Installation Guidelines and Technical Specifications for Payne Horizontal Gas Furnace

The Payne Horizontal Gas Furnace is a highly efficient and versatile heating solution designed for residential and light commercial applications. This furnace is engineered to be installed in a horizontal orientation, providing flexibility in tight spaces and unique installation scenarios. In this comprehensive guide, we’ll explore the installation guidelines, technical specifications, and key considerations for the Payne Horizontal Gas Furnace.

What is the Proper Installation Orientation for the Payne Horizontal Gas Furnace?

The Payne Horizontal Gas Furnace is designed to be installed in a horizontal position. Proper installation in this orientation is crucial for the furnace’s efficient and safe operation. The furnace must be pitched forward to ensure proper condensate drainage from the secondary heat exchangers. The recommended pitch is between 1/4 inch and 1/2 inch forward. It’s important to note that the furnace must not be installed upside down, as this would adversely affect the safety control operation and could lead to fire, property damage, personal injury, or death.

How Does the Efficiency and Measurements of the Payne Horizontal Gas Furnace Affect the Installation?

Ensuring the correct pitching of the Payne Horizontal Gas Furnace is essential for maintaining its efficiency. Improper pitching can lead to issues with condensate drainage, which may affect the reliability of the heat exchangers, motors, and controls. Additionally, maintaining the specified clearances from combustible materials is critical for safe operation. For example, a 1-inch (25 mm) clearance is required from combustible materials to the supply air ductwork for a distance of 36 inches (914 mm) horizontally from the furnace.

What Safety Considerations Should Be Taken into Account When Installing the Payne Horizontal Gas Furnace?

Safety is of paramount importance when installing the Payne Horizontal Gas Furnace. Here are the key safety considerations:

1. Clearances to Combustibles: The furnace must not be installed directly on any combustible material other than wood flooring. For downflow installations, a factory accessory floor base must be used when installed on combustible materials and wood flooring. A minimum 1-inch (25 mm) clearance from combustible materials is required for the furnace and supply air ductwork.

2. Venting and Combustion Air: The installation must comply with regulations regarding vent sizing and material, gas input rate, air temperature rise, and unit leveling. Combustion-air and vent pipes have specific length restrictions and requirements. A 12-inch minimum offset pipe section is recommended for short vent systems to reduce excessive condensate droplets.

3. Electrical and Gas Connections: The electrical components must be protected from water, and the installation must comply with local building, heating, plumbing, and gas supplier codes. Gas piping must be installed according to national and local codes, and a sediment trap must be installed in the gas supply piping at the inlet to the gas valve.

4. Tools and Materials: A minimum 12-inch x 22-inch (305 x 559 mm) piece of sheet metal is required for flame roll-out protection in front of the burner area if the furnace is closer than 12 inches to combustible materials. For attic or crawlspace installations, the furnace must be installed on a non-combustible platform, blocks, bricks, or pad.

How Does the Payne Horizontal Gas Furnace Installation Need to Comply with Local Building Codes?

The installation of the Payne Horizontal Gas Furnace must comply with both national and local building codes. In the absence of local codes, the installation must comply with national codes such as the National Fuel Gas Code (NFGC) in the USA and the National Standard of Canada for Gas-Fired Appliances (NSCNGPIC) in Canada. These codes cover requirements related to gas piping, electrical connections, and venting, ensuring the safe and proper installation of the furnace.

What are the Steps and Costs Involved in Installing the Payne Horizontal Gas Furnace?

1. Pre-Installation Steps:
2. Ensure the installation location meets all required clearances and is level or pitched as specified.

3. Remove all shipping brackets and materials before operating the furnace.

4. Installation Steps:

5. Construct a working platform if necessary, ensuring all required clearances are met.
6. Install the furnace on a non-combustible base if required, and ensure proper venting and combustion air configurations.

7. Connect gas and electrical lines according to the instructions and local codes.

8. Costs and Schedules:

9. The costs will vary based on the specific model, installation complexity, and local labor rates. It is recommended to consult with a qualified installer for a detailed estimate.
10. The installation schedule will depend on the complexity of the job and the availability of the installer. Typically, a professional installation can be completed within a few hours to a full day, depending on the site conditions and requirements.

Reference Links

1. Behler-Young Installation Instructions:

2. Operating and Service and Maintenance Instructions for Payne Furnaces

3. Questar Gas Installation Manual:

4. Installation, Start-up, Operating, and Service and Maintenance Instructions for Payne Furnaces

5. Payne Installation Manual:

6. Installation Manual for Payne PG9MAB Series A 4-Way Multipoise Fixed-Capacity Dual-Vent Condensing Gas Furnace