Bryant 355CAV Vent Pipe, Combustion Air Termination-Direct Vent / 2-Pipe System

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355CAV

Crawlspace terminations require the open end of the combustion air intake pipe to point downward. Maintain 3 inches (76.2mm) of clearance below the floor joist insulation and 12 inches (304.8mm) above the grade. Screen the elbow with a wire mesh screen no smaller than 3/8-in. (9.5mm) square. (See Fig. 42 and 43.)

!WARNING

CARBON MONOXIDE POISONING HAZARD

Failure to follow the steps outlined below for each appliance connected to the venting system being placed into operation could result in carbon monoxide poisoning or death.

The following steps shall be followed for each appliance connected to the venting system being placed into operation, while all other appliances connected to the venting system are not in operation:

1.Seal any unused openings in venting system.

2.Inspect the venting system for proper size and horizontal pitch, as required in the National Fuel Gas Code, ANSI Z223.1-2006/NFPA 54-2006 or the CSA B149.1, Natural Gas and Propane Installation Code and these instructions. Determine that there is no blockage or restriction, leakage, corrosion and other deficiencies, which could cause an unsafe condition.

3.As far as practical, close all building doors and windows and all doors between the space in which the appliance(s) connected to the venting system are located and other spaces of the building.

4.Close fireplace dampers.

5.Turn on clothes dryers and any appliance not connected to the venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they are operating at maximum speed. Do not operate a summer exhaust fan.

6.Follow the lighting instructions. Place the appliance being inspected into operation. Adjust the thermostat so appliance is operating continuously.

7.Test for spillage from draft hood equipped appliances at the draft hood relief opening after 5 minutes of main burner operation. Use the flame of a match or candle.

8.If improper venting is observed during any of the above tests, the venting system must be corrected in accordance with the National Fuel Gas Code, ANSI Z223.1- 2006/NFPA 54-2006 and/or CSA B149.1, Natural Gas and Propane Installation Code.

9.After it has been determined that each appliance connected to the venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers and any other gas-fired burning appliance to their previous conditions of use.

Combustion Air Termination-Direct Vent / 2-Pipe System

Combustion air pipe must terminate outside the structure with the vent pipe as shown in Fig. 36. Follow the clearance requirements shown in Fig. 39. Refer to Vent Termination section for complete details on termination options.

VENT PIPE

General

Furnace vent connection must be attached as shown in Fig. 39.

!WARNING

CARBON MONOXIDE POISONING AND

PROPERTY DAMAGE HAZARD

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

Vent pipes must be airtight.

NOTE: A 2-in. (50.8mm) diameter pipe must be used within the furnace casing. Make all pipe diameter transitions outside furnace casing per Fig. 38.

The minimum vent pipe length for these furnaces is 5 ft. (1.5M) Short pipe lengths (5-8 ft or 1.5M - 2.4M) may discharge condensate droplets. These condensate droplets may be undesirable. A 12-in. (304.8mm) minimum offset pipe section is recommended to reduce excessive condensate droplets from exiting vent pipe outlet. (See Fig. 44.)

Attachment of Vent Pipe

NOTE: Vent pipe system has the same diameter and same length as combustion air pipe as mentioned in section “Combustion Air Pipe and Vent Pipe Diameter.”

!CAUTION

UNIT DAMAGE HAZARD

Failure to follow this caution may result in unit component damage.

Inducer housing outlet cap must be installed and fully seated against inducer housing. Clamp must be tightened to prevent any condensate leakage.

Vent pipe must be installed and fully seated against inducer housing. Clamp must be tightened to prevent any condensate leakage.

1.Determine location of vent pipe connection to inducer housing as shown in Fig. 39 for application.

2.Verify synthetic rubber inducer housing outlet cap and clamp are installed on appropriate unused inducer housing connection and that clamp is tight.

3.Install vent pipe grommet (factory-supplied in loose parts bag) into selected furnace casing vent pipe hole. (See Fig. 28.)

4.Be certain that mating surfaces of inducer housing connection synthetic rubber coupling, and 2-in. diameter vent pipe are clean and dry. Assemble the synthetic rubber vent coupling (with 2 loose clamps) onto inducer housing connection. Insert the 2-in. diameter vent pipe through the synthetic rubber coupling and fully into inducer housing connection until it touches a stop inside the inducer housing outlet. Tighten the screws on both clamps to 15-inlb. of torque.

5.Install casing hole filler cap (factory-supplied in loose parts bag) in unused vent pipe casing hole.

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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 ApplicationCarbon Monoxide Poisoning Hazard Condensate Trap Alternate Upflow OrientationCondensate Trap Tubing Alternate Upflow Orientation Condensate Trap Field Drain Attachment Upper Inducer Housing Drain ConnectionCondensate Trap Freeze Protection Downflow Applications Condensate Trap LocationHorizontal Left Tube Configuration Horizontal Left SUPPLY-AIR Discharge ApplicationsProperty Damage Manual Shutoff GAS Valve Sediment Trapcondensate TrapConstruct a Working Platform Horizontal Right SUPPLY-AIR Discharge ApplicationsUnit Operation Hazard Location Condenste Trap Field Drain AttachmentProhibit Installation on Back Fire or Death HazardFIRE, EXPLOSION, Injury or Death Hazard InstallationUnit MAY not Operate Hazard Furnace, Plenum, and Coil Assembly or Coil Box Locations Reqd PER ROD AIR Ducts FIRE, Carbon Monoxide and Poisoning Hazard Fire HazardUnit MAY not Operate Gas Piping Bottom Closure PanelFire or Explosion Hazard Removing Bottom Closure Panel Maximum Capacity of Pipe WiringElectrical Shock Hazard Disconnect Switch and Furnace Electrical Shock and Fire HazardAccessories Factory Installed J-Box LocationFire or Electrical Shock Hazard 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 FlameGas Rate cu Ft/Hr Set Temperature RiseSet Thermostat Heat Anticipator 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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