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Critical safety warnings regarding fire, explosion, electrical shock, and carbon monoxide poisoning hazards.
Cautionary note on furnace reliability issues due to improper installation or misapplication.
Warning about sharp edges on sheet metal parts during handling and servicing.
Overview of the furnace's multipoise, Category I fan-assisted design and factory configuration.
Safety warning about improper adjustment, alteration, service, or installation.
Guidance on following national codes like NFGC and installation standards for warm air heating.
References to NFGC and NFPA 90B for general installation requirements.
Reference to National Electrical Code (NEC) ANSI/NFPA 70-2008.
Reference to NFGC NFPA 54/ANSI Z223.1-2009 for venting requirements.
Caution on preventing premature component failure due to ESD.
Information on furnace multipoise configurations and required assembly.
Safety warning about corrosive air and contamination affecting furnace life.
Requirements for providing outdoor air for combustion and ventilation.
Guidelines for using indoor air for combustion based on space volume and infiltration rates.
Instructions for bottom and side return air inlets and leveling legs.
Requirements for downflow applications on combustible flooring with specific bases.
Guidelines for furnace placement, support, and roll-out protection in horizontal orientations.
Safety warnings for gas piping, leak testing, and purging.
Cautionary note about using backup wrenches to avoid damaging gas controls.
Safety warning regarding electrical shock hazards during installation.
Guidance on verifying voltage, frequency, phase, and NEC compliance.
Steps for connecting electrical wiring to the junction box.
Instructions for connecting accessories like Electronic Air Cleaners and Humidifiers.
Critical steps for safe venting operation to prevent CO poisoning.
Requirements for using masonry chimneys with CSA design-certified furnaces.
Follow safety codes for proper vent sizing and installation.
Warning about sharp edges on sheet metal parts during handling.
Caution regarding hot vent pipes and potential injury to children.
Initial checks including wiring, thermostat connections, gas pressure, and door installation.
Step-by-step guide to initiate furnace operation and component testing.
Procedures for setting gas input rate, temperature rise, and thermostat anticipator.
Guidance on servicing electrical controls, status codes, and wiring.
Routine maintenance tasks including cleaning filters and checking connections.
Instructions for cleaning and checking the blower motor and wheel.
Procedures for cleaning heat exchangers, noting when replacement is advised.
Detailed sequence for heating mode, including igniter and blower operation.
Sequence of operation for single-speed and two-speed cooling modes.
Operation of the blower in continuous mode and speed selection.
Operation sequence when installed with a heat pump system.
List of replacement parts for the furnace casing.
List of replacement parts for the electrical system.
List of replacement parts for the blower assembly.
List of replacement parts for the gas control system.
List of replacement parts for the heat exchanger assembly.
List of replacement parts for the inducer assembly.
Example showing how to identify the furnace model number for parts.
General
