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
Page 37
Image 37
Lochinvar 50-210 service manual Temp O/Shoot
Page 36 Page 38

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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