Carrier 59TP6B - Example of Variable Speed Furnace Control

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41

A190044

Fig. 39 -- Example of Variable Speed Furnace Control

Table of Contents

Table of Contents1
Sections1
Required Notice for Massachusetts Installations2
Important2
Safety Considerations3
- Fire Hazard3
- Furnace Reliability Hazard3
- Introduction4
- Freeze Protection and Return Air Temperature4
- Loose Parts Bag4
Minimum Clearances to Combustible Materials4
- General Installation5
- Safety5
Codes and Standards5
Electrostatic Discharge (Esd) Precautions5
- Location6
- General6
- Multipoise Orientations7
- Installation in a Garage7
- Prohibited Installations7
- Location Relative to Cooling Equipment7
- Dimensional Drawing8
- Ventilated Combustion Air Applications9
- Outdoor Combustion Air Method9
- Applications9
Air for Combustion and Ventilation9
- Indoor Combustion Aire NFPA & AGA10
- Standard Method10
- Combination of Indoor and Outdoor Air10
Minimum Free Area Required11
Minimum Space Volumes11
- Condensate Trap - - Upflow Orientation12
- Condensate Trap - - Downflow Orientation12
- Condensate Trap - - Horizontal Orientation12
Condensate Trap12
- Downflow Trap Configuration13
- Unconverted Factory Configuration14
- Horizontal Right Trap Configuration14
- Unconverted Factory Trap Configuration15
- Horizontal Left Trap Configuration15
- Condensate Drain Connection16
- Upflow/Downflow Orientation16
- For Right Side Condensate Drain16
- For Left Side Condensate Drain Connection17
- Tip from Contractors17
- Horizontal Orientation17
- Knockout Removal17
- Example of Field Drain Attachment (Not Allowed)18
- Example of Field Drain Attachment19
- Modify Rubber Drain Elbow20
- Formed Rubber Drain Grommet20
- Drain Trap Connection and Routing20
- Installation20
- Return Air Connections21
- Downflow Installation21
- Supply Air Connections21
- Side Return Air Inlet21
- Horizontal Installation22
- Filter Arrangement22
- Bottom Return Air Inlet22
- Suspended Furnace Support22
- Filter and Return Duct Sizing23
- Air Filter Located in Filter Cabinet24
- Air Filter Selection and Duct Sizing24
- Filter Media Pressure Drop (Clean) Versus Face Velocity24
- Optional Media Filter25
- Installation on Combustible Flooring26
- Opening Dimensions26
- Duct Flanges27
- Removing Bottom Closure Panel (2 Screws)27
- Removing Bottom Closure Panel (4 Screws)27
- Upflow27
- Furnace Pitch Requirements28
- Upflow Return Air Configurations and Restrictions28
- Downflow Return Air Configurations and Restrictions28
- Horizontal Return Air Configurations and Restrictions28
- Rollout Protection Required29
- Suspended Furnace Installation29
- Working Platform for Attic Installation29
- General Requirements30
- Return Duct Sizing30
- Ductwork Acoustical Treatment30
Air Ducts30
– Maximum Capacity of Pipe35
Gas Piping35
- Gas Pipe Grommet36
- Typical Gas Pipe Arrangement36
- Gas Valve with Tower Pressure Ports36
- Gas Entry36
- V Wiring37
Electrical Connections37
- Box Installation38
- External Electrical Box on Furnace Casing38
- Installing J- -Box (When Used)38
- Thermostats39
- Accessories39
- Alternate Power Supplies39
- 24-V Wiring39
- Typical Two- -Stage Field Wiring Diagram40
Electrical Data40
- Example of Variable Speed Furnace Control41
- Modulating and 2-Stage Furnace with Two-Speed Air Conditioner42
- Modulating and 2-Stage Furnace with Two-Speed Heat Pump42
- Modulating and 2-Stage Furnace with Single-Speed Heat Pump42
- Modulating and 2-Stage Furnace with Single-Speed Air Conditioner42
- Notes for Thermostat Wiring Diagrams43
