Oulun D4250E User manual

INSTRUCTION MANUAL
DEHUMIDIFIER
Item NO:D4250E
Applicable Model: OL50-506E
Please keep this manual for future reference!
Thank you for selecting our dehumidifiers. This manual details the proper use and
maintenance of these dehumidifiers. Please take a few minutes to read this
manual, and keep it for further reference.

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1.BEFORE YOU BEGIN
1.1 PRODUCT DESCRIPTION
The dehumidifier is used to remove excessive moisture from the air. The
resulting reduction in relative humidity protects buildings and their contents
from the adverse effects of excess humidity.
1.2 THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
●This appliance is intended to be used by experts or trained users in shops,
light industry and on farms, or for commercial use by lay persons.
●This appliance can be used by children aged 8 and above and persons with
reduced physical, sensory or mental capabilities or lack of experience and
knowledge if they have been given supervision or instruction concerning use of
the appliance in a safe way and understand the hazards involved. Children
shall not play with the appliance. Cleaning and user maintenance shall not be
made by children without supervision.
●The refrigerant loop is sealed. Only a qualified technician should
attempt to service!
●Do not discharge the refrigerant into the atmosphere.
PLEASE KEEP THE MACHINE STAND UPRIGTH FOR 6 HOURS
BEFORE YOUR FIRST TIME USE
PLEASE ALWAYS KEEP THE MACHINE UPRIGHT WHEN USING

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2.IMPORTANT SAFETY INSTRUCTIONS
Your safety is the most important thing we concerned!
2.1 OPERATIONAL PRECAUTIONS
WARNING- to reduce the risk of fire, electric shock or injury to
persons or property:
If the supply cord is damaged, it must be replaced by the manufacturer,
its service agent or similarly qualified persons in order to avoid a hazard.
The sound pressure level is below 70 dB.
The appliance shall be disconnected from its power source during
maintenance.
Always operate the unit from a power source of equal voltage,
frequency and rating as indicated on the product identification plate.
Always use a power outlet that is grounded.
Unplug the power cord when cleaning the machine or not using it.
Do not operate with wet hands. Prevent water from spilling onto the
unit.
Do not immerse or expose the unit to rain, moisture or any other liquid.
Do not leave the unit running unattended. Do not tilt or turn over the
unit.
Do not unplug while the unit is operating.
Do not unplug by pulling on the power cord.
Do not use an extension cord or an adapter plug.
Do not put objects on the unit.
Do not climb or sit on the unit.
Do not insert fingers or other objects into the air outlet.
Do not touch the air inlet or the aluminum fins of the unit.

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Do not operate the unit if it is dropped, damaged or showing signs of
product malfunction.
Do not clean the appliance with any chemicals.
The unit shall be installed in accordance with national wiring
regulations.
Do not use means to accelerate the defrosting process or cleaning,
other than those recommended by the manufacture.
The appliance shall be stored in a room without continuously operation
sources (for example: open flames, an operating gas appliance or an
operating electric heater).
The appliance shall be stored so as to prevent mechanical damage
from occurring.
Do not burn, even after use.
Compliance with national gas regulations shall be observed.
Keep any required ventilation openings clear of obstruction.
3.FEATURES
Large Capacity
Movable and Easy to Store
Built-in Auto Defrost System to protect key working components
Adjustable Humidity
Timed Operation
Quiet Running
Energy-Saving Design

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4.SPECIFICATIONS
Model No.
OL50-506E
Dehumidifying Capacity
42Pints/Day @ 65˚F, 60% RH
70 Pints/Day @ 80˚F, 60% RH
110 Pints/Day @ 86˚F, 80% RH
Power Supply
AC115V/60Hz
Power Consumption & Current
635W/ 6.0 A @ 80˚F, 60% RH
728W/ 6.75 A @ 86˚F, 80% RH
Refrigerant Charge
R410A/11.6oz(330g)
Net Weight
36Kg/79.3 LBS

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5.PRODUCT DRAWINGS
Control Panel
Air Inlet
Big Wheel
Air Outlet
Hook
Radiator Grille
Pushing Handle
Handle

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6.INSTALLATION
6.1 Drainage Installation
1) When the tank is full, the “FULL” light will turn on.
2) The unit will also make a buzzing sound. To stop this, press the
power button to turn off the machine.
3) To clear the water tank, open the front panel to access the water
tank.
4) Grab the handle of the water tank and pull it out horizontally.
5) After disposing of the water, replace the tank and close the front
panel.
Continuous Drainage
In extremely wet conditions, the tank may need frequent clearing.

