TM

Installation & Service Manual

3Sidewall direct venting (continued)

Sidewall termination – optional concentric vent

Figure 3-9Concentric Vent Dimensional Drawing -

Figure 3-10Concentric Vent

Dimensional

Drawing

-

Models SNR150-100 -- SNR200-100 / CVK3003

Models SNA285-125 -- SNA500-125 / CVK3007

 

 

 

 

 

 

"A"

 

 

 

 

 

 

 

"C" DIA.

"B" DIA.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3"

 

"D"

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(76 MM)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

"E"

 

 

 

"G"

 

"H" DIA.

 

 

 

 

 

"B" DIA. PVC

 

 

 

 

 

 

"F"

 

 

VENT / EXHAUST

 

 

 

 

 

 

 

 

 

A

B

C

D

E

F

G

H

 

 

60"

4"

6"

21 1/8"

10"

7 5/8"

3"

6 5/8"

 

 

(1524 MM)

(102 MM)

(152 MM)

(537 MM)

(254 MM)

(194 MM)

(76 MM)

(168 MM)

NOTICE

Instead of cementing the smaller pipe to

the rain cap, a field-supplied stainless steel

 

 

screw may be used to secure the two (2)

6.Install the Y concentric fitting and pipe assembly through the structure’s hole.

components together when field

disassembly is desired for cleaning (see

FIG. 3-11).

NOTICE

Do not allow insulation or other materials to accumulate inside the pipe assembly when installing through the hole.

￿WARNING

￿WARNING

When using the alternate screw assembly method, drill a clearance hole in the rain cap and a pilot hole in the vent pipe for the screw size being used. Failure to drill adequate holes may cause cracking of PVC components, allowing combustion products to be recirculated. Failure to follow this warning could result in personal injury or death.

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.

7.Install the rain cap and small diameter pipe assembly into the Y concentric fitting and large pipe assembly. Ensure small diameter pipe is bottomed and cemented in the Y concentric fitting for #CVK3003 installations and fastened tightly into the rubber adapter for #CVK3007 installations.

8.Secure the assembly to the structure as shown in FIG. 3-12 using field-supplied metal strapping or equivalent support material.

NOTICE

Ensure termination location clearance

dimensions are as shown in FIG. 3-6.

 

 

If assembly needs to be extended to allow

NOTICE

sidewall thickness 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

Figure 3-11Rain Cap to Vent Pipe Alternate Assembly

 

60 inches (see FIG.’s 3-9 and 3-10).

 

If assembly depth needs to be reduced,

NOTICE

dimension D can be as short as possible.

 

23

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Image 23
Lochinvar SNR150-100, SNA500-125, SNR200-100, SNA285-125, SNA400-125 service manual 9Concentric Vent Dimensional Drawing
Page 22 Page 24

SNA400-125, SNR150-100, SNA285-125, SNR200-100, SNA500-125 specifications

Lochinvar has established itself as a leader in the realm of high-efficiency heating solutions, and its line of condensing boilers, including the SNA500-125, SNR200-100, SNA400-125, SNA285-125, and SNR150-100, exemplifies the brand’s commitment to innovation, efficiency, and reliability.

The SNA500-125 model stands out with its impressive heating capacity, designed for larger commercial applications. Featuring advanced modulating burners, it can precisely adjust its output based on real-time demand, significantly enhancing energy efficiency. The stainless steel heat exchanger ensures robust durability and improved thermal performance, while the integrated controls offer advanced diagnostic capabilities and user-friendly operation.

Next in the lineup, the SNR200-100 serves as a versatile option for mid-sized applications. Its compact design allows for flexible installation, making it a valuable choice for facilities with limited space. The boiler incorporates a high-efficiency combustion system that maximizes fuel utilization, while its low NOx emissions technology aligns with environmental standards, reducing the carbon footprint of users.

The SNA400-125 delivers a robust solution for diverse heating needs, equipped with state-of-the-art modulation technology that not only optimizes efficiency but also offers quiet operation – a crucial feature for facilities where noise reduction is paramount. This model also includes built-in redundancy options, enhancing reliability during peak operational periods.

The SNA285-125 provides a balance of performance and efficiency for smaller commercial settings. Its innovative control system offers precise temperature management and easy integration with existing systems. Energy Star certified, this model is not only cost-effective but supports sustainability efforts in various industries.

Lastly, the SNR150-100 is ideally suited for light commercial applications, featuring a compact footprint and excellent heat transfer capabilities. The user-friendly interface and robust safety features make it an excellent choice for operators prioritizing both ease of use and reliability.

All these models incorporate Lochinvar's commitment to superior design and advanced technologies, setting a benchmark in the high-efficiency heating market. With a focus on long-term performance and compliance with modern environmental standards, Lochinvar continues to deliver top-tier solutions tailored to meet diverse customer needs. Whether for large-scale operations or smaller settings, these boilers represent a significant advancement in commercial heating technology.
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