Hisense Dehumidifier Use and Installation Manual

Safety Information

Your safety and the safety of others are very important. Hisense has provided many important safety messages in this manual and on the appliance. Always read and obey all safety messages to reduce the risk of fire, electrical shock, or injury when using the appliance.

Important Safety Instructions

• Plug into a grounded 3-prong outlet.
• Do not remove ground prong.
• Do not use an electrical adapter or extension cord.
• Do not drink water collected in the water bucket.
• Unplug dehumidifier before servicing.
• If the supply cord is damaged, it must be replaced by the manufacturer, its service agent, or similarly qualified persons to avoid a hazard.
• Keep packing materials out of the reach of children. Packaging materials can be dangerous for children due to a risk of suffocation.
• Be careful not to pinch, crush, or damage the power cord when installing or moving the appliance.
• Do not use the appliance in standing water or allow the product to be directly splashed by water during use.
• Store and install the appliance where it will not be exposed to temperatures below freezing or outdoor weather conditions.
• Call an authorized service technician to repair or immediately replace all damaged power cords. Do not use a cord that shows cracks or abrasion damage along its length or at either end.
• Do not use the product if the outlet is damaged or loose.
• In the event of a gas leak (propane gas, LP gas, etc.), do not operate this or any other appliance. Open a window or door to ventilate the area immediately.
• Do not disassemble, repair, or modify the product.
• Do not store or use flammable gases or materials near the dehumidifier.
• Do not use wax, thinner, or a strong detergent when cleaning. Wipe the product using a soft cloth.
• Do not use the product in direct sunlight or rain.
• Position the product on a firm, stable surface.
• Remove cable ties and extend power cord before use.
• Do not spray foreign substances or water on the product.

Explanation of Symbols Displayed on the Unit

⚠ A2L WARNING

This symbol indicates the appliance uses a flammable refrigerant. If the refrigerant leaks and is exposed to an external ignition source, there is a risk of fire.

? CAUTION

This symbol indicates the operation manual should be read carefully.

?️ CAUTION

This symbol indicates service personnel should handle this equipment with reference to the installation manual.

ℹ️ CAUTION

This symbol indicates information is available, such as the operating manual or installation manual.

Circuit Diagram

The circuit diagram illustrates the internal electrical connections of the dehumidifier. Key components include a MICRO SWITCH (WATER), POWER UNIT, CAPACITOR, FAN MOTOR, COMPRESSOR MOTOR, CONTROL UNIT (which may include Wi-Fi functionality for compatible models), TEMP. SENSOR (coil pipe), and TRANSFORMER. The diagram shows connections for 115Vac/60Hz power input, and indicates that Wi-Fi functionality is only applicable to models with Wi-Fi.

Precautions for Using R32 Refrigerant

The basic installation procedures are similar to conventional refrigerants (R22 or R410A), but specific attention must be paid to the following:

