Waykar DP1201B Commercial Dehumidifier User Manual

Thank you for choosing Waykar. Established in 2014, Waykar is a leading brand in the HVAC industry, known for premium products that prioritize comfort and health in indoor spaces. Please read this manual carefully for necessary instructions before operating the product and keep it for future reference.

24/7 Full-Time Response

Upon receipt of the dehumidifier, inspect the package contents immediately for any potential missing or damaged parts. In case of issues, please contact Waykar support for solutions before initiating a return. You can reach Waykar support via email at support@waykar.com or by scanning the QR code for a live chat.

Important: Please Read Before Usage

Ensure the dehumidifier is always kept in an upright position to avoid internal damage. After unwrapping the dehumidifier, let it sit upright for 24 HOURS before plugging it in.

Note: The graphic illustrations in this manual are for demonstration purposes only. The actual product may vary slightly in size and shape.

General Safety Precautions

WARNING

Do not use means to accelerate the defrosting process or to clean the appliance, other than those recommended by the manufacturer. Risk of Fire or Explosion—Store in a well-ventilated room without continuously operating flames or other potential ignition. Do not pierce or burn. Be aware that refrigerants may not contain an odor.

The transportation and disposal of this dehumidifier must comply with local regulations regarding flammable refrigerants.

The appliance shall be installed, operated, and stored in a room with a floor area larger than 67 sq. ft.

Under no circumstances should you pierce or burn the dehumidifier casing, which may lead to refrigerant leak. Be aware that refrigerants may be odorless.

Device maintenance and repair should be left to trained professionals due to the potential safety hazards and environmental concerns associated with refrigerant leaks. Certified technicians can consult the Maintenance & Cleaning section in this manual for guidance on handling the flammable refrigerant with caution.

Parts Illustration

Front

Rear

Package Contents

The dehumidifier package contains the following items:

Installation Guide

Device Positioning & Placement

  1. The operational temperature range for the dehumidifier must be maintained between 41°F to 100°F (5–38°C). Operation outside of this specified temperature range may lead to potential damage to the product. Therefore, please do not place the device in an area where temperatures fall outside of this range.
  2. When positioning the dehumidifier, ensure it is not placed too close to walls or other objects, as this could obstruct the air vents. Maintain a minimum clearance of 39 inches above and around the device, as depicted in the diagram.
  3. The device should be positioned, operated, and stored in an area with a minimum space of 67 sq. ft.

Water Drainage

This dehumidifier provides two efficient drainage options: gravity drain and pump drain. Both methods effectively remove condensate water from the internal reservoir, ensuring continuous operation and hassle-free maintenance.

Pump Drain

The built-in pump automatically drains water upward or over an extended distance when the internal reservoir reaches the maximum water level. Please ensure the pump drain hose is properly attached before turning on the dehumidifier.

  1. Locate the Pump Drain Port and connect the included pump hose.
  2. Press the [Purge] button to manually start pumping water.
  3. The "Pump" indicator will blink when the pump starts draining and will stop blinking when the internal pump reservoir is nearly empty.
  4. Attach the other end of the drain hose to a floor drain or container.

Note: Ensure the pump drain hose is securely attached before turning on the dehumidifier. If the unit operates without a hose connected, the pump may discharge water onto the floor when the internal reservoir reaches full capacity and the pump drain is activated.

The pump supports a maximum water lift of 16.4 ft. Exceeding 15 ft in vertical drain height may result in water leakage.

Gravity Drain

If the pump drain malfunctions or vertical lift isn't needed for water drainage, you can connect the provided drain hose to the Gravity Drain Port to directly drain water out of the internal reservoir.

  1. Remove the top panel: Pull the edge of the top panel outward with force to detach it. Then, use a screwdriver to loosen the screws securing the bottom panel.
  2. Disconnect and replace the hose: Remove the original short hose from the drain port in the top right corner. Guide the included gravity hose through the opening on the side panel and connect it to the drain port for direct drainage.
  3. Reassemble the panels: Reattach the bottom and top panels.

Note: The drain hose should run smoothly downward and remain at least 3.94 inches lower than the drain port level to prevent water leakage.

