65
(1) Open a hot water xture and conrm 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. This is not a malfunction of the unit.
* If an “11” error code appears on the Operation Panel, turn the unit off and then back on again,
and then open a hot water xture again.
Lighting Instructions
This Combi Boiler does not have a pilot. It is equipped with an ignition device that automatically
lights the burner.
Do not try to light the burner by hand.
1. Read the safety information in the installation manual or on the front of the Combi Boiler.
2. Turn off all electrical power to the unit.
3. Do not attempt to light the burner by hand.
4. Turn the gas control manual valve (external to the unit) clockwise to the off position.
5. Wait five minutes to clear out any gas. If the smell of gas remains, stop, and follow the
instructions on page 3 of Owner's Guide.
6. Turn the gas control manual valve counterclockwise to the on position.
7. Turn on electric power to the unit.
8. The unit will now operate whenever hot water is called for. If the unit will not operate, follow the
shutdown instructions and call a service technician.
Shutdown Instructions
1. Stop any water demand.
2. Turn off electric power.
3. Turn the gas control manual valve clockwise to the off position.
Should overheating occur, or the gas supply fail to shut off, turn off the manual control valve to the appliance.
Handling after trial operation
• If the unit will not be used immediately, close off all gas and water shutoff valves, drain all of the
water out of the unit and the plumbing system to prevent the unit and system from freezing, and
bleed the gas out of the gas line.
Freezing is not covered by the warranty.
CAUTION
A re or explosion may result if these instructions are not followed, which may cause lose of
life, personal injury or property damage.
WARNING
<If installed with a quick connect multi-system>
• Turn the system power ON with the Operation Panel.
• Slowly open a hot water xture and check that the units ignite sequentially. Check to see that the
hot water temperature is the same as the temperature displayed on the Operation Panel. (*1)
* If an 11 or F11 error code ashes on the Operation Panel, press the Power ON/OFF Button on the
Operation Panel off and on 2 -3 times.
* If (*1) cannot be done, the Quick Connect Cord may not be properly connected.
Check that the cord is properly connected.
(2) Change the temperature setting on the Operation Panel and check that the water temperature changes.
Refer to page 62.
• If the Combi Boiler does not operate normally, refer to “Troubleshooting” in the Owner's Guide.
* After the trial operation, clean the lter in the DHW cold water inlet.
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