Thermann Installer’s Manual
Gas Continuous Flow Water Heaters
24
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
[If installed with a Quick Connect Multi-System]
4. Slowly open a hot water fixture and check that a
Water Heater ignites independently.
[Procedure to follow after step 5 for both
installation of a single Water Heater and
installation with a Quick Connect Multi-System]
6. After the trial operation, clean the filter in the
cold water inlet according to the procedure as
follows.
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.
NOTE
If an error code “11” or “F11”
appears on the Remote Controller,
the air is not completely purged
from the gas pipe.
1) Close a hot water fixture.
2) Turn the Water Heater off and
then back on.
3) Reopen a hot water fixture.
4) If necessary, repeat until the air
is completely purged from the
gas pipe.
5. Check that the hot water temperature changes
by pressing the ↑ / ↓ buttons.
Proceed to Step 6
5. To change ignition priority on the heaters, press
and hold the Maximum or Minimum burner set
button on the circuit board, repeat step 4.
Press and hold the Maximum or Minimum
burner set button on Water Heater B
Water Heater A Ignites
Water Heater B Doesn’t Ignite
Water Heater A Doesn’t Ignite
Water Heater B Ignites
NOTE
If step 4 and step 5 cannot be
done, the Quick Connect Cord may
not be properly connected.
Check that the cord is properly
connected.
Proceed to Step 6
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).
[If installed a single water heater]
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
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