1. Transport of equipment containing flammable refrigerants: Comply with transport regulations.
2. Marking of equipment using signs: Comply with local regulations.
3. Disposal of equipment using flammable refrigerants: Comply with national regulations.
4. Storage of equipment/appliances: Store in accordance with manufacturer's instructions.
5. Storage of packed (unsold) equipment: Packaging must prevent mechanical damage that could cause refrigerant leaks. Local regulations determine the maximum number of units stored together.
6. Information on servicing:
   • Checks to the area: Before working on systems with flammable refrigerants, safety checks are necessary to minimize ignition risk. Work on the refrigerating system must follow controlled procedures to minimize flammable gas/vapor presence.
   • General work area: All maintenance staff must be instructed on the work. Avoid confined spaces. Section off the area and control flammable materials.
   • Checking for presence of refrigerant: Use an appropriate refrigerant detector before and during work. Ensure the detector is suitable for flammable refrigerants (non-sparking, sealed, intrinsically safe). Calibrate the detector to the refrigerant's LFL (25% maximum).
   • Presence of fire extinguisher: Have a dry powder or CO2 fire extinguisher available if hot work is conducted.
   • No ignition sources: Do not use any ignition sources (including smoking) when working on refrigeration systems involving flammable refrigerant pipework. Ensure the area is free of flammable hazards and ignition risks. Display "No Smoking" signs.
   • Ventilated area: Ensure the area is open or adequately ventilated before and during work to safely disperse released refrigerant externally.
   • Checks to the refrigeration equipment: Electrical components must be fit for purpose and correct specification. Follow manufacturer's guidelines. For flammable refrigerants, verify charge size vs. room size, ventilation machinery operation, and absence of obstructions. Check secondary circuits for refrigerant presence if an indirect system is used. Ensure markings are visible and legible. Refrigeration pipes/components must be positioned to avoid corrosion unless made of resistant materials.
   • Checks to electrical devices: Repair and maintenance include initial safety checks and component inspection. If a fault compromises safety, do not connect electrical supply until it's resolved. If temporary operation is needed, report it to the owner. Initial safety checks include: discharged capacitors (safely to avoid sparking), no live electrical components/wiring exposed during charging/recovery/purging, and earth bonding continuity.
7. Repairs to sealed components: Disconnect all electrical supplies before removing sealed covers. If electrical supply is necessary, use a continuously operating leak detection system at critical points. Ensure casing protection is not altered, including cables, connections, terminals, seals, and glands. Mount apparatus securely. Ensure seals prevent flammable atmospheres ingress.
8. Repairs to intrinsically safe components: Do not apply permanent inductive or capacitance loads exceeding permissible voltage/current. Only intrinsically safe components can be worked on live in flammable atmospheres. Use correct test apparatus. Replace components only with manufacturer-specified parts.
9. Cabling: Check cabling for wear, corrosion, excessive pressure, vibration, sharp edges, or other adverse environmental effects. Consider aging and continuous vibration from compressors/fans.
10. Detection of flammable refrigerants: Do not use potential ignition sources (e.g., halide torch, naked flame) for leak detection.
11. Leak detection methods: Electronic leak detectors are acceptable but may need recalibration (in a refrigerant-free area). Ensure the detector is not an ignition source and is suitable for the refrigerant. Calibrate to 25% LFL. Leak detection fluids are suitable but avoid chlorine-containing detergents. If a leak is suspected, remove/extinguish all naked flames. If brazing is required, recover or isolate all refrigerant from the system, then purge with oxygen-free nitrogen before and during brazing.
12. Removal and evacuation: Follow conventional procedures, but for flammable refrigerants, adhere to best practice: safely remove refrigerant per local/national regulations, purge circuit with inert gas, evacuate (optional for A2L), purge again with inert gas (optional for A2L), then open circuit by cutting/brazing. Recover refrigerant into correct cylinders. Purge systems with oxygen-free nitrogen to render them safe. Do not use compressed air or oxygen for purging. Repeat purging until no refrigerant remains. Ensure vacuum pump outlet is not near ignition sources and ventilation is available.
13. Charging procedures: Prevent contamination of different refrigerants. Use shortest possible hoses/lines. Keep cylinders upright. Earth refrigeration system before charging. Label system when charging is complete. Do not overfill. Pressure test with OFN before recharging. Leak test after charging but before commissioning. Perform follow-up leak test before leaving site.
14. Decommissioning: Technician must be familiar with equipment. Recover all refrigerants safely. Take oil/refrigerant sample for analysis if re-use is planned. Ensure electrical power is available. Familiarize with equipment, isolate electrically. Ensure mechanical handling equipment is available, personal protective equipment is used, recovery process is supervised by a competent person, and recovery equipment/cylinders conform to standards. Pump down refrigerant if possible. Use a manifold if vacuum is not possible. Place cylinder on scales. Operate recovery machine per manufacturer instructions. Do not overfill cylinders (max 80% liquid charge). Do not exceed max working pressure. Remove cylinders/equipment promptly after filling. Do not charge recovered refrigerant into another system unless cleaned/checked.
15. Labelling: Equipment must be labelled as decommissioned and emptied of refrigerant, with date and signature. Labels must indicate flammable refrigerant.
16. Recovery: When removing refrigerant for servicing or decommissioning, safely remove all refrigerants. Use appropriate recovery cylinders. Ensure correct number of cylinders for total system charge. Cylinders must be designated and labelled for the recovered refrigerant, complete with pressure relief valve and shut-off valves. Empty recovery cylinders should be evacuated and cooled. Recovery equipment must be in good working order with instructions and calibrated weighing scales. Hoses must have leak-free disconnect couplings and be in good condition. Check recovery machine before use for satisfactory working order, maintenance, and sealed electrical components.

