Inspect and clean the heat exchanger

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

2 Maintenance

1.Turn off the main electrical power to the appliance.

2.Turn off the main manual gas shutoff to the appliance.

3.Remove the lower outer fron access door.

4.Disconnect the manifold(s) from the gas train using the union(s) just below each gas valve.

5.Disconnect wiring to the hot surface igniter(s) and ground.

6.Disconnect burner pressure line at burner.

7.Remove the screws from the manifold mounting bracket(s) and remove the manifold(s).

8.Remove the screws from the burner mounting flanges and slide the burner(s) out toward the front of the unit. Use caution to prevent damage to the burners, refractory, hot surface igniter, and wiring.

9.Remove the inner jacket panel mounting screws and slide the panel assembly out toward the front of the appliance. Use caution to prevent damage to the refractory and hot surface igniter.

10.Check “V” baffles along the front and back edges of the heat exchanger (FIG. 2-5). Remove and clean if necessary.

11.Remove soot from the heat exchanger with a stiff bristle brush. Use a vacuum to remove loose soot from the surfaces and inner chamber.

12.If additional cleaning is required, the heat exchanger can be removed by disconnecting all water piping to the heat exchanger, removing the screws holding the heat exchanger to the inner left side panel, and sliding the heat exchanger towards the front of the appliance. Once the heat exchanger is removed from the appliance, a garden hose can be used to wash the tubes to ensure that all soot is removed from the heat exchanger surfaces.

NOTICE	Do not wet the refractory located on the
	inside of the combustion chamber.
	inside of the combustion chamber.

HEAT

EXCHANGER

Figure 2-5_Location of the Heat Exchanger Inside Jacket

Review with owner

1.Review the User’s Information Manual with the owner.

2.Emphasize the need to perform the maintenance schedule specified in the User’s Information Manual (and in this manual as well).

3.Remind the owner of the need to call a licensed contractor should the appliance or system exhibit any unusual behavior.

4.Remind the owner to follow the proper shutdown procedure and to schedule an annual start-up at the beginning of the next heating season.

Oiled bearing circulators

Inspect the pump every six (6) months and oil as necessary. Use SAE 30 non-detergent oil or lubricant specified by the pump manufacturer.

13.Ensure that all burner ports are cleaned to remove any soot (reference this section).

14.Carefully reinstall the heat exchanger, “V” baffles, and frame runners if removed from the appliance.

NOTICE

Make sure the frame runners seal securely where they contact the front and rear compartment refractory.

15.Carefully reinstall inner jacket panels, burners, manifolds, wires and hoses. Use new gasket material to ensure a proper air seal.

16.Reassemble all gas and water piping. Test for gas leaks.

17.Reassemble outer jacket panels.

18.Cycle the appliance and check for proper operation.

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.