This document is the Owner's Manual for the ACD DEHUMIDIFIER APD Series, covering models APD20P, APD30P, and APD45P. It provides comprehensive information on the device's function, technical specifications, usage, and maintenance.
Function Description:
The ACD DEHUMIDIFIER APD Series is designed for indoor residential applications to reduce humidity levels. It operates by drawing in humid air, removing moisture, and then expelling drier air. The unit is equipped with a control panel for setting desired humidity levels, fan speeds, and timer functions. It features an auto-defrost function to prevent frost buildup on evaporator coils and an auto shut-off mechanism when the water bucket is full or removed. The dehumidifier is not intended for commercial or industrial use.
Important Technical Specifications:
- Operating Temperature Range: The dehumidifier should operate in an area where the temperature is not below 5°C (41°F) or above 32°C (90°F).
- Suggested Relative Humidity Range: The suggested range for effective operation is between 30% and 90% RH.
- Humidity Setting Range: The humidity level can be set from 80% RH down to 35% RH, with 5% reduction increments, or to continuous operation (NS mode).
- Power Supply: The manual emphasizes the importance of matching the power supply to the appliance's requirements and using a qualified power supply circuit and circuit breaker according to local safety regulations. Proper grounding is crucial to prevent electric shock.
- Refrigerant Circuit: The temperature of the refrigerant circuit will be high, requiring the interconnection cable to be kept away from the copper tube.
- Extension Cords: If an extension cord is used, it must be a cord set with an equipment grounding conductor grounding-type attachment plug and connector, and its amperage and rated voltage must be specified by the manufacturer.
Usage Features:
- Placement: The dehumidifier should be placed on a smooth, level floor with at least 18 inches of air space on all sides for optimal performance. Doors, windows, and other outside openings of the room should be closed to improve efficiency. The air inlet/outlet must be kept clean and unblocked. It should not be used in a bathroom or under direct sunlight.
- Initial Setup: Before operation, it's essential to check that the float in the water bucket is properly placed. If it has moved during transportation, it should be manually adjusted to the correct position.
- Control Panel:
- POWER Button: Turns the dehumidifier on and off.
- +/- Buttons: Adjust the humidity level. Pressing '-' lowers the humidity setting (for drier air), while pressing '+' raises it (for damper air). Continuous operation (NS) can be selected by pressing '-' until NS appears on the display.
- FAN SPEED Button: Selects High, Medium, or Low fan speed. High speed is recommended for maximum humidity removal, while Medium or Low is preferred for quieter operation once humidity is reduced.
- TIMER Button: Sets the unit to automatically turn off (when operating) or turn on (when off) in 2 or 4 hours.
- Display: Shows the set % humidity level, then the actual room % humidity level (± 5% accuracy).
- Water Bucket: The water bucket must be correctly installed for the dehumidifier to operate. It should not be removed while the unit is in operation.
- Full Indicator/Alarm: The "FULL" indicator light glows when the bucket needs emptying or is not in place. If the bucket is full or missing for more than three minutes, an alarm will sound for about 10 seconds.
- Auto Shut-Off: The water level control switch automatically shuts off the dehumidifier when the bucket is full or improperly placed.
- Auto Defrost: If frost builds on the evaporator coils, the compressor cycles off, and the fan continues to run until the frost clears.
- Power Outage: In case of a power outage, the unit automatically restarts with the last used settings once power is restored.
- Drainage Options:
- Manual Emptying: The water bucket can be manually removed and emptied. Care should be taken to avoid spilling water.
- Gravity Drain Hose: For continuous drainage, a user-supplied hose (with specific thread dimensions: 1 1/16 inches outer diameter, 11.5 TPI pitch) can be threaded onto the nozzle after removing the bucket. The hose must be securely locked and placed downward to a floor drain, ensuring it is not pressed or blocked. The bucket must be replaced even when using the drain hose.
