Installation Sheet

Rinnai Tankless Water Heater Installaon and Operaon Manual 63
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 operaon aer servicing.
CLEANING
It is imperave that control compartments, burners, and
circulang air passageways of the appliance be kept clean.
Check burner ame for proper color. Once ignited, the
ame must cover the surface of the burner. The ame
must burn with a clear, blue, stable ame. If the ame
does not have this appearance, complete the following
steps:
1. Turn o and disconnect electrical power. Allow to
cool.
2. Remove the front panel by removing 4 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 volale substances
such as benzene and thinners; they may ignite or fade
the paint.
4. Use so dry cloth to wipe cabinet.
To protect yourself from harm, before performing
maintenance:
• Turn o the electrical power supply by unplugging
the power cord or by turning o the electricity at
the circuit breaker. (The temperature controller
does not control the electrical power.)
• Turn o the gas at the manual gas control valve,
usually located immediately below the water
heater.
• Turn o the incoming water supply. This can be
done at the isolaon valve immediately below the
water heater or by turning o the water supply to
the building.
WARNING
Keep the appliance area clear and free from
combusble materials, gasoline, and other ammable
vapors and liquids.
WARNING
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 operaon aer servicing.
The following maintenance items are required for the
proper operaon of your water heater.
5. Maintain the Water Heater
5.1 Maintenance
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 lubricaon. However you must keep fan and
motor free of dust and dirt by cleaning annually.
TEMPERATURE CONTROLLER
Use a so 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 secon “5.3 Flushing the Heat
Exchanger” for more informaon. Refer to secon “Water
Quality Guidelines” to determine if your water needs to be
treated or condioned. The water must be potable, free
of corrosive chemicals, sand, dirt, or other contaminants.
It is up to the installer to ensure the water does not
contain corrosive chemicals or elements that can aect or
damage the Rinnai Tankless Water Heater. Water that
contains chemicals exceeding the levels described in the
Water Quality Guidlines secons of this manual can
damage the Rinnai Tankless Water Heater. Replacement
of the heat exchanger due to water quality damage is not
covered by the warranty.
SNOW ACCUMULATION
• Keep the area around ue terminal free of snow and
ice. The water heater will not funcon properly if the
combuson air or exhaust vent pipes are impeded
(blocked or parally blocked) by obstrucons.
• Keep the condensate drain line free of snow and ice.
Ensure the line is not blocked or clogged and that
condensate is owing freely.
COASTAL INSTALLATIONS
Installaons located in or near coastal areas may require
addional 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 operaon and if necessary, repaired or replaced.