35
(1) Open a hot water fixture and confirm that the Burner On lamp comes on, and that hot water is
being produced. (If necessary, repeat until the air in the gas piping is bled out).
* White smoke may be noticed from the exhaust vent during cold weather. However, this is not
a malfunction of the unit.
* If an “11” error code appears on the remote controller, turn the unit off and then back on
again, and then open a hot water fixture again.
(2) Change the temperature setting on the remote controller and check that the water temperature changes.
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If the water heater does not operate normally, refer to “Troubleshooting” in the Use and Care Manual.
* After the trial operation, clean the filter in the cold water inlet.
<If installed with a quick connect multi-system>
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hot water temperature is the same as the temperature displayed on the remote controller. (*1)
* If both units do not ignite, switch which unit will ignite first by pressing the Max. or Min. Mani-fold
Pressure Set Button on the circuit board. (*2)
* If an 11 or F11 error code flashes on the remote controller, hit the Power Button on the remote
controller off and on 2 -3 times.
* If (*1) and (*2) cannot be done, the Quick Connect Cord may not be properly connected.
Check that the cord is properly connected.
14.
Maintenance
Periodically check the following to ensure proper
operation of the water heater.
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any leaks or corrosion.
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there is no obstruction. Turn the power off to the unit before opening the relief valve, and make
sure that water draining out of the valve will not cause any damage.
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system. Contact the water supplier or a local plumbing inspector on how to correct this situation.
Do not plug the relief valve.
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Warning:
There is a scald potential if the output temperature is set too high.
Should overheating occur, or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.
Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas control
which has been under water.
Periodically check and clean the filter inside the cold water inlet of the unit.
15.
Trial Operation
The installer should test operate the unit, explain to
the customer how to use the unit, and give the owner
this manual before leaving the installation.
Unit A Ignites
Unit B Doesn't Ignite
Press Max. or Min. Manifold
Pressure Set Button on Unit B
Unit A Doesn't Ignite
Unit B Ignites
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the fixture.
(2) Open the gas supply valve.
(3) Turn on the power supply. Using the remote controller, turn on the Power
On/Off button (the Operation lamp will turn on).
