This article details the installation procedures for Goodman horizontal two-way coils, based on official installation manuals and documentation. It covers pre-installation considerations, application information, safety instructions, and specific steps for duct flange attachment. The documentation emphasizes the importance of adhering to local and national codes and regulations during installation.
Pre-Installation Procedures
Prior to commencing installation, several preparatory steps are crucial. Installers must carefully read all provided instructions to ensure complete understanding of each procedure and any special considerations. As stated in multiple sources, assembling all necessary tools, hardware, and supplies is essential before beginning the installation process. Some items may require local procurement. The documentation stresses verifying the complete product model and serial numbers as stamped on the product for future reference when ordering replacement parts.
The documentation highlights the importance of a thorough shipping inspection. Upon receipt, the product should be inspected for any damage incurred during transit. Responsibility for investigating shipping damage rests with the carrier. It is also vital to verify that the model number, specifications, electrical characteristics, and included accessories are correct before proceeding with installation. Distributors and manufacturers will not accept claims for incorrectly shipped units or transportation damage.
Safety Precautions
Installation of this equipment requires adherence to specific safety guidelines. The documentation includes warnings regarding high voltage and emphasizes the necessity of disconnecting all power sources before servicing the unit. It cautions that multiple power sources may be present. Failure to disconnect power can result in property damage, personal injury, or even death.
Furthermore, the documentation specifies that only individuals meeting the minimum requirements of an “Entry Level Technician,” as defined by the Air Conditioning, Heating, and Refrigeration Institute (AHRI), should attempt to install or repair this unit. Attempting installation or repair without the appropriate background and training may lead to product damage, personal injury, or death. Only licensed personnel should service the equipment, as indicated in the documentation.
Application and Positioning
These Goodman coils are designed for horizontal installation and function as two-way coils. They are intended to be installed upstream of the furnace and downstream of the air handler. The documentation specifies that the coil is bi-directional, allowing for installation in either the left or right direction. The optimal direction is determined by whichever side provides the best access for maintenance and servicing. Figures illustrating right and left-hand applications are provided in the documentation.
No conversion is required to switch between right and left-hand applications. The duct flanges are to be attached to the discharge side of the unit. If the coil and furnace do not align in depth and width, a field-supplied transition piece should be used to center the openings. A supplied Z-bracket attachment is available for securing the coil to a narrower Goodman or Amana furnace when the furnace is one size smaller than the coil. The documentation includes a diagram (Figure 3) illustrating the correct use of the Z-bracket and a separate diagram (Figure 3a) demonstrating an incorrect attachment method.
Duct Flange Installation
The installation process includes specific steps for attaching the duct flanges. The shipping bracket spanning the A-Coil apex to the rear of the wrapper must be removed on all models prior to installation. The bottom duct flange for the supply plenum side is shipped unattached. To install it, the flange is carefully inserted into the bottom rail and secured with a 5/16" screw at the middle of the flange.
Regulatory Compliance and Refrigerant Handling
The documentation emphasizes the importance of adhering to all applicable codes and regulations during installation. The United States Environmental Protection Agency (EPA) has established regulations regarding the introduction and disposal of refrigerants. Failure to comply with these regulations can result in environmental harm and substantial fines. Installers are advised to contact their local EPA office for clarification on these regulations.
Replacement Parts and Support
When ordering replacement parts or reporting shortages or damages, it is essential to provide the complete product model and serial numbers as stamped on the product. Replacement parts are available through the contractor or local distributor. Contact information for locating the nearest distributor is provided: consulting the white business pages, the yellow page section of the local telephone book, or contacting Goodman Manufacturing Company, L.P. at 877-254-4729. Homeowner support can be reached at the same number, or by contacting Goodman Manufacturing Company, L.P. at 19001 Kermier Road, Waller, Texas 77484.
Conclusion
The installation of Goodman horizontal two-way coils requires careful attention to detail, adherence to safety guidelines, and compliance with relevant codes and regulations. Proper pre-installation preparation, correct application and positioning, and accurate duct flange attachment are critical for optimal performance and longevity. Utilizing the provided documentation and contacting Goodman Manufacturing Company for support when needed will ensure a successful installation.