Luxaire Furnace Manual PDF

The Luxaire Furnace is a high-efficiency heating system designed for residential use, featuring advanced combustion technology, multiple heating stages, variable-speed blower motors, and smart thermostat compatibility. Available in various models with AFUE ratings up to 98%, these furnaces provide reliable heating with quiet operation and energy-saving features. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Heat exchanger, blower assembly, gas valve, ignition system, control board, air filter, venting system.

Installation Guidelines

Professional installation recommended. Unpack and inspect all components before beginning.

1. Location selection: Choose dry, level area with adequate clearance for service access.
2. Gas line connection: Use approved gas piping materials; pressure test before operation.
3. Electrical connection: 120VAC power supply with proper grounding.
4. Venting installation: Follow manufacturer specifications for vent pipe sizing and routing.
5. Ductwork connection: Ensure proper sizing and sealing of supply and return ducts.
6. Condensate drainage: Install condensate line with proper trap and routing.

WARNING! Gas furnaces produce carbon monoxide; proper venting is critical. Installation must comply with local codes.

First-Time Setup

Complete installation verification before initial startup.

1. Gas pressure adjustment: Set manifold pressure to specifications on rating plate.
2. Blower speed settings: Adjust dip switches for proper airflow.
3. Thermostat configuration: Connect compatible thermostat and set heating parameters.
4. System checkout: Verify proper ignition sequence and temperature rise.
5. Safety testing: Confirm operation of all safety controls and switches.

CAUTION! Only qualified technicians should perform startup procedures. Document all settings for future reference.

Technical Specifications

• Models: AC/DC series with varying BTU inputs
• AFUE Rating: Up to 98% efficiency
• Gas Type: Natural gas or propane (conversion kit required)
• Electrical: 120VAC, 60Hz, 15 amp circuit
• Temperature Rise: 35-65°F (adjustable)
• Static Pressure: Maximum 0.8 inches w.c.
• Venting: 2-3 inch PVC/CPVC depending on model
• Sound Rating: As low as 65 dBA
• Warranty: Limited lifetime heat exchanger, 10 years parts

Controls and Settings

Integrated control board with diagnostic capabilities and user-adjustable parameters.

Control Board Features: Status LED, dip switch settings, terminal connections for thermostat, pressure switch inputs, gas valve control.

User Settings: Blower speed (cooling/heating), fan on/off delays, thermostat type selection. Service Settings: Gas pressure adjustment, temperature rise measurement, ignition trial settings, lockout timing. Diagnostic Codes: Flash patterns indicate specific fault conditions for troubleshooting.

Venting and Combustion Air

Direct vent or conventional venting options available depending on model.

1. Direct vent systems: Use separate intake and exhaust pipes.
2. Conventional venting: Requires chimney and combustion air source.
3. Vent pipe requirements: Specific material and sizing based on installation.
4. Combustion air: Ensure adequate fresh air supply per local codes.
5. Vent termination: Maintain proper clearances from windows and openings.

Tip: Always follow manufacturer venting tables for pipe length and elbow limitations.

Operation Instructions

Normal operation sequence and user controls.

1. Thermostat call: Thermostat signals for heat when temperature drops below setpoint.
2. Pre-purge: Indoor blower operates briefly to clear combustion chamber.
3. Ignition sequence: Hot surface igniter glows, gas valve opens, burner ignition.
4. Proving period: Flame sensor confirms ignition; main blower starts after delay.
5. Running operation: Furnace operates until thermostat satisfaction.
6. Shutdown: Gas valve closes, blower continues for post-purge cooling.

WARNING! Never operate furnace without filter installed. Keep combustible materials away from furnace.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

1. Monthly: Check and replace air filter as needed.
2. Annual professional service: Clean heat exchanger, check burners, verify gas pressure.
3. Blower maintenance: Clean blower wheel and housing annually.
4. Drainage system: Clear condensate trap and line before heating season.
5. Electrical connections: Tighten all connections during annual maintenance.
6. Safety devices: Test limit switches and pressure switches for proper operation.

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

Safety Features

Multiple safety systems protect against hazardous conditions.

Regulatory Information

ANSI Z21.47/CSA 2.3: Certified for safety standards. UL listed components. Energy Star qualified models available. Manufactured to meet or exceed industry standards for residential gas furnaces. For technical support and warranty service, contact Luxaire at 1-800-XXX-XXXX or visit www.luxaire.com. Installation must comply with National Fuel Gas Code (NFPA 54) and local building codes.

Troubleshooting Guide

Reset Procedure: Turn power off for 30 seconds, then restore. If problem persists, call for service.

Emergency Service: 1-800-XXX-XXXX; www.luxaire.com