Lochinvar 1 service manual Secondary Smart Touch Control Module Primary, Control outputs

Page 8

Service Manual

1 Service

Control outputs

LOW VOLTAGE CONNECTION BOARD

SECONDARY

SMART TOUCH

CONTROL MODULE

PRIMARY

SMART TOUCH

CONTROL MODULE

ALARM BELL

RUN TIME CONTACTS

SEQUENCER / BUILDING MANAGEMENT SYSTEM

SYSTEM PUMP
	TOUCH PANEL
TOUCH DISPLAY	INTERFACE

PC INTERFACE

HEAT EXCHANGER 1 / HEAT EXCHANGER 2 BOILER PUMP

HW PUMP

IGNITOR

BLOWER

GAS VALVE

8

Image 8

Contents

Models 1.0, 1.3, Contents Handling ceramic fiber materials Niosh stated First AidTroubleshooting ServiceMaintenance Service Near boiler pipingSync display Control inputs BoardSecondary Smart Touch Control Module Primary Control outputsGeneral Operation How the boiler operatesHow the control module operates Sequence of operationSequence of operation Sequence of operation space heating and HWThis table lists the parameters and where to access them Parameter tableOutdoor Reset Viewable and changeable control parameters Status ScreenService Details Screen Service Main Screen Setup Screen Service/Setup Parameters Screen Service Set Point Parameters Screen Outdoor Reset Parameters Screen Service Night Setback Parameters Screen Cascade Parameters Screen Cascade OperationPumps Parameters Screen 10Vdc BMS Parameters Screen 10Vdc OperationService Cascade Screen Service Temps Screen Burners Screen Graph Select Screen History Screen Service Mode Screen Maintenance Maintenance and annual startup Address reported problems Clean condensate trapInspect boiler area Inspect boiler interiorCheck expansion tank Check boiler relief valve Flue vent system and air pipingCheck water system Check ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesReview with owner Check flame signalCleaning boiler heat exchanger Test procedure Test low water flow conditionsTroubleshooting Alarm ScreenCheck control module fuses Before troubleshootingCheck the following No Display No BurnerOperation Unit DoesChecking temperature sensors Temperature ResistanceNoisy No PumpOperation Boiler Pump System PumpFlow Switch CondensateDrain Blocked Flame outWhile Running Light cont’dFlame Lost Troubleshooting Automatic Reset High Limit / HEXTemp SW Blower RPM’sLouver Proving Switch Too HighSensor Open Sensor ShortedResets Try Later Air Flow TooLow Flap ValveInternal Fault No Error StoredWriting to MemosCombustion Analysis Procedure Gas Valve AdjustmentOr Obstruction Gas Supply PressureModels 1.3 Gas valve adjustment procedureModel

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