Manuals / Lochinvar / Household Appliance / Water Heater

Lochinvar service manual Service Manual, Models: 1.0, 1.3, and

Models: 1.3 1

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SYNC-SER Rev H

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 SYNC 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.

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Lochinvar service manual Service Manual, Models: 1.0, 1.3, and

Contents

Models: 1.0, 1.3, and Service ManualPlease read before proceeding Hazard definitionsDANGER NOTICEHandling ceramic fiber materials When servicing boiler –Boiler water – Boiler operation –Service What is in this manual?Maintenance TroubleshootingNear boiler piping 1 ServiceService Manual 1 Service The SYNC displayService Manual Service Manual Control inputsSECONDARY SMART CONTROL MODULE PRIMARY SMART CONTROL MODULE1 Service Control outputsService Manual SECONDARY SMART TOUCH CONTROL MODULE PRIMARYService Manual General OperationAccess modes Installer1 Service Sequence of operationService Manual Service Manual Parameter tableUSER ACCESS INSTALLER ACCESSOUTDOOR RESET 1 ServiceUSER ACCESS INSTALLER ACCESSService Manual Viewable and changeable control parametersStatus Screen Service Manual 1 Service2 heat exchangers Details Screen Service ManualService Manual 1 ServiceDisplayed items are as follows Main Screen Service ManualSetup Screen 1 ServiceService/Setup Parameters Screen Service ManualService 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 Set Point Parameters Screen Service ManualService Manual 1 ServiceOutdoor Reset Parameters Screen •Boost Increment - If a system heat call last longer than the programmed boost time setting and there have been no Hot Water Generation calls, the control will increase the water temperature set point by the amount in this parameter. If the system heat call continues through another time period, the set point will be increased again. This will continue until either the system heat call ends, a maximum of 20 increases has occurred, or the maximum set point has been reached. Once the system heat call has been satisfied the set point will revert back to its calculated setting. This parameter can be changed by the user or the installer. The temperature range of this parameter is 0 to 45F. The default value is 0F. This feature will be active if this parameter is set to anything other than 0F Service ManualService Manual 1 ServiceNight Setback Parameters Screen Cascade Parameters Screen Service ManualCascade Operation Service Manual 1 ServicePumps Parameters Screen ModBus Timeout Service Manual0 - 10Vdc BMS Parameters Screen 0-10VdcOperationService Manual 1 ServiceModBus Timeout •BMS Modulation at Minimum Voltage - Determines the modulation rate of the unit or cascade when the BMS input voltage is at or below the setting of the BMS Voltage at Minimum Modulation parameter. This parameter is only active when the BMS Type is set to modulation rate. This parameter can only be changed by the installer. The range of this parameter is 0% to 100%. The default value is 14.5%Cascade Screen Service ManualService Manual 1 Service1 On 34 80 Temps Screen Service ManualService Manual 1 ServiceBurners Screen Graph Select Screen Service ManualService Manual 1 ServiceHistory Screen Service Mode Screen Service ManualService technician 2 Maintenance Maintenance and annual startupOwner maintenance see the following pages for instructionsAddress reported problems 2 Maintenance continuedClean condensate trap Inspect boiler areaFlue vent system and air piping 2 MaintenanceCheck water system Check expansion tankCheck all boiler wiring Check ignition ground wiringCheck control settings Inspect ignition and flame sense electrodesCleaning boiler heat exchanger Check flame signalReview with owner 2 Maintenance continued2 Maintenance Test low water flow conditionsTest procedure Service ManualService Manual 3 TroubleshootingAlarm Screen Before troubleshooting 3 Troubleshooting continuedCheck the following Check control module fusesCAUSE FAULTCORRECTIVE ACTION 3 Troubleshooting3 Troubleshooting continued Checking temperature sensorsService Manual FAULT 3 TroubleshootingService Manual Table 3E Troubleshooting Chart - Noisy System3 Troubleshooting continued DESCRIPTIONFAULT CORRECTIVE ACTIONFAULT 3 TroubleshootingService Manual DESCRIPTIONDESCRIPTION FAULTCORRECTIVE ACTION 3 Troubleshooting continuedFAULT 3 TroubleshootingAutomatic Reset High Limit DESCRIPTIONFAULT 3 Troubleshooting continuedService Manual DESCRIPTIONFAULT 3 TroubleshootingService Manual DESCRIPTIONFAULT 3 Troubleshooting continuedService Manual DESCRIPTIONPOSSIBLE CAUSE Combustion Analysis Procedure3 Troubleshooting CORRECTIVE ACTION3 Troubleshooting continued Gas valve adjustment procedureService Manual Figure 3-2 Gas Valve Adjustment: ModelSYNC-SERRev H 01/12