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General| Brand | York |
|---|---|
| Model | DNH024 |
| Category | Air Conditioner |
| Language | English |
Important notes, cautions, and warnings for installers regarding safety and equipment protection.
Procedure for inspecting the unit for damage upon receipt.
Reference for obtaining replacement parts for the unit.
Details on design certifications and listings (CGA, AGA) for the unit.
Requirements for installation according to national and local safety codes.
Guidelines for selecting a suitable location for outdoor unit installation.
Specifies clearances needed for proper unit operation and servicing.
Instructions for adapting units to downflow, rear supply, and return air duct openings.
Importance of using and cleaning filters for unit efficiency and longevity.
Recommendations for installing a condensate trap and drain line.
Identification of removable panels for accessing serviceable components.
Guidance on optimal placement and wiring of the room thermostat.
Conformance requirements for field wiring, grounding, and branch circuits.
Guidance on proper gas piping sizing based on fuel flow and codes.
Instructions for connecting the gas supply line to the unit.
Step-by-step description of the unit's heating operation.
Step-by-step description of the unit's cooling operation.
How the circulating fan operates during different modes.
Essential checks to perform before starting the unit.
Instructions for safely operating the unit.
Procedure for shutting off the gas supply to the unit.
How to adjust the gas pressure regulator for proper burner operation.
Instructions for accessing and cleaning the unit's burners.
How to adjust the unit for the correct temperature rise.
Information on operating the multi-speed direct drive blower motor.
Procedure for verifying the unit's gas input rate.
Overview of routine maintenance activities.
Guidance on inspecting, cleaning, or replacing air filters.
Information on motor lubrication and maintenance requirements.
How to clean the outdoor coil to maintain performance.
Step-by-step instructions for cleaning the unit's burners.
How to inspect and clean the combustion air discharge outlet.
Procedure for cleaning internal flue passages and heating elements.
How to measure and adjust the unit's supply air cubic feet per minute (CFM).
Explanation of symbols and abbreviations used in wiring diagrams.
