Danby SDR458H Dehumidifier Manual

The Danby SDR458H is a 45-pint capacity dehumidifier designed for residential use. It features electronic controls, a continuous drain option, auto-restart, a 24-hour timer, a washable air filter, and a full-bucket alert with auto-shutoff. Ideal for medium to large rooms, it operates on 115V AC, 60Hz. 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. Operation 7. Maintenance 8. Care & Cleaning 9. Regulatory Information 10. Troubleshooting

Features at a Glance

Key components: Electronic control panel, removable water bucket, continuous drain hose connection, washable air filter, casters for mobility.

Feature	Description
Capacity	45 pints per day (at 80°F, 60% RH)
Control Panel	Digital display with touch controls
Water Bucket	Removable with full indicator and auto shutoff
Continuous Drain	Hose connection for unattended operation
Timer	24-hour programmable on/off timer
Air Filter	Washable, removable filter
Auto Restart	Resumes previous settings after power interruption
Humidistat	Adjustable desired humidity level (35%-85%)
Mobility	Four swivel casters for easy movement
Power	115V AC, 60Hz, 4.5A

Installation

Unpack and inspect contents. Place on level, stable surface.

Positioning: Place unit at least 12 inches from walls and furniture for proper airflow.
Bucket Installation: Ensure water bucket is securely inserted.
Continuous Drain (Optional): Attach 5/8" inner diameter hose to drain port; route to floor drain or suitable outlet.
Plug into grounded 115V AC outlet.

WARNING! Do not use extension cords. Ensure unit is upright before operating.

First-Time Setup

Plug in unit; control panel will illuminate.

Set Humidity Level: Press HUMIDITY button, then +/- to set desired level (recommended 45-50%).
Select Mode: Choose between CONTINUOUS (runs constantly) or AUTO (cycles based on humidity).
Set Timer (Optional): Use TIMER button to program start/stop times.
Check Filter: Ensure air filter is clean and properly installed.

CAUTION! Operate only within 41°F to 95°F. Do not block air intake or exhaust.

Specifications

Model: SDR458H
Dehumidification Capacity: 45 pints/day @ 80°F, 60% RH
Power Supply: 115V AC, 60Hz, 4.5A
Water Bucket Capacity: 1.6 gallons
Operating Temperature Range: 41°F to 95°F
Humidity Control Range: 35% to 85% RH
Air Flow: 165 CFM
Noise Level: ≤ 52 dB
Dimensions (HxWxD): 23.6" x 15.4" x 11.8"
Weight: 33 lbs

Controls and Settings

Access all functions via electronic control panel. Front Panel: POWER, MODE, HUMIDITY, FAN SPEED (LOW/HIGH), TIMER, +/- buttons.

Display Indicators: Current humidity, set humidity, timer, full bucket alert, filter check, mode icons.

Modes: CONTINUOUS (fan runs constantly), AUTO (cycles based on humidity setting). Fan Speed: LOW for quiet operation, HIGH for maximum moisture removal. Timer: Program on/off in 1-hour increments up to 24 hours. Humidity Setting: Adjust in 5% increments from 35% to 85%.

Operation

Normal operation with bucket or continuous drain.

Bucket Operation: Unit runs until bucket is full; "FULL" indicator lights and unit shuts off. Empty bucket and reinsert to resume.
Continuous Drain: Connect hose; unit will run continuously without shutdown for emptying.
Auto Restart: After power failure, unit resumes previous settings automatically.
Timer Operation: Set start delay or shutoff time for energy savings.

Tip: For best efficiency, keep doors and windows closed in the room being dehumidified.

Maintenance

Regular maintenance ensures optimal performance.

Empty Bucket: Regularly empty and clean with mild detergent.
Clean Filter: Remove and wash filter every 2 weeks or as needed. Let dry completely before reinstalling.
Clean Exterior: Wipe cabinet with damp cloth; do not use abrasive cleaners.
End-of-Season Storage: Empty bucket, clean filter, coil, and cabinet. Store upright in dry location.

WARNING! Unplug unit before any maintenance. Do not immerse in water.

Care & Cleaning

Unplug before cleaning. Clean bucket and filter regularly. Use soft cloth for exterior; no harsh chemicals.

CAUTION! Do not spray water directly on unit. Keep electrical components dry.

Regulatory Information

Troubleshooting

Symptom	Possible Cause	Corrective Action
Unit does not start	No power/bucket full	Check power outlet; ensure bucket is empty and properly inserted.
Low moisture removal	Dirty filter/extreme conditions	Clean filter; ensure room temp is 41°F-95°F; check for open windows.
Water leakage	Bucket not seated/hose connection	Ensure bucket is fully inserted; check hose for kinks/leaks.
Loud noise	Uneven surface/foreign object	Place on level floor; check for objects near fan.
Display not working	Power issue	Check power cord connection; try different outlet.

Reset: Unplug for 5 minutes, then restart.

Service: 1-800-263-2629; www.danby.com