Bryant 340MAV instruction manual Wiring, III Accessories

Page 20

Field-supplied wiring shall conform with the limitations of 63°F (35°C) rise.

WARNING: Blower access panel door switch opens 115-v power to control center. No component operation can occur. Do not bypass or close switch with panel removed. Failure to follow this warning could result in personal injury or death.

→CAUTION: Furnace control must be grounded for

proper operation or control will lock out. Control is grounded through green/yellow wire routed to gas valve and burner box screw. Failure to follow this caution will result in intermittent unit operation.

I. 115-V WIRING

Before proceeding with electrical connections, make certain that voltage, frequency, and phase correspond to that specified on unit rating plate. Also, check to be sure that service provided by power supply is sufficient to handle load imposed by this equipment. Refer to rating plate or Table 4 for equipment electrical specifi- cations.

Make all electrical connections in accordance with National Electrical Code (NEC) ANSI/NFPA 70-2002 and any local codes or ordinances that might apply. For Canadian installations, all electrical connections must be made in accordance with Canadian Electrical Code CSA C22.1 or authorities having jurisdiction.

ALTERNATE

 

FIELD

FACTORY

LOCATION

 

INSTALLED

 

LOCATION

A00212

Fig. 29—Relocating J-Box

WARNING: The cabinet MUST have an uninterrupted or unbroken ground according to NEC ANSI/NFPA 70-2002 and Canadian Electrical Code CSA C22.1 or local codes to minimize personal injury if an electrical fault should occur. This may consist of electrical wire or conduit approved for electrical ground when installed in accordance with existing electrical codes. Do not use gas piping as an electrical ground. Failure to follow this warning could result in electrical shock, fire, or death.

Use a separate, fused branch electrical circuit containing a properly

 

J-BOX RELOCATION

 

 

sized fuse or circuit breaker for this furnace. See Table 4 for wire

 

 

 

1. Remove 2 screws holding auxiliary J-box. (See Fig. 29.)

size

and fuse specifications. A disconnecting means must be

 

 

 

 

 

 

2. Rotate J-box 180° and attach box to right side, using holes

located within sight from and readily accessible to furnace.

 

 

 

 

 

 

 

provided.

 

 

→

 

 

 

 

 

 

 

 

 

 

CAUTION: Do not connect aluminum wire between

 

→

 

 

 

 

 

 

 

 

 

 

 

CAUTION: If manual

disconnect switch is to be

 

 

 

disconnect switch and furnace. Use only copper wire.

 

 

 

 

 

 

 

 

 

 

 

 

mounted on furnace, select a location where a drill or

 

 

 

(See Fig. 28.) Failure to follow this caution will result in

 

 

 

 

 

 

 

 

 

 

 

 

 

fastener will not contact

electrical or gas components.

 

 

 

intermittent unit operation or performance satisfaction.

 

 

 

 

 

 

 

 

 

 

 

 

 

Failure to follow this caution will result in intermittent

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

unit operation or performance satisfaction.

 

NOTE: Proper polarity must be maintained for 115-v wiring. If

 

 

 

 

 

 

 

 

 

 

 

 

 

 

polarity is incorrect, control center LED status indicator light will

 

II.

24-V WIRING

 

 

flash rapidly and furnace will NOT operate.

 

 

 

 

Make field 24-v thermostat connections at 24-v terminal block on

 

 

 

 

 

 

 

 

 

 

furnace control. For proper cooling operation, Y wire from

 

 

 

 

 

thermostat MUST be connected to Y terminal on furnace control

 

 

 

 

 

center, as shown in Fig. 27. The 24-v terminal block is marked for

 

 

 

 

 

easy connection of field wiring. (See Fig. 30.) The 24-v circuit

 

 

 

 

 

contains a 3-amp, automotive-type fuse located on furnace control.

 

 

 

 

 

(See Fig. 31.) Any electrical shorts of 24-v wiring during instal-

 

 

 

 

 

lation, service, or maintenance may cause fuse to blow. If fuse

 

 

 

 

 

replacement is required, use only a fuse of identical size (3 amp)

 

 

 

 

 

and type. The control will flash code 24 when fuse needs

 

 

 

 

 

replacement.

 

 

 

 

ELECTRIC

 

NOTE: Use AWG No. 18 color-coded copper thermostat wire for

 

 

DISCONNECT

 

lengths up to 100 ft. For wire lengths over 100 ft, use AWG No.

 

 

SWITCH

 

 

 

COPPER

 

16 wire.

 

 

 

 

WIRE ONLY

 

III.

ACCESSORIES

 

 

 

 

 

 

 

 

 

 

 

ALUMINUM

 

 

 

1. Electronic Air Cleaner (EAC)

 

 

 

 

 

 

Two quick-connect terminals marked EAC-1 and EAC-2

 

 

WIRE

 

 

 

 

 

 

 

 

 

 

 

 

are provided for EAC connection. (See Fig. 31.) These

 

 

A00290

 

 

 

 

terminals are energized with 115v (1.0-amp maximum)

 

 

Fig. 26—Bottom Filter Arrangement

 

 

 

 

during blower motor operation.

 

 

 

 

—20—

 

 

 

 

 

 

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Contents Electrostatic Discharge ESD Precautions Safety ConsiderationsMultipoise Orientations Dimensions Unit SizeSafety II. General InstallationVI. GAS Piping and GAS Pipe Pressure Testing Codes and StandardsElectrostatic Discharge ESD Precautions VII. Electrical ConnectionsIntroduction ApplicationsGeneral II. Upflow ApplicationsPressure Switch Tubing Condensate Trap Tubing Factory-Shipped OrientationCondensate Trap Location Alternate Upflow 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 EquipmentII. Installation in Upflow or Downflow Applications Installation Leveling Legs if DesiredIII. Installation in Horizontal Applications III. Hazardous LocationsWidth Opening DimensionsFurnace Plenum Opening Floor Opening Casing Duct Flanges II. Ductwork Acoustical TreatmentIII. Supply AIR Connections IV. Return AIR ConnectionsFilter Arrangement Filter InformationVI. Bottom Closure Panel VII. GAS PipingMaximum Capacity of Pipe Casings onlyFire or Explosion Hazard Electrical ConnectionsWiring III AccessoriesPCB Electrical Data Direct VentingRemoval of Existing Furnaces from Common Vent Systems 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 Heating Mode II. Cooling ModeIII. Continuous Blower Mode IV. Heat Pump ModeSTART-UP Procedures General IV. AdjustmentsComponent Test 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 Example 100,000 Btuh Input Furnace Installed AT 4300 FT Altitude Derate MultiplierUnited States CanadaBlower OFF Delay Setup Position Check Safety ControlsGAS Rate CU FT/HR Speed SelectorCheck Primary Limit Control II. Check Pressure SwitchChecklist CHECKLIST-INSTALLATION CHECKLIST-START-UPLoad Calculation 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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