Rheem Prestige Furnace Manual

The Rheem Prestige Furnace is a high-efficiency gas furnace featuring advanced modulating technology, variable-speed blower motor, quiet operation, diagnostic LED system, durable heat exchanger construction, multiple venting options, integrated condensate management, and compatibility with smart thermostats. Designed for residential heating applications with AFUE ratings up to 98%. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation Requirements 3. First-Time Setup 4. Technical Specifications 5. Controls and Operation 6. Venting and Combustion Air 7. Maintenance Procedures 8. Diagnostic Codes 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Modulating gas valve, variable-speed ECM blower, aluminum-silicon heat exchanger, integrated control board, pressure switches, flame sensor, igniter, condensate drain system.

Feature	Description
Modulating Gas Valve	Precise heat output adjustment from 40% to 100% capacity
Variable-Speed Blower	ECM motor for quiet operation and optimal airflow
Heat Exchanger	Durable aluminum-silicon construction with lifetime warranty
Diagnostic LED	Status and error code display on control board
Smart Thermostat Compatible	Works with Rheem EcoNet and other communicating thermostats
Quiet Operation	Sound-absorbing insulation and vibration isolation
Multiple Venting Options	PVC, CPVC, or ABS vent pipe compatibility
Condensate Management	Integrated neutralizer and drainage system
Pressure Switches	Safety verification of proper venting and airflow
Flame Sensor	Continuous flame detection for safety shutdown

Installation Requirements

Professional installation required. Verify local codes and obtain permits.

Location: Install in conditioned space with adequate clearance for service access.
Venting: Follow manufacturer specifications for vent pipe size and routing.
Gas Supply: Proper gas line sizing with sediment trap and shutoff valve.
Electrical: 120V AC power supply with proper grounding and disconnect.
Drainage: Condensate line with proper slope and neutralizer if required.
Combustion Air: Ensure adequate fresh air supply per local codes.

WARNING! Gas appliances can produce carbon monoxide. Proper installation and venting are critical for safety. Only qualified technicians should install this equipment.

First-Time Setup

Initial startup must be performed by qualified technician.

System Check: Verify all connections, gas pressure, electrical wiring.
Venting Verification: Confirm proper draft and combustion air supply.
Control Setup: Configure dip switches for proper operation with thermostat.
Test Operation: Run through complete heating cycle and verify operation.
Customer Orientation: Explain basic operation and maintenance requirements.

CAUTION! Never operate furnace without proper venting. Ensure gas connections are leak-free before startup.

Technical Specifications

AFUE Rating: Up to 98% efficiency
Heating Capacity: 40,000 to 120,000 BTU/hr models available
Gas Type: Natural gas or LP (conversion kit required)
Electrical: 120V AC, 60Hz, 5-8 amps depending on model
Blower Motor: Variable-speed ECM, 1/3 to 1/2 HP
Sound Rating: As low as 65 dBA
Venting: 2" or 3" PVC/CPVC/ABS
Dimensions: Varies by model (typically 45-55" H x 17-21" W x 26-32" D)
Warranty: Lifetime heat exchanger, 10-year parts

Controls and Operation

Integrated control board manages all furnace functions with LED status indicators.

Thermostat Operation: Compatible with single-stage, two-stage, and modulating thermostats. For optimal performance, use Rheem EcoNet communicating thermostat.

Control Board Functions: LED status light (steady = normal operation, flashing = error code), dip switch settings for blower timing and thermostat compatibility, manual reset button for lockout conditions.

Operating Modes: Heating cycle, blower delay, continuous fan operation, system shutdown for safety conditions.

Venting and Combustion Air

Direct vent or conventional venting options available.

Direct Vent: Sealed combustion with separate intake and exhaust pipes.
Conventional Vent: Uses indoor air for combustion with single exhaust pipe.
Pipe Requirements: Schedule 40 PVC, CPVC, or ABS meeting local codes.
Clearances: Maintain proper clearance to combustible materials.
Termination: Follow manufacturer specifications for vent termination location.

Tip: Regular inspection of vent system is essential for safe operation.

Maintenance Procedures

Annual professional maintenance recommended for optimal performance and safety.

Air Filter: Replace every 1-3 months depending on usage and environment.
Heat Exchanger: Professional inspection for cracks or corrosion annually.
Blower Assembly: Clean blower wheel and housing annually.
Flame Sensor: Clean with emery cloth during annual maintenance.
Condensate System: Flush and clean drain lines and neutralizer.
Venting: Inspect for obstructions and proper drainage.
Gas Pressure: Verify proper manifold pressure during service.

WARNING! Turn off electrical power and gas supply before performing any maintenance. Only qualified technicians should service gas components.

Diagnostic Codes

LED flash codes indicate system status and fault conditions.

Flash Pattern	Description	Action Required
1 Flash	Pressure switch stuck closed	Check venting and pressure switch
2 Flashes	Pressure switch stuck open	Check venting and inducer motor
3 Flashes	Ignition failure	Check gas supply and igniter
4 Flashes	Flame sensed with gas valve off	Check gas valve and control board
5 Flashes	Rollout switch tripped	Check heat exchanger and airflow
6 Flashes	Limit circuit fault	Check airflow and filters
7 Flashes	Blower fault	Check blower motor and capacitor

Care & Cleaning

Regular maintenance ensures optimal performance and longevity.

Monthly: Check and replace air filter as needed. Keep area around furnace clean and unobstructed.

Annual Professional Service: Complete system inspection, cleaning, and adjustment.

CAUTION! Never use water or cleaning chemicals on electrical components. Keep combustion air intake clear of debris.

Regulatory Information

ANSI Z21.47: Certified for safety standards. CSA International: Approved for US and Canadian markets. Energy Star: Qualified for high efficiency ratings. For technical support, contact Rheem Customer Service at 1-800-432-8373 or visit www.rheem.com. Installation must comply with National Fuel Gas Code (NFPA 54) and local building codes.

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, igniter, flame sensor	Verify gas valve on, check for spark, clean flame sensor
Short cycling	Dirty filter, airflow restriction	Replace filter, check vents and registers
Blower won't stop	Thermostat fan setting	Check thermostat fan setting (auto vs on)
Unusual noises	Blower, inducer motor, ductwork	Inspect blower wheel, motor bearings, duct connections
Error code flashing	System fault	Refer to diagnostic code chart and contact technician

Reset Procedure: Turn thermostat to off, turn off power at disconnect, wait 60 seconds, restore power, turn thermostat to heat.

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