Function Overview

1. Control Panel

The control panel features a Temperature Display (for temperature and error codes), a Timer Display (for timer duration), and various buttons for operation.

2. Button Instructions

3. Indicator Description

IconMeaningStatus
Standby IndicatorOn: Dehumidifier in standby. Off: Dehumidifier running.
❄️Fan IconOn: Fan is running. Off: Fan stops.
Compressor SymbolOn: Compressor is running. Off: Compressor is off. Flicker: Delayed compressor start. Flickering with Humidity: Target humidity level reached.
?Continuous DehumidifyingOn: Target humidity set to 10%RH.
❄️Defrosting IndicatorFlicker: Defrosting in progress. Off: Defrosting complete.
?Pump IconOn: Pump activated. Off: Pump deactivated. Flicker: Pump is actively draining water.
⬆️High-temperature protection activated.On: High-temperature protection activated.
⬇️Low-temperature protection activated.On: Low-temperature protection activated.
?⬆️Water HighOn: Water level inside the reservoir is high.
?⬇️Water LowOn: Water level inside the reservoir is low.

4. Features

Operation Instructions

1. Power On/Off & Standby Mode

Upon being plugged in, the dehumidifier's display will briefly illuminate to indicate it is connected to power. Then, the dehumidifier will enter standby mode, with the "Power" (⏻) illuminated.

Press the [Power] button to turn on the dehumidifier. The display will show real-time readings of the room temperature (°F) and humidity level (%RH). Note: Due to the compressor protection mechanism, there will be a short start delay for the compressor, indicated by the flickering of the "Dehumidify" symbol.

3-Minute Delay Compressor Protection

In the event of frequent power cycling, the 3-minute delay protection mechanism will be triggered to enforce a 3-minute delay before restarting the compressor.

FanCompressor
Power OnStarts running immediately.Will not restart until 3 minutes after the last shutdown.
Power OffContinues to work for another 5 seconds before turning off.Stops running immediately.

Note: Please wait until both the fan and the compressor have stopped running before unplugging the dehumidifier.

2. Humidity Setting

Once activated, the dehumidifier will automatically detect and display the space humidity on the screen (with the "%RH" symbol). The reading will be continuously updated in real-time to help you monitor the space humidity.

Press the [Up] or [Down] buttons to set your target humidity, ranging from 10% RH to 98% RH in 1% RH increments. You can also press and hold the buttons for continuous adjustment. After completing the settings, press the [OK] button to confirm, or wait 5 seconds for the system to exit automatically.

3. Timer Setting

Use the timer setting to schedule the dehumidifier to automatically turn on or off. Please note: The 24-hour timer is for one-time operation only and cannot be set to repeat. To cancel a timer, you will need to manually set the timer length to zero. Additionally, be aware that any timer settings will be cleared if the power is interrupted or if the unit is turned off and on again.

Programmed Shut-down:

  1. Press the [Timer] button to access the timer settings. The "Timer" indicator and the timer duration will begin to flicker on the screen.
  2. Press the Up or Down button to set the timer duration, cycling through 0 to 24 hours.
  3. After selecting the timer duration, press the [OK] button to confirm, or wait 5 seconds for the system to exit automatically.
  4. Once the timer is successfully set, the timer indicator will illuminate, displaying the remaining hours.

Programmed Start-up:

  1. In standby mode, the timer button is still functional for setting the auto-on timer for the dehumidifier.
  2. Press the [Timer] button and select a duration using the [Up] or [Down] button. Once a timer is successfully set, the Timer indicator will illuminate, displaying the remaining hours as well.
  3. The auto-on timer will restore the previous humidity setting from before the last power-off.

Error Code Explanation

Error CodesHandling Method
E1Replace the temperature and humidity sensor.
E2Replace the temperature sensor.
E3/EPPump failure detected. Contact the manufacturer for solutions.
E4Replace the temperature and humidity sensor.
E6Make sure the display circuit has been connected right, and the DISPLAY port is well connected.
-HNo problem. The unit resumes working when unit temperature goes down.
-LNo problem. The unit resumes working when unit temperature goes up.

The dehumidifier can still operate with certain functions disabled under E1, E2, or E4 errors.

