Honeywell Humidifier HCM-890LTG Manual

The Honeywell HCM-890LTG is a 2-gallon cool mist humidifier designed for medium to large rooms up to 500 sq. ft. It features a wicking filter system, adjustable humidity control, a refill indicator light, a 24-hour timer, an auto-shutoff function when empty, and a quiet operation mode. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Water tank, base with wicking filter, control panel, humidistat, refill indicator, timer, and power adapter.

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 humidifier and filter.
2. Install the wicking filter: Soak in cool water for 15 minutes, then insert into the filter frame in the base.
3. Fill the water tank: Carry tank to sink, remove cap, fill with cool tap water, replace cap securely.
4. Place tank on base: Align tank with base and set down gently until it clicks into place.
5. Plug into a grounded 120V AC outlet.

WARNING! Use only cool tap water. Do not use hot water or additives. Ensure unit is on a flat, waterproof surface.

First-Time Use

Power on the humidifier; the display will illuminate.

1. Set desired humidity: Press HUMIDITY button to adjust set point (30%-60% recommended).
2. Select fan speed: Press SPEED for High, Medium, Low, or Quiet mode.
3. Set timer (optional): Press TIMER to program automatic shut-off in 1-24 hour increments.
4. Monitor operation: The display shows current room humidity and settings.

CAUTION! Do not operate without water or without the filter properly installed. Keep out of reach of children.

Specifications

• Model: HCM-890LTG
• Tank Capacity: 2 gallons (7.6 L)
• Coverage Area: Up to 500 sq. ft.
• Output: Up to 1.2 gallons per day (24 hours)
• Humidistat: Digital, adjustable 30%-60% RH
• Timer: 24-hour programmable
• Noise Level: ≤ 35 dB in Quiet mode
• Power Consumption: 35W (max)
• Power Source: 120V AC, 60Hz
• Dimensions (HxWxD): 18.5" x 13.8" x 10.2"
• Weight (empty): 8.8 lbs

Controls and Settings

Control Panel: POWER, HUMIDITY (+/-), SPEED (High/Med/Low/Quiet), TIMER (1-24H), FILTER RESET indicator.

Display: Shows set humidity, current room humidity, timer status, fan speed, and refill indicator.

Humidity Control: Set desired level (30%-60%). The unit will cycle on/off to maintain set point. Fan Speed: High for maximum output, Medium for balanced, Low for energy saving, Quiet for nighttime. Timer: Set automatic shut-off from 1 to 24 hours. Filter Reset: LED illuminates when filter needs replacement (after approx. 1-2 months).

Operation Modes

Auto Mode: Unit runs based on humidistat setting to maintain desired humidity. Manual Mode: Set fan speed independently of humidity reading. Quiet Mode: Reduces fan speed for minimal noise. Timer Mode: Automatically turns unit off after set period.

1. For continuous operation: Set humidity to desired level, select fan speed, and leave timer off.
2. For nighttime: Use Quiet mode and set timer for 8 hours if desired.
3. For dry days: Use High speed and set humidity to 50-60%.

Tip: Ideal indoor humidity is 40-50%. Use a hygrometer to monitor room conditions.

Maintenance & Cleaning

Regular cleaning prevents mold and mineral buildup.

1. Daily: Refill tank as needed when refill light illuminates.
2. Weekly: Unplug, remove tank and filter. Clean tank with mild soap and water; rinse thoroughly.
3. Monthly: Deep clean base with vinegar solution (1 part white vinegar to 3 parts water) to remove scale.
4. As needed: Replace wicking filter every 1-2 months or when discolored/mineralized.

WARNING! Always unplug before cleaning. Never immerse base in water. Dry all parts completely before reassembly.

Filter Replacement

Replace wicking filter every 1-2 months for optimal performance.

1. Unplug unit and remove water tank.
2. Remove old filter from frame in base.
3. Soak new filter in cool water for 15 minutes.
4. Insert new filter into frame, ensuring it sits flat.
5. Press and hold FILTER RESET button for 3 seconds to reset indicator.
6. Reassemble tank and plug in.

Note: Use only genuine Honeywell HCM-890 series replacement filters.

Care & Storage

When not in use for extended periods, prepare unit for storage.

1. Unplug and empty all water from tank and base.
2. Clean thoroughly as per monthly cleaning instructions.
3. Allow all parts to air dry completely for 24 hours.
4. Remove and discard old filter.
5. Store unit in original box or cover in a cool, dry place.
6. Do not store with water in tank or with wet filter.

CAUTION! Never store with water inside to prevent mold and bacterial growth.

Regulatory Information

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

Troubleshooting

Reset: Unplug for 5 minutes to reset electronic controls.

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