Vent System - Rinnai CX199i Installation And Operation Manual

Topics in this section
•
Maintenance
• Cleaning and Inspecting the Air Filter
•
Flushing the Heat Exchanger
•
Draining the Water Heater
This water heater must be inspected
annually by a trained and qualified
professional. Repairs and maintenance
shall be performed by a trained and
qualified professional. The trained and
qualified 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.
84
The following maintenance items are required for
the proper operation of your water heater.
CLEANING
It is imperative that control compartments,
burners, condensate collection and disposal
system, vent screens and circulating air
passageways of the appliance be kept clean.
BURNER
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 (refer to "Visual Inspection of Flame"
section on next page). If the flame does not have
this appearance, complete the following steps:
1. Turn off and disconnect electrical power.
Allow to cool. Shut off gas supply.
2. Remove the front panel by removing the two
screws and releasing two latches.
3. Remove the blower assembly and the gas
valve assembly by removing three screws on
the front of the burner assembly, and one
screw on the gas piping at the bottom of the
gas valve assembly.
4. Use a vacuum to remove dust from the main
burner and fan blades. Back of the main
burner can be accessed from the opening of
burner assembly, and the fan blades can be
accessed from the opening of the blower
assembly. Do not use a wet cloth or spray
cleaners on the burner. Do not use volatile
substances such as benzene and thinners as
they may ignite or fade the paint.
5. Inspect O-rings and gaskets prior to
reassembly (replace if damaged).
6. Install and secure the blower assembly and
gas valve assembly by the four screws, and
install and secure the front panel by the two
screws and two latches.
CONDENSATE COLLECTION AND DISPOSAL
SYSTEM
Periodic inspection and cleaning of the
condensate collection and disposal system.
Ensure condensate is flowing and the end of the
drain is open to the atmosphere.

VENT SYSTEM

Periodic cleaning and inspection of the vent
system including screens in the vent termination.
The vent system should be inspected for
blockages including snow or other debris or
damage. If the vent is blocked and cannot be
easily cleared, contact a trained and qualified
professional.
Rinnai Tankless Water Heater Installation and Operation Manual