Determine Installa On Loca On - Rinnai RL75i Installation And Operation Manual

Determine Installa on Loca on

You must ensure that clearances will be met and that
the vent length will be within required limits.
Consider the installa on environment, water quality,
and need for freeze protec on. Requirements for the
gas line, water lines, electrical connec on, and
condensate disposal can be found in their respec ve
installa on sec ons of this manual.
Water Quality
Considera on of care for your water heater should
include evalua on of water quality.
Water that contains chemicals exceeding the levels
below affect 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 *
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 may require
more frequent heat exchanger flushing schedule.
When scale build-up in the heat exchanger begins to
affect the performance of the water heater, a
diagnos c code "LC#" will display. Flush the heat
exchanger to prevent damage to it. Scale build up is
caused by hard water and can be accelerated if the
unit is set at a high temperature.
Rinnai offers Southeastern Filtra on's "ScaleCu er
Water Condi oning System" that offers superior lime
scale preven on 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 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
Environment
Air surrounding the water heater, ven ng, and vent
termina on(s) is used for combus on 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 o en contains these
compounds. Therefore it is recommended that
outdoor models be used for these loca ons where
possible.
The water heater, ven ng, and vent termina on(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
instruc ons are strongly recommended.
IMPORTANT CONSIDERATIONS FOR:
Indoor/Internal Water Heaters
DO NOT Install in areas where air for combus on
might be contaminated with chemicals.
Before installa on, 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
poten al 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
Termina ons 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 any 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
termina on.
Damage and repair due to corrosive compounds in
the air is not covered by warranty.
VC Series Manual