Lochinvar 1 service manual Service

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Service Manual

1 Service

•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%.

•BMS Modulation at Maximum Voltage - Determines the modulation rate of the unit or cascade when the BMS input voltage is at or above the setting of the BMS Voltage at Maximum 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 14.5% to 100%. The default value is 100%.

•BMS Voltage at Minimum Modulation - Determines the voltage at which the external signal begins to increase the modulation rate (power). Below this voltage, the modulation rate (power) will be at the setting of the BMS Modulation at Minimum Voltage parameter. This parameter is only active when the BMS Type is set to modulation rate (power). This parameter can only be changed by the installer. The range of this parameter is 0V to 10V. The default value is 2V.

•BMS Voltage at Maximum Modulation - Determines the voltage at which the external signal forces the modulation rate (power) to the setting of the BMS Modulation at Maximum Voltage parameter. This parameter is only active when the BMS Type is set to modulation rate (power). This parameter can only be changed by the installer. The range of this parameter is 2V to 10V. The default value is 10V.

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 AidMaintenance ServiceTroubleshooting 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 water system Flue vent system and air pipingCheck expansion tank Check boiler relief valve Check ignition ground wiring Check all boiler wiringCheck control settings Inspect ignition and flame sense electrodesCleaning boiler heat exchanger Check flame signalReview with owner Test procedure Test low water flow conditionsTroubleshooting Alarm ScreenCheck the following Before troubleshootingCheck control module fuses No Display No BurnerOperation Unit DoesChecking temperature sensors Temperature ResistanceNoisy No PumpOperation Boiler Pump System PumpFlow Switch CondensateDrain Blocked Flame outFlame Lost Light cont’dWhile Running 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 PressureModel Gas valve adjustment procedureModels 1.3
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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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