Honeywell Humidifier HCM-315T Series Manual

The Honeywell HCM-315T Series is a cool mist humidifier designed to add moisture to dry air in medium to large rooms. It features a 1-gallon tank capacity, adjustable humidity control, a wicking filter for demineralization, a quiet operation mode, an easy-to-fill tank design, an automatic shut-off function when empty, and a filter change indicator. Below are key sections for safety, features, installation, setup, operation, maintenance, and troubleshooting.

Features at a Glance

Key components: Water Tank, Base Unit with Motor, Demineralization Cartridge (Filter), Humidistat Control Knob, Mist Nozzle, Tank Cap, and Power Cord.

Installation & Setup

Unpack and inspect all contents. Place on a stable, level, waterproof surface away from electronics and furniture.

1. Remove all packaging materials from the humidifier and filter.
2. Install the demineralization cartridge: Remove from package and insert into the slot in the base until it clicks into place.
3. Fill the tank: Remove tank from base, unscrew cap, fill with cool tap water up to the fill line, replace cap securely.
4. Place tank on base: Align tank with base and set down gently.
5. Plug into a standard 120V AC outlet.

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

First-Time Use

After installation, power on the humidifier and adjust settings.

1. Power On: Plug in the unit. The power indicator light will illuminate.
2. Set Humidity Level: Turn the control knob to the desired setting (LOW to HIGH).
3. Adjust Mist Nozzle: Point the 360° nozzle in your preferred direction.
4. Monitor Operation: Mist should be visible from the nozzle. The unit will run until the desired humidity is reached or the tank is empty.

CAUTION! Do not block mist outlet. Keep out of reach of children. Always turn the control knob to OFF and unplug before moving or cleaning.

Specifications

• Model Series: HCM-315T
• Tank Capacity: 1 Gallon (3.8 Liters)
• Room Coverage: Up to 375 square feet (medium to large room)
• Run Time: Up to 24 hours on LOW setting
• Humidity Output: Adjustable cool mist
• Filter Type: Demineralization Cartridge (Wicking Filter)
• Filter Life: Up to 30 days (depending on water hardness and usage)
• Power Source: 120V AC, 60Hz
• Power Consumption: Low wattage
• Dimensions (approx.): 11.5" H x 10.5" W x 7.5" D
• Weight (empty): 4.5 lbs

Controls and Settings

Primary control is the Humidistat Knob on the front of the base unit.

Control Knob: Rotate clockwise from OFF to LOW, MEDIUM, and HIGH mist output settings. The setting determines fan speed and mist volume.

Indicator Lights: Power Light (Blue/Green) shows unit is on. Filter Change Indicator Light (Red/Orange) illuminates when it's time to replace the demineralization cartridge.

Mist Nozzle: Manually rotate 360° to direct mist flow away from walls, furniture, or electronics.

Operation

For daily use, ensure the tank is filled and the filter is in good condition.

1. Daily Start: Ensure tank is filled and properly seated on base. Turn knob to desired setting.
2. Monitoring: Check water level periodically. Refill when low.
3. Automatic Shut-Off: When the tank is empty, the unit will automatically power off. The power light may remain on until unplugged.
4. Night Use: The LOW setting is recommended for quiet operation during sleep.
5. To Stop: Turn knob to OFF. Unplug from outlet if not using for an extended period.

Tip: For best performance, use in a closed room. Place at least 12 inches away from walls and furniture.

Maintenance & Cleaning

Regular cleaning prevents mold, mineral buildup, and ensures efficient operation.

1. Unplug the unit before any cleaning.
2. Daily: Wipe exterior with a soft, damp cloth. Do not immerse in water.
3. Weekly/Tank Cleaning: Empty any remaining water. Clean tank interior with a mixture of 1 teaspoon of white vinegar and 1 gallon of water. Swirl, soak for 20 minutes, then rinse thoroughly with clean water. Dry completely.
4. Base Cleaning: Wipe base interior with a vinegar/water dampened cloth. Do not get motor or electronics wet. Ensure all parts are dry before reassembly.
5. Storage: If not using for a season, clean all parts thoroughly, allow to dry completely, and store in original box in a cool, dry place. Remove filter.

WARNING! Never use abrasive cleaners, bleach, or detergents. Do not submerge base unit in water. Always ensure all parts are completely dry before use.

Filter Replacement

The demineralization cartridge (Filter) should be replaced every 30 days or when the Filter Change Indicator light turns on, whichever comes first.

1. Unplug the humidifier and remove the water tank.
2. Locate the used filter in the base slot. Pull it straight up and out.
3. Unpack the new Honeywell replacement filter (Model FC-30A or equivalent).
4. Insert the new filter into the slot, pressing down until it is fully seated.
5. Reset the Filter Indicator Light (if applicable): On some models, press and hold the filter reset button for 3 seconds after installing the new filter.
6. Reassemble the tank and base, then plug in the unit.

Note: Using the humidifier without a filter or with an expired filter will result in white mineral dust being emitted.

Regulatory Information

This appliance 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 related trademarks are owned by Honeywell International Inc. For genuine replacement parts and filters, visit www.honeywellpluggedin.com or contact customer support at 1-800-332-1110.

Troubleshooting

Reset: Unplug unit for 5 minutes, then plug back in to reset electronic controls.

Service: For issues not resolved above, contact Honeywell Customer Support at 1-800-332-1110 or visit www.honeywellpluggedin.com. Do not attempt to repair the unit yourself.