Lochinvar 50-210 service manual Temp O/Shoot

Page 37

Service Manual

3Troubleshooting (continued)

Table 3F (continued from previous page) Troubleshooting Chart - Fault Messages Displayed on Boiler Interface

FAULT

DESCRIPTION

CORRECTIVE ACTION

 

 

 

 

The stack temperature has exceeded the set

• Inspect the heat exchanger. Reference page 27 of

 

parameters for the boiler.

this manual for the procedure on how to clean the flue

 

 

 

 

side of the heat exchanger.

 

 

• Inspect the flue sensor and associated wiring.

 

 

Measure the resistance of the flue sensor and

 

 

compare to Table 3C on page 30 of this manual.

 

 

Replace the sensor if necessary.

 

 

• Verify that the vent/air intake pipes are properly

 

 

installed and that there are no obstructions.

 

 

• Replace the main control board.

 

 

 

 

The temperature rise across the heat

• Verify that the system is full of water and that all air

 

exchanger has exceeded the set parameters

has been properly purged from the system.

 

for the boiler.

 

 

 

 

 

 

 

• Verify that the boiler is piped properly into the heating

 

 

system. Refer to Section 6 - Hydronic Piping of the

 

 

Knight Wall Mount Installation and Operation Manual

 

 

for the proper piping methods for the Knight wall mount

 

 

boiler.

 

 

• Check for 120 vac to the boiler pump motor on a call

Temp O/Shoot

 

for heat. If voltage is not present, check the wiring

 

back to the main control board. Replace the main

 

 

 

 

control board if necessary.

 

 

• If 120 vac is present on a call for heat and the boiler

 

 

pump is not operating, replace the pump.

 

 

• Verify that the boiler pump is set to the proper speed

 

 

or that the pump is the proper size. Reference

 

 

Section 6 - Hydronic Piping of the Knight Wall Mount

 

 

Installation and Operation Manual for boiler pump

 

 

specifications.

 

 

 

 

Outlet water temperature has exceeded the

• Verify that the system is full of water and that all air

 

maximum outlet water temperature.

has been properly purged from the system.

 

 

• Verify that the boiler is piped properly into the heating

 

 

system. Refer to Section 6 - Hydronic Piping of the

 

 

Knight Wall Mount Installation and Operation Manual

 

 

for the proper piping methods for the Knight wall mount

 

 

boiler.

 

 

• Check for 120 vac to the boiler pump motor on a call

 

 

for heat. If voltage is not present, check wiring back

 

 

to the main control board. Replace the main control

 

 

board if necessary.

 

 

• If 120 vac is present on a call for heat and the boiler

 

 

pump is not operating, replace the pump.

 

 

 

 

 

 

 

 

 

 

37

 

 

 

 

 

 

 

 

 

Page 36 Page 38
Image 37
Page 36 Page 38
Contents Models 50 Contents Handling ceramic fiber materials Please read before proceedingNiosh stated First Aid When servicing boiler Service What is in this manual?Maintenance TroubleshootingNear boiler piping ServiceKnight wall mount display Control inputs Smart Control ModuleControl outputs How the boiler operates General OperationHow the control module operates Sequence of operationOUT 123.8F129 Sequence of operationBLR SH 41% Rate Display panel menu access Display panel parameter access Parameter table Temperature DataControl Circulation Service Viewable and changeable control parameters Temperature settingsOutdoor air reset DHW settingsData logging FunctionsMaximum SH set point Shift reset curveMinimum SH set point Outdoor air shutdownAnti-cycling SH controlling sensor Control modesSH source Boiler cascade addressCascade offset Service NotificationCirculation pumps Service technician Maintenance Maintenance and annual startupOwner maintenance Maintenance Check water system Flue vent system and air pipingCheck expansion tank Check boiler relief valveCheck all boiler wiring Check ignition ground wiringCheck control settings Inspect ignition and flame sense electrodesCleaning boiler heat exchanger Check flame signalReview with owner Oiled bearing circulatorsBefore troubleshooting TroubleshootingCheck control module fuses Check the followingNo Burner No DisplayOperation Unit Does NotTemperature Resistance Checking temperature sensorsNo Pump NoisyBoiler Pump System Pump DHW PumpFlow Switch/LWCOFlame SequenceNo Flame Ign Anti-cyclingRunning No FlameHigh Limit Auto ResetFan Low Fan Speed LowFan Speed High Fan HighSensor Open Sensor ShortedTemp O/Shoot Parameters Progr Rem Ctrl FltOpen Watch Dog Error Service BlkNo Error Stored Low 24 vacGas Valve Adjustment Combustion Analysis ProcedureOr Obstruction Gas Supply Pressure2Gas Valve Adjustment Gas valve adjustment procedurePage

50-210 specifications

The Lochinvar 50-210 is a powerful and efficient boiler designed for residential and commercial heating applications. This model is a part of Lochinvar’s line of advanced heating solutions, known for their reliability, efficiency, and innovative technologies. The 50-210 offers a high thermal efficiency rating, ensuring that energy consumption is minimized while still providing excellent heating performance.

One of the standout features of the Lochinvar 50-210 boiler is its advanced control system. It is equipped with a user-friendly LCD display that allows easy access to system settings and real-time performance data. This technology enhances user experience, allowing for easy adjustments and monitoring, ensuring optimal performance based on specific heating needs.

The Lochinvar 50-210 is designed with a fully modulating burner, which means it can adjust its output to match the heating demand effectively. This feature not only provides superior comfort but also increases energy savings by preventing the boiler from running at full capacity when it's not necessary. Moreover, the modulating burner minimizes wear and tear, extending the lifespan of the unit.

In terms of safety, the Lochinvar 50-210 incorporates several features such as multiple temperature and pressure sensors, flame safeguard systems, and safety cut-off controls. These safeguard mechanisms ensure that the system operates safely and efficiently, providing peace of mind to users.

The construction of the Lochinvar 50-210 is robust, featuring high-grade stainless steel and a durable heat exchanger. This design helps resist corrosion, ensuring longevity and requiring minimal maintenance over the years. Additionally, its compact design allows for easier installation, making it suitable for various settings, even those with limited space.

Furthermore, the Lochinvar 50-210 operates quietly, which adds to its appeal for residential installations. Its environmental considerations are also noteworthy, with low emissions contributing to cleaner air quality.

Overall, the Lochinvar 50-210 is a sophisticated heating solution that blends efficiency, reliability, and advanced technology. With its user-friendly controls, modulating burner, safety features, and durable construction, it meets the heating demands of modern homes and commercial spaces, making it a top choice for those seeking dependable boiler performance.
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