Maintain The Water Heater; Maintenance - Rinnai SENSEI RU199i Manual De Instalación Y Operación

5. Maintain the Water Heater

This water heater must be inspected annually by a
licensed professional. Repairs and maintenance shall be
performed by a licensed professional. The licensed
professional must verify proper operation after servicing.
WARNING
To protect yourself from harm, before performing

maintenance:

•
Turn off the electrical power supply by unplugging
the power cord or by turning off the electricity at
the circuit breaker. (The temperature controller
does not control the electrical power.)
•
Turn off the gas at the manual gas control valve,
usually located immediately below the water
heater.
•
Turn off the incoming water supply. This can be
done at the isolation valve immediately below the
water heater or by turning off the water supply to
the building.
WARNING
Keep the appliance area clear and free from
combustible materials, gasoline, and other flammable
vapors and liquids.
5.1 Maintenance
The following maintenance items are required for the
proper operation of your water heater.
The appliance must be inspected annually by a licensed
professional. Repairs and maintenance shall be performed
by a licensed professional. The licensed professional must
verify proper operation after servicing.
CLEANING
It is imperative that control compartments, burners, and
circulating air passageways of the appliance be kept clean.
Check burner flame for proper color. Once ignited, the
flame must cover the surface of the burner. The flame
must burn with a clear, blue, stable flame. If the flame
does not have this appearance, complete the following
steps:
1. Turn off and disconnect electrical power. Allow to
cool.
2. Remove the front panel by removing four screws.
3. Use a vacuum to remove dust from the main burner
and fan blades. Do not use a wet cloth or spray
cleaners on the burner. Do not use volatile substances
such as benzene and thinners; they may ignite or fade
the paint.
4. Use soft dry cloth to wipe cabinet.
Rinnai Tankless Water Heater Installation and Operation Manual
VENT SYSTEM
The vent system should be inspected at least annually for
blockages or damage. If the vent is blocked contact a
licensed professional.
MOTORS
Motors are permanently lubricated and do not need
periodic lubrication. However you must keep fan and
motor free of dust and dirt by cleaning annually.
TEMPERATURE CONTROLLER
Use a soft damp cloth to clean the temperature controller.
Do not use solvents.
LIME/SCALE BUILD-UP
Scale build-up is caused by hard water and can be
accelerated if the water heater is set at a high
temperature. Refer to section "5.3 Flushing the Heat
Exchanger" for more information. Refer to section "Water
Quality Guidelines" to determine if your water needs to be
treated or conditioned. 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 affect
or damage the heat exchanger. Water that contains
chemicals exceeding the levels required affect and
damage the heat exchanger. Replacement of the heat
exchanger due to water quality damage is not covered by
the warranty.
SNOW ACCUMULATION
•
Keep the area around flue terminal free of snow and
ice. The water heater will not function properly if the
combustion air or exhaust vent pipes are impeded
(blocked or partially blocked) by obstructions.
•
Keep the condensate drain line free of snow and ice.
Ensure the line is not blocked or clogged and that
condensate is flowing freely.
COASTAL INSTALLATIONS
Installations located in or near coastal areas may require
additional maintenance due to corrosive airborne ocean
salt. If corrosion is observed on the body of the water
heater, the water heater shall be inspected to ensure
proper operation and if necessary, repaired or replaced.
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