Bryant 355MAV Prohibit Installation on Back, Procedure 2-LOW-FIRE only Installation

Page 16

CAUTION: If these furnaces are used during construction when adhesives, sealers, and/or new carpets are being installed, make sure all combustion and circulating air requirements are followed. If operation of furnace is required during construction, use clean outside air for combustion and ventilation. Compounds of chlorine and fluorine, when burned with combustion air, form acids which will cause corrosion of heat exchangers. Some of these compounds are found in paneling, dry wall adhesives, paints, thinners, masonry cleaning materials, and many other solvents commonly used in the construction process.

Excessive exposure to contaminated combustion air will result in safety and performance related problems.

Provide ample space for servicing and cleaning. Always comply with minimum fire protection clearances shown on unit’s clearance to combustibles label. (See Fig. 3.) Locate furnace where available electric power and gas supplies meet specifications on furnace rating plate.

FRONT

BACK

FRONT

B￿

A￿

C￿

K

A93043

Fig. 14—Prohibit Installation on Back

32oF MINIMUM INSTALLED AMBIENT OR FREEZE PROTECTION REQUIRED

A93058

Fig. 15—Freeze Protection

WARNING: Do not install furnace on its back. (See Fig. 14.) Safety control operation will be adversely affected. Never connect return-air ducts to back of furnace. Failure to follow this warning could result in fire, personal injury, or death.

CAUTION: If this furnace is installed in an unconditioned space where the ambient temperatures may be 32°F or lower, freeze protection measures must be taken. (See Fig. 15.)

PROCEDURE 2—LOW-FIRE ONLY INSTALLATION

This 355MAV furnace can be installed to operate in the low-fire only heating mode when sized using the low-fire heating capacity. This is accomplished by placing setup switch SW-2 in the ON position to provide only low-fire-heat operation. See Fig. 31 and Table 11. With this setup, high-fire operation will not occur.

When the model no. on the furnace rating plate is followed by an asterisk (*), the furnace has an alternate low-fire only efficiency rating as listed in the GAMA and CEC directories. This alternate rating will be listed as the furnace model number followed by an (-L) suffix.

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Contents Installation, Start-up, and Operating Instructions Table of ContentsLocation Introduction Safety ConsiderationsCodes and Standards Dimensions Unit SizeInstaller Packet Includes Clearances to CombustiblesElectrostatic Discharge ESD Precaution Procedure Applications Procedure 1-GENERALCondensate Trap Location Factory-Shipped Orientation Procedure 2-UPFLOW ApplicationsCondensate Trap Tubing 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 InstallationProcedure 4-HAZARDOUS Locations Procedure 3-FURNACE Location Relative to CoolingequipmentInstallation Procedure 1-LEVELING Legs if Desired Opening Dimensions Furnace Plenum Opening Floor OpeningFloor and Plenum Opening Dimensions Procedure 3-INSTALLATION in Horizontal ApplicationsProcedure 4-AIR Ducts General RequirementsSupply Air Connections Ductwork Acoustical TreatmentReturn Air Connections Procedure 5-FILTER Arrangement Procedure 6-BOTTOM Closure PanelProcedure 7-GAS Piping Filter InformationBottom Filter Arrangement Nominal Length of Pipe FT Maximum Capacity of PipeInternal Pipe Diameter Size 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 Multiventing and Vent Terminations Procedure 10-CONDENSATE DrainGeneral 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 ModeSTART-UP Procedures Procedure 1-GENERAL Procedure 11-ZONE ModeProcedure 2-SELECT Setup Switch Positions Air Conditioning A/C Airflow Switch Position Setup Switches SWAIR Setup Allowable Furnace Model Setup Switch Position TonsProcedure 4-PURGE GAS Lines Procedure 3-PRIME Condensate Trap with WaterProcedure 5-ADJUSTMENTS Filling Condensate Trap Heat Value Altitude AVG GAS Specific Gravity of Natural GASAltitude 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
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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.
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