Johnson Controls TG9S*MP Combustion AIR and Vent Piping Assembly, Combustion AIR / Venting

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364861-UIM-B-0708

TABLE 9: Equivalent Length of Fittings

Fitting

Equivalent Length

 

 

2" 90º sweep elbow

5 feet of 2" pipe

2" 45º sweep elbow

2-1/2 feet of 2" pipe

2" 90º standard elbow

10 feet of 2" pipe

2" 45º standard elbow

5 feet of 2" pipe

3" 90º sweep elbow

5 feet of 3" pipe

3" 45º sweep elbow

2-1/2 feet of 3" pipe

3" 90º standard elbow

10 feet of 3" pipe

3" 45º standard elbow

5 feet of 3" pipe

2" corrugated connector

10 feet of 2" pipe

3" corrugated connector

10 feet of 3" pipe

Example:

An 80,000 BTUH furnace requires 32 feet of pipe and four 90º elbows. Using 2" pipe and standard elbows, the total equivalent length will be:

32 feet of 2" pipe =

32 equivalent feet

4 - 90º standard 2" elbows = (4x10) =

40 equivalent feet

Total =

72 equivalent feet of 2" pipe

This exceeds the 65 foot maximum equivalent length of 2" pipe allowed for that model and is thus not acceptable.

By using sweep elbows, the total equivalent length will be:

32 feet of 2" pipe =

32 equivalent feet

4 - 90º standard 2" elbows = (4x5) =

20 equivalent feet

Total =

52 equivalent feet of 2" pipe

This is less than the 65 foot maximum equivalent length of 2" pipe allowed for that model and is thus acceptable.

Alternatively, using 3" pipe and standard elbows, the total equivalent length will be:

32 feet of 3" pipe =

32 equivalent feet

4 - 90º standard 2" elbows = (4x5) =

40 equivalent feet

Total =

72 equivalent feet of 3" pipe

This is less than the 90 foot maximum equivalent length of 3" pipe allowed for that model and is thus acceptable.

TABLE 10: Combustion Air Intake and Vent Connection Size at Furnace (All Models)

FURNACE VENT CONNECTION SIZES

Furnace Input

40 - 100 MBH

120 - 130 MBH

(17.5 - 29.3 kW)

(35.2 - 39.6 kW)

 

 

 

 

Intake Pipe Size

2” (5.1 cm)

3” (7.6 cm)

Vent Pipe Size

2” (5.1 cm)

2” (5.1 cm)

*. Vent pipe size must be increased to 3” diameter after connection to furnace on this model.

Accessory concentric vent / intake termination kits 1CT0302 and 1CT0303 are available and approved for use with these furnaces. Horizontal sidewall vent terminations kits 1HT0901 & 1HT0902 are also approved for use with these furnaces.

Furnace vent pipe connections are sized for 2” (5.1 cm). pipe. Any pipe size change must be made outside the furnace casing in a ver- tical pipe section to allow proper drainage of condensate. An offset using two 45º (degree) elbows will be required for plenum clear- ance when the vent is increased to 3” (7.6 cm).

COMBUSTION AIR AND VENT PIPING ASSEMBLY

The final assembly procedure for the combustion air and vent piping is as follows:

1.Cut piping to the proper length beginning at the furnace.

2.Deburr the piping inside and outside.

3.Chamfer (bevel) the outer edges of the piping.

4.Dry-fit the vent piping assembly from the furnace to the outside ter- mination checking for proper fit support and slope.

5.Dry-fit the combustion air piping assembly checking for proper fit, support and slope on the following systems:

a.Sealed combustion air systems from the furnace to the out- side termination.

b.Ventilated combustion air systems from the furnace to the attic or crawl space termination.

Solvent cements are flammable and must be used in well-ventilated areas only. Keep them away from heat, sparks and open flames. Do not breathe vapors and avoid contact with skin and eyes.

6.Disassemble the combustion air and vent piping, apply cement primer and the cement per the manufactures instructions. Primer and cement must conform to ASTM D2564 for PVC, or ASTM D2235 for ABS piping.

7.All joints must provide a permanent airtight and watertight seal.

8.Support the combustion air and vent piping such that it is angled a minimum of 1/4” per foot (21 mm/m) so that condensate will flow back towards the furnace. Piping should be supported with pipe hangers to prevent sagging.

9.Seal around the openings where the combustion air and / or vent piping pass through the roof or sidewalls.

COMBUSTION AIR / VENTING

The vent must be installed with the minimum required clearances, and must comply with local codes and requirements.

