Required Care And Maintenance Care And Maintenance - Rinnai RHFE-434FTA2 Installation And Operation Manual

Required Care and Maintenance
Care and Maintenance
All maintenance and service is to be performed by a
qualified service technician, preferably one who has
attended Rinnai service training classes on the Direct
Vent products.
The appliance should be inspected annually by a
qualified service technician. More frequent cleaning
may be required due to excessive lint from carpeting,
bedding material, etc. It is imperative that control
compartments, burners, and circulating air passage
ways of the appliance be kept clean.
Any screen or guard removed for servicing the
appliance must be replaced prior to operating the
appliance. Clean as follows:
1. Turn heat off. Allow to cool for one hour.
2. Remove the front panel by removing five screws.
3. Use pressurized air to remove dust from the main
burner, heat exchanger, and fan blades.
4. Use soft dry cloth to wipe cabinet.
Do not use wet cloth or spray cleaners on the burner.
The flue should be inspected annually for blockages
or damage.
Motors are permanently lubricated and do not need
periodic lubrication. Keep fan and motor free of dust
and dirt by cleaning annually.
Verify proper operation after servicing.
When attaching the front panel, take care not to clip
or pinch any electric cords to prevent electric shock.
Care of Exterior
Dampen soft cloth with warm water. Wring water out
well and wipe the unit.
Do not use volatile substances such as benzene or
thinners. They cause fading of the paint and
deformation of the resin.
CAUTION
Prevent dust from accumulating on the power cord,
side covers, and parts behind the appliance.
CAUTION
Keep the area around flue terminal free of snow and
ice. The appliance will not function properly if the in-
take air or exhaust is impeded by obstructions.
Refer to the Flue Terminal Clearances. The clearance
in Ref. A should be maintained from any snow
accumulation.
30 Rinnai Corporation EX17CT, EX22CT Manual
Filters
Dirty filters reduce the air flow
and the appliance's ability to
produce heat. The filters
should be cleaned frequently
during the heating season.
If the filters become blocked
the filter indicator lamp will
flash red and a beep will sound
five time. This beeping will
repeat every 5 minutes.
Eventually the appliance will
turn off and display fault code
14 on the control panel display.
To clean the filters, the appliance should be OFF and
cool. Remove the filter and clean it using a soft dry
cloth or vacuum. If the filter is greasy wash with warm
soapy water, rinse, and dry completely.
Do not use the appliance without the filter installed.
Visual Inspection of Flame
Check that the burner flames are operating normally.
The flame can be seen through the circular window
through the louvers.
When operating normally the burner flame should
appear as long, clear, blue, stable, streaks. Yellow
flames or an orange color is abnormal and
maintenance is required.
NORMAL
Flame Rod
Long, clear, blue,
stable flames
ABNORMAL
Flame Rod
Yellow flames or
orange color