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Determine Installati n Locati n
You must ensure that clearances will be met and that
the vent length will be within required limits. Consider
the installati n environment, water quality, and need
for freeze protecti n. Requirements for the gas line,
water lines, electrical connecti n, and condensate
disposal can be found in their respec ve installati n
secti ns of this manual.
Water Quality
Considerati n of care for your water heater should
include evaluati n of water quality.
The water must be potable, free of corrosive chemicals,
sand, dirt, or other contaminates. It is up to the
installer to ensure the water does not contain corrosive
chemicals, or elements that can affe t or damage the
heat exchanger. Water that contains chemicals
exceeding the levels below affec and damage the heat
exchanger. Replacement of the heat exchanger due to
water quality damage is not covered by the warranty.
Total Hardness
Aluminum *
Chlorides *
Copper *
Dissolved Carbon Dioxide (CO
)
2
Iron *
Manganese *
pH *
TDS (Total Dissolved Solids) *
Zinc *
* Source: Part 143 Na onal Secondary Drinking Water
Regula ons
If you install this water heater in an area that is known
to have hard water or that causes scale build-up the
water must be treated and the heat exchanger ushed
regularly.
When scale build-up in the heat exchanger begins to
a ect the performance of the water heater, a diagnostic
code "LC#" will display. Flush the heat exchanger to
prevent damage to it. Scale build up is caused by hard
water set at a high temperature.
Rinnai o ers Southeastern Filtrati n's "ScaleCutt r
Water Conditi ning System" that o ers superior lime
scale preventi n and corrosion control by feeding a
blend of control compounds into the cold water supply.
Part Number
103000038
103000039
6
Maximum Level
Up to 200 mg / L
Up to 0.2 mg / L
Up to 250 mg / L
Up to 1.0 mg / L
Up to 15.0 mg / L or PPM
Up to 0.3 mg / L
Up to 0.05 mg / L
6.5 to 8.5
Up to 500 mg / L
Up to 5 mg / L
Descrip on
Southeastern Filtratrion
ScaleCu er System 3/4" Feed
ScaleCu er Refill
KBP Series Manual
Environment
Air surrounding the water heater, ventin , and vent
terminati n(s) is used for combusti n and must be free
of any compounds that cause corrosion of internal
components. These include corrosive compounds that
are found in aerosol sprays, detergents, bleaches,
cleaning solvents, oil based paints/ varnishes, and
refrigerants. The air in beauty shops, dry cleaning
stores, photo processing labs, and storage areas for pool
supplies often contains these compounds. Therefore it
is recommended that outdoor models be used for these
locati ns.
The water heater, venti g, and vent terminati n(s)
should not be installed in any areas where the air may
contain these corrosive compounds. If it is necessary for
a water heater to be located in areas that may contain
corrosive compounds, the following instructi ns are
strongly recommended.
IMPORTANT CONSIDERATIONS FOR:
Indoor/Internal Water Heaters
DO NOT Install in areas where air for combusti n
can be contaminated with chemicals.
Before installati n, consider where air has the
ability to travel within the building to the water
heater.
Where possible, install the water heater in a sealed
closet so that it is protected from the potentia of
contaminated indoor air.
Chemicals that are corrosive in nature should not
be stored or used near the water heater.
Outdoor/External Water Heaters and Vent
Terminati ns of Indoor/Internal Water Heaters
Install the water heater as far away as possible
from exhaust vent hoods.
Install as far away as possible from air inlet vents.
Corrosive fumes may be released through these
vents when air is not being brought in through
them.
Chemicals that are corrosive in nature should not
be stored or used near the water heater or vent
terminati n.
Damage and repair due to corrosive compounds in the
air is not covered by warranty.
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