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The installer should test operate the Water Heater,
explain to the customer how to use the Water
Heater, and give the owner this manual before
leaving the installation.
Trial Operation
There is a possibility of scald if the setting
temperature is too high.
DANGER
If overheating occur, or the gas supply fail to
shut off, turn off the manual control valve to the
appliance.
NOTE
• White smoke may be noticed
from the exhaust vent during cold
weather. This is not a malfunction
of the Water Heater.
• If the Water Heater does not
operate normally, refer to
“Troubleshooting” in the Owner’s
Guide.
5. Check that the hot water temperature changes
by pressing the ↑ / ↓ buttons.
6. After the trial operation, clean the filter in the
cold water inlet according to the procedure as
follows.
1. Open a hot water fixture to confirm that water is
available, and then close the fixture.
2. Open the gas supply valve.
3. Turn on the Operation button on the Remote
Controller (the Operation indicator will turn on).
4. Open a hot water fixture and confirm that the
Burner on indicator of Remote Controller turns
on, and that hot water is being produced.
NOTE
If an error code “11” appears on
the Remote Controller, air may be
trapped in the gas pipe.
1) Close a hot water fixture.
2) Turn the unit off and then back on.
3) Open a hot water fixture again.
4) If necessary, repeat until the air is
completely purged from the gas
pipe.
10. Trial Operation
1) Close the water supply valve.
NOTE
Do not lose the Sealing.
2) Open all hot water fixtures.
3) With a bucket ready, remove the inlet water
filter. (about 1 L will drain out)
4) Clean the inlet water filter with a brush under
running water.
5) Reattach and close inlet water filter.
6) Close all hot water fixtures.
7) Open the water supply valve and check that
water does not leak from the inlet water filter.
If error codes “11”, “12”, and “90” appear, check
the following contents.
[“11” : Ignition failure, “12” : Flame loss]
• Check that the gas supply pipe is appropriately
sized.
• Check that the gas supply pressure is within the
ranges required in this manual.
• Check that the gas supply matches the type
indicated on the Water Heater’s rating plate.
• Air may be left in the gas piping. Repeat the
power ON/OFF.
[“90” : Combustion abnormality]
• Check that the air supply / exhaust vent for
blockage.
• Check that the gas supply pressure is within the
ranges required in this manual.
• Check that the condensate piping is not frozen or
clogged.
• Check that the condensate piping is in a
downward slope.
(e.g. TH26ENG5N)
Sealing
Inlet water filter
Water Supply Valve
Summary of Contents for TH17ENB5L
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