Franklin GM9S96 - User Manual

Contents
Nomenclature ............................................2
 ...............................3
 ................................................ 5
 ................................ 7
Wiring Diagram ........................................19
 ..............................................20
Standard Features Cabinet Features
• 
• 
• 
• 
• 
• 

• 

• 


• 
• 


• 

• 

• 

• Q
• 
• 
• 


Single-Stage, Multi-Speed
ECM Gas Furnace
Up to 96% AFUE
GM9S96/GC9S96
Heating Input: 40,000–120,000 BTU/h
* 

.
SS-FGM9S96/FGC9S96 www.franklinhvacsysstems.com 8/21

Summary

GM9 S96 Furnace Dimensions and Clearances

GM9 S96 Minimum Combustible Clearances

Specifies required clearances for GM9S96 furnace installation to combustible materials.

GC9 S96 Furnace Dimensions and Clearances

GC9 S96 Minimum Combustible Clearances

Specifies required clearances for GC9S96 furnace installation to combustible materials.

GM9 S96 Heating Airflow Data and Filter Sizes

GM9 S96 Minimum Filter Specifications

Details recommended filter dimensions and quantity for GM9S96 furnaces.

BTU Output vs. Temperature Rise Chart

Temperature Rise Calculation Formulas

Formulas for calculating BTU/h output and temperature rise based on CFM and other factors.

Furnace Wiring Diagram and Safety

Wiring Diagram Safety Information

Key safety warnings, installation notes, and important considerations for the furnace wiring diagram.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Maintenance Features

The Franklin GM9S96/GC9S96 is a single-stage, multi-speed ECM gas furnace designed for residential heating applications, offering up to 96% AFUE (Annual Fuel Utilization Efficiency). This device is available in various heating input capacities ranging from 40,000 to 120,000 BTU/H, making it suitable for a wide range of home sizes and heating demands.

Function Description:

The furnace operates as a gas-fired heating system, utilizing natural gas (BTU/h) to generate heat. It features a single-stage gas valve, meaning it operates at a consistent heating output when called upon. The multi-speed ECM (Electronically Commutated Motor) circulator blower allows for efficient air circulation throughout the home, adapting its speed to meet heating and cooling demands. The ECM motor is known for its energy efficiency and quiet operation. The furnace is designed for multi-position installation, accommodating upflow, downflow, and horizontal left or right configurations, providing flexibility for various installation scenarios. It can be certified for both direct vent (2-pipe) or non-direct vent (1-pipe) applications.

Important Technical Specifications:

• Heating Input: Available in models from 40,000 BTU/h to 120,000 BTU/h.
• Heating Output: Ranges from 38,440 BTU/h to 115,320 BTU/h, depending on the model.
• AFUE: Up to 96%, indicating high energy efficiency.
• Temperature Rise Range: Varies by model, typically between 25-55°F and 45-75°F.
• Vent Diameter: 2"-3" PVC, depending on the furnace input and installation type.
• Circulator Blower: Features an ECM motor with horsepower ranging from 1/2 HP to 1 HP, operating at 1075 RPM with 9 speeds. Available AC at 0.5" ESP ranges from 1.5-3 to 3-5.
• Cabinet Width: Available in 14", 17.5", 21", and 24.5" widths.
• Electrical Data: Minimum Circuit Ampacity ranges from 10.3 to 16.93 amps. Maximum Overcurrent Device (fuse or circuit breaker) is 15 or 20 amps. All furnaces are manufactured for use on 115 VAC, 60 Hz, single-phase electrical supply.
• Filter Size: Varies by model and return configuration (side or bottom/top return), with common sizes including 10x20, 14x20, 14x25, 16x25, and 20x25 inches.
• Low NOx Emissions: All models comply with California 40 ng/J Low NOx emissions standard. However, as of October 1, 2019, these units can no longer be installed in California's South Coast Air Quality Management District (SCAQMD).

Usage Features:

• Multi-position Installation: The furnace's design allows for flexible installation in upflow, downflow, or horizontal orientations, making it adaptable to different home layouts and existing ductwork.
• Quiet Operation: Equipped with a quiet single-speed induced draft blower and an ECM circulator blower, contributing to reduced noise levels during operation.
• Easy-to-Install Venting: Features easy-to-install top venting with optional side venting for GM9S96/upflow models, simplifying installation.
• Convenient Service Connections: Offers convenient left or right connections for gas and electrical service, enhancing ease of installation and maintenance.
• Airtight Cabinet: Designed with a cabinet air leakage (QLeak) of ≤ 2%, ensuring minimal air loss and improved efficiency.
• Solid Bottom/Side Return: Features an airtight solid bottom or side return with easy-cut tabs for effortless removal in bottom air-inlet applications.
• Thermostat Compatibility: Compatible with various thermostat call types for heating (W/W1) and cooling (Y2 for high stage, Y/Y1 for low stage), allowing for precise temperature control.

Maintenance Features:

• Self-Diagnostic Control Board: Includes a self-diagnostic control board with constant memory fault code history output to an LED. This feature aids in quick troubleshooting and diagnosis of issues, displaying error codes for easy reference.
• Durable Components: Built with a heavy-duty aluminized-steel tubular heat exchanger, a stainless-steel secondary heat exchanger, and a durable Silicon Nitride igniter, all designed for long-lasting performance and reliability.
• Easy Access: A 24" front clearance is required for servicing or cleaning, ensuring adequate space for maintenance tasks. Unit connections (electrical, flue, and drain) may necessitate greater clearances.
• Filter Maintenance: The furnace requires external filters, which must be provided by the installer. The manual provides minimum filter sizes for various models and configurations. Filters may also be centrally located.
• Warranty: Comes with a Lifetime Heat Exchanger Limited Warranty (for as long as you own your home), a 10-Year Unit Replacement Limited Warranty, and a 10-Year Parts Limited Warranty, subject to online registration within 60 days of installation (not required in California or Québec).

Franklin GM9S96 Specifications

General

Brand	Franklin
Model	GM9S96
Category	Furnace
Language	English