Lighting Instructions; Shutdown Instructions - Noritz proTOUGH NR83DVC Installation Manual

* 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)
Unit A Ignites
Unit B Doesn't Ignite
* 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.
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 freez-
ing, and bleed the gas out of the gas line.
Freezing is not covered by the warranty.
A fire or explosion may result if these instructions are not followed, which may cause lose of
life, personal injury or property damage.

Lighting Instructions

This water heater 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 water heater.
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 instruc-
tions 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.
Press Max. or Min. Manifold
Pressure Set Button on Unit B
CAUTION
WARNING
Unit A Doesn't Ignite
Unit B Ignites
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