Bryant 355MAV instruction manual Procedure 4-AIR Ducts, General Requirements

Page 20

FURNACE

CD5 OR CK5

COIL ASSEMBLY

OR KCAKC

COIL BOX

COMBUSTIBLE

FLOORING

SHEET METAL

PLENUM

FLOOR

OPENING

A96284

Fig. 20—Furnace, Plenum, and Coil Assembly or

Coil Box Installed on a Combustible Floor

PERFORATED

DISCHARGE DUCT

FLANGE

NO

YES

210 DEG.

MIN

YES

A93029

Fig. 21—Duct Flanges

CAUTION: The entire length of furnace MUST be supported when furnace is used in a horizontal position to ensure proper draining. When suspended, bottom brace supports sides and center blower shelf. When unit is supported from the ground, blocks or pad should support sides and center blower shelf area.

PROCEDURE 4—AIR DUCTS

A. General Requirements

The duct system should be designed and sized according to accepted national standards such as those published by: Air Conditioning Contractors Association (ACCA), Sheet Metal and Air Conditioning Contractors National Association (SMACNA) or American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE), or consult The Air Systems Design Guidelines reference tables available from your local distributor. The duct system should be sized to handle the required system design CFM at the design static pressure.

When a furnace is installed so that the supply ducts carry air to areas outside the space containing the furnace, the return air must also be handled by a duct(s) sealed to the furnace casing and terminating outside the space containing the furnace.

Secure ductwork with proper fasteners for type of ductwork used. Seal supply- and return-duct connections to furnace with code approved tape or duct sealer.

Flexible connections should be used between ductwork and furnace to prevent transmission of vibration. Ductwork passing through unconditioned space should be insulated to enhance system performance. When air conditioning is used, a vapor barrier is recommended.

—20—

Page 19 Page 21
Image 20
Page 19 Page 21
Contents Installation, Start-up, and Operating Instructions Table of ContentsLocation Codes and Standards Safety ConsiderationsIntroduction Dimensions Unit SizeInstaller Packet Includes Clearances to CombustiblesElectrostatic Discharge ESD Precaution Procedure Applications Procedure 1-GENERALCondensate Trap Tubing Factory-Shipped Orientation Procedure 2-UPFLOW ApplicationsCondensate Trap Location Factory-Shipped Orientation Condensate Trap Location Alternate Upflow Orientation Condensate Trap Tubing Alternate Upflow OrientationPressure Switch Tubing Procedure 3-DOWNFLOW ApplicationsCondensate Trap Field Drain Attachment Condensate Trap Freeze ProtectionDownflow Tube Configuration Right-Hand Trap Installation Condensate Trap TubingCondensate Trap Field Drain Attachment Condensate Trap Field Drain Attachments Construct a Working PlatformAttic Location and Working Platform Horizontal Right Tube Configuration Location Procedure 1-GENERAL Furnace Location for Proper Condensate DrainageProhibit Installation on Back Procedure 2-LOW-FIRE only InstallationInstallation Procedure 1-LEVELING Legs if Desired Procedure 3-FURNACE Location Relative to CoolingequipmentProcedure 4-HAZARDOUS Locations Opening Dimensions Furnace Plenum Opening Floor OpeningFloor and Plenum Opening Dimensions Procedure 3-INSTALLATION in Horizontal ApplicationsProcedure 4-AIR Ducts General RequirementsReturn Air Connections Ductwork Acoustical TreatmentSupply Air Connections Procedure 5-FILTER Arrangement Procedure 6-BOTTOM Closure PanelProcedure 7-GAS Piping Filter InformationBottom Filter Arrangement Internal Pipe Diameter Size Maximum Capacity of PipeNominal Length of Pipe FT Procedure 8-ELECTRICAL Connections WiringAccessories Electrical DataProcedure 9-DIRECT Venting Removal of Existing Furnaces from Common Vent SystemsUnit Wiring Diagram Control Center Combustion-Air and Vent Piping355MAV Variable Speed Furnace Control Location Clearance FT OpeningCombustion-Air and Vent Pipe Connections Short Vent 5 to 8 ft System Maximum Allowable Pipe Length ft Altitude FT4001 to 5000‡ Intake Housing Plug Fitting Drain Roof Termination Preferred Concentric Vent and Combustion-Air RoofTermination Preferred Sidewall Termination of Less than 12 General Procedure 10-CONDENSATE DrainMultiventing and Vent Terminations Condensation Drain Protection ″ 25 mm Maximum TYP Example of Field Drain Attachment Sequence of OperationProcedure 1-SELF-TEST Mode Procedure 2-HEATING ModeProcedure 3-HEATING MODE-TWO Stage Procedure 4-EMERGENCY Heat ModeProcedure 5-COOLING Mode Procedure 6-HEAT Pump ModeSingle-Speed Applications Two-Speed ApplicationsProcedure 7-CONTINUOUS FAN Mode Procedure 8-COMPONENT TestProcedure 9-BYPASS Humidifier Mode Procedure 10-DEHUMIDIFICATION ModeProcedure 2-SELECT Setup Switch Positions Procedure 11-ZONE ModeSTART-UP Procedures Procedure 1-GENERAL Air Conditioning A/C Airflow Switch Position Setup Switches SWAIR Setup Allowable Furnace Model Setup Switch Position TonsProcedure 5-ADJUSTMENTS Procedure 3-PRIME Condensate Trap with WaterProcedure 4-PURGE GAS Lines Filling Condensate Trap Altitude Altitude AVG GAS Specific Gravity of Natural GASHeat Value United States Canada Set Temperature Rise Redundant Automatic Gas ValveAltitude Derate Multiplier for U.S.A Set Thermostat Heat AnticipatorExample Altitude Percent Derate MultiplierProcedure 6-CHECK Safety Controls Check Pressure SwitchesGas Rate Cu Ft/Hr Check Primary Limit ControlProcedure 7-CHECKLIST Amp Draw Check with AmmeterCHECKLIST-INSTALLATION Combustion and Vent Piping CHECKLIST-START-UPBook/Tab 1/6 Catalog No
Related manuals
Manual 12 pages 42.74 Kb

