Lochinvar 1.5 service manual Models 1.0, 1.3

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AWX2-SER Rev A

Service Manual

Models: 1.0, 1.3, and 1.5

￿WARNING

This manual must only be used by a qualified heating installer / service technician. Read all instructions, including this manual and the Armor X2 Installation and Operation Manual, before installing. Perform steps in the order given. Failure to comply could result in severe personal injury, death, or substantial property damage.

Save this manual for future reference.

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Contents Models 1.0, 1.3, Contents Niosh stated First Aid Handling ceramic fiber materialsMaintenance ServiceTroubleshooting Armor X2 display Primary Smart Control Module Control inputsControl outputs Secondary Smart Touch Control Module PrimaryHow the water heater operates General OperationSequence of operation Sequence of operation Sequence of operationParameter table This table lists the parameters and where to access themBMS Status Screen Viewable and changeable control parametersService Details Screen Service Main Screen Setup Screen Service/Setup Parameters Screen Service Set Point Parameters Screen Night Setback Parameters Screen Cascade Operation Cascade Parameters Screen10Vdc Operation 10Vdc BMS Parameters ScreenService Cascade Screen Service Temps Screen Burners Screen Graph Select Screen History Screen Service Mode Screen Maintenance Maintenance and annual startup Clean condensate trap Address reported problemsInspect water heater area Inspect water heater interiorCheck water system Flue vent system and air pipingCheck expansion tank Check water heater relief valve Check all water heater wiring Check ignition ground wiringCheck control settings Check flame signalCheck Delta T Cleaning water heater heat exchangerOiled bearing circulators Alarm Screen TroubleshootingCheck the following Before troubleshootingCheck control module fuses Troubleshooting Temperature Resistance Checking temperature sensorsFault Cause Corrective Action Condensate Flow SwitchDrain Blocked Flame outFlame Lost Light cont’dWhile Running Cont’d Manual ResetHigh Limit High Limit / HEX Automatic ResetTemp SW Blower RPM’sToo High Louver Proving SwitchSensor Open Sensor ShortedAir Flow Too Resets Try LaterLow Flap ValveNo Error Stored Internal FaultWriting to MemosGas Valve Adjustment Combustion Analysis ProcedureOr Obstruction Gas Supply PressureModel Gas valve adjustment procedureModels 1.3
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