Carrier 59SC5B - Wiring Diagram

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87

3344442--2 Rev. B

Fig. 70 -- Wiring Diagram

Table of Contents

Table of Contents1
Safety Precautions3
Safety Considerations3
- Freeze Protection and Return Air Temperature4
- Introduction4
Loose Parts Bag4
Minimum Clearances to Combustible Materials4
Accessories5
Codes and Standards5
Electrostatic Discharge (Esd) Precautions5
- Dimensional Drawing6
- Location7
- General7
- Prohibited Installations8
- Location Relative to Cooling Equipment8
- Installation in a Garage8
- Multipoise Orientations8
- Ventilated Combustion Air Applications9
- Outdoor Combustion Air Method9
Air for Combustion and Ventilation9
- Indoor Combustion Aire NFPA and AGA10
- Standard Method10
- Combination of Indoor and Outdoor Air10
- Air for Combustion, Ventilation, and Dilution from Indoors11
- Air for Combustion, Ventilation, and Dilution for Outdoors11
- Min Free Area Required for each Combustion Air Opening11
- Min Space Volumes for 100% Combustion, Ventilation and Dilution Air11
Minimum Free Area Required11
Minimum Space Volumes11
- Upflow Orientation12
- Downflow Orientation12
- Horizontal Orientation12
Condensate Trap12
- Upflow Trap Configuration13
- Downflow Trap Configuration14
- Horizontal Right Trap Configuration15
- Horizontal Left Configuration16
- For Left Side Condensate Drain Connection17
- Condensate Drain Connection17
- For Right Side Condensate Drain17
- Upflow/Downflow Orientation17
- Modify Rubber Drain Elbow18
- Formed Rubber Drain Grommet18
- Drain Trap Connection and Routing19
- Knockout Removal19
- Example of Field Drain Attachment20
- Upflow Installation21
- Supply Air Connections21
- Leveling Legs22
- Bottom Return Air Inlet22
- Side Return Air Inlet22
- Downflow Installation22
- Horizontal Installation23
- Return Air Connections23
- Platform Furnace Support23
- Suspended Furnace Support23
- Upflow Return Air Configurations and Restrictions24
- Downflow Return Air Configurations and Restrictions24
- Horizontal Return Air Configurations and Restrictions24
- Working Platform for Attic Installation25
- Suspended Furnace Installation25
- Removing Bottom Closure Panel26
- Filter Arrangement26
- Filter and Return Duct Sizing27
- Filter Media Pressure Drop (Clean) Versus Airflow27
- Filter Media Pressure Drop Versus Face Velocity28
- Air Filter Selection and Duct Sizing28
- Air Filter Located in Filter Cabinet28
- Media Filter29
- Installation on Combustible Flooring30
- Opening Dimensions30
Air Ducts30
- Ductwork Acoustical Treatment31
- Return Duct Sizing31
- General Requirements31
- Air Delivery32
- Gas Pipe Grommet33
Gas Piping33
- Gas Entry34
- Alternate Gas and Electric Entry34
Electrical Connections34
Maximum Capacity of Pipe34
- Installing J-Box35
- External Electrical Box on Furnace Casing35
- J-Box Installation35
- 115 V Wiring35
- Top Panel -Mounted External Electrical Box36
- Power Cord Installation in Furnace J- Box36
- BX Cable Installation in Furnace J- Box36
- Field-Supplied External Electrical Box on Furnace Casing36
- 24 -V Wiring37
- Alternate Power Supplies37
- Typical Single- Stage Wiring Diagram37
- Example of Single Stage Furnace Control38
Electrical Data38
- Thermostat Wiring Diagrams39
- Notes for Thermostat Wiring Diagrams39
- Special Venting Requirements for Installations in Canada39
- Venting39
- Venting Systems41
- Ventilated Combustion Air Systems41
- Non-Direct Vent System41
Vent Termination Kit for Direct Vent (2- -Pipe) System41
- Locating the Vent Termination42
- Ventilated Combustion Air42
- Size the Vent and Combustion Air Pipes43
- Non-Direct Vent / 1-Pipe System43
- Sample Inlet Air Pipe Connection for Polypropylene Venting Systems43
- Recommended Combustion Air Inlet Moisture Trap44
- Combustion Air and Vent Pipe Diameter Transition Location44
- Combustion Air and Vent Piping Insulation Guidelines45
- Configure the Furnace46
- Install the Vent and Combustion Air Pipes46
- Near Furnace Vent Connections46
- Installing the Vent Pipe Adapter and Combustion Air Pipe Adapter47
- Vent Coupling and Adapter with Gaskets47
- Inducer Vent Elbow48
- Hanger Spacing48
- Concentric Vent49
- Roof Terminations49
- Installing the Vent Termination49
- Optional Installation of the Vent Pipe49
- Sidewall Terminations Concentric Vent50
- Inducer Outlet Restrictor50
- Approved Combustion-Air and Vent Pipe, Fitting and Cement Materials51
- Maximum Allowable Exposed Vent Length in Unconditioned Space52
- Maximum Equivalent Vent Length53
- Deductions from Maximum Equivalent Vent Length53
- Venting System Length Calculations54
Maximum Equivalent Vent Length54
- Inside Corner Terminations55
- Downflow Configurations56
- Upflow Configurations56
- Horizontal Left57
- Horizontal Right57
- Notes for Venting Options58
- Optional Vent Pipe Flush with Adaptor58
- Combustion Air Pipe Attachment58
- Direct Vent Termination Clearance59
- Ventilated Combustion Air and Non-Direct Vent Termination Clearance60
- Combustion Air and Vent Pipe Termination for Direct Vent System61
- Vent Pipe Termination for Non-Direct and Ventilated Air System61
- Alberta and Saskatchewan Vent Termination62
- Vent Terminations for Ventilated Combustion Air63
- Prime Condensate Trap with Water64
Start- -Up, Adjustment, and Safety Check64
- Purge Gas Lines65
- Adjustments65
- Priming Condensate Trap65
- Orifice Hole65
- Orifice Size and Manifold Pressure for Gas Input Rate67
Orifice Size and Manifold Pressure69
- Check Inlet Gas Pressure70
- Gas Valves70
- Burner Flame71
- Adjust Temperature Rise71
- Adjust Manifold Pressure71
- Adjust Blower off Delay72
- Adjust Cooling Airflow72
- Adjust Thermostat Heat Anticipator72
- Blower off Delay Jumper Positions72
- Check Safety Controls73
- Altitude Derate Multiplier for U.S.A.73
- Service74
- Component Test74
Gas Rate75
- Retrieving Stored Fault Codes76
- Troubleshooting76
- Electrical Controls and Wiring76
Service and Maintenance Procedures76
- Component Self-Test77
- Checklist77
- Cleaning And/Or Replacing Air Filter78
- Blower Motor and Wheel Maintenance78
- Blower Assembly79
- Cleaning Burners and Flame Sensor80
- Burner Assembly80
- Igniter Position - Top View81
- Cleaning Condensate Drain and Trap81
- Flushing Collector Box and Drainage System81
- Servicing Hot Surface Igniter81
- Cleaning Heat Exchangers82
- To Re-Install Condensate Drain and Trap82
- Checking Heat Pad Operation82
- Cleaning Heat Exchanger Cell82
- Winterization83
- Secondary Heat Exchangers83
Sequence of Operation84
- Troubleshooting Guide85
- Wiring Diagram87
- Parts Replacement88

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