⚠ WARNING: Risk of Fire or Explosion. This unit contains flammable refrigerant.

Additional safety precautions must be followed:

• Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
• The appliance must be stored in a room without continuously operating ignition sources (e.g., open flames, operating gas appliance, or electric heater).
• Do not pierce or burn refrigerant tubing. Be aware that refrigerants may not contain an odor.
• Compliance with national gas regulations must be observed.
• Keep ventilation openings clear of obstruction.
• The maximum refrigerant charge amount is shown on the nameplate of the air conditioner.
• When handling, installing, and operating the appliance, care should be taken to avoid damage to the refrigerant tubing.
• Do not drill holes in the unit.
• Maintenance, cleaning, and service should only be performed by technicians properly trained and qualified in the use of flammable refrigerants.
• Dispose of air conditioner in accordance with Federal and Local Regulations. Flammable refrigerants require special disposal procedures. Contact local authorities for environmentally safe disposal.
• The appliance must be stored to prevent mechanical damage.
• The appliance must be stored in a well-ventilated area where the room size corresponds to the room area specified for operation.
• This product contains small parts (e.g., batteries, battery cover, screws) that may cause suffocation if swallowed by children.

Pre-Installation

Package Contents

The dehumidifier package includes the following parts:

• Control panel: The interface for operating the unit.
• Handle: For carrying or moving the unit.
• Hose cover: Covers the hose connection port.
• Bucket handle: For lifting and carrying the water bucket.
• Bucket: Collects condensed water.
• Air filter: Filters dust and particles from the air.
• Power plug: For connecting to an electrical outlet.
• Quick connect hose: (For pump function models only) Used for continuous drainage.
• User manual: This document.

Visual representation of the dehumidifier shows the location of these parts: The control panel (A) is on top, handle (B) on top/side, hose cover (C) and bucket handle (D) are on the side, bucket (E) at the bottom front, air filter (F) at the back, power plug (G) at the back, and quick connect hose (H) for pump models.

Electrical Requirements

Specific electrical requirements are listed below. Follow the requirements for the type of plug on the power supply cord.

Recommended Grounding Method

This dehumidifier must be grounded. It is equipped with a power supply cord with a three-prong grounding plug. The cord must be plugged into a properly grounded three-prong outlet, grounded in accordance with all local codes and ordinances. If a properly grounded outlet is not available, it is the customer's responsibility to have a properly grounded three-prong outlet installed by a qualified electrician.

Customer's Responsibility

• Contact a qualified electrician.
• Assure that the electrical installation is adequate and conforms to the national electrical code, ANSI/NFPA 70-latest edition, and all local codes and ordinances.

Copies of the standards listed may be obtained from: National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471, or visit www.nfpa.org.

Wiring Requirement

Location Requirements

• Do not locate outdoors. This dehumidifier is intended for indoor, residential use only. This dehumidifier is not recommended for commercial use.
• Allow at least 12 in. to 18 in. (30.5 cm to 45.7 cm) of space on the rear and sides of the dehumidifier for models with back louver and above the dehumidifier for models with top louvers.
• You will need a surface strong enough to support the dehumidifier when its bucket is full of water.
• You will need a surface level enough to keep the water from spilling when the bucket is full of water.
• Do not block the louvers of the unit.
• Never operate this dehumidifier in an area that is likely to accumulate standing water. If this condition develops, for your safety disconnect the power supply before stepping into the water.

A diagram shows the dehumidifier with recommended clearance of 12 to 18 inches (30.5 to 45.7 cm) from walls or other objects on its sides and back.

