Rinnai CAH Series, Instalation And Operating Manual

Page: 37 / 44

Canadian Air Handler Installation and Operation Manual 37
WARNING
Electrical Shock:
•
Before servicing the air handler, turn off
power to unit. There may be more than one
disconnect switch.
•
Improper installation, modification, service,
maintenance or use of the air handler can
cause electrical shock, burns or other
conditions which may cause electrical shock,
personal injury, property damage or death.
WARNING
To service the air handler, follow the steps below.
1. Turn off power to the unit.
2. Remove the air handler front panel by
removing the 9 screws that secure the front
panel.
3. Perform service or maintenance to the air
handler, and then reinstall the screws to
secure the front panel.
•
It is recommended that a trained and qualified
professional who has attended a Rinnai
installation training class perform service to
the air handler.
•
Do not use this air handler if any part has
been under water. Immediately call a licensed
professional to inspect the unit and replace
any part that has been under water.
•
Do not use substitute materials. Use only
parts certified for the air handler.
•
Any alteration to the air handler can be
dangerous and will void the warranty.
Maintenance:
To maintain reliability and optimal performance of
this unit, perform an annual complete verification
of the system. Do not attempt to repair the unit or
its controls. Call a qualified technician.
•
At the beginning of each heating season, the
air handler should be serviced by a qualified
installer or servicing agency. Verify proper
operation after servicing.
•
It is important that compartments, filter, and
circulating air passage ways of the appliance
be kept clean. The air filter must be cleaned
or replaced every month or more frequently in
severe conditions. Always replace with same
type of filter.
•
The supply and return air ducts should be
inspected at least annually for blockages or
damage.
•
Keep the motor free of dust and dirt by
cleaning annually. Verify that the wheel turns
freely. Verify the electrical connections on the
motor.
•
Inspect the heating and cooling (if applicable)
coils annually or more frequently as
necessary.
•
Refer to the tankless water heater or boiler
installation and operation manual for
maintenance requirements.