This water heater can deliver scalding temperature water
at any faucet in the system. Be careful whenever using
hot water to avoid scalding injury. Certain appliances such
as dishwashers and automatic clothes washers may
require increased temperature water. By setting the
thermostat on this water heater to obtain the increased
temperature water required by these appliances, you
might create the potential for scald injury. To protect
against injury, you should install an ASSE approved
mixing valve in the water system. This valve will reduce
point of discharge temperature by mixing cold and hot
water in branch supply lines. Such valves are available
from the local plumbing supplier. The following chart
details the relationship of water temperature and time with
regard to scald injury and may be used as a guide in
determining the safest water temperature for your
applications.
(52°C) can cause severe burns
are at highest risk of being
Children, disabled and elderly
instantly or death from scalds.
Water temperature over 125°F
Feel water before bathing or
before setting temperature
available, contact local plumbing
supplier.
showering.
Temperature limiting valves are
Review this instruction manual
at water heater.
scalded.