Bryant 340MAV III. Hazardous Locations, II. Installation in Upflow or Downflow Applications

Page 14

III. HAZARDOUS LOCATIONS

18-IN. MINIMUM

TO BURNERS

A93044

Fig. 16—Installation in a Garage

WARNING: When furnace is installed in a residential garage, it must be installed so that burners and ignition sources are located a minimum of 18 in. above floor. The furnace must be located or protected to avoid physical damage by vehicles. When furnace is installed in a public garage, airplane hangar, or other building having a hazardous atmosphere, unit must be installed in accor- dance with NFGC or NSCNGPIC. (See Fig. 16.)

2.For each hole, install nut on bolt and then install bolt and nut in hole. (Install flat washer if desired.)

3.Install another nut on other side of furnace base. (Install flat washer if desired.)

4.Adjust outside nut to provide desired height, and tighten inside nut to secure arrangement.

NOTE: Bottom closure must be used when leveling legs are used. See Bottom Closure Panel section.

II.INSTALLATION IN UPFLOW OR DOWNFLOW APPLICATIONS

NOTE: For downflow applications, this furnace is approved for use on combustible flooring when special base (available from manufacturer) Part No. KGASB0201ALL is used. Special base is not required when this furnace is installed on manufacturer’s Coil Assembly Part No. CD5 or CK5, or Coil Box Part No. KCAKC is used.

1.Determine application being installed from Table 1.

2.Construct hole in floor per dimensions specified in Table 1 and Fig. 18.

3.Construct plenum to dimensions specified in Table 1 and Fig. 18.

4.If downflow subbase (KGASB) is used, install as shown in Fig. 19.

If coil assembly CD5 or CK5 or Coil Box KCAKC is used, install as shown in Fig. 20.

NOTE: Remove furnace perforated, discharge duct flanges when they interfere with mating flanges on coil on downflow subbase. To remove furnace perforated, discharge duct flange, use wide duct pliers or duct flange tool to bend flange back and forth until it breaks off. Be careful of sharp edges. (See Fig. 21.)

 

 

INSTALLATION

 

 

WARNING: Do not bend duct flanges inward as shown

 

I. LEVELING LEGS (IF DESIRED)

 

 

in Fig. 21. This will affect airflow across heat exchangers

 

 

 

and may cause limit cycling or premature heat exchanger

 

When furnace is used in upflow position with side inlet(s), leveling

 

 

 

 

 

failure. Remove duct flange completely or bend it inward

 

legs may be desired. (See Fig. 17.) Install field-supplied,

 

 

 

 

 

a minimum of 210° as shown in Fig. 21.

 

corrosion-resistant 5/16-in. machine bolts and nuts.

 

 

 

 

 

 

 

 

 

 

 

5⁄16″

NOTE: For 140 size unit when installed in downflow orientation,

 

 

 

 

 

cut the white jumper wire off between terminals PL1-7 and PL1-9.

 

 

 

 

 

 

 

5⁄16″

Do not cut white jumper between terminals PL1-7 and PLI-11.

 

 

Refer to Fig. 30 for location of jumper. Cut jumper close to

 

 

 

 

 

 

 

 

 

 

connector and remove wire to avoid a short circuit.

1 3⁄4″

 

 

 

 

III. INSTALLATION IN HORIZONTAL APPLICATIONS

 

 

 

 

→

 

 

 

 

 

 

CAUTION: The entire length of furnace MUST be

 

 

 

 

 

 

 

 

supported when furnace is used in a horizontal position to

 

 

 

1 3⁄4″

 

 

 

 

 

 

 

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. Failure to follow this

 

5⁄16″

 

 

caution will result in intermittent unit operation or per-

 

 

 

formance satisfaction.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5⁄16″

These furnaces can be installed horizontally in either horizontal

 

 

 

 

 

 

left or right discharge position. In a crawlspace, furnace can either

 

 

1 3⁄4″

 

 

be hung from floor joist or installed on suitable blocks or pad.

 

 

 

 

 

1 3⁄4″

Furnace can be suspended from each corner by hanger bolts and

 

 

 

 

 

 

 

 

 

 

angle iron supports. (See Fig. 22.) Cut hanger bolts (4 each 3/8-in.

 

 

 

 

 

 

 

 

 

A89014

all-thread rod) to desired length. Use 1 X 3/8-in. flat washers,

 

Fig. 17—Leveling Legs

3/8-in. lockwashers, and 3/8-in. nuts on hanger rods as shown in

NOTE: The maximum length of bolt should not exceed 1-1/2 in.

Fig. 22. Dimples are provided for hole locations. (See Fig. 2.)

 

 

AIR DUCTS

1. Position furnace on its back. Locate and drill a 5/16-in.

I. GENERAL REQUIREMENTS

 

 

 

 

diameter hole in each bottom corner of furnace. (See Fig.

The duct system should be designed and sized according to

12.) Holes in bottom closure panel may be used as guide

accepted national standards such as those published by: Air

locations.

