Honeywell Humidifier Enviracaire ECM-250i Manual

The Honeywell Humidifier Enviracaire ECM-250i is a high-performance evaporative humidifier designed for large rooms up to 2500 sq. ft. It features a digital humidistat, three fan speeds, a refill indicator, a permanent ceramic filter, antimicrobial treatment, a 2.5-gallon water tank, and a programmable timer. Powered by 120V AC, 60Hz. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Digital Control Panel, Permanent Ceramic Filter, 2.5-Gallon Removable Water Tank, Humidistat, Three Fan Speeds (Low, Medium, High), Refill Indicator Light, Programmable Timer, Antimicrobial Treatment.

Installation

Unpack and inspect contents. Place on a flat, stable, level surface away from walls and furniture for proper airflow.

1. Remove all packaging materials from the humidifier and filter.
2. Install the filter: Remove the filter from its bag and insert it into the filter frame, ensuring it is seated properly.
3. Fill the water tank: Remove the tank, flip open the fill cap, fill with cool, clean tap water (do not use hot water or additives). Close cap securely.
4. Place the tank: Carefully place the filled tank back onto the base, ensuring it clicks into place.
5. Plug into a 120V AC outlet.

WARNING! Use only on a level, waterproof surface. Do not place on carpets or uneven surfaces. Keep cord away from heated surfaces.

First-Time Setup

Plug in the unit; the digital display will illuminate.

1. Set desired humidity: Press the HUMIDITY button to set your target relative humidity (30%-60% is recommended).
2. Select fan speed: Press the FAN button to cycle through Low, Medium, and High speeds.
3. Set the timer (optional): Press the TIMER button to select 2, 4, 8, or 12 hours of operation. The unit will automatically shut off when the timer expires.
4. Allow the filter to fully saturate with water (may take 15-20 minutes) before expecting full output.

CAUTION! Always use two hands when carrying the filled water tank. Do not overfill.

Specifications

• Coverage Area: Up to 2500 square feet.
• Water Tank Capacity: 2.5 gallons (9.5 liters).
• Output: Up to 2.5 gallons per day (depending on fan speed and room conditions).
• Humidistat Range: 30% to 60% Relative Humidity (RH).
• Fan Speeds: 3 (Low, Medium, High).
• Filter Type: Permanent, cleanable ceramic wick with antimicrobial treatment.
• Timer Settings: 2, 4, 8, 12 hours.
• Power Source: 120V AC, 60Hz.
• Unit Dimensions (LxWxH): Approx. 16.5" x 11.5" x 21.5".
• Weight (Empty): 12 lbs.

Controls and Settings

Access all functions via the digital control panel on the front of the unit.

Control Panel Buttons: POWER (On/Off), HUMIDITY (Set Target RH), FAN (Cycle Speed), TIMER (Set Auto-Off), FILTER RESET (After cleaning).

Display Icons: Current Room Humidity, Set Humidity, Fan Speed Indicator (1,2,3), Timer Indicator, Refill Tank Indicator, Filter Clean Indicator.

Operation Modes: Auto Mode (humidistat controls fan to maintain set point), Manual Mode (fan runs continuously at selected speed).

Operation

For optimal performance, place the humidifier centrally in the room, at least 12 inches from walls.

1. Power On: Press POWER. The display will show current room humidity.
2. Set Humidity: Press HUMIDITY until desired %RH is displayed. The unit will cycle on/off to maintain this level.
3. Adjust Fan: Press FAN to select output intensity. High for rapid humidification, Low for quiet nighttime operation.
4. Using the Timer: Press TIMER to set auto-off. Useful for bedrooms.
5. Refilling: When the REFILL light illuminates, turn off the unit, remove the tank, refill with cool water, and replace.

Tip: Use distilled or demineralized water in areas with hard water to minimize white dust and scale buildup.

Maintenance & Cleaning

Regular cleaning is essential for performance and hygiene. Unplug the unit before any maintenance.

1. Daily: Check and refill the water tank as needed. Never let the unit run dry.
2. Weekly Cleaning: Empty any remaining water from the base. Wipe the base and tank interior with a soft, damp cloth. Do not immerse the base in water.
3. Filter Cleaning (Every 1-2 weeks): Remove the filter. Rinse it thoroughly under cool running water to remove mineral deposits. Gently shake off excess water. Let it air dry completely before reinstalling. Press and hold the FILTER RESET button for 3 seconds after cleaning.
4. Deep Cleaning (Monthly): Use a solution of 1 cup white vinegar and 1 gallon water to soak the filter for 20 minutes to dissolve hard scale. Rinse thoroughly. Clean the tank and base with a mild detergent solution, then rinse.

WARNING! Never use bleach, abrasive cleaners, or detergents not intended for humidifiers. Do not operate without the filter installed.

Filter Replacement

The ceramic filter is permanent but may need replacement if it becomes damaged or excessively clogged beyond cleaning.

1. Order replacement filter: Honeywell Part # HTM-250.
2. Unplug the unit and remove the water tank.
3. Remove the old filter from the frame.
4. Insert the new filter into the frame, ensuring it is fully seated.
5. Reinstall the frame, replace the tank, and plug in the unit.
6. Press and hold the FILTER RESET button to reset the maintenance indicator.

CAUTION! Use only genuine Honeywell replacement filters for optimal performance and safety.

Care & Storage

When not in use for extended periods (e.g., summer months), prepare the unit for storage.

1. Unplug the unit.
2. Empty and thoroughly dry the water tank and base.
3. Remove, clean, and allow the filter to dry completely.
4. Store the filter separately in its original bag or a plastic bag.
5. Store the unit in a cool, dry place, protected from dust.

CAUTION! Never store the unit with water in the tank or base, as this can lead to mold and mildew.

Regulatory Information

This device complies with Part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Copyright © Honeywell International Inc. Honeywell and Enviracaire are trademarks of Honeywell International Inc. For support, visit www.honeywellhumidifiers.com or contact 1-800-332-1110.

Troubleshooting

Reset: Unplug unit for 5 minutes to reset electronic controls.

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