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It can be set up to continuous drainage by doing the following:
1. Open the front cover, remove the tank, and drain the water in
the tank.
2. Remove the plug and install the included drain pipe to the
connector, direct the pipe to the desired area before operating the
machine. See the pictures below.
3. Make sure the water tank and drain pipe are not blocked, close
the front panel.
4. When you do not use continuous drainage and turn to use water
tank again, just use the plug to stop the water outflow from the
connector.
WARNING: Do not block the drainage hose. The end of the drainage
pipe should not be higher than the outlet hole. If the drainage
Continuous drainage pipe

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pipe end is higher than the outlet hole, water will not drain
properly and could damage components of the unit.
7.MACHINE SETUP AND OPERATION
7.1 Button Function
(1)
Press this button in the power-on state, screen light will be on, the
machine automatically goes to continuous mode, display screen shows
environmental humidity, the compressor will be on after the fan runs for 3
seconds; press this button again, the compressor stops, display screen
shows “- -”, machine goes to standby mode, fan will run for another
minute and then stop.
(2)
Press this button while machine is powered on, until button light goes on,
press “MINUS”“ADD”to set the boot time, when the countdown is over,
fan and compressor start to work.
Press this button button while machine is running, until the button light
goes on, press “MINUS”“ADD”to set the shutdown time, when the
countdown is over, fan and compressor stop working.
Press this button for 3 seconds to show the current temperature, and it

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will return to current humidity after 10 seconds. Press this button for a
while to show the temperature.
(3)
In normal mode, press this button to increase the humidity, humidity
increase 5%RH with each press, buzzer rang each time with the press,
press the button for 1 second can increase the humidity continuously;
press this button to set the time after pressing “TIMER”.
(4)
In normal mode, press this button to decrease the humidity, humidity
decrease 5%RH with each press, buzzer rang each time with the press,
press the button for 1 second can decrease the humidity continuously;
press this button to set the time after press “TIMER”.
Note:
1) The default humidity is 50%RH, the increase and decrease is as
follow:
20%-25%-30%-35%-40%-45%-50%-55%-60%-65%-70%-75%-80%-85
%-90%
2) Environmental humidity and machine set humidity will decide the
status of compressor and fan as follow:
Environmental humidity≥machine set humidity+3% ,compressor and fan
start running.
Environmental humidity＜machine set humidity+3%,compressor and fan
stop running.
Press continue button in continuous mode, switch to normal
dehumidification mode, set the humidity manually.
(5)
Continuous mode---(display screen shows current humidity) the machine
keeps running, continuous mode light is on, humidity set is invalid, time

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set is available.Press continuous mode to switch to normal mode,
continuous mode light is off, humidity set is operational.
7.2 Accessories
1)Water Pipe 1pcs
2)Instruction manual 1pcs
3)Pushing Handle 1pcs
4)Fixed screw 2pcs
5)Water plug 1pcs
7.3 Operation
1) If the water tank is full for 5 minutes, alarm goes on, water tank light
turns red, buzzer rang 15 times, the compressor and the fan stop, after
emptying the water tank, machine automatically switch to the previous
mode, the self-protect of compressor will start after 3 minutes. Alarm will
stop in 3 seconds after the water tank was emptied and put back, the fan
and the compressor will start in 3 minutes.
2) Compressor will not need 3 minutes for self-protect if it is the first time
to start the machine, press “POWER” to turn off the power; turn on the
power, press “POWER”, the compressor will start immediately.
3) The system has auto memory. When all the mode setting has been
finished, if there is sudden power cut during operation, or the power jack
slips out, the system may store the current status before the power is cut
and enter the previous operation mode before power cut automatically
after power is supplied.
7.4 Defrost Function
1) Environmental temperature ＜41˚F, or environmental
temperature >100˚F, compressor and fan stop.
2) Defrost requirement:
Compressor runs for 30 minutes, temperature
sensor senses the temperature ≤30˚F(last for 10 seconds),
compressor stops, defrost starts,fan continues, defrost light turns on,
when the pipe temperature goes to 41˚F or the defrost lasts for 15
minutes, defrost stops.
Note: during defrost, light won’t be off until the defrost is over.

