State Industries SHE50-100NE, SHE50-100PE manual Wiring Diagram, Service Notes Polarity & Ground

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ULTRA HIGH EFFICIENCY POWER VENT/POWER DIRECT VENT - SERVICE MANUAL

WIRING DIAGRAM

120 VAC 1Ø

Power Supply

Ground

Neutral

Hot

Service Notes - Polarity & Ground

This water heater is polarity and ground sensitive. The control system will lock out and display a fault message (“AC Reversed”) if the power supply polarity is reversed. Flame sensing current cannot be established if the burner is not grounded which will lead to ignition failure. See electrical requirements on page 8.

Technical Literature Department	39 of 52	Ashland City, TN © 2008
Servicing should only be performed by a Qualified Service Agent

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Contents Service Handbook Ultra High Efficiency Power VENT/POWER Direct Vent Service Warning Qualifications Qualified Service AgentImportant Service Reminder Tools Required Closed Water Systems Thermal ExpansionAIR Requirements Contaminated AIRVenting Maximum Equivalent Length RequirementsService Notes Venting Pipe Size RequirementsMaximum Elbow Requirements Number Maximum Pipe Elbows Length Feet MetersService Notes Electrical VAC 1Ø Power SupplyCorrectly Wired Outlet Electrical RequirementsHOW IT Works Internal ViewService Notes Blower BlowerService Notes Burner Flame Sensor BurnerBurner & Blower Removal On NextService Notes Blower Flange & Blower Adapter Gaskets Burner/Blower RemovalVenturi BlowerGas Valve Removal GAS ValveGasket Orifice GAS Pressure Testing Service Notes Checking Gas PressuresGAS Pressures Service Notes Gas Pressure AdjustmentGas Pressures AIR Pressure Switches Normal State Activated StateBlocked Intake Switch Blower Prover SwitchBlocked Exhaust Switch AIR Pressure Switch Operation Blower Prover FailureNormal State Test AIR Pressure Switch TestingOperational State Test Pressure Test Air Pressure Switch ParametersBlower Prover Blocked Intake Blocked Exhaust Page Measuring Flame Sensing Current Flame Sensing TestFlame Sensor Service Notes Hot Surface Igniters Igniter Current TestControl System Features IntroductionService Notes Button Pad Ribbon Cable UIMCommercial & Residential Product Differences Discreet Menu Contact InformationService Note Sequence of Operation Display Desktop ScreenStatus Icons Status Icon DescriptionOperational States Modes State DescriptionOperating SET Point Adjustment Action DisplayControl System Menus ECO Service Notes CCB Replacement CCBJ10 J13 J15 J11 J16 Socket IdentificationJ3 Socket 120 VAC Power Supply J1 Socket TransformerJ2 Socket 120 VAC To Blower PIN # DescriptionRetry Ext Use Yes Input Type Tstat OpenWiring Diagram Service Notes Polarity & GroundSequence of Operation YESResetting the control system Important Service ReminderRough Starting Rough Operation Note Heater Status MenuControl System Unresponsive UIM Display Is BlankUIM is Inoperable Displayed Message CHECK/REPAIR CONDITION/INDICATESFault Messages AC ReversedFlame Probe Short Upper Probe ShortFlame Detect Error Energy Cut Out ECOBlocked Inlet Blocked Exhaust Vent Blower Prover Open Perform ALL These Tests with PowerTurned on and a Call for Heat Active Low Igniter Current Ignition Failure Rough Starting Rough Operation NoteCheck for 24 VAC to the Gas Valve solenoid coil Gas Valve Failure Communication FailureTennessee Waltz Parkway Ashland City, TN