Lochinvar 1 service manual Service

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Service Manual

1 Service

•Maximum Service Time - Service Mode allows the installer to control the fan speed of the individual control modules for the purposes of combustion analysis.

Service Mode will override all other heat demands, however, all safeties will remain intact. Maximum service time sets the length of time the boiler will stay in Service Mode if no buttons are pressed before reverting back to its original state. This parameter can only be changed by the installer. The time range of this parameter is 0 to 40 minutes. The default value is 20 minutes.

•Temperature Units - The control can be configured to display temperatures in either °C or °F. The default is °F.

•User Password - Allows the user to access and change a limited number of control parameters. The access code can be changed by the user or the installer to a code of their choosing. The default code is 0704.

•LCD Backlight - Sets the length of time the LCD Screen will stay on after a button has been pressed. This parameter can be changed by the user or the installer. The time range for this parameter is 30 seconds to ON. With a setting of ON, the LCD Screen will be on continuously. The default time is 15 minutes.

•LCD Brightness - Controls the brightness of the screen. This parameter can be changed by the user or the installer. The range for this parameter is 10% to 100%. The default percentage is 50%.

Reference page 18 for information regarding changing parameters.

Time - The time is displayed in the upper right-hand corner of the display. It is displayed in 24 hour format. Reference the night setback parameters on page 24 for information regarding adjusting the date and time.

Back button - Pressing this button will back the screen up to the previous screen.

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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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