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8.ERROR CODE
(1) “E1”: If the temperature sensor got failure, it will show “E1”. The
system works in circle of dehumidification for 30 minutes and
defrosting for 15 minutes. We should replace the faulty temperature
sensor with a new one.
(2) “E2”: If the humidity sensor got failure, it will show “E2”. The humidity
adjusting button will not work. The system works in circle of
dehumidification for 30 minutes and defrosting for 15 minutes. We
should replace the faulty humidity sensor with a new one.
(3) “CL”: When the room temperature ＜41˚F, it will show ”CL”, the
machine stops running.
(4) “CH”: When the room temperature ＞100˚F, it will show “CH”, the
machine stops running.
(5) “LO”: When the room humidity ＜20%RH, it will show “LO”, the
machine stops running.
(6) “HI”: When the room humidity≥95%RH, it will show “HI”, the
machine is working normally.
9.MAINTENANCE
9.1 Clean the machine with a soft wet cloth.
9.2 Pull the louver on the front panel out to gain access to the
filter.
9.3 Remove the filter mesh out of the unit.
9.4 Use a clean rag to adsorb the dust on the filter mesh surface.
If the filter is extremely dirty, use tap water to flush the filter. Fully
dry the filter before putting it back into the air inlet fence. A clean
filter can increase the machine’s capacity.

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10.MACHINE STORAGE
If you don’t use the unit for an extended period of time, please store it
follow the following steps:
(1) Clean the filter mesh.
(2) ATTENTION: The evaporator inside the machine has to be dried out
before the unit is packed to avoid component damage and molds.
Unplug the unit and place it in a dry open area for days to dry it out.
Another way to dry the unit is to set the humidity point more than 2%
higher than the ambient humidity to force the fan to dry the evaporator
for a couple of hours.
(3) Collect the power cord, bunch it, and hung it in the power cord pocket
at the back of unit.
(4) Store in a clean, dry environment.

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11.TROUBLE SHOOTING
Please confirm by after-sale service for the following conditions.
Trouble
Cause
Solution
Machine does not run
Unit is not plugged in.
Plug in the unit.
Room temperature is under
41˚F or above 100˚F.
To protect the machine, use it only
when ambient temperature is between
41-100˚F.
Machine runs but does
not dehumidify
When the humidity set point is
3% higher than ambient
humidity.
Reset the humidity to a lower set
point, or power off the machine if the
humidity has satisfied you.
Reduced dehumidifier
capacity
Filter mesh jammed.
Clean the filter mesh according to
manual.
Air-in and/or Air-out louvers
jammed.
Clear the blockage from Air-in and/or
Air-out louvers.
No air inlet
Filter mesh or air-in louver
jammed.
Clean the filter according to
instructions or clean the louver
blockage.
Loud Operation
Machine is situated on an
incline or decline slope.
Move it to flat ground.
Filter mesh jammed.
Clean the filter mesh according to
instructions.
Cautions: Switch off the unit and unplug it
immediately if anything abnormal happens. Then
contact a qualified electrician.
Do not dispose of electrical appliances as unsorted municipal
waste, use separate collection facilities.
Contact your local government for information regarding the
collection systems available.

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Thank you for purchasing this product! If you have any questions about
the product, such as missing parts, damaged products, product
assembling, and operation, please contact us via Amazon Message or
customer service number: 213-4467172 or 661-4358826
IMPORTANT
Please call our customer service department for any consulting:
213-4467172
661-4358826
(8:30am - 5:30pm P.S.T.)
DATED PROOF OF PURCHASE IS REQUIRED FOR WARRANTY
SERVICE.
AVIS
Veuillez appeler le service à la clientèle pour toutes questions au:
213-4467172
661-4358826
(8:30am - 5:30pm P.S.T.)
PREUVE D’ACHAT ORIGINALE REQUISE POUR SERVICE DE
GARANTIE.
IMPORTANTE
Sólo hay que llamar nuestro departamento de servicio
al cliente en caso de tener preguntas o inquietudes:
213-4467172
661-4358826
(8:30am - 5:30pm P.S.T.)
SE REQUIERE PRUEBA DE COMPRA CON FECHA PARA SERVICIO
BAJO GARANTÍA.
Address : 9733 Topanga Canyon Blvd. APT310, Chatsworth, CA 91311
Phone: [phone] or 661-4358826