Lochinvar 2072, 402 service manual Circulation pumps, Service Notification

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Copper-fin II/IIE Boiler and Water Heater Service Manual

1 Service

Maximum setpoint

This setting determines the setpoint used by the unit or cascade when the BMS voltage is at or above the Voltage at Maximum setting. This parameter is only active when the BMS type is set to Setpoint. The temperature range for this parameter is 32°F (0°C) - 230°F (110°C) (boilers) or 32°F (0°C) to 190°F (87°C) (water heaters). The default value is 190°F (88°C) for water heaters and 220°F (104°C) for boilers.

Voltage to start CFH

When the Enable input is set to Inactive, this parameter determines the BMS input voltage at which the unit or cascade is enabled. When the unit is disabled, the unit will become enabled when the BMS input voltage rises up to or above this value. The range for this parameter is (Voltage Differential CFH parameter + 0.1V) - 10V. The default value is 2V.

Voltage differential stop CFH

When the Enable input is set to Inactive, this parameter determines the BMS input voltage at which the unit or cascade is disabled. When the unit is enabled, the unit will become disabled when the BMS input voltage drops down to or below the enable voltage minus this value. The range for this parameter is 0V - (Voltage to Start CFH parameter - 0.1V). The default value is 1V.

Circulation pumps

System pump delay (boiler only)

The system pump delay parameter sets the length of time the system pump (if connected) will run after a SH demand has been satisfied or outdoor air shutdown begins. The time range for this parameter is 1 minute to 40 minutes. The default time is 30 seconds.

SH pump delay (boiler only)

The SH pump delay parameter sets the length of time the boiler pump will run after a SH demand has been satisfied. The time range for this parameter is 1 minute to 40 minutes. The default time is 30 seconds.

DHW pump delay

The DHW pump delay parameter sets the length of time the DHW pump (boiler), or unit pump (water heater) will run after a DHW demand has been satisfied. The time range for this parameter is 1 minute to 40 minutes. The default time is 30 seconds.

System pump mode (boiler only)

The system pump can be configured to operate in one of two modes. “CFH” runs the system pump whenever there is a SH demand. “WWSD” runs the system pump continuously, except when the boiler is blocked due to outdoor shutdown. The default mode is CFH.

Service Notification

Service interval time (months)

When the boiler control determines that a scheduled service is due based on days of installation, the boiler display will alternate the standard boiler display text with the message SERVICE DUE every 5 seconds. The time range for this parameter is 0 months to 36 months. The default time is 12 months.

Service interval run

When the boiler control determines that a scheduled service is due based on the hours of actual operation, the boiler display will alternate the standard boiler display text with the message SERVICE DUE every 5 seconds. The time range for this parameter is 0 hours to 100,000 hours. The default time is 10,000 hours.

Service interval operation

When the boiler control determines that a scheduled service is due based on the number of boiler cycles, the boiler display will alternate the standard boiler display text with the message SERVICE DUE every 5 seconds. The range for this parameter is 0 cycles to 100,000 cycles. The default is 10,000 cycles.

Reset service reminder

Once servicing has been completed, the service notification counter should be reset. Once accessed, press the RESET key to reset the service notification counter.

Accept personality plug

After replacing a control board, the new control will require the installer to verify the model in which it is installed. As soon as the power is turned on, the screen will display “Wrong ID Plg”. Locate the control ID label on the front of the control panel. Note the number written on this label. Access this parameter. That number should appear after the word “Setting:” on the bottom line. If this number matches the number on the connector, press “Enter”.

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Contents Copper-fin II/IIE Boiler and Water Heater Models 402 Contents Please read before proceeding Handling ceramic fiber materialsNiosh stated First Aid What is in this manual? ServiceMaintenance TroubleshootingService Copper-fin displayControl inputs Control outputs General Operation How the appliance operatesHow the control module operates Sequence of operationSequence of operation OUT 123.8F129HTR Postpurge Display panel menu access Display panel parameter access Parameter table a Boiler Operation OnlyAnti-cycle Time Anti Cycl Tm Parameter table B Water Heater Operation BMS Service Notification Pumps Temperature settings Viewable and changeable control parametersData logging FunctionsDHW settings Outdoor air reset boiler only Anti-cycling Control modes Building Management System BMS CascadeService Notification Circulation pumpsMaintenance Maintenance and annual startup Service technicianOwner maintenance See the User’s Information Manual for instructionsMaintenance Check relief valve Inspect/replace hot surface ignitersInspect/replace hot surface igniter Check all wiring Check control settingsInspect and clean burner Perform start-up and checks2Adjusting air shutter 399,999 750,000 Btu/ hr Models Adjusting combustion air pressure Checking manifold gas pressurePressure Regulator Chamber Adjustment Manifold Inspect and clean the heat exchanger Review with ownerOiled bearing circulators Troubleshooting Before troubleshootingCheck control module fuses Check the followingNo Display No BurnerOperation Unit DoesChecking temperature sensors Resistance TemperatureTemperature Resistance Noisy No PumpOperation Boiler Pump System Pump DHW PumpFlow Switch Flame SequenceAnti-cycling Error No Flame IgnHSI Current Low Flame CKTAuto Reset No FlameRunning High LimitManual Reset Inlet LowSensor Open Sensor ShortedLouver Proving Tank OpenAPS Open APS ClosedTemp O/Shoot Rem Ctrl FltParameters Progr Service Blk Watch Dog ErrorNo Error Stored Low Voltage
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402, 2072 specifications

Lochinvar 2072,502 is an innovative and robust water-heating solution tailored for residential and commercial applications. This model represents a significant advancement in energy efficiency and performance, catering to the dynamic heating requirements of modern buildings.

One of the standout features of Lochinvar 2072,502 is its advanced thermal efficiency. With an impressive AFUE (Annual Fuel Utilization Efficiency) rating, the unit delivers exceptional heat output while minimizing energy consumption. This not only reduces utility bills for homeowners and businesses but also supports sustainability efforts by decreasing carbon footprints.

The Lochinvar 2072,502 incorporates cutting-edge technologies that set it apart in the market. It is equipped with advanced control systems that allow users to precisely manage heating outputs, ensuring optimal comfort while conserving energy. The user-friendly digital display provides real-time data, allowing for efficient monitoring and control.

Another significant characteristic of the Lochinvar 2072,502 is its robust stainless-steel construction. This feature enhances the unit's durability and longevity, ensuring reliable performance even in challenging conditions. The high-quality materials also contribute to maintaining consistent water temperatures, which is essential for both residential and commercial heating needs.

The Lochinvar 2072,502 operates silently, making it ideal for installations in areas where noise is a concern. Its compact design allows for flexible installation options, fitting seamlessly into various spaces, whether it’s a utility room, basement, or outdoor area.

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Maintenance is streamlined with the Lochinvar 2072,502, as it features a self-diagnostics system that simplifies troubleshooting. Regular service check-ups are made easier with accessible components, allowing technicians to perform maintenance tasks efficiently.

In summary, the Lochinvar 2072,502 stands out for its high efficiency, advanced technology, durability, and flexible installation options. It is an ideal choice for those seeking a reliable and technologically advanced water-heating solution that meets the challenges of contemporary heating demands while promoting energy savings and environmental responsibility.
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