Bryant 340MAV instruction manual START-UP Procedures General, II. Prime Condensate Trap with Water

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WARNING: Blower access panel door switch opens 115-v power to control center. No component operation can occur. Caution must be taken when manually closing this switch for service purposes. Failure to follow this warning could result in electrical shock, personal injury, or death.

4.BRIEFLY short (jumper) TEST, 1/4-in. quick-connect terminal on control center (adjacent to the LED diagnostic light) and the COM terminal on thermostat connection block. (See Fig. 25.)

NOTE: If TEST to COM terminals are jumpered longer than 2 sec, LED will flash rapidly, and retrieval request will be ignored.

5.When above items have been completed, the component test sequence will occur as described in the Component Test Sequence section above.

NOTE: Be sure to record the status code which is flashed 4 times at start of component test for further troubleshooting.

6.After component test is completed and furnace is operating properly, release blower access panel door switch, replace blower access panel, and replace main furnace door.

START-UP PROCEDURES

I.GENERAL

1.Furnace must have a 115-v power supply properly con- nected and grounded. Proper polarity must be maintained for correct operation.

NOTE: Proper polarity must be maintained for 115-v wiring. If polarity is incorrect, control center LED status light will flash rapidly and furnace will not operate.

2.Thermostat wire connections at terminals R, W, G, and Y must be made at 24-v terminal block on control center.

3.Natural gas service pressure must not exceed 0.5 psig (14-in. wc), but must be no less than 0.16 psig (4.5-in. wc).

4.Blower access panel must be in place to complete 24-v electrical circuit to furnace.

CAUTION: These furnaces are equipped with a manual reset limit switch in burner box. This switch will open if an overheat condition (rollout) occurs in burner enclo- sure. Correct inadequate combustion-air supply or im- proper venting condition and reset switch. DO NOT jumper this switch.

Before operating furnace, check each manual reset switch for continuity. If necessary, press button to reset switch.

II.PRIME CONDENSATE TRAP WITH WATER

CAUTION: Condensate trap must be PRIMED or proper draining may not occur. The condensate trap has 2 internal chambers which can ONLY be primed by pour- ing water into the inducer drain side of condensate trap.

1.Remove upper inducer housing drain connection cap. (See Fig. 42.)

2.Connect field-supplied 1/2-in. ID tube to upper inducer housing drain connection.

3.Insert field-supplied funnel into tube.

4.Pour 1 quart of water into funnel/tube. Water should run through inducer housing, overfill condensate trap, and flow into open field drain. (See Fig. 43.)

Ð33Ð

5.Remove funnel and tube from inducer housing and replace drain connection cap and clamp.

A94208

Fig. 42ÐInducer Housing Drain Tube

A94209

Fig. 43ÐFilling Condensate Trap

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Contents ÐMultipoise Orientations Ð1ÐDimensions Ð2ÐUnit Size Electrostatic Discharge ESD Precautions Safety ConsiderationsMinimum Inches Clearance to Combustible Construction → ÐClearances to CombustiblesApplications General IntroductionII. Upflow Applications Condensate Trap Location Factory-Shipped OrientationCondensate Trap Location Alternate Upflow Orientation Ð5ÐÐ6Ð Pressure Switch TubingIII Downflow Applications Condensate Trap Freeze ProtectionCondensate Trap Location Condensate Trap TubingÐ8Ð IV. Horizontal Left SUPPLY-AIR Discharge ApplicationsÐ9Ð Construct a Working PlatformHorizontal Right SUPPLY-AIR Discharge Applications ÐAttic Location and Working Platform Location → ÐHorizontal Right Tube ConfigurationIII. Hazardous Locations II. Furnace Location Relative to Cooling Equipment→ II. Installation in Upflow or Downflow Applications Installation Leveling Legs if DesiredÐopening Dimensions Furnace Plenum Opening Floor Opening CasingWidth ÐDuct Flanges III. Installation in Horizontal ApplicationsIV. Filter Arrangement Ðfilter InformationBottom Closure Panel VI. GAS Piping WiringÐmaximum Capacity of Pipe Electrical ConnectionsII -V Wiring → ÐHeating and Cooling Application Wiring DiagramÐWiring Diagram Ðelectrical Data III. AccessoriesAmps Gage AmpsRemoval of Existing Furnaces from Common Vent Systems Direct VentingII. COMBUSTION-AIR and Vent Piping GeneralCombustion-Air and Vent Pipe Diameter ExampleCombustion-Air and Vent Pipe Attachment ÐShort Vent 5 to 8 Ft System COMBUSTION-AIR Intake Housing Plug Fitting2001 to Ðmaximum Allowable Pipe Length FT4001 to 5000³ Ðmaximum Allowable Pipe Length FT8001 to 9000³ Vent Extension PipeTwo-Pipe Termination Kit Extended Exposed Sidewall PipesÐRoof Termination Preferred IV. Multiventing and Vent Terminations Concentric Vent/Air Termination KitCondensate Drain General II. ApplicationÐConcentric Vent and Combustion-Air Heating Mode Sequence of OperationIII. Condensate Drain Protection III. Continuous Blower Mode II. Cooling ModeIV. Heat Pump Mode Component TestII. Prime Condensate Trap with Water START-UP Procedures GeneralIV. Adjustments III. Purge GAS LinesSet Gas Input Rate BTU/CU FT Ð36Ð Ð37Ð Ð38Ð Ð39Ð United States Set Temperature RiseÐaltitude Derate Multiplier for U.S.A CanadaII. Check Pressure Switch Check Safety Controls Check Primary Limit ControlChecklist Ðspeed SelectorCHECKLISTÐSTART-UP ChecklistðinstallationLoad Calculation Combustion and Vent PipingÐ43Ð Service Training
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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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