Installation & Operation Manual

5 Vertical direct venting

Vertical termination – optional concentric vent: Models 151 - 601

￿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 33.

 

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 4-10 and 4-11,

 

page 29).

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.

34

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Lochinvar 151 operation manual Multiventing vertical terminations, Minimum Combustion AIR Typical
Page 33 Page 35

151 specifications

Lochinvar 151,286 is a notable model in the realm of commercial water heating solutions, designed primarily for large-scale applications. This model incorporates advanced technologies and features that set it apart in terms of efficiency, usability, and reliability.

One of the hallmark features of Lochinvar 151,286 is its high-efficiency system that leverages condensing technology. This technology enables the unit to extract additional heat from exhaust gases, allowing it to operate at an impressive annual fuel utilization efficiency (AFUE) rating. This not only reduces energy consumption, but it also significantly lowers operational costs.

The Lochinvar 151,286 is equipped with a robust stainless steel heat exchanger, which provides both durability and enhanced thermal efficiency. This design withstands the rigors of high-demand environments, making it ideal for restaurants, schools, hospitals, or any facility requiring consistent hot water supply. Its compact footprint allows it to be installed in tight spaces without sacrificing performance.

Another standout characteristic is its intelligent control system. The built-in touchscreen interface offers users an intuitive way to manage settings, monitor performance, and troubleshoot issues. This smart technology aids in simplifying maintenance and improves overall system reliability. The unit also features advanced safety protocols, including multiple sensors that monitor operation and provide alerts in case of irregular performance.

In terms of capacity, the Lochinvar 151,286 can deliver an impressive output, accommodating varying demands with ease. Its innovative modulation capabilities allow the unit to adjust its heating output based on real-time hot water needs, ensuring unmatched comfort and efficiency.

Supporting the model’s performance are versatile connectivity options. Lochinvar 151,286 can integrate seamlessly with building management systems, allowing facility managers to monitor and control heating processes remotely. This level of connectivity not only enhances control but also supports energy-saving strategies across the facility.

In conclusion, Lochinvar 151,286 stands out as a premium choice for commercial water heating needs. With its high-efficiency ratings, durable construction, intelligent control system, impressive capacity, and versatile connectivity, it ensures that hot water is delivered reliably and efficiently, meeting the demands of modern businesses while reducing energy costs. This combination of technology and design makes it an essential component for any large-scale facility focused on performance and sustainability.
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