Installation Guide

50
13 Trial Operation
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
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 “Power” button on the Remote
Controller (the Power indicator will turn on).
[If installed a single Water Heater]
4. Open a hot water fixture and confirm that the
Flame symbol comes 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 line.
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
line.
5. Check that the hot water temperature changes
by pressing the / buttons.
NOTE
If an error code “11” or “F11” appears
on the Remote Controller, air may be
trapped in the gas line.
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
line.
[If installed with a Quick Connect Multi-System]
4. Slowly open a hot water fixture and check that a
Water Heater ignites independently.
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.
5. To change ignition priority on the Water
Heaters, press and hold the Minimum burner
set button on the circuit board, repeat step 4.
Press and hold the 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 installed with a Multi-System,
refer to the Installation Manual
provided with the System Controller
(Unit).
• 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.
There is a scald potential if the setting
temperature is too high.
DANGER
Should overheating occur, or the gas supply fail to
shut off, turn off the manual control valve to the
appliance.
[Procedure to follow after step 5 for both
installation of a single Water Heater and
installation with a Quick Connect Multi-System]
6. • Make sure that there are no obstructions
blocking the condensate drain line from
discharging condensate.
• Be sure to check that condensate is freely
flowing from the condensate drain piping.
Condensate will begin flowing out of the
Water Heater within 15 minutes after
operation has started.
7. After the trial operation, clean the filter in the
cold water inlet according to the procedure as
follows.
Proceed to Steps 6 and 7
Proceed to Steps 6 and 7
Trial Operation