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Contents List of Figures Section I SafetyList of Sections List of TablesSafety Requirements Specific Safety Rules and PrecautionsCombustion AIR Quality List of Contaminants Inspection Codes and StandardsDirectly BELOW. Keep Clear of ALL OBSTRUC- Tions Furnace Location and Clearances Section II DuctworkDuctwork General Information COIL/FURNACE Assembly MC/FC/PC Series Coils Floor Base and Ductwork Installation DownflowCoil Installation Furnace Assembly MC & FC Series CoilsFurnace Assembly PC Series Coils Coil Flange InstallationFurnace Assembly MC Series Coils only Coil / Furnace Assembly HC Series CoilsSuspended Furnace / Crawl Space Installation Downflow Duct Connectors Attic InstallationBottom Return and Attic Installations Horizontal ApplicationSection III Filters Filter InstallationCabinet Dimensions Inches Btuh kW NominalSection IV GAS Piping GAS SafetyGAS Piping Installation Side ReturnElectrical Power Connections Section V Electrical PowerHigh Altitude Pressure Switch Conversion GAS Orifice Conversion for Propane LPSupply Voltage Connections LOW Voltage Control Wiring ConnectionsAfue AC 5D HP 2C Section VI Twinning and Staging Single-Wire Staging Instructions Single-Wire Twinning OperationSingle-Wire Staging Single-Wire Staging OperationCondensate Drain Termination Condensate Drain LocationCondensate Drain Trap and Drain Freeze Protection Inducer Rotated for Right Side Venting Airflow Horizontal Left Inducer Rotated Horizontal Right Inducer Rotated Section Viii Combustion AIR and Vent System Combustion AIR and Vent SafetyCombustion AIR/VENT Pipe Sizing Fitting Equivalent Length Combustion AIR and Vent Piping AssemblyCombustion AIR / Venting Furnace Vent Connection SizesVent Clearances Home LayoutVent Applications and Termination Vent SystemVenting Multiple Units Combustion Air Source From Outdoors Combustion AIR SupplyOutdoor Combustion Air Ambient Combustion Air SupplyAir Supply Openings and Ducts Free AreaVentilated Combustion Air Termination Specially Engineered InstallationsVentilated Combustion Air Vent Blower RotationIgnition System Sequence Section IX START-UP AdjustmentsGAS Piping Leak Check Calculating the Furnace Input Natural GASSeconds For Seconds For Size of Test Dial Revolution Cu FtRevolution Cu Ft Read the manifold gas pressure Adjustment of Manifold GAS Pressure & Input RateRead the inlet gas pressure Inlet GAS Pressure RangeSection X Safety Controls Limit Controls TroubleshootingFurnace Control Diagnostics Sequence of OperationDiagnostic Fault Code Storage and Retrieval Section XI Replacement Parts List Section XII Wiring Diagram Johnson Controls Unitary Products York Drive Norman, OK Med-Lo Models ESP Nominal Size awg @ Over Current AmpsProtection Factory HeatingHorizontal Right

TG9S*MP, GG9S*MP specifications

Johnson Controls has long been at the forefront of building efficiency solutions, and their TG9S*MP and GG9S*MP series exemplify this commitment. These two-stage, multi-position gas furnaces are designed for optimal comfort and performance in residential applications, and they come packed with a variety of features that enhance their efficiency and operational capabilities.

One of the standout features of the TG9S*MP and GG9S*MP furnaces is their efficient two-stage operation. This technology allows the unit to operate at a lower capacity most of the time, which translates into reduced energy consumption and costs. When the demand for heating increases, the furnace automatically shifts to a higher capacity, ensuring a consistent and comfortable indoor temperature. This flexibility not only enhances comfort but also extends the lifespan of the unit as it doesn't have to work harder than necessary.

Energy efficiency is a crucial characteristic of both models. With an Annual Fuel Utilization Efficiency (AFUE) rating of up to 96%, these furnaces convert a significant amount of the fuel they consume into usable heat. Such efficiency ratings not only help in reducing energy bills but also have a positive impact on the environment by minimizing greenhouse gas emissions.

Both models feature advanced technology in their design, including a fully modulating gas valve and a variable-speed blower motor. The modulating valve adjusts the gas flow in response to the thermostat’s signals, allowing for precise temperature control and improved comfort. Meanwhile, the variable-speed blower motor enhances airflow while operating quietly, significantly improving overall indoor air quality by promoting even heat distribution throughout the home.

From a structural standpoint, the TG9S*MP and GG9S*MP are built with durable materials designed for longevity. Their compact design allows for flexible installation options, whether in a closet, attic, or basement. The furnaces also come equipped with a robust heat exchanger crafted from high-quality materials, which ensures both reliability and efficiency.

In conclusion, the Johnson Controls TG9S*MP and GG9S*MP furnaces provide homeowners with efficient, reliable, and comfortable heating solutions. With advanced features such as two-stage operation, impressive AFUE ratings, and modern technology integrations, these models stand out in the market as dependable options for both energy savings and year-round comfort. Whether you're a homeowner looking to upgrade your heating system or a contractor seeking high-quality products for your clients, these furnaces represent a smart choice.
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