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CAUTION: Do not
operate without the
condensate trap connected
to the vent and routed to
the proper drain.
!
30
Condensate Trap Inspection
On a regular basis, inspect the condensate
trap to ensure there is enough water in the
trap and the condensate is draining properly.
Ensure that condensate is disposed of per
local codes and regulations.
If the water heater is to remain idle for an
extended period of time, the power and water
to the appliance should be turned off.
The water heater and piping should be
drained if they might be subjected to freezing
temperatures.
After a long shut-down period, the water
heater’s operation and controls should be
checked by qualified service personnel.
Venting System Inspection
The venting system of an indoor water heater
should be inspected annually to ensure all of
the vent sections are secure and air-tight.
It is recommended that qualified service
personnel familiar with Category III venting
inspect the venting system.
Check vent connection joint sections with a
solution of soapy water to assure air-tightness
while the unit is operating.
Bubbles around a joint connection indicates
a seal leak. Refer to page 10 for vent sealing
instructions.
DO NOT operate the unit if vent system
shows signs of leaking exhaust.
Check to make sure that the air intake and
vent outlet on the OUTDOOR water heater or
the air intake filter and the vent terminal on
the INDOOR water heater has not been
blocked or contain debris.
Burner Inspection
Visually inspect the main burners annually.
Through the side sight glass, inspect the
burner flame. Blue flames should be seen
when the main burner is firing. See figure on
left for location of sight glass.
If any unusual burner operation is noted, the
water heater should be shut off until qualified
service assistance can be obtained.
CAUTION: For your safety, burner
inspection and cleaning should be
performed only by qualified service
personnel.
For cleaning, a vacuum cleaner can be used
on the burner.
!
Proper burner pattern.
Vacation and Extended Shut-Down
NOTICE: Refer to the
Freeze Protection Section
on page 31.
Housekeeping, continued
CLEANING THE AIR INTAKE FILTER
(Indoor Model Only):
● Make sure the unit is OFF and the
electrical power supply has been
disconnected.
● Unscrew the holding screw to the right of
the filter, and slide the filter down.
● Using a vacuum cleaner, remove any loose
dust particles. DO NOT tap the filter as it
may deform and/or damage the filter.
● To remove severe dust, use a soft brush
and wash with running water.
● Allow the filter to dry completely before
reinstalling the filter on the water heater.
Be sure to secure the filter by lining the
guide tab in the hole and tightening the
screw.
CLEANING THE WATER HEATER AND
REMOTE CONTROL(S):
● Make sure the unit is OFF and the
electrical power supply has been
disconnected.
● DO NOT scrub the appliance with a
brush.
● Use only mild soapy water; other
cleaners may damage the surface of
the water heater.
● DO NOT remove any label including the
rating plate while cleaning or servicing.
● DO NOT splash water on the remote
controls when cleaning.
DANGER: DO NOT
attempt to operate the water
heater without the air intake
filter.
NOTICE: The water heater
may not work if the air intake
filter is severely clogged.
!
Blue Flame
Burner Sight
Glass
Exploded View of
Burner