Lochinvar 1.3 service manual Control inputs, Board

Page 7

Service Manual

1 Service (continued)

Control inputs

LOW VOLTAGE

CONNECTION

BOARD

SEQUENCER / BUILDING

MANAGMENT SYSTEM

OUTDOOR SENSOR

HW TANK SENSOR

SYSTEM SENSOR

FLOW SWITCH

HW THERMOSTAT

ROOM THERMOSTAT /

ZONE CONTROL

SECONDARY

SMART CONTROL

MODULE

PRIMARY

SMART CONTROL

MODULE

 

 

O-TEMP

 

 

HEAT EXCHANGER SWITCH

 

 

PRIMARY/SECONDARY INLET

 

 

TEMPERATURE SENSOR

 

O-TEMP

 

 

HEAT EXCHANGER SWITCH

PRIMARY/SECONDARY OUTLET

 

 

 

 

TEMPERATURE SENSOR

BLOCKED DRAIN SWITCH

PRIMARY/SECONDARY

 

 

 

 

 

FLUE GAS SENSOR

LOW WATER CUTOFF

 

 

 

TOUCH PANEL

PRIMARY/SECONDARY

 

GAS PRESSURE SWITCH

TOUCH DISPLAY

INTERFACE

 

 

 

 

PRIMARY/SECONDARY

 

 

 

HIGH LIMIT SENSOR

 

 

PRIMARY/SECONDARY

 

MODBUS COMMUNICATION

FLAME SENSOR

 

 

PC INTERFACE

 

BOARD

 

 

 

 

IMG00004

7

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Contents Models 1.0, 1.3, Contents Niosh stated First Aid Handling ceramic fiber materialsMaintenance ServiceTroubleshooting 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 areaCheck water system Flue vent system and air pipingCheck expansion tank Check boiler relief valve Inspect ignition and flame sense electrodes Check ignition ground wiringCheck all boiler wiring Check control settingsCleaning boiler heat exchanger Check flame signalReview with owner Test low water flow conditions Test procedureAlarm Screen TroubleshootingCheck the following Before troubleshootingCheck control module fuses Unit Does No DisplayNo Burner OperationTemperature Resistance Checking temperature sensorsSystem Pump NoisyNo Pump Operation Boiler PumpFlame out Flow SwitchCondensate Drain BlockedFlame Lost Light cont’dWhile 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 ObstructionModel Gas valve adjustment procedureModels 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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