Rheem Classic Super Quiet 80 Furnace Manual

The Rheem Classic Super Quiet 80 is a high-efficiency gas furnace designed for residential heating applications. Featuring 80% AFUE efficiency, quiet operation, durable heat exchanger construction, electronic ignition, multi-speed blower motor, and comprehensive safety controls. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Venting Requirements 7. Operating Instructions 8. Maintenance Procedures 9. Safety Information 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Durable aluminized steel heat exchanger, electronic hot surface ignition, multi-speed direct drive blower, integrated control board, pressure switches, flame sensor, and limit controls.

Feature	Description
AFUE Rating	80% Annual Fuel Utilization Efficiency
Heat Exchanger	Aluminized steel tubular design
Ignition System	Electronic hot surface ignition
Blower Motor	Multi-speed direct drive
Sound Rating	Super Quiet operation
Gas Valve	Automatic combination gas valve
Control Board	Integrated furnace control
Filter Size	Standard 1-inch or 4-inch media filter
Venting	Category I venting required
Safety Controls	Pressure switches, flame sensor, limit controls

Installation

Unpack and inspect all components. Ensure proper location with adequate clearance.

Position furnace: Level installation on combustible or non-combustible flooring.
Connect gas supply: Use black iron pipe with proper thread sealant.
Install venting: Category I venting with proper slope and termination.
Electrical connections: Connect 120V power supply and thermostat wiring.
Ductwork: Connect supply and return ducts securely.
Install filter: Proper size filter in filter rack.

WARNING! Installation must be performed by qualified HVAC technician. Gas connections require leak testing.

First-Time Setup

Initial startup and system verification procedures.

Verify installation: Check all connections, clearances, and venting.
Gas pressure check: Measure and adjust manifold gas pressure.
Blower speed: Set appropriate blower speed for heating mode.
Thermostat configuration: Program thermostat for heating operation.
Test sequence: Verify proper ignition, heating, and safety operation.

CAUTION! Only qualified technicians should perform startup procedures. Verify proper combustion before leaving job site.

Specifications

Model Series: Classic Super Quiet 80
AFUE: 80%
Input BTU/H: 40,000 - 120,000 (varies by model)
Output BTU/H: 32,000 - 96,000 (varies by model)
Gas Type: Natural Gas or LP (conversion kit required)
Electrical: 120V, 60Hz, 1 Phase
Blower Motor: Multi-speed PSC
Sound Level: Super Quiet operation
Warranty: 20-year heat exchanger limited warranty
Dimensions: Varies by model size

Controls and Settings

Integrated furnace control board manages all operations. Access door switch for service access.

Control Board: LED status lights for troubleshooting, dip switches for configuration.

Thermostat Connections: R (24V), W (Heat), G (Fan), C (Common). Blower Speeds: Adjustable for heating operation. Gas Valve: Manifold pressure adjustment. Limit Controls: Automatic high temperature protection. Pressure Switches: Verify proper venting operation.

Venting Requirements

Category I venting system required. Proper sizing and installation critical for safe operation.

Vent material: B-vent or listed venting material.
Vent sizing: According to furnace input and vent length.
Termination: Proper clearance from windows, doors, and air intakes.
Slope: Minimum 1/4 inch per foot upward toward termination.
Combustion air: Adequate combustion and ventilation air required.

Tip: Consult local codes and manufacturer guidelines for specific venting requirements.

Operating Instructions

Normal heating operation and thermostat usage.

Thermostat setting: Set to HEAT mode and desired temperature.
System startup: 30-60 second delay before ignition sequence begins.
Normal operation: Blower starts after heat exchanger warm-up period.
Cycle completion: System shuts down when thermostat satisfied.
Fan operation: AUTO or ON mode available at thermostat.

WARNING! Do not adjust gas valve or control settings. Contact qualified technician for service.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

Filter replacement: Monthly inspection, replace when dirty.
Annual inspection: Qualified technician should perform complete system check.
Heat exchanger: Visual inspection for cracks or damage.
Blower assembly: Clean blower wheel and housing annually.
Vent system: Inspect for obstructions or deterioration.
Burners: Clean and verify proper flame pattern.

CAUTION! Turn off power and gas supply before performing any maintenance.

Safety Information

Carbon monoxide detectors required in home. Never block vents or returns.

CAUTION! Gas furnaces produce carbon monoxide. Proper venting and maintenance critical for safety. Install CO detectors near sleeping areas.

Regulatory Information

ANSI Z21.47/CSA 2.3 certified. UL listed. Meets U.S. Department of Energy efficiency standards. Manufactured by Rheem Manufacturing Company. For technical support, contact 1-800-432-8373 or visit www.rheem.com.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Furnace won't start	Power, thermostat, door switch	Check circuit breaker, thermostat setting, door switch engagement.
No heat	Gas supply, ignition	Verify gas valve on, check for ignition attempts, call technician.
Blower won't stop	Thermostat fan setting	Check thermostat fan setting (AUTO/ON), limit switch.
Frequent cycling	Filter, thermostat location	Replace dirty filter, check thermostat location for drafts.
Error codes	Control board diagnostics	Count LED flashes, refer to diagnostic chart in manual.

Reset: Power cycle furnace at electrical disconnect.

Service: 1-800-432-8373; www.rheem.com