Danby Millenium DDR408H Dehumidifier Manual

The Danby Millenium DDR408H is a high-capacity dehumidifier designed for residential and light commercial use, featuring a 40-pint per day moisture removal capacity, electronic controls with digital display, auto-restart function, continuous drain option, washable air filter, adjustable humidity control, 24-hour timer, and energy-efficient operation. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Electronic control panel with digital display, Water collection bucket with full indicator, Continuous drain port, Washable air filter, Casters for mobility, Handle for transport.

Installation

Unpack and inspect contents. Place on level surface.

1. Remove packaging materials and protective tape from unit.
2. Position dehumidifier: Place on firm, level floor at least 12 inches from walls and furniture for proper airflow.
3. Install air filter: Ensure washable filter is properly seated in front grille.
4. Check drainage: Decide between bucket collection or continuous drain setup.
5. Plug into dedicated 115V AC power outlet.

WARNING! Do not operate in temperatures below 41°F (5°C). Ensure adequate ventilation around unit.

First-Time Setup

Power on dehumidifier; configure initial settings.

1. Set desired humidity: Press HUMIDITY button to select between 35% and 85% RH.
2. Select fan speed: Choose between HIGH and LOW fan settings.
3. Program timer (optional): Set 24-hour on/off schedule using TIMER buttons.
4. Test operation: Allow unit to run for 15 minutes to verify proper cooling and condensation.
5. Check drainage: Verify bucket is properly inserted or continuous drain hose is connected securely.

CAUTION! Always handle with dry hands. Do not block air intake or exhaust grilles.

Specifications

• Model: DDR408H Millenium Series
• Capacity: 40 pints per day (at 80°F, 60% RH)
• Power Supply: 115V AC, 60Hz, 4.5A
• Water Tank Capacity: 2.0 gallons (7.6 liters)
• Operating Conditions: 41°F to 95°F (5°C to 35°C)
• Air Flow: 165 CFM at high speed
• Refrigerant: R410A
• Noise Level: ≤ 52 dB(A)
• Dimensions: 15.4" W × 11.4" D × 24.2" H
• Weight: 41.9 lbs
• Certifications: ETL Listed, Energy Star Certified

Controls and Settings

Access functions via electronic control panel. Front Panel: POWER button, HUMIDITY control, FAN speed (HIGH/LOW), TIMER settings, FILTER indicator, BUCKET FULL indicator.

Display Indicators: Current humidity, Set humidity, Timer status, Filter alert, Bucket full warning, Defrost mode.

Humidity Control: Adjust between 35% and 85% in 5% increments. Fan Speed: HIGH for maximum moisture removal, LOW for quiet operation. Timer: Program on/off cycles in 1-hour increments up to 24 hours. Auto-Restart: Unit resumes previous settings after power restoration. Auto-Defrost: Automatically activates when coil temperature drops below freezing point.

Connecting Drainage

Two drainage options: Water bucket collection or continuous drain hose.

1. Bucket collection: Insert empty bucket until it clicks into place. Empty when FULL indicator lights.
2. Continuous drain: Remove bucket, attach 5/8" ID garden hose to drain port at rear. Route hose to floor drain or suitable outlet.
3. Gravity drainage: Ensure hose runs downward without kinks or loops for proper water flow.

Tip: For continuous operation, use continuous drain option. Check hose regularly for obstructions.

Operation Modes

Multiple operating modes for different needs.

1. Normal dehumidification: Set desired humidity level; unit cycles on/off automatically.
2. Continuous mode: Set humidity to lowest setting (35%) for maximum moisture removal.
3. Fan only mode: Press FAN button to circulate air without dehumidifying.
4. Timer operation: Program unit to start/stop at specific times using 24-hour timer.
5. Auto-defrost mode: Automatically activates in low-temperature conditions; compressor pauses while fan continues running.

WARNING! Do not operate in enclosed spaces without ventilation. Allow warm air to dissipate from exhaust.

Maintenance

Regular maintenance ensures optimal performance and longevity.

Care & Cleaning

Unplug before cleaning. Use only mild, non-abrasive cleaners.

1. Exterior cleaning: Wipe cabinet with soft, damp cloth. Dry immediately.
2. Air filter: Remove filter, wash under lukewarm water with mild detergent. Rinse thoroughly and air dry completely before reinstalling.
3. Water bucket: Empty regularly, wash with mild soap solution, rinse thoroughly.
4. Grille and vents: Use vacuum with brush attachment to remove dust from air intake and exhaust grilles.

CAUTION! Never immerse unit in water. Do not use gasoline, thinners, or abrasive cleaners.

Regulatory Information

ETL Listed: Conforms to UL standard 474. Energy Star Certified: Meets energy efficiency guidelines. FCC Part 15: Class B digital device; complies with interference limits for residential use. Refrigerant: Contains R410A. For disposal, consult local regulations. Copyright © Danby Products Inc. For support, visit www.danby.com or contact 1-800-263-2629.

Troubleshooting

Reset: Unplug for 10 minutes to reset electronic controls.

Service: 1-800-263-2629; www.danby.com