Honeywell Humidifier HEV685B Manual

The Honeywell HEV685B is a high-performance evaporative humidifier designed for large rooms up to 2300 sq. ft. It features a 1.6-gallon tank capacity, three fan speeds (High, Medium, Low), an easy-to-clean design with antimicrobial treatment, a programmable humidistat with auto shut-off, a refill indicator light, a wick filter system, and a quiet operation mode. Below are key sections for safety, features, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Main unit with water tank, Control panel, Wick filter, Humidistat, Refill indicator, Power cord.

Installation & Setup

Unpack and inspect all components. Place on a level, stable surface away from direct sunlight and heat sources.

1. Remove all packaging materials from the unit and tank.
2. Install the wick filter: Remove from packaging and insert into the filter slot in the base.
3. Fill the water tank: Carry to sink, remove cap, fill with cool tap water, replace cap securely.
4. Place tank on base: Align tank with base and press down until it clicks into place.
5. Plug into a 120V AC outlet.

WARNING! Do not operate without water in the tank. Always use two hands when carrying filled tank to prevent spills.

First-Time Use

Power on the humidifier; set initial preferences.

1. Press POWER button to turn unit on.
2. Set fan speed: Use FAN button to cycle through High, Medium, Low.
3. Set desired humidity: Use HUMIDISTAT buttons (UP/DOWN) to set target humidity (30-60% recommended).
4. Enable Quiet Mode: Press QUIET button for nighttime operation (optional).
5. Allow 15-20 minutes for humidity to begin rising.

CAUTION! Place on a waterproof mat or towel if on sensitive flooring. Keep at least 6 inches from walls for proper airflow.

Specifications

• Model: HEV685B
• Tank Capacity: 1.6 gallons (6 liters)
• Coverage Area: Up to 2300 sq. ft.
• Output: Up to 2.3 gallons per day (maximum)
• Humidistat Range: 30% to 60% relative humidity
• Fan Speeds: 3 (High, Medium, Low)
• Noise Level: ≤ 40 dB on Quiet mode
• Power: 120V AC, 60Hz, 45W
• Dimensions (HxWxD): 18.5" x 14.2" x 11.8"
• Weight (empty): 8.8 lbs
• Filter Type: Evaporative wick (replace every 1-3 months)

Controls and Settings

Control Panel: POWER, FAN (speed), HUMIDISTAT UP/DOWN, QUIET MODE, RESET FILTER indicator.

Indicator Lights: Power (green), Refill (red), Filter Reset (amber).

Fan Speed: High for quick humidity boost, Medium for normal operation, Low for continuous maintenance. Humidistat: Set desired humidity level; unit will cycle on/off automatically to maintain. Quiet Mode: Reduces fan speed to minimum for ultra-quiet operation. Auto Shut-Off: Activates when tank is empty or desired humidity is reached.

Operation Modes

Normal Mode: Set fan speed and humidistat as desired. Quiet Mode: For bedrooms, offices. Boost Mode: Use High fan speed for rapid humidification.

1. Select mode via FAN button and HUMIDISTAT.
2. Monitor humidity via built-in hygrometer (displayed on some models).
3. Refill when red indicator lights.

Tip: Ideal indoor humidity is 30-50%. Use a separate hygrometer for accurate room measurement.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

1. Unplug unit and remove water tank.
2. Empty any remaining water from base.
3. Clean tank: Use mild soap and warm water; rinse thoroughly.
4. Clean base: Wipe with damp cloth; use vinegar solution for mineral deposits (1 part vinegar to 3 parts water).
5. Dry all parts completely before reassembly.
6. Clean every 1-2 weeks during use.

WARNING! Never immerse base in water. Do not use harsh chemicals, bleach, or abrasive cleaners.

Filter Replacement

Replace wick filter every 1-3 months depending on water hardness and usage.

1. Unplug unit and remove tank.
2. Remove old filter from base slot.
3. Insert new filter (model HWF-HEV685B).
4. Press FILTER RESET button on control panel to reset indicator.
5. Reassemble and refill with water.

Note: Use only genuine Honeywell replacement filters for optimal performance.

Safety Information

Read all instructions before use. Keep away from children. Do not operate with damaged cord or plug. Use only with 120V outlet. Do not add essential oils or chemicals to water tank. Place on level, stable surface. Unplug before cleaning or maintenance.

CAUTION! Risk of electric shock if unit is exposed to water or moisture during servicing. Do not attempt to repair unit yourself.

Regulatory Information

FCC Part 15: Class B digital device; complies with interference limits for residential use. Copyright © Honeywell International Inc. ETL listed. For support, visit www.honeywellhumidifiers.com or contact 1-800-332-1110.

Troubleshooting

Reset: Unplug for 60 seconds, then restart.

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