Thermal Expansion - State Water Heaters SSE-5 Instruction Manual

relief valve must not be removed from its designated opening nor
plugged. The temperature-pressure relief valve must be installed
Install discharge piping so that any discharge will exit only within 6
discharge opening must not be blocked or reduced in size under
use of more than four elbows can cause restriction and reduce the
discharge capacity of the valve.
No valve or other obstruction is to be placed between the relief valve
and the tank. Do not connect discharge piping directly to the drain
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
or have any reducing couplings or other restrictions.
temperature-pressure relief valve and the discharge pipe.
external to the building. In cold climates, it is recommended that
the discharge pipe be terminated at an adequate drain inside
the building.
valve and the drain.
The temperature-pressure relief valve must be manually operated
one is in front of or around the outlet of the temperature-pressure
will not cause any bodily injury or property damage because the
water may be extremely hot. 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
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.
Once the water heater is installed and filled with water, check
instructions in the Maintenance section of this manual.
WATER LINE CONNECTIONS
recommended. The water heater may be installed by itself, or
with a separate storage tank, on both single and two-temperature
systems. When used with a separate storage tank, the circulation
may be either by gravity or by means of a circulating pump. When
should be slow so that there will be a minimum of turbulence inside
the heater.
CLOSED WATER SYSTEMS
Water supply systems may, because of code requirements or such
conditions as high line pressure, among others, have installed devices
preventers. Devices such as these cause the water system to be a
closed system.

THERMAL EXPANSION

volume of water grows there will be a corresponding increase in
water pressure due to thermal expansion. Thermal expansion can
covered under the limited warranty. Thermal expansion can also
water discharged from the valve due to excessive pressure build
up. This condition is not covered under the limited warranty. The
temperature-pressure relief valve is not intended for the constant
relief of thermal expansion.
closed systems to control the harmful effects of thermal expansion.
expansion tank installed.
9