Bryant 355CAV AIR for Combustion and Ventilation, Fire and Explosion Hazard

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355CAV

Removal of Existing Furnaces from Common Vent Systems

When an existing Category I furnace is removed or replaced, the original venting system may no longer be sized to properly vent the remaining attached appliances. An improperly sized Category I venting system could cause the formation of condensate in the furnace and vent, leakage of condensate and combustion products, spillage of combustion products into the living space, etc.

AIR FOR COMBUSTION AND VENTILATION

!CAUTION

FURNACE RELIABILITY HAZARD

Failure to follow this caution could result in premature component failure.

This furnace can be vented as either a direct vent (2-pipe) furnace or as an optional ventilated combustion air application. A direct vent system shall be installed in accordance with the direct vent (2- pipe) procedures in the Combustion Air and Vent Pipe Systems section within this supplemental instruction. For optional ventilated combustion air applications, refer to the ventilated combustion air option procedures in the same section. Application of this furnace should be indoors with special attention given to vent sizing and material, gas input rate, air temperature rise, unit leveling, and unit sizing.

Combustion-Air and Vent Pipe Systems

For additional venting information contact www.Bryant.com.

General

Vent system or vent connectors of other appliances may need to be resized. For any other appliances when resizing vent systems or vent connectors, system or connector must be sized to approach minimum size as determined using appropriate table found in the NFGC or CAN/CSA-B149.1-05.

The 355CAV furnaces can be vented as either a direct vent furnace or as an optional ventilated combustion air application. A direct vent system shall be installed in accordance with the direct vent (2-pipe) procedures in the following Combustion Air and Vent Pipe Systems section. For optional ventilated combustion air applications, refer to the ventilated combustion air option procedures in the same section. Common venting prohibited.

Direct Vent / 2-Pipe System

In a direct-vent (2-pipe) system, all air for combustion is taken directly from outdoor atmosphere, and all flue products are discharged to outdoor atmosphere. Combustion-air and vent pipes must terminate together in the same atmospheric pressure zone, either through the roof or a sidewall (roof termination preferred). A factory accessory vent termination kit MUST be used in a direct vent (2-pipe) system. See Fig. 34 for required clearances.

Ventilated Combustion Air Option Materials

In a ventilated combustion air option, the vent terminates and discharges the flue products directly to the outdoors similar to a direct vent system. See Fig. 35 for required clearances. All air for combustion is piped directly to the furnace from a space that is well ventilated with outdoor air (such as an attic or crawl space) and the space is well isolated from the living space or garage.

Materials

Combustion-air and vent pipe, fittings, primers, and solvents must conform to American National Standards Institute (ANSI) standards and American Society for Testing and Materials (ASTM) standards. See Table 5 for approved materials for use in the U.S.A.

!WARNING

FIRE AND EXPLOSION HAZARD

Failure to follow this warning could result in personal injury, death, or property damage.

Solvent cements are combustible. Keep away from heat, sparks, and open flame. Use only in well ventilated areas. Avoid breathing in vapor or allowing contact with skin or eyes.

In Canada, construct all combustion-air and vent pipes for this unit of CSA or ULC listed schedule-40 PVC, PVC-DWV or ABSDWV pipe and pipe cement. SDR pipe is NOT approved in Canada.

!WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury, death, or property damage.

All combustion-air and vent pipes must be airtight and watertight. Pipes must also terminate exactly as shown in Fig. 36 for direct vent (2-pipe) system or Fig. 37 for ventilated combustion air option.

An abandoned masonry chimney may be used as a raceway for properly insulated and supported combustion-air (when applicable) and vent pipes. Each furnace must have its own set of combustion-air and vent pipes and be terminated individually, as shown in Fig. 36 for Direct Vent (2-Pipe) system or Fig. 37 for ventilated combustion air option.

A furnace shall not be connected to a chimney flue serving a separate appliance designed to burn solid fuel.

Other gas appliances with their own venting system may also use the abandoned chimney as a raceway providing it is permitted by local code, the current edition of the National Fuel Gas Code and the vent or liner manufacturer’s installation instructions. Care must be taken to prevent the exhaust gases from one appliance from contaminating the combustion air of other gas appliances. Do not take combustion air from inside the chimney when using the Ventilated Combustion Air option.

!CAUTION

UNIT MAY NOT OPERATE HAZARD

Failure to follow this caution may result in intermittent unit operation.

When vent pipe is exposed to temperatures below freezing, such as when it passes through an unheated space or when a chimney is used as a raceway, pipe must be insulated as shown in Table 6 with Armaflex-type insulation.

Furnace combustion air and vent pipe connections are sized for 2- in. pipe. Any pipe size change should be made outside furnace casing in vertical pipe. The transition has to be made as close to the furnace as reasonably possible. (See Fig. 38.)

