INSTALLATION MANUAL

RESIDENTIAL GAS FURNACE MODELS TG8S*MP, TGLS*MP, GG8S*MP, GGLS*MP (Single Stage Multi-position / Low NOx)

LIST OF SECTIONS

SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 DUCTWORK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 FILTERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 GAS PIPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 ELECTRICAL POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 TWINNING AND STAGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

VENT SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 START-UP AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 19 SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 REPLACEMENT PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 REPLACEMENT PART CONTACT INFORMATION . . . . . . . . . . . . 28 WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

LIST OF FIGURES

Duct Attachment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Vertical Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Coil Flange . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Horizontal Right Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Horizontal Left Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 PC Series Upflow Coil Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Horizontal Left or Right application (Right Shown) . . . . . . . . . . . . . . 7 Combustible Floor Base Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Horizontal Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Typical Attic Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Typical Suspended Furnace / Crawl Space Installation . . . . . . . . . . . 8 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Side Return Cutout Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Thermostat Chart - Single Stage AC with

Single Stage PSC Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Thermostat Chart - Single Stage HP with

Single Stage PSC Furnaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Typical Twinned Furnace Application . . . . . . . . . . . . . . . . . . . . . . . . 15 Single Wire Twinning Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . 16 Single Wire Staging Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . 16 Combustion Air Inducer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Combustion Airflow Path Through The Furnace

Casing to the Burner Compartment . . . . . . . . . . . . . . . . . . . . . . . . . 17 Outside and Ambient Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . 18 Gas Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Reading Gas Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Furnace Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Wiring Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

LIST OF TABLES

Unit Clearances to Combustibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Coil Projection Dimensions - PC Series Coils . . . . . . . . . . . . . . . . . . 7 Cabinet and Duct Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Recommended Filter Sizes (High Velocity 600 FPM) . . . . . . . . . . . . 9 Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Ratings & Physical / Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . 12 Estimated Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 Unconfined Space Minimum Area . . . . . . . . . . . . . . . . . . . . . . . . . . 18

Free Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 Gas Rate (CU FT/HR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Inlet Gas Pressure Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Nominal Manifold Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Blower Performance CFM - Any Position

(without filter) - Bottom Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Blower Performance CFM - Any Position

(without filter) - Left Side Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

These high efficiency, compact units employ induced combustion, reli- able hot surface ignition and high heat transfer aluminized tubular heat exchangers. The units are factory shipped for installation in upflow or horizontal applications and may be converted for downflow applica- tions.

These furnaces are designed for residential installation in a basement, closet, alcove, attic, recreation room or garage and are also ideal for commercial applications. All units are factory assembled, wired and tested to assure safe dependable and economical installation and oper- ation.

These units are Category I listed and may be common vented with another gas appliance as allowed by the National Fuel Gas Code.

SECTION I: SAFETY

This is a safety alert symbol. When you see this symbol on labels or in manuals, be alert to the potential for personal

injury.

Understand and pay particular attention to the signal words DANGER, WARNING, or CAUTION.

DANGER indicates an imminently hazardous situation, which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation, which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation, which, if not avoided may result in minor or moderate injury. It is also used to alert against unsafe practices and hazards involving only property dam- age.

Improper installation may create a condition where the operation of the product could cause personal injury or property damage. Improper installation, adjustment, alteration, service or mainte- nance can cause injury or property damage. Failure to carefully read and follow all instructions in this manual can result in fur- nace malfunction, death, personal injury and/or property dam- age. Only a qualified contractor, installer or service agency should install this product.

356485-UIM-G-1211

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Johnson Controls TG8S*MP, TGLS*MP installation manual List of Sections, List of Figures, List of Tables, Section I Safety
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TG8S*MP, GG8S*MP, TGLS*MP, GGLS*MP specifications

Johnson Controls is a leader in the development of innovative building management solutions, and its product line encompassing the GGLS*MP, TGLS*MP, TG8S*MP, and GG8S*MP series exemplifies this commitment to excellence. These devices are designed to optimize energy efficiency, enhance occupant comfort, and ensure seamless integration into commercial building infrastructures.

The GGLS*MP series focuses on the integration of advanced sensors and controllers that facilitate effective lighting and HVAC management. With built-in capabilities for occupancy sensing and daylight harvesting, these devices can automatically adjust settings based on real-time conditions. Their energy-efficient operation not only contributes to lower utility costs but also supports sustainability goals, making them ideal for modern green buildings.

In contrast, the TGLS*MP series emphasizes the importance of temperature regulation and comfort in residential or smaller commercial settings. These controllers utilize advanced algorithms to maintain optimal indoor climates, adjusting heating and cooling outputs in response to ambient conditions. The intuitive user interface makes it easy for users to customize their settings, providing enhanced comfort without sacrificing energy efficiency.

The TG8S*MP series is particularly renowned for its robust communication features. These devices support multiple communication protocols, allowing them to integrate smoothly with existing building management systems. This versatility ensures that customers can leverage their current infrastructure while benefiting from new technology. Additionally, the TG8S*MP includes remote monitoring capabilities, enabling facility managers to track performance metrics and troubleshoot issues from anywhere.

Lastly, the GG8S*MP series brings together security and control features, ensuring that buildings are not only energy-efficient but also secure. With capabilities for access control and monitoring, these devices provide a comprehensive solution for managing facility safety. Their integration with lighting and HVAC systems further enhances overall efficiency, creating a comfortable and secure environment for all occupants.

In summary, Johnson Controls’ GGLS*MP, TGLS*MP, TG8S*MP, and GG8S*MP series presents cutting-edge technologies designed for energy efficiency, ease of use, and versatility. By focusing on comprehensive building management, these products provide optimal performance that aligns with sustainability objectives while enhancing comfort and security. Whether in commercial or residential settings, Johnson Controls continues to lead the way in the intelligent building sector.
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