Williamson 5 in 1 Furnace Manual

The Williamson 5 in 1 Furnace is a high-efficiency heating system that combines five essential functions in one unit: heating, cooling, air purification, humidification, and ventilation. This multi-stage gas furnace features variable-speed blower technology, electronic ignition, and advanced diagnostic systems for optimal performance and energy efficiency. Below are key sections covering safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Multi-stage gas valve, variable-speed blower motor, electronic air cleaner, humidifier, heat exchanger, control board, and diagnostic LED.

Installation Requirements

Professional installation recommended. Ensure proper clearances and ventilation.

1. Location: Install in well-ventilated area with minimum clearances as specified.
2. Gas connection: Use approved gas piping and fittings; pressure test required.
3. Electrical: 120V AC power supply with proper grounding.
4. Venting: Properly sized vent pipes with correct slope and termination.
5. Drainage: Condensate drain line with trap and proper routing.

WARNING! Installation must comply with local codes and regulations. Gas work requires licensed professional.

First-Time Setup

Initial startup and configuration procedures.

1. Power on furnace: Turn on electrical power and gas supply.
2. Thermostat setup: Install compatible thermostat and configure settings.
3. System check: Verify proper ignition, airflow, and temperature rise.
4. Calibration: Allow system to complete initial calibration cycle.
5. Test modes: Verify heating, cooling, and auxiliary functions.

CAUTION! Only qualified technicians should perform initial startup and testing.

Technical Specifications

• Heating Capacity: 40,000-120,000 BTU/h (multiple models)
• AFUE Rating: Up to 98% efficiency
• Stages: 2-stage heating, variable-speed blower
• Voltage: 120V AC, 60Hz
• Gas Type: Natural gas or LP (conversion kit required)
• Pressure: Natural gas: 3.5" WC, LP: 10" WC
• Dimensions: Varies by model (check specific model label)
• Weight: 120-180 lbs depending on model
• Sound Level: As low as 65 dB in low-stage operation
• Warranty: 20-year heat exchanger, 10-year parts

Controls and Settings

Access control panel via front door. LED display shows status codes and settings.

Control Board: POWER switch, MODE selector (HEAT/COOL/OFF), FAN control (AUTO/ON), diagnostic LED, reset button.

Temperature Settings: Adjust via compatible thermostat. Blower Speed: Automatic adjustment based on mode and demand. Humidity Control: Set desired humidity level (30-60% recommended). Air Quality: Adjust electronic air cleaner settings. Ventilation: Program fresh air exchange cycles. Maintenance Alerts: Filter replacement, system check reminders.

Operating Instructions

Daily operation and seasonal adjustments.

1. Thermostat operation: Set desired temperature and mode.
2. Mode selection: Choose HEAT, COOL, or OFF as needed.
3. Fan control: AUTO for automatic operation, ON for continuous circulation.
4. Humidity adjustment: Set appropriate level for season and comfort.
5. Air quality: Monitor filter status and replace when indicated.

Tip: Keep thermostat away from heat sources and direct sunlight for accurate temperature reading.

Maintenance Procedures

Regular maintenance ensures optimal performance and longevity.

1. Monthly: Check filter condition, clean exterior surfaces.
2. Seasonal: Inspect burners, heat exchanger, and venting system.
3. Annual: Professional inspection and cleaning recommended.
4. Filter replacement: Replace every 1-3 months depending on usage.
5. Humidifier pad: Replace annually before heating season.
6. Drain system: Flush condensate drain line monthly during cooling season.
7. Blower cleaning: Clean blower assembly annually.
8. Electrical: Check connections and safety controls.

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

Safety Features

Multiple safety systems protect against hazardous conditions.

Care & Cleaning

Proper cleaning maintains efficiency and extends equipment life.

1. Exterior: Wipe with damp cloth; avoid harsh chemicals.
2. Filters: Replace regularly; vacuum reusable filters.
3. Burners: Professional cleaning only; do not attempt yourself.
4. Drain system: Flush with clean water to prevent clogs.
5. Venting: Inspect for obstructions; professional cleaning recommended.

CAUTION! Never operate furnace with access panels removed. Keep combustible materials away from unit.

Regulatory Information

UL certified and meets ANSI Z21.47 standards for gas-fired central furnaces. Complies with Department of Energy efficiency standards. Manufactured to meet or exceed industry safety requirements. For technical support or warranty service, contact Williamson Customer Service at 1-800-555-HEAT or visit www.williamsonfurnace.com.

Troubleshooting

Reset Procedure: Turn power off for 30 seconds, then restore.

Service: 1-800-555-HEAT; www.williamsonfurnace.com