Bryant 926TB - Page 59

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59

A13078

Fig. 58 -- Alberta and Saskatchewan Vent Termination

Fig. 59 -- Vent Terminations for Ventilated Combustion Air

Table of Contents

Table of Contents1
Sections1
Important2
Furnace Reliability Hazard4
Fire Hazard4
Safety Considerations4
- Introduction5
- Freeze Protection and Return Air Temperature5
- Loose Parts Bag5
Minimum Clearances to Combustible Materials5
- General Installation6
- Combustion and Ventilation Air6
Codes and Standards6
Electrostatic Discharge (Esd) Precautions6
- Location7
- General7
- Multipoise Orientations8
- Location Relative to Cooling Equipment8
- Prohibited Installations8
- Installation in a Garage8
- Direct Vent (2- - Pipe) Applications9
- Ventilated Combustion Air Applications9
- Outdoor Combustion Air Method9
Air for Combustion and Ventilation9
- Combination of Indoor and Outdoor Air10
- Standard Method10
- Indoor Combustion Aire NFPA & AGA10
- EXAMPLES: Determining Free Area11
Minimum Free Area Required11
Minimum Space Volumes11
- Upflow Orientation12
- Downflow Orientation12
- To Relocate the Condensate Trap12
Condensate Trap12
- Horizontal Right Trap Configuration13
- Property Damage Hazard13
- Horizontal Left Configuration13
- Condensate Drain Connection13
- Upflow/Downflow Orientation14
- For Left Side Condensate Drain Connection14
- Knockout Removal14
- For Right Side Condensate Drain14
- Tip from Contractors15
- Horizontal Orientation15
- Modify Rubber Drain Elbow15
- Evaporator Coil16
- Example of Field Drain Attachment (Not Allowed)16
- Supply Air Connections17
- Example of Field Drain Attachment17
- Upflow Installation17
- Installation17
- Return Air Connections18
- Bottom Return Air Inlet18
- Side Return Air Inlet18
- Downflow Installation18
- Horizontal Installation19
- Platform Furnace Support19
- Suspended Furnace Support19
- Roll-Out Protection19
- Upflow Return Air Configurations and Restrictions20
- Rollout Protection Required21
- Suspended Furnace Installation21
- Working Platform for Attic Installation21
- Filter and Return Duct Sizing22
- Removing Bottom Closure Panel (2 Screws)22
- Filter Arrangement22
- Air Filter Located in Filter Cabinet24
- Optional Media Filter24
- Installation on Combustible Flooring25
- Opening Dimensions25
- General Requirements30
- Return Duct Sizing30
Air Ducts30
Gas Piping30
- Gas Valve with Tower Pressure Ports31
- Typical Gas Pipe Arrangement31
- – Maximum Capacity of Pipe31
- Alternate Gas and Electric Entry32
- Gas Entry32
- Gas Pipe Grommet32
Electrical Connections32
- 115-V Wiring33
- J-Box Installation33
- Installing J- -Box (When Used)33
- External Electrical Box on Furnace Casing34
- Power Cord Installation in Furnace J-Box34
- BX Cable Installation in Furnace J-Box34
- 24-V Wiring34
- Alternate Power Supplies35
- Thermostats35
Accessories35
Electrical Data35
- Typical Two- -Stage Field Wiring Diagram36
- Example of Variable Speed Furnace Control36
- Thermostat Wiring Diagrams37
- Notes for Thermostat Wiring Diagrams38
- Venting38
- Special Venting Requirements for Installations in Canada38
- Materials39
- Venting Systems40
Installation40
- Ventilated Combustion Air Systems41
- Locating the Vent Termination41
Vent Termination Kit for Direct Vent (2- -Pipe) Systems41
- Combustion Air and Vent Piping Insulation44
- Configure the Furnace44
- Carbon Monoxide Poisoning Hazard44
Maximum Equivalent Vent Length44
- Near Furnace Vent Connections45
- Install the Vent and Combustion Air Pipes45
- Combustion Air Pipe Attachment45
- Upflow Left Configuration45
- Downflow Vertical46
- Downflow Right Configuration46
- Upflow Vertical Vent46
- Upflow Right Configuration46
- Horizonal Left ---Left Vent Configuration47
- Horizontal Right ---Left Vent Configuration47
- Horizontal Left ---Right Vent Configuration47
- Horizontal Right ---Right Vent Configuration47
- Notes for Venting Options48
- Vent Coupling and Adapter48
- Inducer Vent Elbow48
- – Hanger Spacing49
- Vent Pipe Flush Showing Coupling50
- Vent Pipe Flush with Adapter50
- For Polypropylene Venting Systems50
- Installing the Vent Termination51
- Roof Terminations51
- 2-Pipe and 1-Pipe Vent Termination51
- Inducer Outlet Restrictor51
- Elbow Configurations53
- Vent Terminal Configurations53
Deductions from Maximum Equivalent Vent Length53
- Venting System Length Calculations54
- Inside Corner Terminations55
- Setup Switches60
- Prime Condensate Trap with Water60
- Continuous Fan (CF) Setup Switches60
Start- -Up, Adjustment, and Safety Check60
- Adjustments61
- Purge Gas Lines61
- Orifice Hole61
- Priming Condensate Trap61
- Adjust Manifold Pressure62
- Check Inlet Gas Pressure62
- Adjust Temperature Rise63
- Clocking the Meter63
- Burner Flame63
- To Lock the Furnace in High Heat64
- Adjust Blower off Delay (Heat Mode)64
- Adjust Thermostat Heat Anticipator64
- To Lock the Furnace in Low Heat64
- Check Safety Controls65
- Checklist65
- Service66
- LED Code66
- Status66
- Component Test66
- Dip Switch67
- Furnace Setup Switch Description67
- Airflow Selection67
- – Gas Rate (CU Ft./Hr)68
- – Blower off Delay Setup Switch68
- – Altitude Derate Multiplier for USA68
- Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate69
- Two-Stage Furnace69
Service and Maintenance Procedures70
- Electrical Controls and Wiring71
- Component Self- - Test71
- Troubleshooting71
- Retrieving Stored Status Codes71
- Care and Maintenance72
- Cleaning And/Or Replacing Air Filter72
- Blower Motor and Wheel Maintenance72
- Blower Assembly73
- Burner Assembly74
- Cleaning Burners and Flame Sensor74
- Servicing Hot Surface Igniter75
- Igniter Position - - Side View75
- Flushing Collector Box and Drainage System75
- To Reinstall Burner Assembly75
- Checking Heat Pad Operation76
- Cleaning Condensate Drain and Trap76
- Cleaning Heat Exchangers76
- Primary Heat Exchangers76
- Winterization77
- Cleaning Heat Exchanger Cell77
- Wiring Diagrams77
- Secondary Heat Exchangers77
- Inducer Prepurge Period78
Sequence of Operation78
- Cooling Mode79
- Single- -Speed Cooling79
- Dehumidification Mode80
- Heat Pump80
- Continuous Blower Mode80
- Troubleshooting Guide81
- Parts Replacement Information Guide84
- Casing Group84
- Model Nomenclature84

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