Lochinvar 1.3 service manual Details Screen

Page 15

1 Service (continued)

Details Screen:

The Details Screen is accessed by pressing the DETAIL button on the Status Screen. This screen shows the status of the various safeties, inputs and outputs to each control module. Selection of the control module to be viewed is accomplished by pressing the SELECT button. The control module being displayed is shown in the module box.

Displayed items are as follows:

•SH Enable - Is ON when a system heat call has been received from a remote end switch or enabling device. Is OFF when a system heat call is not present.

•Manual Reset High Limit - Is ON when the manual reset high limit is closed. Is OFF when the manual reset high limit is open.

•SH Pump - Is ON when a system heat call has been received and the boiler pump is energized. Is OFF when the boiler pump is de-energized.

•HW Thermostat - Is ON when a Hot Water Generation call has been received from a tank thermostat. Is OFF when a Hot Water Generation call has not been received from a tank thermostat.

•Air Pressure Switch - Is ON when the combustion air blower is energized and the flap valve switch is closed. Is OFF when the flap valve switch is open.

•Gas Valve - Is ON when the gas valve is energized. Is OFF when the gas valve is de-energized.

•Gas Pressure Switches - Is ON when the high and low gas pressure switches are closed. If OFF when either the high or low gas pressure switches are open.

•Flow Switch / Low Water Cutoff - Is ON when the low water cutoff contacts are closed or if an optional flow switch is used and it is closed as well. Is OFF when the low water cutoff contacts are open or if an optional flow switch is open.

Service Manual

•Alarm - Is ON when a fault has been detected and the alarm contacts are closed. Is OFF when the alarm contacts are open.

•Louver Proving Switch - Is ON when a remote proving safety switch is closed. Is OFF when a remote proving safety switch is open.

•Blocked Drain Switch - Is ON when the blocked drain switch on the condensate trap is closed. Is OFF when the blocked drain switch on the condensate trap is open.

•Blower Power - Is ON when the combustion air blower is energized. Is OFF when the combustion air blower is de- energized.

•System Pump - Is ON when a system heat call has been received and the system pump has been energized. Is OFF when the system pump is de-energized.

•Auto Reset High Limit - An auto reset high limit is not used in the standard configuration of the SYNC boiler. If OFF is shown then a wiring problem exists.

•Run Time Contacts - Is ON when the burner is energized. Is OFF when the burner is de-energized.

•HW Pump - Is ON when a Hot Water Generation call has been received from a tank thermostat or a tank sensor and the hot water generation pump is energized. Is OFF when the hot water generation pump is de-energized.

•0-10Vdc - Shows the voltage signal being delivered from a remote Building Management System (BMS).

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Contents Models 1.0, 1.3, Contents Niosh stated First Aid Handling ceramic fiber materialsService MaintenanceTroubleshooting Near boiler piping ServiceSync display Board Control inputsControl outputs Secondary Smart Touch Control Module PrimarySequence of operation General OperationHow the boiler operates How the control module operatesSequence of operation space heating and HW Sequence of operationParameter table This table lists the parameters and where to access themOutdoor Reset Status Screen Viewable and changeable control parametersService 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 Operation Cascade Parameters ScreenPumps Parameters Screen 10Vdc 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 Inspect boiler interior Address reported problemsClean condensate trap Inspect boiler areaFlue vent system and air piping Check water systemCheck expansion tank Check boiler relief valve Inspect ignition and flame sense electrodes Check ignition ground wiringCheck all boiler wiring Check control settingsCheck flame signal Cleaning boiler heat exchangerReview with owner Test low water flow conditions Test procedureAlarm Screen TroubleshootingBefore troubleshooting Check the followingCheck control module fuses Unit Does No DisplayNo Burner OperationTemperature Resistance Checking temperature sensorsSystem Pump NoisyNo Pump Operation Boiler PumpFlame out Flow SwitchCondensate Drain BlockedLight cont’d Flame LostWhile Running Troubleshooting Blower RPM’s Automatic ResetHigh Limit / HEX Temp SWSensor Shorted Louver Proving SwitchToo High Sensor OpenFlap Valve Resets Try LaterAir Flow Too LowMemos Internal FaultNo Error Stored Writing toGas Supply Pressure Combustion Analysis ProcedureGas Valve Adjustment Or ObstructionGas valve adjustment procedure ModelModels 1.3
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1.3, 1 specifications

Lochinvar 1 is a remarkable achievement in the realm of modern technology and engineering. As a powerful and efficient water heater, it has been designed to cater to a wide range of residential and commercial needs. One of the standout features of Lochinvar 1 is its advanced heating technology, which incorporates a high-efficiency condensing design. This technology allows the unit to achieve impressive energy savings by maximizing heat transfer while minimizing energy consumption.

The Lochinvar 1 utilizes a stainless steel heat exchanger that enhances durability and corrosion resistance. This not only extends the lifespan of the unit but also ensures consistent performance over time. Coupled with a user-friendly control system, users can easily adjust settings and monitor performance, enhancing overall convenience and usability.

Another key characteristic of the Lochinvar 1 is its compact design, making it suitable for a variety of installation environments. Whether in a residential basement or a commercial utility room, the unit’s space-saving configuration allows for efficient use of available area without compromising on capability.

Safety features are integral to the Lochinvar 1, providing peace of mind for users. The unit is equipped with advanced monitoring systems that can detect irregularities and automatically shut down the system if necessary. This not only protects the equipment but also enhances the safety of the environment in which it operates.

In terms of performance, Lochinvar 1 boasts a high recovery rate, ensuring hot water is available on demand. This is particularly beneficial for settings with high water usage, allowing simultaneous operations without lag.

Moreover, the unit supports various venting options, offering flexibility during installation. Whether using traditional vertical venting or innovations like direct venting, Lochinvar 1 accommodates different building designs and local codes, making it highly versatile.

In conclusion, Lochinvar 1 epitomizes the melding of efficiency, reliability, and user-friendly technology. With its high-performance features, robust safety systems, and adaptable installation options, it stands out as a forefront player in the water heating industry, meeting the diverse needs of today's consumers and businesses alike.
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