If the problem persists, please unplug the dehumidifier and contact the Waykar Support Team at support@waykar.com for assistance.

Troubleshooting

If your dehumidifier malfunctions, try the following troubleshooting steps before contacting the manufacturer. This can help save time and potentially resolve the issue.

The listed problems are common issues that may occur with general dehumidifiers. It's important to note that this doesn't imply that this dehumidifier is prone to defects over time.

If the problem persists after following the recommended actions, please unplug the dehumidifier and contact Waykar Customer Service as soon as possible for assistance.

ProblemsPossible CausesSolutions
Unable to run the dehumidifierLoose power connectionCheck if the device is properly plugged into a working electrical outlet.
Damaged power connectorContact the manufacturer for solutions.
Not effectively dehumidifying the spaceSpace temperature out of the recommended rangeThe device can only operate in temperatures between 41°F and 100°F.
Dusty filterClean the filter.
Blocked air inlet or outletEnsure that the inlet or outlet is kept clear of any objects.
Open doors and windowsKeep windows and doors closed for efficient moisture removal.
Refrigerant leakedOpen the window and contact the manufacturer for solutions.
Much noiseUnstable device placementPosition the dehumidifier on a flat surface.
Blocked filterClean the filter.
Tittering sound?Refrigerant flowing sound. No action required.
Water leakageLoose hose connectionEnsure that the hoses are firmly attached.
Tilted devicePlace the dehumidifier on even ground.
Blocked drain portClean the port and ensure the drain hose is clear and smooth.
Humidity display error (constantly at 25% or 99% RH)Humidity sensor failureContact professional maintenance staff to repair and replace the humidity sensor.

Maintenance & Cleaning

Note: Please remember to unplug the dehumidifier first before servicing or cleaning the unit.

Filter Cleaning

  1. Open the filter panel and remove the filter.
  2. Gently brush off any dust from the filter, then rinse it thoroughly with water. Allow the filter to air dry completely. Do not dry the filter in direct sunlight to avoid deformation.
  3. Once dry, place the filter back into its compartment and securely close the panel.

Warnings Regarding the R32 Refrigerant

This dehumidifier contains R32, a flammable refrigerant. All operators or maintenance personnel for refrigeration systems must hold a valid certificate from an industry-recognized body for the safe disposal of refrigerants. Repairs and maintenance should strictly adhere to the manufacturer's guidelines. If additional help is required, ensure it's under the supervision of personnel qualified in handling combustible refrigerants.

Transportation, Marking and Storage for Units that Employ Flammable Refrigerants

  1. General: The following information is provided for units that employ FLAMMABLE REFRIGERANTS.
  2. Transport of equipment containing flammable refrigerants: Attention is drawn to the fact that additional transportation regulations may exist with respect to equipment containing flammable gas. The maximum number of pieces of equipment or the configuration of the equipment permitted to be transported together will be determined by the applicable transport regulations.
  3. Marking of equipment using signs: Signs for similar appliances used in a work area are generally addressed by local regulations and give the minimum requirements for the provision of safety and/or health signs for a work location. All required signs are to be maintained and employers should ensure that employees receive suitable and sufficient instruction and training on the meaning of appropriate safety signs and the actions that need to be taken in connection with these signs. The effectiveness of signs should not be diminished by too many signs being placed together. Any pictograms used should be as simple as possible and contain only essential details.
  4. Disposal of equipment using flammable refrigerants: See national regulations.
  5. Storage of equipment/appliances: The storage of the appliance should be in accordance with the applicable regulations or instructions, whichever is more stringent.
  6. Storage of packed (unsold) equipment: Storage package protection should be constructed in such a way that mechanical damage to the equipment inside the package will not cause a leak of the REFRIGERANT CHARGE. The maximum number of pieces of equipment permitted to be stored together will be determined by local regulations.

Requirements for Operation, Service and Installation Manuals of Appliances using Flammable Refrigerants

Qualification of workers

The manual shall contain specific information about the required qualification of the working personnel for maintenance, service and repair operations. Every working procedure that affects safety means shall only be carried out by competent persons.