Operation

• Before turning on the dehumidifier, ensure the bucket is empty and fits all the way into the dehumidifier.
• Each time the dehumidifier is unplugged or power is interrupted, controls will return to previous settings when power is restored.
• Humidity displayed is between 30% and 90% relative humidity.
• Humidity can be set between 30% and 80% relative humidity.
• It's important to set the desired humidity level to an achievable setting. For energy-efficient operation, use the dehumidifier only in a closed space, without open windows or other sources of moist air (to avoid continuous running).
• Operating temperature is between 38°F to 90°F (3.2°C to 32.2°C). At temperatures of 38°F (3.2°C) or less, water freezes inside the product. At temperatures over 90°F (32.2°C), the internal temperature trips a protective device to deactivate the product and prevent damage.
• The compressor has a 3-minute delay before restarting. If the product is stopped and immediately restarted, there is a 3-minute delay until the compressor restarts to protect it.
• When the dehumidifier is operating, the indoor temperature will rise. The dehumidifier does not have a cooling/heating function. Heat generated during operation may increase room temperature by about 6°F (3°C) depending on usage conditions (indoor temperature, room size).

1. Using the Control Panel

The control panel features various buttons and indicators for operation. While symbols may differ between models, functions are similar.

Power On or Off

• Press the POWER button to turn the dehumidifier on or off.

Desired Humidity Mode

• Press and release MODE until you see the symbol for the desired humidity setting. Operating modes are Auto Dry, Continuous, or Manual Set.
• Auto Dry: The dehumidifier operates in dry mode only. Fan speed is set automatically. Desired humidity is set to 50% automatically.
• Continuous: The dehumidifier operates continuously. Fan speed can be adjusted. Desired humidity cannot be adjusted.
• Manual Set: The dehumidifier operates at the selected fan speed to the set humidity level. If room humidity is higher than desired, the compressor turns on. If room humidity is lower, the compressor and fan turn off.

Empty Bucket Light

If this light is on, the fan and compressor stop running. This indicates you need to check:

• If the bucket is full, empty and re-install it.
• If the bucket is not in position, remove and re-install it. Ensure the bucket fits all the way into the dehumidifier and the bucket light is off, or the dehumidifier will not run.

Fan Speed

• Press FAN to select fan speed.
• Choose LOW, HIGH, or AUTO.
• LOW: Reaches desired humidity setting with lower sound level.
• HIGH: More quickly reaches desired humidity setting.
• AUTO: Achieves set humidity at normal speed.

Humidity Level

• Press the Plus (+) or Minus (-) button to set the desired humidity level. Desired humidity in the digital display will flash for 5 seconds after operation.
• Actual room humidity will be displayed after 5 seconds of flashing the desired humidity.

Digital Display

The display shows relative humidity or time (depending on setting).

• When the dehumidifier operates in Manual Set mode, the display shows the relative humidity of the room.
• When the timer is selected, the display shows the time when the dehumidifier will turn on or turn off, depending on the setting.

Timer

To set Timer for a 30-minute to 24-hour delay before the dehumidifier turns off (dehumidifier must be On):

• Press TIMER. Timer indicator light will come on, and the display will flash, showing remaining time before the dehumidifier turns off.
• Press the Plus or Minus button to change the delay time, from 30 minutes to 24 hours.

To set Timer to turn on the dehumidifier, with previous setting:

• Turn off the dehumidifier.
• Press TIMER. Timer indicator light will flash, showing remaining time before the dehumidifier turns on.
• Press the Plus or Minus button to change the delay time, from 30 minutes to 24 hours.

To clear the Timer delay program:

• Press TIMER once after it has been programmed. Display will show remaining time. While the display shows remaining time, press TIMER again. Timer indicator light will turn off.

To see the remaining time:

• Press TIMER once after it has been programmed. Display will show remaining time.

Clean Filter

• When the Clean Filter indicator light is on, remove, clean, and replace the air filter. See “Cleaning the Air Filter”.
• Press the Clean Filter button to reset the filter monitor.

Pump (for pump function model only)

This feature pumps water horizontally or vertically to a drain, out a window, or anywhere suitable.

• Press PUMP to activate the pump system for active drainage.
• Once the pump button is pressed, the pump light will switch on.

2. Normal Sounds

When your dehumidifier is operating normally, you may hear sounds such as:

• Air movement from the fan.
• Clicks from the thermostat cycling.
• A high-pitched hum or pulsating noise caused by the high-efficiency compressor cycling on and off.

3. Using the ConnectLife App (Wi-Fi compatible product only)

The ConnectLife app by Hisense provides the ability to conveniently monitor the unit and change settings from anywhere.