355MAV specifications

The Bryant 355MAV is a remarkable model that stands out in the HVAC (heating, ventilation, and air conditioning) industry for its efficiency, reliability, and advanced technology. This unit is specifically designed to provide homeowners with excellent comfort while maintaining energy efficiency, making it an ideal choice for residential applications.

One of the standout features of the Bryant 355MAV is its variable speed compressor. This technology allows the system to adjust its cooling output based on the current temperature needs of the home. By operating at multiple speed levels, the compressor can maintain a more consistent indoor climate while using significantly less energy than traditional single-speed systems. This capability translates to lower energy bills and enhanced comfort.

Additionally, the Bryant 355MAV integrates an advanced control system that offers precise temperature regulation. Homeowners can easily set their desired indoor conditions, and the thermostat will communicate with the system to ensure optimal performance. This smart technology not only enhances comfort but also extends the lifespan of the unit by preventing unnecessary strain during operation.

The 355MAV also features significant advancements in sound reduction technology. Designed with noise-absorbing materials and a quiet operation mode, this unit ensures that indoor comfort is maintained without the disruption of loud operational sounds. This makes it a perfect choice for residential settings, particularly in areas where noise sensitivity is a concern.

Energy efficiency is another key characteristic of the Bryant 355MAV. The unit is certified with a high Seasonal Energy Efficiency Ratio (SEER) rating, which means it meets strict energy consumption standards. This not only reflects its eco-friendliness but also contributes to significant savings on utility bills over time.

Moreover, the Bryant 355MAV uses environmentally friendly refrigerants that comply with EPA regulations, further solidifying its commitment to sustainability. This, combined with durable construction and a reliable warranty, ensures that homeowners can expect lasting performance from the system.

In conclusion, the Bryant 355MAV offers an impressive array of features, including a variable speed compressor, advanced control systems, sound reduction technology, and high energy efficiency. These characteristics make it an exceptional option for those seeking a reliable and efficient HVAC solution in their homes. With its commitment to comfort, savings, and sustainability, the Bryant 355MAV continues to be a popular choice among homeowners looking to enhance their indoor environments.
Top Page Image Contents