Bryant 340MAV instruction manual Fire or Explosion Hazard, Electrical Connections

Page 19

GAS

SUPPLY

MANUAL

SHUTOFF

VALVE (REQUIRED)

SEDIMENT

TRAP

UNION

A93324

Fig. 26—Typical Gas Pipe Arrangement

→CAUTION: If a flexible connector is required or al- lowed by authority having jurisdiction, black iron pipe shall be installed at furnace gas valve and extend a minimum of 2 in. outside furnace casing. Failure to follow this caution will result in intermittent unit opera- tion or performance satisfaction.

If local codes allow the use of a flexible gas appliance connector, always use a new listed connector. Do not use a connector which has previously served another gas appliance.

WARNING:

FIRE OR EXPLOSION HAZARD

Failure to follow the safety warnings exactly could result in serious injury, death or property damage.

Never test for gas leaks with an open flame. Use a commercially available soap solution made specifically for the detection of leaks to check all connections. A fire or explosion may result causing property damege, per- sonal injury or loss of life.

An accessible manual shutoff valve MUST be installed external to furnace casing and within 6 ft of furnace. A 1/8-in. NPT plugged tapping, accessible for test gage connection, MUST be installed immediately upstream of gas supply connection to furnace and downstream of manual shutoff valve.

NOTE: The gas valve inlet pressure tap connection is suitable to use as test gauge connection providing test pressure DOES NOT exceed maximum 0.5 psig (14-in. wc) stated on gas valve. (See Fig. 50.)

Piping should be pressure and leak tested in accordance with NFGC in the United States or NSCNGPIC in Canada, local, and national plumbing and gas codes before the furnace has been connected. After all connections have been made, purge lines and check for leakage at furnace prior to operating furnace.

If pressure exceeds 0.5 psig (14-in. wc), gas supply pipe must be disconnected from furnace and capped before pressure test. If test pressure is equal to or less than 0.5 psig (14-in. wc), turn off electric shutoff switch located on furnace gas control valve and accessible manual shutoff valve before test.

The gas supply pressure shall be within the maximum and minimum inlet supply pressure marked on the rating plate with the furnace burners ON and OFF.

ELECTRICAL CONNECTIONS

See Fig. 27 for field wiring diagram showing typical field 115-v and 24-v wiring. Check all factory and field electrical connections for tightness.

FIELD 24-V WIRING

FIELD 115-, 208/230-, 460-V WIRING

FACTORY 24-V WIRING

FACTORY 115-V WIRING

 

 

 

NOTE 2

 

THERMOSTAT

 

 

 

FIVE WIRE

 

W C R

G Y

FIELD-SUPPLIED

 

 

 

TERMINALS

 

 

 

 

 

 

 

THREE-WIRE

 

 

 

 

DISCONNECT

 

HEATING-ONLY

 

 

 

 

208/230- OR

BLOWER DOOR SWITCH

 

 

 

 

 

 

 

 

460-V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

THREE

BLK

BLK

 

 

W

 

 

PHASE

 

 

 

 

 

 

 

 

 

 

 

WHT

WHT

 

C

R

 

 

 

 

O

 

 

 

 

 

 

 

N

 

 

 

208/230-V

 

GND

GND

T

 

 

 

SINGLE

115-V FIELD-

AUXILIARY

R

G

 

 

PHASE

O

 

 

 

 

 

SUPPLIED

J-BOX

L

COM

 

 

GND

DISCONNECT

 

 

NOTE 1

 

CONDENSING

 

 

 

 

Y

 

UNIT

 

 

 

 

 

 

 

 

 

 

 

24-V

 

TWO

 

 

 

TERMINAL

 

WIRE

 

 

 

 

BLOCK

 

 

 

 

 

FURNACE

NOTES: 1. Connect Y-terminal in furnace as shown for proper blower operation.

 

 

2.

Some thermostats require a "C" terminal connection as shown.

 

 

 

 

3. If any of the original wire, as supplied, must be replaced, use same type or equivalent wire.

A02174

Fig. 27—Typical Heating and Cooling Application Wiring Diagram

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Contents Safety Considerations Electrostatic Discharge ESD PrecautionsMultipoise Orientations Unit Size DimensionsCodes and Standards SafetyII. General Installation VI. GAS Piping and GAS Pipe Pressure TestingVII. Electrical Connections Electrostatic Discharge ESD PrecautionsII. Upflow Applications IntroductionApplications GeneralCondensate Trap Tubing Alternate Upflow Orientation Pressure Switch TubingCondensate Trap Tubing Factory-Shipped Orientation Condensate Trap Location Alternate Upflow OrientationCondensate Trap Location III. Downflow ApplicationsCondensate Trap Tubing Horizontal Left Tube Configuration Construct a Working Platform IV. Horizontal Left SUPPLY-AIR Discharge ApplicationsHorizontal Right SUPPLY-AIR Discharge Applications Attic Location and Working Platform Location II. Furnace Location Relative to Cooling Equipment Furnace Location for Proper Condensate DrainageIII. Hazardous Locations II. Installation in Upflow or Downflow ApplicationsInstallation Leveling Legs if Desired III. Installation in Horizontal ApplicationsFurnace Plenum Opening Floor Opening Casing Opening DimensionsWidth II. Ductwork Acoustical Treatment Duct FlangesFilter Information III. Supply AIR ConnectionsIV. Return AIR Connections Filter ArrangementCasings only VI. Bottom Closure PanelVII. GAS Piping Maximum Capacity of PipeElectrical Connections Fire or Explosion HazardIII Accessories WiringPCB II. COMBUSTION-AIR and Vent Piping Electrical DataDirect Venting Removal of Existing Furnaces from Common Vent SystemsControl Center Clearance FT COMBUSTION-AIR and Vent Pipe Termination ClearancesExample Combustion-Air and Vent Pipe DiameterCombustion-Air and Vent Pipe Attachment Short Vent 5 to 8 Ft System COMBUSTION-AIR Intake Housing Plug FittingAltitude FT Maximum Allowable Pipe Length FT6001 to 7000‡ Air Intake Housing Plug Fitting Drain Extended Exposed Sidewall Pipes Vent Extension PipeTwo-Pipe Termination Kit IV. Multiventing and Vent Terminations Concentric Vent/Air Termination KitRoof Termination Preferred Sidewall Termination of 12 in. or Less II. Application Condensate Drain GeneralIII. Condensate Drain Protection IV. Heat Pump Mode Heating ModeII. Cooling Mode III. Continuous Blower ModeII. Prime Condensate Trap with Water START-UP Procedures GeneralIV. Adjustments Component TestInducer 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 Canada Example 100,000 Btuh Input Furnace Installed AT 4300 FTAltitude Derate Multiplier United StatesSpeed Selector Blower OFF Delay Setup PositionCheck Safety Controls GAS Rate CU FT/HRChecklist II. Check Pressure SwitchCheck Primary Limit Control Combustion AIR Vent Piping CHECKLIST-INSTALLATIONCHECKLIST-START-UP Load Calculation
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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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