Johnson Controls TG9S*MP Section V Electrical Power, GAS Orifice Conversion for Propane LP

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364861-UIM-B-0708

The furnace must be isolated from the gas supply piping system by closing its individual external manual shutoff valve during any pressure testing of the gas supply piping system at pressures equal to or less than 1/2 psig (3.5 kPa).

The gas valve body is a very thin casting that cannot take any external pressure. Never apply a pipe wrench to the body of the gas valve when installing piping. A wrench must be placed on the octa- gon hub located on the gas inlet side of the valve. Placing a wrench to the body of the gas valve will damage the valve causing improper operation and/or the valve to leak.

Gas piping may be connected from either side of the furnace using any of the gas pipe entry knockouts on both sides of the furnace. Refer to Figure 12, "Dimensions".

GAS ORIFICE CONVERSION FOR PROPANE (LP)

This furnace is constructed at the factory for natural gas-fired operation, but may be converted to operate on propane (LP) gas by using a fac- tory-supplied LP conversion kit. Follow the instructions supplied with the LP kit.

HIGH ALTITUDE GAS ORIFICE CONVERSION

This furnace is constructed at the factory for natural gas-fired operation at 0 –5,000 feet (0-m – 1,524 m) above sea level.

The manifold pressure must be changed in order to maintain proper and safe operation when the furnace is installed in a location where the altitude is greater than 5,000 feet (1,524 m) above sea level. Refer to Table 5, "Nominal Manifold Pressure - High Fire" for proper manifold pressure settings.

HIGH ALTITUDE PRESSURE SWITCH CONVERSION

For installation where the altitude is less than 5,000 feet (1,524m), it is not required that the pressure switch be changed unless you are in an area subject to low pressure inversions.

Table 5: Nominal Manifold Pressure - High Fire

Manifold Pressures (in wc)

 

 

 

 

Altitude (feet)

 

 

 

 

0-7999

8000-8999

9000-9999

 

 

800

3.5

3.5

3.5

 

 

 

 

 

 

Value

 

850

3.5

3.5

3.5

ft.)

 

 

 

 

 

 

900

3.5

3.5

3.5

HeatingGas

 

 

 

 

 

(BTU/cu

950

3.5

3.5

3.3

 

 

 

 

1100

3.2

2.7

2.4

 

 

1000

3.5

3.2

2.9

 

 

1050

3.5

2.9

2.7

 

 

 

 

 

 

 

 

2500 (LP)

9.8

8.2

7.5

Manifold Pressures (kpa)

 

 

 

 

Altitude (m)

 

 

 

 

0-2437

2438-2742

2743-3048

 

 

29.8

0.87

0.87

0.87

 

 

 

 

 

 

HeatingValue

 

31.7

0.87

0.87

0.87

(MJ/cum)

33.5

0.87

0.87

0.87

35.4

0.87

0.87

0.81

 

 

 

 

 

 

37.3

0.87

0.80

0.73

Gas

 

39.1

0.87

0.73

0.67

 

41.0

0.80

0.66

0.61

 

 

 

 

 

 

 

 

93.2 (LP)

2.44

2.03

1.86

PROPANE AND HIGH ALTITUDE CONVERSION KITS

It is very important to choose the correct kit and/or gas orifices for the altitude and the type of gas for which the furnace is being installed.

Only use natural gas in furnaces designed for natural gas. Only use propane (LP) gas for furnaces that have been properly converted to use pro- pane (LP) gas. Do not use this furnace with butane gas.

Incorrect gas orifices or a furnace that has been improperly converted will create an extremely dangerous condition resulting in premature heat exchanger failure, excessive sooting, high levels of carbon monoxide, personal injury, property damage, a fire hazard and/or death.

High altitude and propane (LP) conversions are required in order for the appliance to satisfactory meet the application. An authorized distributor or dealer must make all gas conversions.

In Canada, a certified conversion station or other qualified agency, using factory specified and/or approved parts, must perform the conversion. The installer must take every precaution to insure that the furnace has been converted to the proper gas orifice size when the furnace is installed. Do not attempt to drill out any orifices to obtain the proper orifice size. Drilling out a gas orifice will cause misalignment of the burner flames, causing premature heat exchanger burnout, high levels of carbon monoxide, excessive sooting, a fire hazard, personal injury, property damage and/or death.

SECTION V: ELECTRICAL POWER

ELECTRICAL POWER CONNECTIONS

Field wiring to the unit must be grounded. Electric wires that are field installed shall conform to the temperature limitation for 63°F (35°C) rise wire when installed in accordance with instructions. Refer to Table 6, "Ratings & Physical / Electrical Data" in these instructions for specific furnace electrical data.

Use copper conductors only.

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Johnson Controls Unitary Products

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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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