Johnson Controls TG9S Installation Manual and Guide for Your Furnace
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SIDE RETURN

Locate the “L” shaped corner locators. These indicate the size of the cut- out to be made in the furnace side panel. Refer to Figure 13, "Side Return Cutout Markings".

Front of

Furnace

Side of

Furnace

Corner

Markings

FIGURE 13: Side Return Cutout Markings

Install the side filter rack following the instructions provided with that accessory. If a filter(s) is provided at another location in the return air system, the ductwork may be directly attached to the furnace side panel.

Some accessories such as electronic air cleaners and pleated media may require a larger side opening. Follow the instructions supplied with that accessory for side opening requirements. Do not cut the opening larger than the dimensions shown in Figure 12, "Dimensions".

HORIZONTAL APPLICATION

Horizontal Filters

All filters and mounting provision must be field supplied. All installa- tions must have a filter installed.

Any branch duct (rectangular or round duct) attached to the plenum must attach to the vertical plenum before the filter. The use of straps and / or supports is required to support the weight of the external filter box.

Downflow Filters

Downflow furnaces typically are installed with the filters located above the furnace, extending into the return air plenum or duct. Any branch duct (rectangular or round duct) attached to the plenum must attach to the vertical plenum above the filter height.

Filter(s) may be located in the duct system external to the furnace using an external duct filter box attached to the furnace plenum or at the end of the duct in a return filter grille(s). The use of straps and/or supports is required to support the weight of the external filter box.

SECTION IV: GAS PIPING

GAS SAFETY

An overpressure protection device, such as a pressure regulator, must be installed in the gas piping system upstream of the furnace and must act to limit the downstream pressure to the gas valve so it does not exceed 0.5 PSI (14" w.c. (3.48 kPa). Pressures exceeding

0.5PSI (14” w.c. (3.48 kPa) at the gas valve will cause damage to the gas valve, resulting in a fire or explosion or cause damage to the furnace or some of its components that will result in property damage and loss of life.

364861-UIM-B-0708

Outlet

Pressure Vent Port

Port

Inlet

 

Outlet

Wrench

OFF

 

Boss

ON

 

Inlet

Main Regulator

Pressure

On/Off Switch

Adjustment

Port

 

(Shown in ON position)

 

FIGURE 14: Gas Valve

Plan your gas supply before determining the correct gas pipe entry. Use 90-degree service elbow(s), or short nipples and conventional 90-degree elbow(s) to enter through the cabinet access holes.

GAS PIPING INSTALLATION

Properly sized wrought iron, approved flexible or steel pipe must be used when making gas connections to the unit. If local codes allow the use of a flexible gas appliance connection, always use a new listed con- nector. Do not use a connector that has previously serviced another gas appliance.

Some utility companies or local codes require pipe sizes larger than the minimum sizes listed in these instructions and in the codes. The furnace rating plate and the instructions in this section specify the type of gas approved for this furnace - only use those approved gases. The instal- lation of a drip leg and ground union is required. Refer to Figure 15, "Upflow/Downflow Gas Piping".

 

 

 

 

External Manual

 

 

 

 

Shutoff Valve

To Gas

 

 

 

 

 

 

 

To Gas

Supply

 

 

 

 

 

 

 

Supply

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Drip Leg

Grounded Joint Union

 

may be Installed

 

 

 

 

Inside or Outside Unit.

 

FIGURE 15: Upflow/Downflow Gas Piping

 

 

Manual

 

 

Shut-off

 

 

Valve

Drip

 

 

 

Gas

Leg

 

 

 

Pipe

Gas Burners

 

 

 

Gas

Gas Valve

 

 

 

Pipe

 

 

 

Drip

Manual

 

 

Leg

Shut-off Valve

 

 

 

 

 

FIGURE 16: Horizontal Gas Piping

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

An accessible manual shutoff valve must be installed upstream of the furnace gas controls and within 6 feet (1.8 m) of the furnace.

Johnson Controls Unitary Products

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Contents List of Sections Section I SafetyList 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 Coil Installation Floor Base and Ductwork Installation DownflowCOIL/FURNACE Assembly MC/FC/PC Series Coils Furnace Assembly MC & FC Series CoilsFurnace Assembly MC Series Coils only Coil Flange InstallationFurnace Assembly PC Series Coils Coil / Furnace Assembly HC Series CoilsBottom Return and Attic Installations Downflow Duct Connectors Attic InstallationSuspended Furnace / Crawl Space Installation Horizontal ApplicationCabinet Dimensions Inches Filter InstallationSection III Filters Btuh kW NominalGAS Piping Installation GAS SafetySection IV GAS Piping Side ReturnHigh Altitude Pressure Switch Conversion Section V Electrical PowerElectrical 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 Staging Single-Wire Twinning OperationSingle-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 / Venting Combustion AIR and Vent Piping AssemblyFitting Equivalent Length Furnace Vent Connection SizesHome Layout Vent ClearancesVent System Vent Applications and TerminationVenting Multiple Units Outdoor Combustion Air Combustion AIR SupplyCombustion Air Source From Outdoors Ambient Combustion Air SupplyFree Area Air Supply Openings and DuctsVentilated Combustion Air Specially Engineered InstallationsVentilated Combustion Air Termination Vent Blower RotationGAS Piping Leak Check Section IX START-UP AdjustmentsIgnition System Sequence Calculating the Furnace Input Natural GASSeconds For Size of Test Dial Revolution Cu Ft Seconds ForRevolution Cu Ft Read the inlet gas pressure Adjustment of Manifold GAS Pressure & Input RateRead the manifold gas pressure Inlet GAS Pressure RangeSection X Safety Controls Furnace Control Diagnostics TroubleshootingLimit 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 Protection Models ESP Nominal Size awg @ Over Current AmpsMed-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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