Honeywell Humidifier 12 GPD Manual

The Honeywell Humidifier 12 GPD is a high-capacity humidification system designed to add moisture to dry indoor air, covering areas up to 1200 square feet. It features a 12-gallon-per-day output, digital humidistat control, automatic shut-off, easy-to-clean tank, wick filter system, and quiet operation. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. First-Time Setup 4. Specifications 5. Controls and Settings 6. Connecting to Water Source 7. Operation Modes 8. Maintenance & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Main humidifier unit, Water tank, Wick filter, Digital control panel, Power adapter, Drain hose.

Feature	Description
Digital Humidistat	Automatically maintains desired humidity level
12 GPD Output	Produces up to 12 gallons of moisture per day
Automatic Shut-off	Turns off when desired humidity is reached or tank is empty
Wick Filter System	Evaporative wick for efficient moisture release
Quiet Operation	Designed for low-noise performance in bedrooms/living areas
Easy-Clean Tank	Removable tank with wide opening for cleaning
Control Panel	Digital display with humidity readout and settings
Power Indicator	LED shows unit is powered on
Drain Connection	For continuous drainage option
Carry Handle	Integrated handle for easy transport

Installation

Unpack and inspect all components. Place on level, stable surface near power outlet and water source.

Position unit: Place on floor in central location, at least 6 inches from walls.
Install wick filter: Remove tank, insert wick into slot until it clicks.
Connect to water: Attach supply line to water inlet (for permanent installation).
Connect drain hose: Attach to drain outlet if using continuous drain.
Fill tank: Remove tank, fill with clean water, replace securely.
Plug into power: Use included power adapter.

WARNING! Do not place on carpet or near heat sources. Ensure unit is upright before filling.

First-Time Setup

Power on humidifier; follow initial setup procedure.

Set humidity level: Press +/- buttons to desired setting (30-60% recommended).
Select fan speed: Choose LOW, MEDIUM, or HIGH for moisture output.
Enable auto mode: Press AUTO to let humidistat maintain set level.
Check operation: Listen for fan; check for mist output within 10 minutes.
Calibrate humidistat: Compare display with room hygrometer if available.

CAUTION! Use clean, cool water only. Do not use hot water or additives.

Specifications

Coverage Area: Up to 1200 sq. ft.
Output: 12 gallons per day (GPD).
Tank Capacity: 1.5 gallons.
Humidity Control: Digital humidistat (30-90% RH).
Fan Speeds: 3 settings (Low, Medium, High).
Power Requirements: 120V AC, 60Hz, 40W.
Noise Level: < 40 dB on low setting.
Dimensions: 15" H x 10" W x 10" D.
Weight: 8 lbs (empty).
Filter Type: Evaporative wick (replace every 1-3 months).

Controls and Settings

Control Panel: POWER, HUMIDITY +/-, FAN SPEED, AUTO, RESET.

Display: Current humidity, Set humidity, Fan speed indicator, Filter change reminder.

Humidity Setting: Adjust between 30-90% RH. Fan Speed: LOW for quiet night operation, MEDIUM for normal use, HIGH for maximum output. Auto Mode: Maintains set humidity automatically. Reset: Hold for 3 seconds to reset filter timer. Sleep Mode: Dims display lights after 10 seconds of inactivity.

Connecting to Water Source

For permanent installation, connect to household water line.

Turn off main water supply before connecting.
Attach 1/4" supply line to water inlet on back of unit.
Connect other end to cold water line using saddle valve.
Open valve slowly; check for leaks.
For drain connection: Attach hose to drain outlet, route to floor drain.

Tip: Use included tubing; do not kink or bend sharply.

Operation Modes

Three operating modes for different needs.

Manual Mode: Set fan speed and humidity level manually.
Auto Mode: Unit adjusts fan speed automatically to maintain set humidity.
Constant Mode: Runs continuously at set fan speed regardless of humidity.
Night Mode: Reduces display brightness and operates at lowest fan speed.
Turbo Mode: Maximum output for quickly raising humidity in very dry conditions.

WARNING! Do not operate without water or with empty tank. Keep away from children.

Maintenance & Cleaning

Regular maintenance ensures optimal performance and prevents mold/bacteria.

Daily: Check water level; refill as needed.
Weekly: Wipe exterior with damp cloth.
Bi-weekly: Clean tank with mild detergent, rinse thoroughly.
Monthly: Replace wick filter (sooner if mineral deposits visible).
Seasonal: Deep clean entire unit before storage.

CAUTION! Unplug before cleaning. Never immerse unit in water. Use only approved cleaning solutions.

Regulatory Information

UL Listed: Meets safety standards for household humidifiers. EPA Registration: Antimicrobial materials registered with EPA. Energy Star: Meets efficiency guidelines. Copyright © Honeywell International Inc. For support, visit www.honeywellhumidifiers.com or contact 1-800-468-1502.

Troubleshooting

Symptom	Possible Cause	Corrective Action
No mist/output	Empty tank/closed water valve	Fill tank; check water supply; ensure wick is wet.
Low humidity reading	Calibration needed	Compare with separate hygrometer; recalibrate if needed.
Unit not turning on	Power issue	Check outlet; ensure plug is secure; try different outlet.
White dust in room	Mineral deposits	Use distilled water; clean tank; replace wick filter.
Unusual noise	Fan obstruction	Turn off; check for debris; ensure unit is level.
Water leakage	Loose connections/overfill	Check all connections; do not overfill tank.
Filter change light on	Wick needs replacement	Replace wick filter; press RESET to clear reminder.

Reset: Unplug for 60 seconds, then restart.

Service: 1-800-468-1502; www.honeywellhumidifiers.com