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

3 Troubleshooting (continued)

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

FAULT

DESCRIPTION

CORRECTIVE ACTION

 

 

 

 

 

 

The unit was running and lost the flame signal.

• Inspect igniter and associated wiring for damage and

 

 

connection. Reference page 25 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

No Flame

 

Gas Connections Section of the Installation and

 

Operation Manual for detailed information concerning

Running

 

the gas supply.

 

 

 

 

(Will require a manual

 

• Verify that

the

tube from

the gas valve

to

the

reset once the condition

 

 

combustion

air

chamber is

connected and

is

not

has been corrected. Press

 

 

damaged.

 

 

 

 

 

the RESET button on the

 

 

 

 

 

 

 

 

 

 

 

 

 

SMART SYSTEM display

 

• Verify that the vent/air intake pipes are installed

to reset.)

 

correctly and there are no obstructions.

 

 

 

 

• Refer to the Checking Manifold Gas Pressure and

 

 

Combustion Analysis Procedure on pages 27 and 28

 

 

of this manual for the proper settings.

 

 

 

 

• Inspect the burners. Reference pages 26 and 27

 

 

of this manual for removal and cleaning procedures.

 

 

Replace if necessary.

 

 

 

 

 

• Replace the main control board.

 

 

 

 

 

 

The outlet water temperature has exceeded the

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

 

setting of the automatic reset high limit.

has been properly purged from the system.

 

 

 

 

• Verify that the appliance is piped properly into the

 

 

heating system. Refer to the Water Connections

 

 

Section of the Installation and Operation Manual for

 

 

the proper piping methods for the Copper-fin.

 

 

 

 

• Check 120 VAC to 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.

 

 

 

Auto Reset

 

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

High Limit

 

pump is not operating, replace the pump.

 

 

 

 

• If the system pump is a variable speed pump,

 

 

ensure that the system flow is not less than the

 

 

boiler flow.

 

 

 

 

 

 

 

• Check temperature setting of the main control

 

 

board.

 

 

 

 

 

 

 

• Check resistance of water sensors and compare to

 

 

Table 3B on page 33 of this manual. Replace

 

 

sensor if necessary.

 

 

 

 

 

• Replace outlet sensor.

 

 

 

 

 

 

 

 

 

 

 

37

Page 36 Page 38
Page 37
Image 37
Lochinvar 502 - 2072, 402 - 2072 service manual No Flame, Running, Auto Reset, High Limit
Page 36 Page 38

502 - 2072, 402 - 2072 specifications

The Lochinvar 402 - 2072 is a versatile and highly efficient boiler designed to meet the heating demands of modern residential and commercial applications. This model stands out due to its innovative technologies, advanced features, and a high level of reliability, making it an ideal choice for consumers looking for an enduring and economical heating solution.

One of the primary characteristics of the Lochinvar 402 - 2072 is its impressive energy efficiency. With an exceptional annual fuel utilization efficiency (AFUE) rating, this boiler ensures minimal energy waste, allowing homeowners and business operators to save significantly on their energy bills. The model incorporates advanced condensing technology that enables it to extract heat from the combustion gases, maximizing heat transfer and reducing emissions.

The Lochinvar 402 - 2072 is built with a robust stainless steel construction that enhances durability and resilience against corrosion and other environmental factors. This material not only prolongs the lifespan of the unit but also contributes to its outstanding thermal efficiency. Additionally, the boiler's compact design allows for flexible installation options, making it suitable for various spaces, including tight utility rooms and basements.

Equipped with a user-friendly control interface, the Lochinvar 402 - 2072 allows for easy monitoring and adjustment of settings. Its advanced digital display provides real-time data on system performance, ensuring the operator can maintain optimal performance and efficiency.

Another noteworthy feature is the unit's quiet operation. The design includes sound-dampening insulation and high-efficiency circulators, keeping noise to a minimum, which is an essential trait for both residential and commercial settings.

The Lochinvar 402 - 2072 is also designed with safety in mind. It incorporates multiple safety features including an automated vent damper, low water cutoff, and a comprehensive control system that monitors various operating conditions. This proactive approach to safety ensures that potential issues are identified and addressed before they become critical.

In conclusion, the Lochinvar 402 - 2072 boiler presents an exceptional combination of efficiency, durability, and user-friendly features. Its advanced condensing technology, stainless steel construction, and focus on safety make it a leading choice in the competitive boiler market, catering to the heating needs of a diverse range of applications while ensuring environmental responsibility. For those in search of a dependable and efficient heating solution, the Lochinvar 402 - 2072 is certainly worth considering.
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