Maintenance Features:
- Safety First: Always turn off and unplug the unit before cleaning to avoid electric shock. Do not wash the unit with water or use volatile liquids.
- Grille and Case Cleaning:
- For dust, use a soft towel.
- For dirty/greasy cases, use mild detergent.
- For the air-in grille, use a vacuum cleaner or brush.
- Water Bucket Cleaning: Clean the bucket every few weeks to prevent mold, mildew, and bacteria growth using a soft brush and rinsing.
- Removal (APD20P, APD30P, APD45P): Involves directing the rotor shaft of the handle to the buckle plate hole, pulling the bucket plate, and removing the handle. Then, press down all buckles around the bucket and lift the drain lid.
- Reassembly: After cleaning, replace the drain lid and handle, ensuring the float is properly placed with the foam plastic side beneath the drain lid. Do not remove the foam plastic from the float.
- Air Filter Cleaning: The dehumidifier reminds the user to clean the air filter after 250 hours of operation (more often in dusty environments).
- Removal: Remove the bucket, grasp the filter edge, and pull it straight down and out.
- Cleaning: Wash the filter in warm, soapy water, rinse, and let it dry before replacing.
- Warnings: Do not operate without a filter, as it can affect performance. Do not dry the filter with fire or an electric hair dryer, as it may deform or catch fire. Do not use a dust catcher or brush to clean the filter, as it may be damaged.
- Pre-Usage Check: Ensure air inlets/outlets are not blocked, the circuit breaker and connections are good, filters are clean, and the drainage hose is not damaged or blocked.
- Post-Usage Check: Disconnect power, clean the filter and case, remove dust/obstacles, and empty the water bucket.
- Long-Term Storage: If storing the unit for an extended period, ensure the bucket is clear of water, the drain hose is removed, the unit is unplugged, the power cord is packed, and the unit is cleaned and wrapped to prevent dust accumulation.
Malfunction Analysis and Troubleshooting:
The manual provides a troubleshooting guide for common issues:
- Dehumidifier not operating/controls not setting: Check temperature range (must be 5-32°C), full bucket, power supply, fuse, and proper bucket placement.
- Noise suddenly rises: Normal if the compressor just started or if the unit is on an uneven floor.
- Humidity not dropping/little effect: Check if the area is too large, doors/windows are open, vapor-producing devices are present, room temperature is too low, or humidity level is improperly set.
- Musty smell: Normal when first operated due to heat exchanger temperature rising.
- Unit has noises/swooshing sound: May be due to wooden floor operation or normal refrigerant flow.
- Water leakage (with drain hose): Check drainage joint connection and for obstacles, or if the drain hose is incorrectly installed.
Error Codes:
The manual lists specific error codes displayed on the unit's temperature indicator when an abnormal status occurs:
- F1: Ambient Temperature Sensor Malfunction (sensor loosen/poorly connected, display board element upside down/short circuit, or sensor damaged).
- F2: Tube Temperature Sensor Malfunction (sensor on evaporator loosen/poorly connected, display board element upside down/short circuit, or sensor damaged).
- F5: Discharge Temperature Sensor Malfunction (sensor on evaporator loosen/poorly connected, display board element upside down/short circuit, or sensor damaged).
- L1: Humidity Sensor Malfunction (sensor short-circuited or damaged, or display board damaged).
- F0: Freon-lacking protection (refrigerant leaking, system blocked).
- H3: High-temperature overload protection (bad ambient operation, evaporator/condenser blocked with filth, abnormal system).
- E4: High discharge temperature protection of compressor (abnormal system, abnormal motor speed, abnormal air intake, or compressor discharge temperature sensor abnormal/poorly contacted).
For F1, F2, F5, and L1 errors, the compressor and fan motor stop, and buttons are invalid. For F0, H3, and E4 errors, the compressor stops, and the fan motor stops after 30 seconds. In all cases, if the malfunction cannot be eliminated, users are advised to contact a qualified person or the manufacturer.
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