Bryant 310AAV instruction manual Check Safety Controls, Checklist

Page 37

Step 4 —Check Safety Controls

The flame sensor, gas valve, and pressure switch were all checked in the Start-up procedure section as part of normal operation.

1.Check Main Limit Switch(es)

This control shuts off combustion control system and en- ergizes air-circulating blower motor, if furnace overheats. By using this method to check limit control, it can be es- tablished that limit is functioning properly and will operate if there is a restricted duct system or motor failure. If limit control does not function during this test, cause must be determined and corrected.

a.Run furnace for at least 5 minutes.

b.Gradually block off return air with a piece of card- board or sheet metal until the limit trips.

c.Unblock return air to permit normal circulation.

d.Burners will re-light when furnace cools down.

2.Check draft safeguard switch.

The purpose of this control is to cause the safe shutdown of the furnace during certain blocked vent conditions.

a.Verify vent pipe is cool to the touch.

b.Disconnect power to furnace and remove vent con- nector from furnace vent elbow.

c.Restore power to furnace and set room thermostat above room temperature.

d.After normal start-up, allow furnace to operate for 2 minutes, then block vent elbow in furnace 80 percent of vent area with a piece of flat sheet metal.

e.Furnace should cycle off within 2 minutes. If gas does not shut off within 2 minutes, determine reason draft safeguard switch did not function properly and correct condition.

f.Remove blockage from furnace vent elbow.

g.Switch will auto-reset when it cools.

h.Re-install vent connector.

NOTE: Should switch remain open longer than 3 minutes, furnace control board will lockout the furnace for 3 hrs. To reset furnace control board, turn thermostat below room temperature or from HEAT to OFF and turn 115v power OFF, then back ON.

3.Check Pressure Switch This control proves operation of the draft inducer blower.

a.Turn off 115-v power to furnace.

b.Disconnect inducer motor lead wires from wire har- ness.

c.Turn on 115-v power to furnace.

d.Set thermostat to “call for heat” and wait 1 minute. When pressure switch is functioning properly, hot sur- face igniter should NOT glow and control diagnostic light flashes a status code 32. If hot surface igniter glows when inducer motor is disconnected, shut down furnace immediately.

e.Determine reason pressure switch did not function properly and correct condition.

f.Turn off 115-v power to furnace.

g.Reconnect inducer motor wires, replace outer door, and turn on 115-v power.

h.Blower will run for 90 sec before beginning the call for heat again.

i.Furnace should ignite normally.

Step 5 —Checklist

1.Put away tools and instruments. Clean up debris.

2.Verify that blower OFF-DELAY time is selected as de- sired.

3.Verify that blower and burner access doors are properly in- stalled.

4.Cycle test furnace with room thermostat.

5.Check operation of accessories per manufacturer’s instruc- tions.

6.Review User’s Guide with owner.

7.Attach literature packet to furnace.