Devices Required to Use the Smart AC:

• Smart Phone with compatible iOS or Android system.
• Wireless Router (a 2.4 GHz network is required to connect).
• Smart air conditioner.

Download and Install the ConnectLife App

To download the ConnectLife app, scan the QR code provided in the manual or go to Google Play or App Store and search for "ConnectLife APP". Follow the in-app instructions to pair your appliance.

Care and Cleaning

1. Draining the Dehumidifier - Bucket Draining

If a floor drain is not available, or you do not plan to run your dehumidifier continuously, you may simply empty the bucket:

• Grasp the bucket (E) sides to slide out.
• Lift the bucket (E) up by the handle (D).
• Pour water into a sink or tub.
• Fold down the handle (D) and reinstall the bucket (E).

2. Gravity Draining

If you plan to run your dehumidifier continuously, you can choose direct draining by attaching a garden hose to the unit.

Models without a pump:

• Turn off the dehumidifier and unplug the power supply cord.
• Uncover the connector cover on the side of the unit (1).
• Remove bucket.
• Attach a garden hose (2) to the drain hose connector (3) on the inside of the dehumidifier. Securely attach the hose to ensure no water leak.
• Reinstall bucket.

Models with a pump:

• Turn off the dehumidifier and unplug the power supply cord.
• Uncover the connector cover on the back of the unit (4).
• Attach a garden hose (5) to the drain hose connector (6) on the back of the dehumidifier. Securely attach the hose to ensure no water leak.

For both models:

• Place the other end of the garden hose into a floor drain. Ensure the hose lies flat and is in the drain (8). Make sure all parts of the hose are on a lower level (7) than the hose connector on the dehumidifier. The hose outlet should be at least 5.5 in. lower than the hose connector. The hose should not be kinked or pinched.

3. Pump Draining (models with a pump)

This feature helps pump water horizontally or vertically with a 16 ft. (487.68 cm) hose included. Water can be pumped to a floor drain, out a window, or anywhere suitable.

To connect the drain hose to the unit:

• Uncover the connector cover (1) on the side of the unit, and pass the hose (3) through the side hole (2).
• Insert the drain hose (3) into the drain hose connector (4) and ensure it is plugged to the bottom of the connector.

To disconnect the drain hose:

• Method 1: Push the "PUSH" button on the connector through the side hole (do not release). At the same time, pull the drain hose out, and cover the connector cover.
• Method 2: Slide out the bucket, pinch the “PUSH" button with your finger (do not release). At the same time, pull the drain hose out, cover the connector cover, and reinstall the bucket.

4. Cleaning the Water Filter (pump models only)

• Unplug the unit before cleaning. After every month of usage, the water filter needs to be cleaned for smooth water pump running.
• Remove the air filter (1), and slowly lean the unit backward with a small angle (<5°). Prepare a container (3) to catch the water, and unscrew the connector cover (2) on the back of the unit.
• When water comes out from the nozzle, use a container to catch the water.
• Pull out the water filters (4).
• Clean the water filters with a soft brush. If very dirty, wash in water and a neutral detergent.
• Re-install the water filters (4) and ensure they are installed in the right position (L for left side, R for right side).
• Re-install the air filter.

Service calls to clean the water filter are not covered under the product warranty.

5. Cleaning the Air Filter

The air filter is removable for easy cleaning. A clean filter helps remove dust, lint, and other particles from the air and is important for best operating efficiency. Check the filter every two weeks to see whether it needs cleaning.

• Turn off the dehumidifier.
• Remove the air filter.
• Use a vacuum cleaner to clean the air filter. If the air filter is dirty, wash it in warm water with a mild detergent.
• Reinstall the air filter.
• Turn on the dehumidifier.

6. Cleaning the Exterior

• Turn off the dehumidifier and unplug the power supply cord.
• Dust the surface of the unit with a soft cloth or the dusting attachment of your vacuum cleaner.

7. Cleaning the Water Bucket

Every few weeks, rinse the inside of the water bucket with a mild detergent to avoid growth of mold, mildew, and bacteria.

Water level float

The dehumidifier has an EMPTY BUCKET light and a water float (1). The bucket (2) must be properly aligned for the water level float and the EMPTY BUCKET light to work.

Troubleshooting

Before calling for service, try the suggestions below.