Conditioning Contractors Association (ACCA), Sheet Metal and

 

 

 

 

—14—

 

 

 

 

Page 13 Page 15
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Page 13 Page 15
Contents Electrostatic Discharge ESD Precautions Safety ConsiderationsMultipoise Orientations Dimensions Unit SizeVI. GAS Piping and GAS Pipe Pressure Testing SafetyII. General Installation Codes and StandardsElectrostatic Discharge ESD Precautions VII. Electrical ConnectionsGeneral IntroductionApplications II. Upflow ApplicationsCondensate Trap Location Alternate Upflow Orientation Pressure Switch TubingCondensate Trap Tubing Factory-Shipped Orientation Condensate Trap Tubing Alternate Upflow OrientationCondensate Trap Tubing III. Downflow ApplicationsCondensate Trap Location Horizontal Left Tube Configuration Horizontal Right SUPPLY-AIR Discharge Applications IV. Horizontal Left SUPPLY-AIR Discharge ApplicationsConstruct a Working Platform Attic Location and Working Platform Location Furnace Location for Proper Condensate Drainage II. Furnace Location Relative to Cooling EquipmentIII. Installation in Horizontal Applications II. Installation in Upflow or Downflow ApplicationsInstallation Leveling Legs if Desired III. Hazardous LocationsWidth Opening DimensionsFurnace Plenum Opening Floor Opening Casing Duct Flanges II. Ductwork Acoustical TreatmentFilter Arrangement III. Supply AIR ConnectionsIV. Return AIR Connections Filter InformationMaximum Capacity of Pipe VI. Bottom Closure PanelVII. GAS Piping Casings onlyFire or Explosion Hazard Electrical ConnectionsWiring III AccessoriesPCB Removal of Existing Furnaces from Common Vent Systems Electrical DataDirect Venting II. COMBUSTION-AIR and Vent PipingControl Center COMBUSTION-AIR and Vent Pipe Termination Clearances Clearance FTCombustion-Air and Vent Pipe Attachment Combustion-Air and Vent Pipe DiameterExample COMBUSTION-AIR Intake Housing Plug Fitting Short Vent 5 to 8 Ft SystemMaximum Allowable Pipe Length FT Altitude FT6001 to 7000‡ Air Intake Housing Plug Fitting Drain Two-Pipe Termination Kit Vent Extension PipeExtended Exposed Sidewall Pipes Concentric Vent/Air Termination Kit IV. Multiventing and Vent TerminationsRoof Termination Preferred Sidewall Termination of 12 in. or Less III. Condensate Drain Protection Condensate Drain GeneralII. Application III. Continuous Blower Mode Heating ModeII. Cooling Mode IV. Heat Pump ModeComponent Test START-UP Procedures GeneralIV. Adjustments II. Prime Condensate Trap with WaterInducer Housing Drain Cap BTU/CU FT Orifice Manifold 625 650 Only 7001 675 725 8000 775 750 15% 825 2001to 725 750 Only 4001 775 800 825 5000 875 850 900 925 United States Example 100,000 Btuh Input Furnace Installed AT 4300 FTAltitude Derate Multiplier CanadaGAS Rate CU FT/HR Blower OFF Delay Setup PositionCheck Safety Controls Speed SelectorCheck Primary Limit Control II. Check Pressure SwitchChecklist Load Calculation CHECKLIST-INSTALLATIONCHECKLIST-START-UP Combustion AIR Vent Piping
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340MAV specifications

The Bryant 340MAV is a standout model in the Bryant lineup, designed to provide exceptional comfort, efficiency, and performance for residential heating and cooling needs. This unit offers a perfect blend of innovative technology and user-friendly features, making it an ideal choice for homeowners seeking reliability and quality.

One of the defining characteristics of the Bryant 340MAV is its impressive efficiency rating. With a SEER (Seasonal Energy Efficiency Ratio) of up to 18, this model ensures that homeowners can enjoy effective cooling during the summer months while minimizing energy consumption. Similarly, the heating efficiency is notable, with a high AFUE (Annual Fuel Utilization Efficiency) rating. This makes the 340MAV an environmentally friendly option that also promotes cost savings on energy bills.

The 340MAV incorporates advanced technologies that enhance its performance. One such technology is the variable-speed compressor, which allows the system to adjust its output based on the demands of the home. This means that the unit operates more quietly and reduces energy usage by matching the cooling or heating output required. Additionally, the two-stage heating capability provides more consistent temperatures and improved comfort throughout the space.

Operating noise is a crucial factor in residential HVAC systems, and the Bryant 340MAV is designed with this in mind. Engineered for quiet operation, the unit features a sound-dampening design, including an insulated cabinet and a specially designed compressor that minimizes noise levels. Homeowners can enjoy a comfortable indoor climate without the disruptive racket often associated with traditional systems.

Furthermore, the Bryant 340MAV is equipped with a durable all-aluminum coil, which improves heat transfer efficiency while also being resistant to corrosion. This characteristic contributes to the longevity of the unit, ensuring that it can withstand various environmental factors without compromising performance.

Another key feature is the advanced control options that the Bryant 340MAV offers. Integration with smart thermostats allows homeowners to monitor and adjust their HVAC system remotely, ensuring optimal comfort at all times. Additionally, the system is compatible with Bryant's Perfect Air™ filtration system, enhancing indoor air quality by reducing pollutants and allergens.

In summary, the Bryant 340MAV is a high-efficiency heating and cooling solution that brings together cutting-edge technology, quiet operation, and user-friendly features. With its focus on comfort and energy savings, it stands out as a prime choice for homeowners looking to invest in a reliable HVAC system.
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