VENTING INSTALLATION

Continued

Screws

B

A

Figure 9 - Elbow Offset

FIRESTOP SPACERS (FS-10, 1100EFS-10DM FOR JM36)

Firestop spacers are required at each point where the chimney penetrates a floor space. Their purpose is to establish and maintain the required clearance between the chimney and the combustible materials. When the pipe passes through a framed opening into a living space above, the firestop must be placed onto the ceiling from below as shown in Figure 10.

They also provide complete separation from one floor space to another or attic space as required by most codes. When the double wall pipe passes through a framed opening into an attic space, the firestop must be placed into an attic floor as shown in Figure 11.

 

Existing

 

Ceiling

 

Frame

 

Firestop

 

Spacer

 

Screws or

 

Staples

 

(Min. of 8)

Figure 10 - Firestop Spacer with Living

 

Space Above Ceiling

Firestop

Screws or Staples

(Min. of 8)

Spacer

 

 

Existing

 

Ceiling

 

Frame

Figure 11 - Firestop Spacer with Attic

Space Above Ceiling

PENETRATING THE ROOF

To maintain a 1" (JM36) or 2" (JM42/JM50) clear- ance to the pipe on a roof with a pitch, a rectangular opening must be cut.

1.Determine the center point through which the pipe will penetrate the roof.

2.Determine the center point of the roof. Pitch is the distance the roof drops over a given span, usually 12". A 6/12 pitch means that the roof drops 6" for each 12" one measure horizontally down from the roof rafters.

3.Use the roof opening chart (Figure 12) to determine the correct opening length and flashing required.

 

17" Min.

 

30" Min.

 

(432mm)

1" Min.

 

(762mm)

 

 

 

 

(25mm)

 

 

 

 

1" Min.

 

 

 

(25mm)

 

 

1" Min.

 

 

 

(25mm)

 

 

 

 

Opening "A"

Pitch

Slope

Opening "A"

Used Flashing

 

 

Max.

Model No.

Flat

0°

17"

V6F-10DM

0-

26.6°

19"

V6F-10DM

6/12

 

 

 

6/12-

45.0°

24"

V12F-10DM

12/12

 

 

 

 

Roof Opening JM36

 

19.5" Min.

 

30" Min.

 

(495mm)

2" Min.

(762mm)

 

 

 

 

 

(51mm)

2" Min.

 

 

 

 

 

 

(51mm)

 

 

2" Min.

 

 

 

(51mm)

 

 

 

 

Opening "A"

Pitch

Slope

Opening "A"

Used Flashing

 

 

Max.

Model No.

Flat

0°

19.5"

V6F-10DM

0-

26.6°

22'

V6F-10DM

6/12

 

 

 

6/12-

45.0°

27"

V12F-10DM

12/12

 

 

 

 

Roof Opening JM42/50

Figure 12 - Roof Opening Measurements

10

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117541-01A

Page 9 Page 11
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Image 10
Desa (V)JM42, (V)JM50, (V)JM36 installation manual Firestop Spacers FS-10, 1100EFS-10DM for JM36, Penetrating the Roof
Page 9 Page 11

(V)JM36, (V)JM50, (V)JM42 specifications

The Desa WCM-50J, WCM-36J, and WCM-42J are part of the (V)JM50 series and (V)JM36 series, renowned for their versatility and efficiency in various applications. These models are designed to meet the dynamic needs of modern users, providing reliable performance in multiple operating conditions.

One of the standout features of these models is their energy efficiency. Equipped with advanced thermal management systems, the WCM series optimizes power consumption while maintaining high output levels. This energy-efficient design not only reduces operational costs but also aligns with environmental sustainability practices, making them suitable for eco-conscious consumers.

In terms of technology, the WCM series integrates cutting-edge automation capabilities. These machines feature user-friendly interfaces that allow for easy programming and monitoring of operations. The intuitive controls enable users to adapt settings quickly to match specific requirements, enhancing productivity and minimizing downtime.

Additionally, the WCM-50J, WCM-36J, and WCM-42J models incorporate robust safety features to protect operators and equipment. Safety interlocks and emergency-stop mechanisms are standard, ensuring that the machines are safe to operate in diverse working environments. The durability of the build materials used in these models contributes to their long lifespan, reducing the need for frequent maintenance or replacements.

The compact design of the WCM series enhances their adaptability. Whether in a crowded workshop or a spacious industrial setting, these machines can be integrated seamlessly. Their lightweight construction does not compromise stability, allowing for easy repositioning as needed without sacrificing safety or performance.

Customer feedback highlights the exceptional reliability of the WCM series under various workloads. Users appreciate the consistent quality of output, which is essential for maintaining high standards in production and service delivery.

Overall, the Desa WCM-50J, WCM-36J, and WCM-42J, along with the (V)JM50 and (V)JM36 series, are ideal choices for those seeking advanced, efficient, and safe solutions in today’s competitive market. Their combination of innovative technology, user-friendly operation, and durability makes them a valuable investment for businesses aiming to enhance productivity and sustainability.
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