Honeywell Furnace Humidifier Manual

The Honeywell Furnace Humidifier is a whole-home humidification system designed to work with your existing furnace to maintain optimal indoor humidity levels. It features automatic humidity control, easy installation, digital display, manual bypass control, water panel replacement indicator, and compatibility with most forced-air heating systems. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Humidifier unit, Digital control panel, Water panel, Bypass damper, Drain hose, Installation accessories.

Installation

Unpack and inspect all components. Ensure proper location on furnace return or supply duct.

1. Mount humidifier: Attach mounting bracket to furnace duct using provided hardware.
2. Connect water supply: Install saddle valve on cold water line; connect to humidifier inlet.
3. Connect drain hose: Route to floor drain or utility sink.
4. Wire to furnace: Connect humidifier to furnace control board or 24V transformer.
5. Install bypass duct: Connect between supply and return ducts if required.

WARNING! Turn off power to furnace before installation. Ensure all connections are water-tight.

First-Time Setup

Power on humidifier; follow initial setup procedure.

1. Set desired humidity: Use digital control to set target humidity level (30-45% recommended).
2. Calibrate humidity sensor: Allow 24 hours for accurate reading adjustment.
3. Test operation: Run furnace to verify humidifier activates properly.
4. Adjust bypass damper: Set for optimal airflow through humidifier.
5. Check for leaks: Verify all water connections are secure.

CAUTION! Do not set humidity too high to prevent condensation on windows.

Specifications

• Coverage Area: Up to 4,000 square feet
• Humidity Output: Up to 18 gallons per day
• Control Type: Digital automatic with manual override
• Power Requirements: 24V AC from furnace transformer
• Water Connection: 1/4" compression fitting
• Drain Connection: 5/8" ID hose
• Dimensions: 16" x 10" x 8"
• Weight: 12 lbs
• Operating Temperature: 40°F to 120°F
• Warranty: 5-year limited warranty

Controls and Settings

Access settings via digital control panel. Main controls: POWER, HUMIDITY SET, FAN CONTROL, MANUAL OVERRIDE.

Digital Display: Current humidity, Set humidity, System status, Water panel indicator.

Humidity Settings: Adjust between 15-60% relative humidity. Fan Control: AUTO (runs with furnace) or ON (continuous operation). Manual Override: Force humidifier operation regardless of humidity level. System Reset: Restore factory default settings.

Connecting to HVAC System

Proper integration with furnace system is critical for optimal performance.

1. Electrical connection: Connect to furnace 24V terminals or separate transformer.
2. Bypass duct installation: Required for most installations between supply and return.
3. Water line connection: Use copper or plastic tubing from cold water supply.
4. Drain line routing: Ensure proper slope for water drainage.
5. Test integration: Verify humidifier activates when furnace runs.

Tip: Install humidifier on return duct for best performance and easier maintenance.

Operation and Maintenance

Automatic operation with seasonal adjustment recommendations.

1. Winter operation: Set humidity to 30-40% for optimal comfort and condensation prevention.
2. Summer operation: Lower humidity setting or turn off during cooling season.
3. Regular inspection: Check monthly for proper operation and water flow.
4. Seasonal startup: Flush system before heating season begins.
5. Performance monitoring: Watch for changes in humidity levels indicating maintenance needs.

WARNING! Always turn off power and water supply before performing maintenance.

Water Panel Replacement

Replace water panel annually or when indicator light activates.

1. Turn off power and water supply to humidifier.
2. Remove front cover to access water panel compartment.
3. Remove old water panel and discard properly.
4. Clean water distribution tray and drain area.
5. Install new water panel, ensuring proper orientation.
6. Reassemble unit and restore power and water.
7. Reset water panel indicator on control panel.

Note: Use only genuine Honeywell replacement water panels for optimal performance.

Care & Cleaning

Annual cleaning recommended to maintain efficiency and prevent mineral buildup.

Turn off power and water. Remove and clean water distribution tray. Flush drain line with vinegar solution to remove scale. Clean humidifier cabinet with mild detergent. Inspect and clean bypass damper if installed.

CAUTION! Never use harsh chemicals or abrasive cleaners that could damage components.

Regulatory Information

UL Listed for safety standards. CSA certified for Canadian market. Meets EPA WaterSense criteria for water efficiency. Manufactured to ISO 9001 quality standards. Copyright © 2024 Honeywell International Inc. For technical support, visit www.honeywellhome.com or contact 1-800-468-1502.

Troubleshooting

Reset: Turn off power for 30 seconds, then restore to reset control board.

Service: 1-800-468-1502; www.honeywellhome.com