Examples for such working procedures are:
Competence of service personnel
  1. General: Information of procedures additional to usual information for refrigerating appliance installation, repair, maintenance and decommission procedures is required when an appliance with FLAMMABLE REFRIGERANT is affected. The training of these procedures is carried out by national training organisations or manufacturers that are accredited to teach the relevant national competency standards that may be set in legislation. The achieved competence should be documented by a certificate.

Information and training

  1. 2.1) The training should include the substance of the following.
  2. 2.2) Information about the explosion potential of FLAMMABLE REFRIGERANTS to show that flammables may be dangerous when handled without care.
  3. 2.3) Information about POTENTIAL IGNITION SOURCES, especially those that are not obvious, such as lighters, light switches, vacuum cleaners, electric heaters.
  4. 2.4) Information about the different safety concepts:
    • Unventilated—Safety of the appliance does not depend on ventilation of the housing.
    • Switching off the appliance or opening of the housing has no significant effect on the safety.
    • Nevertheless, it is possible that leaking refrigerant may accumulate inside the enclosure and flammable atmosphere will be released when the enclosure is opened.
    • Ventilated enclosure—Safety of the appliance depends on ventilation of the housing.
    • Switching off the appliance or opening of the enclosure has a significant effect on the safety.
    • Care should be taken to ensure sufficient ventilation before.
    • Ventilated room—Safety of the appliance depends on the ventilation of the room.
    • Switching off the appliance or opening of the housing has no significant effect on the safety.
    • The ventilation of the room shall not be switched off during repair procedures.
  5. 2.5) Information about refrigerant detectors:
    • Principle of function, including influences on the operation.
    • Procedures, how to repair, check or replace a refrigerant detector or parts of it in a safe way.
    • Procedures, how to disable a refrigerant detector in case of repair work on the refrigerant carrying parts.
  6. 2.6) Information about the concept of sealed components and sealed enclosures according to IEC60079-15:2010.
  7. 2.7) Information about the correct working procedures:
    • a) Commissioning: Ensure that the floor area is sufficient for the REFRIGERANT CHARGE or that the ventilation duct is assembled in a correct manner. Connect the pipes and carry out a leak test before charging with refrigerant. Check safety equipment before putting into service.
    • b) Maintenance: Portable equipment shall be repaired outside or in a workshop specially equipped for servicing units with FLAMMABLE REFRIGERANTS. Ensure sufficient ventilation at the repair place. Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak is possible. Discharge capacitors in a way that won't cause any spark. The standard procedure to short circuit the capacitor terminals usually creates sparks. Reassemble sealed enclosures accurately. If seals are worn, replace them. Check safety equipment before putting into service.
    • c) Repair: Portable equipment shall be repaired outside or in a workshop specially equipped for servicing units with FLAMMABLE REFRIGERANTS. Ensure sufficient ventilation at the repair place. Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak is possible. Discharge capacitors in a way that won't cause any spark.

Maintenance & Cleaning (Continued)

Information on servicing

  1. General: The manual shall contain specific information for service personnel according.
  2. Checks to the area: Prior to beginning work on systems containing FLAMMABLE REFRIGERANTS, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the REFRIGERATING SYSTEM
  3. Work procedure: Work shall be undertaken under a controlled procedure so as to minimise the risk of a flammable gas or vapour being present while the work is being performed.
  4. General work area: All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out. Work in confined spaces shall be avoided.
  5. Checking for presence of refrigerant: The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is aware of potentially toxic or flammable atmospheres. Ensure that the leak detection equipment being used is suitable for use with all applicable refrigerants, i. e. non-sparking, adequately sealed or intrinsically safe.
  6. Presence of fire extinguisher: If any hot work is to be conducted on the refrigerating equipment or any associated parts, appropriate fire extinguishing equipment shall be available to hand. Have a dry powder or CO2 fire extinguisher adjacent to the charging area.

