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General| Model | 915SA |
|---|---|
| Heating Capacity | 40, 000-120, 000 BTU/h |
| Fuel Type | Natural Gas or Propane |
| Stages of Heating | Single-Stage |
| Ignition Type | Hot Surface Ignition |
| Type | Gas Furnace |
| Blower Type | Variable Speed |
| Warranty | 10-year parts limited warranty upon registration |
| Heat Exchanger | Aluminized Steel |
Essential safety guidelines, warnings, and precautions for installation and operation.
Compliance requirements with national and local codes for gas appliances.
Procedures to prevent damage to electronic components from static discharge.
Manufacturer's responsibilities for providing venting system instructions and parts.
Hazards related to installation location, including carbon monoxide and fire risks.
Specific hazards and requirements for installing furnaces in garages.
Explains different combustion air supply methods and requirements.
Details methods for providing combustion air from outdoors or indoors.
Hazards from negative pressure conditions affecting furnace operation.
Instructions for relocating the condensate trap in downflow installations.
Instructions for repositioning the condensate trap in horizontal installations.
Precautions against freezing of drain lines and traps to prevent damage.
Detailed steps for connecting the condensate drain to the right side of the casing.
Detailed steps for connecting the condensate drain to the left side of the casing.
Specific instructions for upflow furnace installation and supply air connections.
Guidelines for connecting supply-air ducts to the furnace outlet.
How to connect return-air ducts to the furnace casing.
Requirements for furnace pitch and installation in horizontal orientation.
Lists safety codes like NFGC, NFPA 90B, and Canadian standards.
Compliance with NFGC, NFPA 90B, and Canadian codes for general installation.
Codes and standards for gas piping installation and testing.
Design and sizing guidelines for duct systems, including clearances and sealing.
Factors affecting return duct sizing, focusing on filters and airflow.
Warnings about gas piping safety, testing, and materials.
Cautions to prevent damage to gas controls and burner alignment.
Specific regulations for gas piping in Massachusetts, including licensed installers.
Critical electrical safety warnings for installation and servicing.
Guidelines for connecting the 115-volt power supply, including polarity and grounding.
Procedures for installing the junction box for electrical connections.
Instructions for making 24-volt connections for thermostats and accessories.
Specific venting standards and material requirements for Canadian installations.
General guidance on assembling venting systems and material compatibility.
Guidelines for determining appropriate locations for vent terminations.
Guidance on sizing vent and combustion air pipes based on furnace input and vent length.
Steps to calculate total equivalent vent length considering elbows and pipe length.
Specific considerations for using polypropylene venting systems, including equivalent lengths.
Hazard of CO poisoning if blower compartment is not sealed properly.
Steps for installing the vent pipe adapter and coupling.
Requirements for vent pipe terminations on roofs, including flashing.
Installation of concentric vent terminations on walls or roofs.
Installation of two-pipe and single-pipe vent terminations.
Instructions for priming the condensate trap to ensure proper operation and prevent CO release.
Procedures for adjusting gas input rate, manifold pressure, and altitude derating.
Steps to measure and adjust the temperature rise for proper furnace operation.
Procedures for checking critical safety controls like limit switches and pressure switches.
Procedure for running a self-test of furnace components for diagnostics.
Diagnostic steps for identifying and resolving furnace operational issues based on status codes.
Routine maintenance tasks to ensure furnace performance and longevity.
Procedures for cleaning and maintaining the blower motor and wheel.
Instructions for cleaning primary heat exchangers, with notes on replacement.
Procedures for preparing the furnace for cold weather to prevent freezing damage.
Step-by-step operation sequence for the heating mode.
Step-by-step operation sequence for the cooling mode.
Operation sequence for running the blower continuously.
Explanation of the furnace model numbering system.
