Johnson Controls TG9S*MP Vent System, Vent Applications and Termination, Venting Multiple Units

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364861-UIM-B-0708

VENT SYSTEM

This furnace is certified to be installed with one of two possible vent configurations.

1.Horizontal vent system. This vent system can be installed com- pletely horizontal or combinations of horizontal, vertical, or offset using elbows.

2.Vertical vent system. This vent system can be installed completely vertical or a combination of horizontal, vertical, or offset using elbows.

VENT APPLICATIONS AND TERMINATION

When selecting the location for a combustion air / vent termination, the following should be considered:

1.Observe all clearances listed in vent clearances in these instruc- tions.

2.Termination should be positioned where vent vapors will not dam- age plants or shrubs or air conditioning equipment.

3.Termination should be located where it will not be affected by wind gusts, light snow, airborne leaves or allow recirculation of flue gases.

4.Termination should be located where it will not be damaged or exposed to flying stones, balls, etc.

5.Termination should be positioned where vent vapors are not objec- tionable.

6.Horizontal portions of the vent system must slope upwards and be supported to prevent sagging.

7.Direct vent systems must be installed so the vent and the combus- tion air pipes terminate in the same atmospheric zone. Refer to Figures 13 or 14.

Maintain 12” minimum clearance above highest anticipated snow level. Maximum 24” above roof.

12” Min.

12” Min.

FIGURE 29: Termination Configuration - 1 Pipe

 

 

12” vertical separation

 

Maintain 12” minimum

between combustion air

12” minimum

intake and vent.

clearance above

below overhang

 

 

highest anticipated

 

 

12” minimum

snow level.

 

 

 

 

separation between

 

 

 

 

 

 

 

 

 

 

 

 

bottom of

 

 

 

 

 

 

 

 

combustion air pipe

 

 

 

 

 

 

 

 

and bottom of vent.

 

 

 

 

Maintain 12”

 

 

 

 

 

 

 

 

minimum clearance

 

 

 

 

above highest

 

 

 

 

anticipated snow

 

 

 

 

level or grade,

 

 

 

 

whichever is higher.

FIGURE 30: Termination Configuration - 2 Pipe

12” MIN.

12” Minimum below overhang

12” MIN.

12” Minimum separation between bottom of combustion air intake and bottom of vent

Maintain 12” minimumclearance above highest anticipated snow level or grade, whichever is higher

FIGURE 31: Termination Configuration - 2 Pipe Basement

VENTING MULTIPLE UNITS

Multiple units can be installed in a space or structure as either a single pipe configuration or a two-pipe configuration.

The combustion air side of the single pipe configuration shown in Figure 29 is referred to in these instructions as ambient combustion air supply. Follow the instructions for ambient combustion air installations, paying particular attention to the section on air source from inside the building. The vent for a single pipe system must be installed as specified in the venting section of these instructions with the vent terminating as shown in Figure 29. Each furnace must have a separate vent pipe. Under NO circumstances can the two vent pipes be tied together.

The combustion air side of the two-pipe configuration shown in Figure 30 can be installed so the combustion air pipe terminates as described in outdoor combustion air or ventilated combustion air sections in these instructions. Follow the instructions for outdoor combustion air or venti- lated combustion air and the instructions for installing the vent system with the vent terminating as shown in Figures 32 or 33. The two-pipe system must have a separate combustion air pipe and a separate vent pipe for each furnace. Under NO circumstances can the two combus- tion air or vent pipes be tied together. The combustion air and vent pipes must terminate in the same atmospheric zone.

VENT

COMBUSTION AIR

2”

MIN.

FIGURE 32: Double Horizontal Combustion Air Intake and Vent Termination

MIN.

6”

FIGURE 33: Double Vertical Combustion Air Intake and Vent Termination

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Johnson Controls Unitary Products

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Contents Section I Safety List of SectionsList of Figures List of TablesSpecific Safety Rules and Precautions Safety RequirementsCombustion AIR Quality List of Contaminants Codes and Standards InspectionDirectly BELOW. Keep Clear of ALL OBSTRUC- Tions Section II Ductwork Furnace Location and ClearancesDuctwork General Information Floor Base and Ductwork Installation Downflow Coil InstallationCOIL/FURNACE Assembly MC/FC/PC Series Coils Furnace Assembly MC & FC Series CoilsCoil Flange Installation Furnace Assembly MC Series Coils onlyFurnace Assembly PC Series Coils Coil / Furnace Assembly HC Series CoilsDownflow Duct Connectors Attic Installation Bottom Return and Attic InstallationsSuspended Furnace / Crawl Space Installation Horizontal ApplicationFilter Installation Cabinet Dimensions InchesSection III Filters Btuh kW NominalGAS Safety GAS Piping InstallationSection IV GAS Piping Side ReturnSection V Electrical Power High Altitude Pressure Switch ConversionElectrical Power Connections GAS Orifice Conversion for Propane LPLOW Voltage Control Wiring Connections Supply Voltage ConnectionsAfue AC 5D HP 2C Section VI Twinning and Staging Single-Wire Twinning Operation Single-Wire StagingSingle-Wire Staging Instructions Single-Wire Staging OperationCondensate Drain Location Condensate Drain TerminationCondensate Drain Trap and Drain Freeze Protection Inducer Rotated for Right Side Venting Airflow Horizontal Left Inducer Rotated Horizontal Right Inducer Rotated Combustion AIR and Vent Safety Section Viii Combustion AIR and Vent SystemCombustion AIR/VENT Pipe Sizing Combustion AIR and Vent Piping Assembly Combustion AIR / VentingFitting Equivalent Length Furnace Vent Connection SizesVent Clearances Home LayoutVent System Vent Applications and TerminationVenting Multiple Units Combustion AIR Supply Outdoor Combustion AirCombustion Air Source From Outdoors Ambient Combustion Air SupplyAir Supply Openings and Ducts Free AreaSpecially Engineered Installations Ventilated Combustion AirVentilated Combustion Air Termination Vent Blower RotationSection IX START-UP Adjustments GAS Piping Leak CheckIgnition System Sequence Calculating the Furnace Input Natural GASSeconds For Size of Test Dial Revolution Cu Ft Seconds ForRevolution Cu Ft Adjustment of Manifold GAS Pressure & Input Rate Read the inlet gas pressureRead the manifold gas pressure Inlet GAS Pressure RangeSection X Safety Controls Troubleshooting Furnace Control DiagnosticsLimit Controls 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 Models ESP Nominal Size awg @ Over Current Amps ProtectionMed-Lo 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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