Maintenance & Cleaning (Continued)

  1. a) Commissioning: Ensure that the floor area is sufficient for the REFRIGERANT CHARGE or that the ventilation duct is assembled in a correct manner. Connect the pipes and carry out a leak test before charging with refrigerant. Check safety equipment before putting into service.
  2. b) Maintenance: Portable equipment shall be repaired outside or in a workshop specially equipped for servicing units with FLAMMABLE REFRIGERANTS. Ensure sufficient ventilation at the repair place. Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak is possible. Discharge capacitors in a way that won't cause any spark. The standard procedure to short circuit the capacitor terminals usually creates sparks. Reassemble sealed enclosures accurately. If seals are worn, replace them. Check safety equipment before putting into service.
  3. c) Repair: Portable equipment shall be repaired outside or in a workshop specially equipped for servicing units with FLAMMABLE REFRIGERANTS. Ensure sufficient ventilation at the repair place. Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak is possible. Discharge capacitors in a way that won't cause any spark.
  4. d) Decommissioning: If the safety is affected when the equipment is putted out of service, the REFRIGERANT CHARGE shall be removed before decommissioning. Ensure sufficient ventilation at the equipment location. Be aware that malfunction of the equipment may be caused by refrigerant loss and a refrigerant leak is possible. Discharge capacitors in a way that won't cause any spark. Remove the refrigerant. If the recovery is not required by national regulations, drain the refrigerant to the outside. Take care that the drained refrigerant will not cause any danger. In doubt, one person should guard the outlet. Take special care that drained refrigerant will not float back into the building.

Maintenance & Cleaning (Continued)

  1. 7. No ignition sources: No person carrying out work in relation to a REFRIGERATING SYSTEM which involves exposing any pipe work shall use any sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal, during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. "No Smoking" signs shall be displayed.
  2. 8. Ventilated area: Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should safely disperse any released refrigerant and preferably expel it externally into the atmosphere.
  3. 9. Checks to the refrigerating equipment: Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all times the manufacturer's maintenance and service guidelines shall be followed. If in doubt, consult the manufacturer's technical department for assistance. The following checks shall be applied to installations using FLAMMABLE REFRIGERANTS:
    • the actual REFRIGERANT CHARGE is in accordance with the room size within which the refrigerant containing parts are installed;
    • the ventilation machinery and outlets are operating adequately and are not obstructed;
    • if an indirect refrigerating circuit is being used, the secondary circuit shall be checked for the presence of refrigerant;
    • marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected;
    • refrigerating pipe or components are installed in a position where they are unlikely to be exposed to any substance which may corrode refrigerant containing components, unless the components are constructed of materials which are inherently resistant to being corroded or are suitably protected against being so corroded.
  4. 10. Checks to electrical devices: Repair and maintenance to electrical components shall include initial safety checks and component inspection procedures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an adequate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised. Initial safety checks shall include:
    • that capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;
    • that no live electrical components and wiring are exposed while charging, recovering or purging the system;
    • that there is continuity of earth bonding.

Maintenance & Cleaning (Continued)

  1. 11. Repairs to sealed components:
    • During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn of a potentially hazardous situation.
    • Sealed electrical components shall be replaced.
  2. 12. Repair to intrinsically safe components: Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinsically safe components must be replaced. Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in the atmosphere from a leak.
  3. 13. Cabling: Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such as compressors or fans.
  4. 14. Detection of flammable refrigerants: Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks. A halide torch (or any other detector using a naked flame) shall not be used. The following leak detection methods are deemed acceptable for all refrigerant systems. Electronic leak detectors may be used to detect refrigerant leaks but, in the case of FLAMMABLE REFRIGERANTS, the sensitivity may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.) Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equipment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed, and the appropriate percentage of gas (25% maximum) is confirmed. Leak detection fluids are also suitable for use with most refrigerants but the use of detergents containing chlorine shall be avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work. If a leak is suspected, all naked flames shall be removed/extinguished. If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or isolated (by means of shut off valves) in a part of the system remote from the leak. Removal of refrigerant shall be according to Removal and evacuation.
  5. 15. Removal and evacuation: When breaking into the refrigerant circuit to make repairs -or for any other purpose- conventional procedures shall be used. However, for flammable refrigerants it is important that best practice be followed, since flammability is a consideration.

Maintenance & Cleaning (Continued)

Models: DP1201B, DP1201B High Capacity Commercial Dehumidifier, DP1201B, High Capacity Commercial Dehumidifier, Commercial Dehumidifier, Dehumidifier

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