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

3 Troubleshooting

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

FAULT

DESCRIPTION

CORRECTIVE ACTION

 

 

 

 

 

The unit has failed to prove burner flame

• Inspect igniter and associated wiring for damage and

 

upon ignition.

connection.

Reference page 27 of this manual for

 

 

removal and cleaning procedure.

Replace

if

 

 

necessary.

 

 

 

 

 

• Check for proper electrical grounding of unit.

 

 

 

• Check incoming supply gas pressure. Refer to the

 

 

Gas Connections Section in the Installation and

 

 

Operation Manual for detailed information concerning

 

 

the gas supply.

 

 

 

 

• Verify that the tube from the gas valve to the combustion

 

 

air chamber is connected and is not damaged.

 

No Flame Ign

 

• Verify that the vent/air intake pipes are correctly

(Will require a manual

 

installed and that there are no obstructions.

 

reset. Press the RESET

 

 

 

 

 

button on the SMART

 

• Inspect the

burners. Reference pages

28 and

29

SYSTEM display to reset.)

 

of this manual for removal and cleaning procedures.

 

 

Replace if necessary.

 

 

 

 

• Refer to the Checking Manifold Gas Pressure and

 

 

Combustion Analysis Procedure on pages 29 and 30

 

 

of this manual for the proper settings.

 

 

 

 

• Check for 24 VAC to the gas valve during the ignition

 

 

attempt. If no voltage is present, check the wiring

 

 

between the gas valve and the main control board.

 

 

 

• Replace the wiring or the main control board as

 

 

necessary.

 

 

 

HSI Current Low

Amp draw of the hot surface igniter did not

• Measure the amp draw of the hot surface igniter during

(Will require a manual

meet the minimum requirement of 2.6 amps.

the trial for ignition stage. If less than 2.6 amps

reset once the condition

 

replace the hot surface igniter.

has been corrected. Press

 

• If more than 2.6 amps replace the control module.

the RESET button on the

 

SMART SYSTEM display

 

 

to reset.)

 

 

 

 

 

Flame CKT

The main control board has detected an

• Replace the main control board.

internal fault.

 

Error

 

 

 

38

Page 37 Page 39
Page 38
Image 38
Lochinvar 2072, 402 service manual No Flame Ign, HSI Current Low, Flame CKT, Error
Page 37 Page 39

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.

Furthermore, the unit supports multiple venting options, accommodating different building architectures and layouts. This versatility makes it an ideal choice for new builds and retrofitting existing systems.

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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