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General| Brand | Johnson Controls |
|---|---|
| Model | RL18 |
| Category | Furnace |
| Language | English |
Details regarding product certifications and quality management systems.
Crucial warnings about installation, operation, and potential hazards.
Warnings about electrical safety, unauthorized modifications, and personal protective equipment.
Hazard warnings related to fire or explosion from improper installation or use.
Cautions regarding compliance with codes, clearances, and handling instructions.
Discussion of air quality requirements and contaminants affecting combustion.
Warnings about storage of flammable materials near the furnace and air quality.
Guidelines for general installation, referencing NFPA and CSA standards.
Codes and standards for combustion and ventilation air requirements.
Standards and guidelines for duct system design and installation.
Standards for acoustical lining and fibrous glass duct materials.
Codes and standards for gas piping installation and pressure testing.
National and Canadian electrical codes and safety standards.
Specific installation requirements for Massachusetts.
Mandatory requirements for installing carbon monoxide detectors.
Specifications for approved carbon monoxide detectors, including standards.
Requirement for specific signage indicating gas vent location.
Process for state or local gas inspector approval of installations.
Critical guidelines for furnace placement and required clearances.
Guidelines for installing the furnace in areas with potential freezing temperatures.
Required clearances for proper access to the furnace for servicing and maintenance.
Safety considerations for installing the furnace in a residential garage.
General information and requirements for duct system design and installation.
Cautionary note on installing the indoor coil in the supply air duct.
Procedure for connecting ductwork and supply plenum in upflow/horizontal configurations.
Procedure for installing floor base and ductwork in downflow configurations.
Details on furnace duct flange components and attachment.
Specific instructions for installing an indoor coil cabinet in downflow applications.
Diagrams showing vertical upflow and downflow furnace and coil installations.
Instructions for side return, bottom return, and attic installation configurations.
Procedures for downflow and horizontal furnace installations.
Details on required duct connectors for downflow installations.
Instructions for connecting the return air plenum in upflow configurations.
Methods for suspending the furnace or installing it in crawl spaces.
Diagram showing typical suspended furnace or crawl space installation.
Illustrations of furnace dimensions.
Table detailing cabinet and duct dimensions for various furnace models.
Instructions and requirements for installing furnace filters in various configurations.
Table specifying minimum filter sizes based on airflow and cabinet size.
Diagram showing cutout markings for side return filter installation.
Specific filter installation requirements for horizontal and downflow furnaces.
Safety warnings and precautions related to gas piping installation.
Step-by-step procedure for installing gas piping.
Diagrams of the gas valve and typical gas pipe arrangements.
Procedure for converting the furnace for propane (LP) gas, including warnings.
Procedure for converting the furnace for high altitude operation and relevant warnings.
Table showing nominal manifold pressures for natural gas and propane at various altitudes.
Procedure for converting the pressure switch for high altitude.
Guidelines for making field electrical connections, including data and cautions.
Instructions for making proper power supply connections.
Instructions for connecting thermostat and control wiring, with diagrams and notes.
Instructions for connecting optional furnace accessories like EAC and humidifier.
Information on operating two furnaces together, including wiring and safety.
Requirements for ductwork when twinning furnaces, including airflow considerations.
Details on vent connection sizing and conversion for horizontal/downflow.
Key operational parameter and requirements for Category I venting systems.
Guidelines for venting into existing chimneys, including restrictions.
Explanation of combustion air sources and system types.
Diagrams illustrating combustion airflow paths through the furnace.
Critical warnings about insufficient air supply and obstructions.
Component specifications and free area calculations for Canada.
Guidelines for air supply openings, ducts, and unconfined space requirements.
Requirements for obtaining combustion air from outdoors and ventilated spaces.
Procedure to ensure safe combustion and ventilation system operation.
Key steps for furnace start-up, leak checks, ignition sequence, and input calculation.
Procedure for removing NOx screens on specific models for LP gas.
Table showing gas rates for calculating furnace input based on time and dial size.
Procedures for measuring inlet and manifold gas pressures using a manometer.
Table detailing the acceptable inlet gas pressure ranges for natural gas and propane.
Table showing nominal manifold pressure values for natural gas and propane.
Guidance on optimizing furnace airflow for cooling, continuous fan, and heating.
Procedure for measuring and adjusting furnace temperature rise, including safety warnings.
Instructions for adjusting blower-off delay using dip switches and control board layout.
Table providing airflow data for various blower speeds and static pressures.
Information on the control circuit fuse and the blower door safety switch.
Description of rollout and pressure switches and their safety functions.
Explanation of limit controls, operational sequences, and blower modes.
Information about the hot surface ignition system and associated safety warnings.
Guidance on diagnosing and resolving furnace issues.
Explanation of diagnostic codes indicated by LED flashes for fault identification.
Details on diagnostic fault logic, lockouts, and retry operations.
Diagnostic codes related to low secondary voltage and thermostat wiring.
Explanation of soft and hard lockout conditions and their resets.
Normal flame sense current levels for ignition control.
Procedure for retrieving stored diagnostic fault codes using the control board.
List of available replacement parts for the furnace.
Information on how to obtain replacement parts and contact customer service.
Schematic illustrating the furnace's electrical connections and safety precautions.
Legend for electrical symbols used in the wiring diagram.
Fields for owner's details and furnace model/serial number information.
Checks for correct furnace configuration, accessories, and all system connections.
Specifications for B-vent and lined masonry chimney venting installations.
Verification of correct line voltage polarity, grounding, and low voltage wiring.
Fields for recording gas and air side settings and measurements.
Checklist for operational tests, cleanup, and owner education.
Checklist for educating the owner on furnace operation and maintenance.
