Honeywell DH45W Dehumidifier Manual

The Honeywell DH45W is a high-capacity dehumidifier designed to remove up to 45 pints of moisture per day from your indoor air. It features digital humidity control, automatic shut-off, continuous drainage option, washable filter, and caster wheels for easy mobility. Ideal for basements, large rooms, and damp areas up to 3000 sq ft. Below are key sections for safety, features, installation, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Digital control panel, 45-pint moisture removal tank, washable air filter, caster wheels, continuous drain hose connection, full tank alert, and auto-defrost function.

Installation & Setup

Unpack and inspect contents. Place on level surface away from walls and furniture.

1. Remove packaging: Take off all tape and protective materials.
2. Position unit: Place on level floor with at least 12 inches clearance on all sides.
3. Install water tank: Slide empty tank into base until it clicks into place.
4. Connect power: Plug into grounded 120V AC outlet (do not use extension cord).
5. For continuous drainage: Attach hose to drain port (hose not included).

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

First-Time Operation

Power on dehumidifier; set desired humidity level.

1. Press POWER button to turn unit on.
2. Set humidity: Use UP/DOWN buttons to select desired RH level (40-50% recommended).
3. Select mode: Choose between Normal, Turbo, or Continuous operation.
4. Set timer: Press TIMER to program automatic shut-off (optional).
5. Monitor operation: Check that fan is running and air is being exhausted properly.

CAUTION! Do not block air intake or exhaust grilles. Keep children away from unit.

Specifications

• Model: DH45W
• Moisture Removal: 45 pints per day (at 80°F/60% RH)
• Coverage Area: Up to 3000 square feet
• Tank Capacity: 1.8 gallons (6.8 liters)
• Operating Temperature: 41°F to 95°F (5°C to 35°C)
• Humidity Range: 35% to 85% RH
• Power Consumption: 4.5 amps, 540 watts
• Voltage: 115V AC, 60Hz
• Noise Level: 51 dB on normal setting
• Dimensions: 15.4" W × 11.4" D × 23.6" H
• Weight: 41.9 lbs
• Refrigerant: R410A (eco-friendly)

Controls and Settings

Digital Control Panel: POWER, HUMIDITY SET, MODE, TIMER, FILTER RESET.

Display Indicators: Current humidity, Set humidity, Full tank alert, Filter clean reminder, Timer status, Mode indicator.

Humidity Control: Set between 35-85% RH in 5% increments. Modes: Normal (standard operation), Turbo (maximum moisture removal), Continuous (runs until tank is full). Timer: Program 1-24 hours for automatic shut-off. Filter Alert: Lights when filter needs cleaning (after 250 hours of operation).

Continuous Drainage

For unattended operation, connect hose to drain port.

1. Turn off and unplug unit.
2. Remove water tank from base.
3. Connect standard garden hose (¾" diameter, not included) to drain port.
4. Route hose to floor drain, sink, or sump pump.
5. Replace water tank (unit will not operate without tank in place).
6. Plug in and turn on; unit will now drain continuously.

Tip: Ensure hose has downward slope to prevent water backup.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and longevity.

1. Empty water tank: When FULL indicator lights, remove and empty tank.
2. Clean filter: Remove and wash filter every 2-4 weeks with warm water and mild detergent.
3. Clean exterior: Wipe with damp cloth; do not use chemicals or abrasives.
4. Clean coils: Use soft brush to remove dust from rear coils every 3 months.
5. Reset filter indicator: Press FILTER RESET after cleaning filter.
6. End-of-season cleaning: Thoroughly clean and dry before storage.

WARNING! Always unplug before cleaning. Never immerse unit in water.

Energy Saving Tips

Maximize efficiency while minimizing energy consumption.

• Set humidity to 50% for optimal comfort and efficiency.
• Use timer to run only during peak humidity hours.
• Keep doors and windows closed while unit is operating.
• Clean filter regularly to maintain airflow.
• Use in smallest possible space for fastest results.
• Consider continuous drainage to avoid frequent tank emptying.

Storage Instructions

Proper storage prevents damage during off-season periods.

1. Unplug unit and allow to sit upright for 24 hours.
2. Empty and clean water tank thoroughly.
3. Clean filter and let dry completely.
4. Clean exterior and coils with soft brush.
5. Coil drain hose (if attached) and store with unit.
6. Store in dry, covered area with temperature above 41°F.
7. Cover unit to prevent dust accumulation.

CAUTION! Store upright to prevent refrigerant oil migration.

Regulatory Information

UL Listed: Meets UL 474 safety standards. Energy Star: Meets EPA energy efficiency guidelines. FCC Part 15: Class B digital device compliant. California Proposition 65 Warning: This product may contain chemicals known to cause cancer or reproductive harm. For support, visit www.honeywellhome.com or contact 1-800-332-1110. Two-year limited warranty from date of purchase.

Troubleshooting

Reset: Unplug for 10 minutes to reset electronic controls.

Service: 1-800-332-1110; www.honeywellhome.com