American Water Heater 316888-004 Electrical Connections, Filling the Water Heater, Calibration

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ELECTRICAL CONNECTIONS

The water heater must be connected to a properly grounded electrical branch circuit. A dedicated circuit is preferred. Do not use a GFI outlet.

Refer to the rating plate attached to the water heater to determine the electrical requirements for the heater. Ensure the circuit provided is correct for these requirements.

Important: Do not use an extension cord to connect the water heater to an electrical outlet.

Important: The electrical controls used inside the gas control of this water heater are polarity sensitive. Ensure the electrical supply is connected correctly in the receptacle box. Failure to connect correctly will prevent the unit from functioning properly.

When all the water, gas and venting connections have been correctly made, fill the tank as directed in the section

“FILLING THE WATER HEATER”.

When the tank has been filled, connect the electrical power and proceed with starting the water heater as directed in the “CALIBRATION” section.

CALIBRATION

The water heater must be calibrated as follows before being put into service. The Calibration Procedure examines and measures certain details of your installation and automatically sets some control parameters. Before starting the Calibration Procedure, the heater must be properly installed and connected to the water piping and the vent system. Ensure all panels, covers and doors are in place. To avoid a possible “end of call-for-heat” (and consequent interruption of the Calibration Procedure), a continuous water draw from the heater is recommended during the calibration.

This procedure assumes that the heater is installed with DIP switch 4 in the calibration (ON or “down”) position (see Figure 33a).

To calibrate the heater:

1.Plug the power cord into a 120Vac/60Hz outlet.

2.Press the Standby Button to turn on the heater and initiate the Calibration Procedure.

3.The Calibration Procedure will last about 6 minutes. Do not interrupt this procedure once it has started. After a successful calibration the heater will go into standby mode. During the calibration if the “call-for-heat” ends, the calibration was not completed and the E36 error message will be shown on the display. If this occurs, unplug the power cord and repeat steps 1 and 2.

To put the heater into service after a successful calibration:

1.Unplug the power cord from the 120Vac/60Hz outlet

2.Open (plastic) front door of the heater and remove the cover of the heat engine. The DIP switches are located on the PCB which is mounted on the right-hand side of the heat engine.

3.Set DIP switch 4 in the normal (OFF or “up”) position (see Figure 33a).

4.Reinstall the front cover of the heat engine, close and latch the front door of the heater.

5.Plug the power cord into the 120Vac/60Hz outlet.

6.Press the Standby Button to turn on the heater and start the unit.

DIP Switch 4 in

DIP Switch 4 in

normal mode

calibration mode

(“OFF”, “up”)

(“ON”, “down”)

FIGURE 33a

The E36 “calibration error” occurs in the following situations:

•Calibration switch (DIP switch 4) is in the calibrate (ON or “down”) position and an “end call-for-heat” occurs before the Calibration Procedure is finished.

•Calibration switch (DIP switch 4) is in the calibrate (ON or “down”) position there is no “call-for-heat” within 6 minutes of turning on the power.

•Calibration switch (DIP switch 4) is in the calibrate (ON or “down”) position and the unit is calibrated but the DIP switch is not set to the normal (OFF or “up”) within 6 minutes after the Calibration Procedure is finished.

•Calibration switch (DIP switch 4) is in the normal (OFF or “up”) position and the unit is not calibrated and 1 minute (or more) passes after turning on the power.

If an E36 error message is displayed:

1.Unplug the power cord from 120Vac/60Hz outlet.

2.Open front door of the heater and remove the front cover of the heat engine.

3.Check that (or set) DIP switch 4 is in the calibrate (ON or “down”) position.

4.Generate a 5 minute (minimum) water draw from the heater.

5.Repeat the calibration procedure.

NOTE: If changes are made to the vent system or the heater is re-located, the Calibration Procedure must be repeated.

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Contents Power Vent GAS Models AN Odorant is Added to the GAS Used By this Water HeaterTable of Contents Safe INSTALLATION, USE and Service Important DefinitionsGeneral Safety Can be triggered at any time Preparing for the Installation IntroductionPage Operation Replacement Parts and Deliming ProductsGET to Know Your Water Heater GAS Models Installation Considerations Rough in DimensionsDirectly BELOW. Keep Clear of ALL Obstructions Water Piping Mixing Valve Usage Suggested Piping Arrangement For TOP ConnectionsWater Potable Heating All models are considered Hotter Water can ScaldFacts to Consider about Location Handle Installation Earthquake Zones Page Appliances in Confined Spaces Combustion AIR and VentilationAppliances in Unconfined Spaces ALL AIR from Outdoors See Figures 12, 13 Chemical Vapor Corrosion Water PipingClosed Water Systems Thermal ExpansionTEMPERATURE-PRESSURE Relief Valve Hard WaterValve and Pipe Insulation if supplied GAS Piping High Altitude Installations GAS Line PurgingFLOODING/FREEZING Filling the Water HeaterPlanning the Vent System If using 2 inch vent pipeVent Pipe Termination If using 3 inch vent pipe Installation of Vent System Vent Terminal INSTALLATION, SidewallCondensate Masonry Side WallsVent terminals supplied with heater must be used Sequence of InstallationsInstallation Sequence Installation of Vent SYSTEM, Sidewall Installation of Vertical Vent SystemSelection of Materials Vent Pipe PreparationInitial Preparation Step B Recommended BRUSH* Size for Primer Cement ApplicationsStep a Power Vent Step EStep F Step G Connection to Vent PipeVent Hoods MAY be Extremely HOT During Operation Calibration Electrical ConnectionsFilling the Water Heater Operating Instructions Display PanelPage MCU For Your Safety Read Before Lighting Lighting InstructionsHeat Cycle Definitions State Description Temperature Regulation Unique Hybrid Features Temperature ProbesPage Temperature Regulation Operational Conditions Constant Output Temperature ControlStart UP Conditions Maintenance HousekeepingVenting System Inspection Burner Operation and InspectionAnode ROD Replacement TEMPERATURE-PRESSURE Relief Valve OperationCleaning the Inlet Water Filter MotorsCleaning the Heat Engine Flushing the Heat Exchanger Lime BUILD- UPFault Indication and Error Codes Draining the TankCode Display Example Format Diagnostic DisplayRemarks Fault Lockout Code Description Cause Remedy Type Displayed Fault Lockout Code Description Cause Remedy Type Displayed Fault Lockout Code Description Cause Remedy Type Displayed Troubleshooting When the TAP is Opened There is no HOT Water orHOT Water Turns Cold Stays ColdService Leakage CheckpointsParts Identification Item # Description AB C DEF KIT # Replacement Parts DescriptionNIP/DIP/TBO/HT Page Page

316888-004 specifications

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