Installation & Operation Manual

5 Vertical direct venting (continued)

Vertical termination – optional concentric vent

￿WARNING

Do not operate the appliance with the rain cap removed or recirculation of combustion products may occur. Water may also collect inside the larger combustion air pipe and flow to the burner enclosure. Failure to follow this warning could result in product damage or improper operation, personal injury, or death.

CAUTION

DO NOT use field-supplied couplings

to extend pipes. Airflow restriction will

 

 

occur.

6. Install the rain cap and the small diameter pipe

assembly into the roof penetration assembly. Ensure

the small diameter pipe is cemented and bottomed in

the Y concentric fitting for #CVK3003 installations and

fastened tightly into the rubber adapter for #CVK3007

installations.

4.Install the Y concentric fitting pipe assembly up through the structure’s hole and field supplied roof boot/flashing.

NOTICE

Do not allow insulation or other materials

to accumulate inside the pipe assembly

 

when installing through the hole.

5.Secure the assembly to the roof structure as shown below in FIG. 5-6 using field supplied metal strapping or equivalent support material.

Figure 5-6Concentric Vent Roof Installation

Note: CVK3003 shown for illustration purposes.

NOTICE

Ensure termination height is above the

roof surface or anticipated snow level

 

 

(12 inches in U.S.A. or 18 inches in

 

Canada) as shown in FIG. 5-4, page 30.

 

If assembly is too short to meet height

NOTICE

requirement, the two (2) pipes supplied

 

in the kit may be replaced by using the

 

same diameter, field supplied SDR-

 

26 PVC (D2241) pipe for CVK3003

 

and standard schedule 40 PVC for

 

CVK3007. Do not extend dimension

 

D* more than 60 inches (see FIG.’s 4-9

 

and 4-10, page 26).

7.

Cement the appliance combustion air and vent pipes to

 

the concentric vent termination assembly. See FIG. 5-6

 

for proper pipe attachment.

8.

Operate the appliance through one (1) heat cycle to ensure

 

combustion air and vent pipes are properly connected to

 

the concentric vent termination connections.

Multiventing vertical terminations

When two (2) or more direct vent appliances are vented near each other, each appliance must be individually vented (see FIG. 5-7). NEVER common vent or breach vent this appliance. When two (2) or more direct vent appliances are vented near each other, two (2) vent terminations may be installed as shown in FIG. 5-7. It is important that vent terminations be made as shown to avoid recirculation of flue gases.

Figure 5-7Concentric Vent and Combustion Air Vertical Termination

12”

MINIMUM

COMBUSTION

AIR (TYPICAL)

12” (18” FOR CANADA) MINIMUM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL. MAXIMUM OF 24” ABOVE ROOF.

31

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Lochinvar 81 - 286 operation manual 6Concentric Vent Roof Installation, Multiventing vertical terminations
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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.
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