9
or external to the building. In cold climates, it is recommended that
the discharge pipe be terminated at an adequate drain inside the
part. The discharge opening must not be blocked or reduced in size
or use of more than four elbows can cause restriction and reduce the
No valve or other obstruction is to be placed between the
provided. To prevent bodily injury, hazard to life, or property damage,
water in adequate quantities should circumstances demand. If the
discharge pipe is not connected to a drain or other suitable means,
CAUTION
• Temperature-Pressure Relief Valve discharge
pipe must terminate at adequate drain.
Water Damage Hazard
T&P Valve Discharge Pipe Requirements:
valve, or have any reducing couplings or other restrictions.
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.
DANGER
• Burn hazard.
• Hot water discharge.
• Keep clear of Temperature
Pressure Relief Valve
discharge outlet.
water manually discharged will not cause any bodily injury or
property damage because the water may be extremely hot. If after
manually operating the , 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-
Note:
prevent excessive temperatures and pressures in the storage tank. The
Thermal Expansion on page 9.
If you do not understand these instructions or have any questions
free number listed on the back cover of this manual for technical
assistance.
WATER LINE CONNECTIONS
inlet and outlet connections, di-electric unions are 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 a circulating pump is used it is
a minimum of turbulence inside the water 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 due
to excessive pressure build up. This condition is not covered under
intended for the constant relief of thermal expansion.
closed systems to control the harmful effects of thermal expansion.
expansion tank installed.