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Contents Installation Instructions Table of ContentsRequired Notice for Massachusetts Installations Safety Considerations CUT HazardDimensions In. / mm Dimensional DrawingInstallation Codes and Standards Applications Electrostatic Discharge ESD PrecautionsIntroduction Upflow ApplicationCondensate Trap Tubing Alternate Upflow Orientation Condensate Trap Alternate Upflow OrientationCarbon Monoxide Poisoning Hazard Condensate Trap Freeze Protection Upper Inducer Housing Drain ConnectionCondensate Trap Field Drain Attachment Downflow Applications Condensate Trap LocationHorizontal Left Tube Configuration Horizontal Left SUPPLY-AIR Discharge ApplicationsProperty Damage Manual Shutoff GAS Valve Sediment Trapcondensate TrapUnit Operation Hazard Horizontal Right SUPPLY-AIR Discharge ApplicationsConstruct a Working Platform Location Condenste Trap Field Drain AttachmentProhibit Installation on Back Fire or Death HazardUnit MAY not Operate Hazard InstallationFIRE, EXPLOSION, Injury or Death Hazard Furnace, Plenum, and Coil Assembly or Coil Box Locations Reqd PER ROD AIR Ducts Unit MAY not Operate Fire HazardFIRE, Carbon Monoxide and Poisoning Hazard Fire or Explosion Hazard Bottom Closure PanelGas Piping Removing Bottom Closure Panel Electrical Shock Hazard WiringMaximum Capacity of Pipe Disconnect Switch and Furnace Electrical Shock and Fire HazardFire or Electrical Shock Hazard Factory Installed J-Box LocationAccessories AIR for Combustion and Ventilation Fire and Explosion HazardDescription AstmMaterial Pipe Fittings CementFurnace Control Direct Vent Termination Clearance Ventilated Combustion Air Vent Termination Clearance Vent Pipe Termination for Ventilated Combustion Air System Combustion AIR Pipe Unit Corrosion HazardAttachment of Combustion Air Intake Housing Plug Fitting Combustion Air Termination Ventilated Combustion Air OptionCarbon Monoxide Poisoning Property Damage Hazard Vent PipeCombustion Air Termination-Direct Vent / 2-Pipe System Attachment of Vent Pipe304.8mm minimum 76.2mm minimum Vent Termination Extended Exposed Sidewall PipesVent Termination Kit Direct Vent/2-Pipe System Only Two-Pipe Termination Kit Direct Vent/2-Pipe System Only042060 Maximum Allowable Pipe Length Ft / M BtuhUnit Size Condensate Drain Personal Injury HazardContinuous Fan CF Setup Switches START-UP, Adjustment and Safety CheckAir Conditioning A/C Setup Switches Additional Setup Switches SW4Example of Setup Switch in Off Position Prime Condensate Trap with WaterWiring Diagram Inducer Housing Drain Tube Furnace Setup Switch DescriptionSequence of Operation Purge Gas LinesTwo-Stage Thermostat and Two-Stage Low / High Heating Thermidistat Mode See -55 for thermostat connectionsContinuous Blower Speed Selection from Thermostat Super Dehumidify ModeContinuous Blower Mode Heat PumpStep-Modulating Furnace with Single-Speed Air Conditioning Pump Furnace and Two-Speed Air Conditioner Furnace and Two-Speed Heat PumpSet Gas Input Rate Redundant Automatic Gas ValveBurner Orifice A07253 A07254 Altitude Derate Multiplier for U.S.A Burner FlameSet Thermostat Heat Anticipator Set Temperature RiseGas Rate cu Ft/Hr Check Pressure Switches ChecklistCheck Safety Controls Check Primary Limit ControlChecklist Installation Combustion and Vent Piping
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355CAV specifications

The Bryant 355CAV is a state-of-the-art automated vertical machining center designed to enhance precision and efficiency in the manufacturing sector. Renowned for its robust construction, this machine is engineered to handle a broad spectrum of machining tasks, making it suitable for both small and large-scale production environments.

One of the standout features of the Bryant 355CAV is its advanced CNC control system, which provides users with exceptional ease of use. The intuitive user interface allows operators to program complex machining operations with minimal effort, significantly reducing setup times. The machine's high-speed spindle achieves impressive rotational speeds, which allows for quick material removal, ultimately optimizing productivity and throughput.

The Bryant 355CAV exhibits superior rigidity and stability due to its solid cast iron frame and carefully designed structural components. This construction minimizes vibrations during machining, ensuring that even the most intricate parts are produced with high accuracy. The machine's precision ground linear guideways further enhance its performance by providing smooth motion and high load capacity.

Equipped with a large work envelope, the Bryant 355CAV enables manufacturers to accommodate various part sizes and geometries. Additionally, its automatic tool changers can hold a variety of tools, thus facilitating quick transitions between different machining operations without requiring manual intervention. This flexibility is essential for meeting the diverse needs of modern manufacturing.

Another notable characteristic of the Bryant 355CAV is its energy-efficient design. It integrates modern technologies aimed at reducing power consumption while maintaining optimum performance. This environmentally conscious approach not only cuts operational costs but also aligns with the growing demand for sustainable manufacturing practices.

Moreover, the Bryant 355CAV features advanced monitoring capabilities, allowing operators to track machine performance in real time. Data analytics from these systems can be utilized to improve operational efficiency, reduce downtime, and enhance predictive maintenance protocols.

In summary, the Bryant 355CAV is a versatile, high-performance machining center that showcases cutting-edge features and technologies. Its combination of user-friendly controls, sturdy construction, energy efficiency, and advanced monitoring positions it as a vital asset for manufacturers aiming to elevate their productivity and precision in an increasingly competitive landscape.
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