EXAMPLE:

An 042080 size furnace located in Indianapolis, elevation 650 ft above sea level, could be installed in an application requiring 3 elbows and 17 ft of vent pipe, along with 5 elbows and 16 ft of combustion-air pipe. Table 6 indicates this application would allow a 1-1/2-in. diameter vent pipe, but require a 2-in. diameter combustion air pipe (1-1/2-in. pipe is good for 20 ft with 3 elbows, but only 10 ft with 5 elbows). Therefore, 2-in. diameter pipe must be used for both vent and combustion-air pipes since larger required diameter must always be used for both pipes. If same installation were in Albuquerque, elevation 5250 ft above sea level, installation would require 2-in. vent pipe and combustion-air pipe. At 5001- to 6000-ft elevation, 1-1/2- in. pipe is not allowed with 5 elbows, but 2-in. pipe is good for 68 ft with 5 elbows.

C.Combustion-Air and Vent Pipe Attachment

NOTE: All pipe joints must be watertight except attachment of combustion-air pipe to inlet housing connection since it may be necessary to remove pipe for servicing.

1.Attach combustion-air pipe as follows:

a.Determine location of combustion-air intake pipe con- nection to combustion-air intake housing as shown in Fig. 28 for application.

b.Reposition combustion-air intake housing plug fitting in appropriate unused intake housing connection.

c.Insert perforated disk assembly (factory supplied) in intake housing where combustion-air intake pipe will be connected.

d.Install pipe support (factory-supplied in loose parts bag) into selected furnace casing combustion-air pipe hole. Pipe support should be positioned to bottom of casing hole.

e.Insert 2-in. diameter pipe into intake housing.

NOTE: A 2-in. diameter pipe must be used within the furnace casing. Make all pipe diameter transitions outside furnace casing.

f. Drill a 1/8-in. hole in 2-in. combustion-air pipe using hole in intake housing as a guide.

g.Install a field-supplied No. 6 or No. 8 sheet metal screw into combustion-air pipe.

NOTE: DO NOT OVERTIGHTEN SCREW. Breakage to intake housing or fitting may cause air leakage to occur.

NOTE: Do not attach combustion-air intake pipe permanently to combustion-air intake housing since it may be necessary to remove pipe for service of ignitor or flame sensor.

12″ MIN

12″ MIN

VENT PIPE

VENT PIPE

COMBUSTION-AIR PIPE

COMBUSTION-AIR PIPE

HORIZONTAL TO ROOF

HORIZONTAL TO SIDEWALL

 

COMBUSTION-AIR PIPE

 

VENT PIPE

COMBUSTION-AIR PIPE

 

 

12″ MIN

12″ MIN

VENT PIPE

 

VERTICAL TO ROOF

VERTICAL TO SIDEWALL

NOTE: A 12 In. minimum offset pipe section is recommended with short (5 to 8 ft) vent systems. This recommendation is to reduce excessive condensate droplets from exiting the vent pipe.

A96230

Fig. 29ÐShort Vent (5 to 8 Ft) System

Ð23Ð

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Bryant 355M-40-5, 355M-40-4 operating instructions Example, Combustion-Air and Vent Pipe Attachment
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355M-40-4, 355M-40-5 specifications

The Bryant 355M-40-5 and 355M-40-4 are innovative CNC cylindrical grinders designed to meet the demands of precision machining in various industrial applications. These machines stand out due to their robust construction, advanced technology, and versatile functionalities, which are critical for achieving high-quality grinding results.

One of the main features of the Bryant 355M-40-5 and 355M-40-4 is their precision grinding capability. With high spindle speeds and excellent rigidity, these grinders are engineered to deliver superior surface finishes even on complex geometries. The machines are equipped with advanced dressing systems that ensure consistent wheel profiles, enhancing performance and reducing cycle times.

The Bryant 355M-40-5 differentiates itself through its multi-axis capability, allowing for the grinding of intricate shapes and features without the need for extensive setup changes. Operators can easily program complex grinding sequences through the user-friendly interface, which supports both manual and automated operations. This flexibility is crucial in manufacturing environments that require quick turnaround times and adaptability to various workpieces.

Meanwhile, the Bryant 355M-40-4 focuses on efficiency and productivity, featuring a streamlined design that optimizes workflow. The machine is fitted with high-precision linear guides and ball screws, ensuring smooth and accurate movements during the grinding process. This results in minimal wear and tear, thereby extending the machine's lifespan and maintaining accuracy over time.

Key technologies incorporated into both models include state-of-the-art control systems that enable real-time monitoring and feedback during operations. This feature allows operators to make on-the-fly adjustments to optimize grinding parameters, leading to improved performance and reduced scrap rates. Additionally, the integration of automation solutions, such as robotic loading systems, enhances productivity by minimizing downtime and labor costs.

The Bryant 355M-40-5 and 355M-40-4 are built with durability in mind, utilizing high-strength materials that resist deformation and wear. Their thermal stability ensures consistent performance even under varying operating conditions, making them a reliable choice for high-volume production.

In summary, the Bryant 355M-40-5 and 355M-40-4 models are exemplary CNC cylindrical grinders that combine precision, efficiency, and advanced technology. Their features make them suitable for a wide range of grinding applications, from tool manufacturing to automotive components, ensuring that they remain competitive in the ever-evolving landscape of manufacturing technology.
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