Manuals / Lochinvar / Household Appliance / Boiler

Lochinvar 81 - 286 Alternate vertical concentric venting, Concentric Venting Arrangement

Models: 81 - 286

1 80
Download 80 pages 14.57 Kb
Page 32
Image 32

Installation & Operation Manual

5 Vertical direct venting

Alternate vertical concentric venting

This appliance may be installed with a concentric vent arrangement where the vent pipe is routed through an existing unused venting system; or by using the existing unused venting system as a chase for vent and combustion air routing.

Figure 5-8Concentric Vent Example 1

FLUE EXHAUST

SEAL

Concentric Venting Arrangement

The venting is to be vertical through the roof. The annular space between the O.D. of the vent pipe and the I.D. of the existing unused venting system is utilized for the combustion air source.

The minimum size of the existing vent system required to achieve enough annular space for combustion air can be found in Table 5A below.

The upper and lower termination as well as any other unsealed joints in the existing vent system must be sealed to ensure that all combustion air is drawn from under the vent cap as shown in FIG.’s 5-8 and 5-9.

AIR INLET W/ SCREEN

12"

MIN.

COMBUSTION AIR

EXISTING

SEAL

SEALED

CAP

Approved venting materials must be used as specified in Table 3A on page 17.

FLUE OUTLET

Follow all vent / air termination and clearance requirements per this section to the appropriate example. Installation must comply with local requirements and with the National Fuel Gas Code.

*For concept illustration only. Individual installations

may vary due to job site specific equipment.

Figure 5-9Concentric Vent Example 2

The maximum allowable equivalent vent and air intake lengths for this venting arrangement are to be determined from the General Venting Section.

If an existing unused venting system is converted for use with this method of concentric venting, the installer must ensure that the existing venting system is clean and free from particulate contamination that will harm this appliance and cause increased nuisance calls or maintenance. See Table 1A on page 11 for a list of corrosive contaminants and sources.

Two example scenarios of a concentric venting arrangement are shown for illustrative purposes in FIG.’s 5-8 and 5-9.

Table 5A Alternate Vertical Concentric Vent / Chase Sizes

Model

Vent / Air

Minimum Existing

Inlet Size

Vent / Chase Size

 

 

 

 

81 - 211

3"

5"

286

4"

7"

SEAL

AIR INLET W/ SCREEN

SEAL

FLUE EXHAUST

COMBUSTION AIR

SEAL

 

 

 

 

EXISTING

 

 

 

 

 

 

 

 

 

 

 

 

 

SEALED

 

 

 

 

 

 

CAP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FLUE OUTLET

*For concept illustration only. Individual installations

may vary due to job site specific equipment.

32

Page 31 Page 33
Page 32
Image 32
Lochinvar 81 - 286 operation manual Alternate vertical concentric venting, Concentric Venting Arrangement
Page 31 Page 33

81 - 286 specifications

Lochinvar 81 - 286 is a state-of-the-art boiler recognized for its efficiency and reliability in both residential and commercial applications. This high-performance heating solution is designed to meet the diverse needs of users while adhering to modern environmental standards.

One of the standout features of the Lochinvar 81 - 286 is its advanced condensing technology. This allows the unit to harness more heat from the combustion gases, significantly boosting its thermal efficiency. With an impressive efficiency rating of over 95%, users can expect lower energy bills and reduced carbon emissions, making this boiler an environmentally friendly choice.

The Lochinvar 81 - 286 incorporates a robust stainless steel heat exchanger that guarantees durability and longevity. This corrosion-resistant material not only prolongs the unit's life but also ensures consistent performance over time. Additionally, the heat exchanger’s design facilitates optimal heat transfer, further enhancing the boiler's efficiency.

In terms of control, the Lochinvar 81 - 286 features a user-friendly control interface that simplifies operation. The boiler is equipped with advanced modulation capabilities, allowing it to adjust its output based on real-time heating demands. This responsiveness reduces energy waste and optimizes comfort levels within the space it serves.

The boiler also supports a variety of installation configurations, providing flexibility for different building layouts. Its compact design allows for easy installation in restricted spaces, while versatile venting options facilitate integration into various systems.

Safety is a paramount consideration in the design of the Lochinvar 81 - 286. The unit comes with integrated safety features such as a built-in diagnostic system that alerts users to any potential issues before they escalate. This proactive technology helps in maintaining seamless operation and reducing downtime.

Finally, the Lochinvar 81 - 286 is compliant with the latest regulations and industry standards, ensuring that it meets the expectations of both consumers and environmental agencies. With its impressive combination of efficiency, durability, and advanced technology, the Lochinvar 81 - 286 stands out as a top choice for anyone seeking a high-performance heating solution. This boiler not only addresses the immediate needs of heating but also supports long-term sustainability initiatives, proving to be a wise investment for the future.