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49-6000121 Rev. 0
INSTALLATION INSTRUCTIONS
Installation Instructions
INSULATION
The manufacturer’s warranty does not cover any
damage or defect caused by installation, attachment
or use of any type of energy-saving or other
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the manufacturer) into, onto or in conjunction with the
water heater. The use of unauthorized energy-saving
devices may shorten the life of the water heater and
may endanger life and property.
The manufacturer disclaims any responsibility for
such loss or injury resulting from the use of such
unauthorized devices.
Application of any external insulation, blankets
or water pipe insulation to this water heater will
require careful attention to the following:
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or ventilation valve.
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attached to the water heater or attempt to relocate
them on the exterior of the insulation blanket.
WATER SUPPLY CONNECTIONS
Refer to the illustration below for suggested typical
installation. The hot and cold water connections are
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NOTE: Install a shut-off valve in the cold water line
near the water heater. This will enable easier service
or maintenance of the unit later.
NOTICE: Do not apply heat to the HOT or COLD
water connections. If sweat connections are
used, sweat tubing to adapter before fitting
the adapter to the cold water connections on
heater. Any heat applied to the hot or cold
water connection will permanently damage the
internal plastic lining in these ports.
THERMAL EXPANSION
Determine if a check valve exists in the inlet water
line. It may have been installed in the cold water line
as a separate backflow preventer, or it may be part
of a pressure-reducing valve, water meter or water
softener. A check valve located in the cold water inlet
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water system.
As water is heated, it expands in volume and creates
an increase in the pressure within the water system.
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the capacity of the water heater flows back into the
city main where the pressure is easily dissipated.
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expanding water from flowing back in to the main
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create a rapid and dangerous pressure increase in the
water heater and system piping. This rapid pressure
increase can quickly reach the safety setting of the
relief valve, causing it to operate during each heating
cycle. Thermal expansion, and the resulting rapid and
repeated expansion and contraction of components
in the water heater and piping system, can cause
premature failure of the relief valve, and possibly the
heater itself. Replacing the relief valve will not correct
the problem!
The suggested method of controlling thermal
expansion is to install an expansion tank in the cold
water line between the water heater and the check
valve. During installation, ensure the expansion
tank is properly supported to relieve weight loads off
connection pipes. The expansion tank is designed
with an air cushion built in that compresses as the
system pressure increases, thereby relieving the
over-pressure condition and eliminating the repeated
operation of the relief valve. Other methods of
controlling thermal expansion are also available.
Contact your installing contractor, water supplier, or
plumbing inspector for additional information regarding
this subject.
40 inch
Expansion Tank:
10 gallons, GepSpring Solar 50
7 gallons, GeoSpring Solar 40
5 gallons, GeoSpring Solar 25
1
2
3
4
6
3/4" NPT Hot
Water Outlet
3/4" NPT Cold
Water Inlet
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5 gallons or greater, GeoSpring Solar 25
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