Rinnai RL75e REU-VC2528WD(A)-US, Installation And Operation Manual

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6 VC Series Manual
Environment
Air surrounding the water heater, ven Ɵ ng, and vent
termina Ɵ on(s) is used for combus Ɵ 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 Ō en contains these
compounds. Therefore it is recommended that
outdoor models be used for these loca Ɵ ons where
possible.
The water heater, ven Ɵ ng, and vent termina Ɵ 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 which may
contain corrosive compounds, the following
instruc Ɵ ons are strongly recommended.
IMPORTANT CONSIDERATIONS FOR:
Indoor/Internal Water Heaters
x
DO NOT Install in areas where air for combus Ɵ on
can be contaminated with chemicals.
x
Before installa Ɵ on, consider where air has the
ability to travel within the building to the water
heater.
x
Where possible, install the water heater in a
sealed closet so that it is protected from the
poten Ɵ al of contaminated indoor air.
x
Chemicals that are corrosive in nature should not
be stored or used near the water heater.
Outdoor/External Water Heaters and Vent
Termina Ɵ ons of Indoor/Internal Water Heaters
x
Install the water heater as far away as possible
from exhaust vent hoods.
x
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.
x
Chemicals that are corrosive in nature should not
be stored or used near the water heater or vent
termina Ɵ on.
Damage and repair due to corrosive compounds in
the air is not covered by warranty.
Considera Ɵ on of care for your water heater should
include evalua Ɵ on of water quality.
Water that contains chemicals exceeding the levels
below a ī ect and damage the heat exchanger.
Replacement of the heat exchanger due to water
quality damage is not covered by the warranty.
Maximum Level
Total Hardness Up to 200 mg / L
Aluminum * Up to 0.2 mg / L
Chlorides * Up to 250 mg / L
Copper * Up to 1.0 mg / L
Iron * Up to 0.3 mg / L
Manganese * Up to 0.05 mg / L
pH * 6.5 to 8.5
TDS (Total Dissolved Solids) * Up to 500 mg / L
Zinc * Up to 5 mg / L
Determine Installa Ɵ on Loca Ɵ on
Water Quality
* Source: Part 143 Na Ɵ onal Secondary Drinking Water
Regula Ɵ ons
If you install this water heater in an area that is
known to have hard water or that causes scale build Ͳ
up the water must be treated and/or the heat
exchanger fl ushed regularly.
When scale build Ͳ up in the heat exchanger begins to
a ī ect the performance of the water heater, a
diagnos Ɵ c 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 provides a “Scale Control System” that o ī ers
superior lime scale preven Ɵ on and corrosion control
by feeding a blend of control compounds into the
cold water supply.
You must ensure that clearances will be met and that
the vent length will be within required limits.
Consider the installa Ɵ on environment, water quality,
and need for freeze protec Ɵ on. Requirements for the
gas line, water lines, electrical connec Ɵ on, and
condensate disposal can be found in their respec Ɵ ve
installa Ɵ on sec Ɵ ons of this manual.
103000022 103000023 103000024
Installed on cold
water line supplying
1 tankless water
heater only
Whole home or Light
Commercial supply Ͳ
ing 1 tankless water
heater
Whole home supply Ͳ
ing 2 tankless water
heaters or 1 tankless
in Light Commercial
Re fi ll 103000025 Re fi ll 103000026 Re fi ll 103000026