- Venting43
- Special Venting Requirements for Installations in Canada43
- Venting Systems45
- Carbon Monoxide Poisoning Hazard45
Installation45
- Ventilated Combustion Air Systems46
- Non-Direct Vent (1-Pipe) System46
- Locating the Vent Termination46
Vent Termination Kit for Direct Vent (2- -Pipe) Systems46
- Size the Vent and Combustion Air Pipes47
- Non-Direct Vent / 1-Pipe System47
- Ventilated Combustion Air47
- Recommended Combustion Air Inlet Moisture Trap48
Maximum Equivalent Vent Length48
- Combustion Air and Vent Piping Insulation Guidelines49
- Configure the Furnace49
- Near Furnace Vent Connections49
- Install the Vent and Combustion Air Pipes49
- Upflow Left Configuration50
- Downflow Left Configuration50
- Upflow Right Configuration50
- Downflow Right Configuration50
- Horizontal Right ---Left Vent Configuration51
- Horizontal Right ---Vertical Vent Configuration51
- Horizonal Left ---Left Vent Configuration51
- Horizontal Left ---Vertical Vent Configuration51
- Notes for Venting Options52
- Vent Coupling and Adapter with Gaskets52
- Vent Coupling and Adapter52
- Inducer Vent Elbow52
- Hanger Spacing53
- Optional Vent Pipe Flush with Adaptor54
- Vent Pipe Flush with Adapter54
- Vent Pipe Flush Showing Coupling54
- Inducer Outlet Restrictor55
- 2-Pipe and 1-Pipe Vent Termination55
- Roof Terminations55
- Installing the Vent Termination55
- Elbow Configurations57
- Vent Terminal Configurations57
Deductions from Maximum Equivalent Vent Length57
- Venting System Length Calculations58
- Inside Corner Terminations59
- Alberta and Saskatchewan Vent Termination63
- Vent Terminations for Ventilated Combustion Air64
- Sample Inlet Air Pipe Connection for Polypropylene Venting Systems65
- Air Conditioning (A/C) Setup Switches (SW2- - 6, 7, 8)66
- Continuous Fan (CF) Setup Switches (SW2- - 3, 4, 5)66
- Setup Switches (SW2- - 1, 2)66
Start- -Up, Adjustment, and Safety Check66
- Adjustments67
- Orifice Hole67
- Purge Gas Lines67
- Priming Condensate Trap67
- Adjust Manifold Pressure68
- Check Inlet Gas Pressure68
- Adjust Temperature Rise69
- Clocking the Meter69
- To Lock the Furnace in Low Heat70
- If the Temperature Rise Is too High or too Low in Low Heat70
- To Lock the Furnace in High Heat70
- If the Temperature Rise Is too High or too Low in High Heat70
- Checklist71
- Check Safety Controls71
- Service72
- Component Test72
- Dip Switch Configuration73
- Furnace Setup Switch Description73
- Airflow Selection73
- – Altitude Derate Multiplier for USA74
- – Blower off Delay Setup Switch74
- – Gas Rate (CU Ft./Hr)74
- Orifice Size and Manifold Pressure (In. W.C.) for Gas Input Rate75
- Troubleshooting77
- Retrieving Stored Status Codes77
- Electrical Controls and Wiring77
Service and Maintenance Procedures77
- Care and Maintenance78
- Component Self- - Test78
- Cleaning And/Or Replacing Air Filter79
- Blower Motor and Wheel Maintenance79
- Blower Assembly80
- Cleaning Burners and Flame Sensor81
- To Reinstall Burner Assembly81
- Flushing Collector Box and Drainage System82
- Servicing Hot Surface Igniter82
- Igniter Position - - Top View82
- Igniter Position - - Side View82
- Cleaning Heat Exchanger Cell83
- Cleaning Heat Exchangers83
- Checking Heat Pad Operation (if Applicable)83
- Primary Heat Exchangers83
- Winterization84
- Secondary Heat Exchangers84
- Wiring Diagrams84
Sequence of Operation85
- Troubleshooting Guide88
- Connection Diagram90
- Schematic Diagram90
- Wiring Diagram90
- Parts Replacement Information Guide91
- Model Nomenclature91

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