310AAV

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Contents 310AAV/JAV Furnace Reliability Hazard Safety ConsiderationsCUT Hazard 20/060155 Inlet Width SizeIntroduction SafetyCodes and Standards Location Electrostatic Discharge ESD Precautions ProcedureFire and Explosion Hazard Multipoise OrientationsPersonal Injury AND/OR Property Damage Hazard AIR for Combustion VentilationFire Hazard Location Relative to Cooling EquipmentOutdoor Combustion Air Method Carbon Monoxide Poisoning HazardOther than FAN-ASSISTED Total Upflow Installation InstallationBottom Return Air Inlet Side Return Air InletLeveling Legs Leveling Legs If Desired Downflow InstallationPlatform Furnace Support Suspended Furnace SupportRoll-Out Protection Filter Arrangement Carbon Monoxide and Poisoning HazardAIR Ducts Opening Dimensions In. mmGeneral Requirements Ductwork Acoustical Treatment Supply Air ConnectionsFurnace RETURN---AIR Speed Air Delivery CFM with FilterSize Inlet Furnace ⎯ Air Delivery CFM with FilterHorizontal Unit Suspension Typical Attic Installation Downflow Return Air Configurations and Restrictions GAS Piping Fire or Explosion Hazard Return Air ConnectionsMaximum Capacity of Pipe Furnace Overheat HazardElectrical Connections Electrical Shock Hazard Burner and ManifoldElectrical Shock and Fire Hazard WiringFurnace MAY not Operate BOX RelocationBX Cable Installation in Furnace J-BOX Power Cord Installation in Furnace J-BOXElectrical Data Furnace Control Venting AccessoriesGeneral Venting Requirements Masonry Chimney Requirements Chimney Inspection Chart Additional Venting Requirements Appliance Application RequirementsBurn Hazard Sidewall VentingVent Height Internal Area of ChimneyDiameter Height Orientation Input BTUH/HR Upflow Application-Vent Elbow UpDownflow Application-Vent Elbow Up then Left Horizontal Right Application-Vent Elbow Right Start-Up Procedures START-UP, ADJUSTMENT, and Safety CheckAdjustments GeneralNever Assume Orifice SIZE. Always Check and Verify Furnace Damage HazardFurnace Overheating Hazard Speed SelectionWiring Diagram Gas Control Valve Orifice Hole Checklist Check Safety ControlsFilter Size Information In. / mm Gas Rate cu ft./hrSeconds for Size of Test Dial Revolution BTU/CU FT Specific Gravity of Natural GAS Altitude RangeSpecific Gravity of Natural GAS Altitude Range Heat Value AT Altitude Altitude Specific Gravity of Natural GASIntroduction Service and Maintenance ProceduresCleaning AND/OR Replacing AIR Filter Care and MaintenanceCarbon Monoxide Poisoning and Fire Hazard Blower Motor and Wheel Electrical Shock Hazard Media cabinet filter proceduresUnit Damage Hazard Igniter Position-Side View Cleaning Heat ExchangerHeating Sequence of OperationTroubleshooting Wiring DiagramsCooling Mode Continuous Blower ModeTroubleshooting Guide Chimneyin KitAdapter VentBlocked usedswitch Description Part Number Accessory ListParts Replacement Information Guide
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310AAV specifications

The Bryant 310AAV and 310JAV are high-efficiency air conditioning and heating systems designed for residential and light commercial applications. These models embody Bryant's commitment to delivering reliable comfort solutions while prioritizing energy efficiency and performance.

One of the standout features of the Bryant 310AAV and 310JAV is their impressive Seasonal Energy Efficiency Ratio (SEER) ratings. The higher the SEER, the more efficient the unit is in using electricity to cool your space. The Bryant 310AAV boasts a SEER rating of up to 16, while the 310JAV offers a slightly lower rating. This efficiency translates into cost savings on monthly energy bills while ensuring indoor comfort throughout the year.

Both models utilize advanced technologies, including two-stage heating and cooling capabilities. This means that the systems can adjust their operation based on the heating or cooling needs of a space, providing optimal temperature control while reducing energy waste. The two-stage operation also contributes to quieter operation levels, making these units suitable for residential settings where noise is a concern.

The 310AAV and 310JAV are equipped with variable-speed compressors, which further enhance their efficiency and comfort levels. The variable-speed technology allows the system to operate at different speeds, ensuring consistent temperature management and reducing the frequency of on-and-off cycling. This leads to steadier indoor temperatures and improved humidity control.

In addition to their performance features, Bryant places a strong emphasis on durability and dependability. The units are constructed with high-quality materials that are designed to withstand various environmental conditions. Features such as a weather-resistant cabinet and an efficient coil design help protect the units from wear and tear, ensuring long-lasting performance.

The implementation of environmentally friendly refrigerant options is another characteristic that demonstrates Bryant's commitment to sustainability. Both the 310AAV and 310JAV utilize R-410A refrigerant, which has a lower environmental impact compared to older refrigerants, aligning with modern standards for eco-friendly HVAC systems.

Overall, the Bryant 310AAV and 310JAV represent a blend of efficiency, advanced technology, and durability. With their attractive SEER ratings, two-stage operation, variable-speed capabilities, and commitment to sustainability, these models stand out as excellent choices for homeowners and businesses looking to enhance their heating and cooling solutions while keeping energy consumption in check. Whether for residential comfort or light commercial use, these Bryant units promise reliability and performance for years to come.
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