Lonove MD751 User manual

DEHUMIDIFIER USER MANUAL
MODEL:MD751
WELCOME
! PLEASE READ THIS INSTRUCTIONS CAREFULLY AND KEEP FOR FUTURE REFERENCE.

SPECIFICATIONS
Capacity
Approx 750ml per day at 30℃(86℉), 80% RH
Cooling element
Thermo-electric Peltier module
Fan
90mm x 90mm DC Brushless motor
Power adapter
15V DC 4Amp
Power consumption
60W
Water tank capacity
2000ml/68 oz
Water level detector
When the water tank is full, the yellow indicator
light is on and the green indicator light is flashing
Drying feature
Warm air outlet for drying purposes
Product dimension
20cm(L)x20cm(W)x32.5cm(H);7.87in*7.87in*12.8in
Working environment
Temperature：15℃-40℃(59℉-104℉) Humidity
＞45%RH
TERMS & CONDITIONS
How to Get a Better Result of Dehumidification
1. Before using the dehumidifier, please check whether the environmental humidity and
temperature have met basic requirements.
Operating temperature: 59℉-104℉(15℃-40℃ )
Operating humidity: >45%RH
2. Close the doors and windows when you run this room dehumidifier
3. Keep the front air inlet and the back outlet of this electric dehumidifier free from blocking
4. Best for spaces smaller than 450 sq ft, such as living room, bathroom, bedrooms, kitchen,
garage, basement, office, RV, etc.
Imporatant Notes:
The effect of this dehumidifier is related to the temperature, the humidity and the size of the
room. The more humid, the better effect.The smaller the room, the better effect.
When you run the dehumidifier in winter, please make sure that the room has enough
warmth, which can help the dehumidifier work better, avoid frosting affecting the
dehumidification effect.
If the air temperature is ＜59℉ (15 ℃), the effect of dehumidification is not
obvious, and it will not work ＜41°F(5℃).
If the humidity is ＜60%RH, the dehumidifier usually does not remove 25oz
(750ml) a day.
Since the principle of our product is semiconductor dehumidification, so it needs about 2-3
days to see a significant dehumidification effect.

How DOES IT WORK?
The MD751 Dehumidifier works by way of thermoelectric cooling,
which uses what's known as the Peltier effect to create a heat flux
between the junction of two different types of materials. Using no
compressors or moving parts. The device quietly pulls moisture from the air around it.
Removing muskiness and dampness from the room.
PRODUCT DETAILS
1.On/Off button 7. Yellow "F ull" LED 14.DC Power socket
2.Humidity key (Increase) 8&9.Air inlet 15.Hydraulic cut-off
3.Humidity key (Decrease) 10.Air outlet 16. Water inlet
4.LED humidity display 11.Water tank 17.DC Plug
5.Power indicator(green light) 12.Drain hole 18.Adaptor
6.Wind speed LED （ Night mode ） 13.Air outlet 19.AC Plug

UNIT OPERATION
A. Device Operation:
1. After removing the packaging materials, there should be 3 items: A. LONOVE
dehumidifier, B. AC/DC power adaptor, C.Drain Pipe
2. Use the AC power supply. Install the water tank into the dehumidifier; plug the DC
power jack of AC/DC power adaptor to the DC Power Socket of the appliance, and then
plug the adaptor into the socket outlet.
3. This dehumidifier has two working modes(Day-mode and Night-mode).
(1)Press the “ON/OFF” Button to Day-mode, the green indicator light is on and the
dehumidification effect is the most powerful, the noise level is between 35-45 dB.
(2)Long press the “ON/OFF” button to Night-mode, the wind speed LED light is on, the
noise level is<35 dB, and the dehumidification effect will be relatively weak.
4. This dehumidifier will stop the dehumidification automatically when the water reaches
the level, the yellow indicator light is on and the green indicator light is flashing when
the water tank is full.
5. When the water tank is full, please cut off the power before pouring and then take out the
water tank from the machine. After pouring out the water, put the water tank back to the
correct position in the machine.
6. To switch off the unit, press “ON/OFF” Button. Please unplug the power cord if you do
not use the dehumidifier.
B. Description of Indicator lights:
Green Light: when the light shows in Green, means the unit is working.
Yellow Light is on and Green Light is Flashing: means the water tank is full, reach the
water level or the water tank is in a wrong position.
C. Setting Relative Humidity Levels:
The MD751 Dehumidifier features an advanced humidistat function. You can set your
desired relative humidity level in the range of 40%-80%. When RH levels increase beyond
your set level by the value of 5% the machine automatically turns on. When RH levels
decrease below your set level by a value of 5% ，the machine automatically turns off. By
default, the unit is set to 50%RH.
To set your desired level:
1. Toggle On/Off Switch to On position;
2. Wait a few seconds until RH Level Display reads the current RH level;
3. Depress the RH Up/Down Buttons or to select your desired RH level;
4. The display screen flashes 3 times and then returns to display the current environment RH.
D. How to Install the Drain Pipe:
1. Pull out the water tank;
2. Remove the soft rubber plug on the Drain hole;
3. Connect Drain hole and Drain Pipe.

QUESTIONS AND ANSWERS
1. Will this dehumidifier stop working when temperature under 59℉（15℃）?
When the ambient temperature is lower than 59℉（15℃）, the temperature inside the dehumidifier
is less than 41°F(5℃). At this time, the inside of the dehumidifier may freeze or frost, resulting in
a poor dehumidification effect, even zero.
2. Does the power cord/adapter get hot when using?
According to the working principle, the dehumidifier needs the power to operate and the it needs
time to dehumidify, the adapter will get warm but can be touched when using.
But for your safety, we do not recommend children to touch it.
3. Why is the dehumidification speed so slow? Only collect little water past 8 hours?
This dehumidifier is an electric semiconductor dehumidifier, it features quiet operation and stable
dehumidification effect. Best for household space smaller than 450sq.ft. While other
dehumidifiers with compressor are noisy and only for industrial use.
In general, the water tank will fill up to 80% in 2-3 days in the case of indoor ventilation and
humidity ＞60%RH.
4. Will it make a very loud noise when using in the bedroom?
This dehumidifier has two working modes. During normal operation, the noise level is ＜45dB.
And when you long-press the “ON/OFF” button to enter night mode, the noise level is ＜30dB. It
is very friendly for sleeping, you will not hear a loud noise when it working at night.
5. Does it work with 220 voltage?
Yes. The voltage of this dehumidifier is 110V -240V, it can work with 220 voltage. But the plug
type is subject to the country.
6. Can I keep running it all the time?
Actually, we do not recommend you run it all the time. Please cut off the power cord after 24
hours running and let it rest for at least 10 minutes. That would be better for using lifespan.
SAFETY INSTRUCTIONS
► Keep the unit in an upright position whenever in use.
► To avoid electric shock, avoid opening the unit.
► Always turn the device off when not in use.
► Avoid using a power adapter In excessively wet area.
► Ensure that inlet and outlet grilles are unobstructed.
► Use both hands when handling the unit to avoid tilting.
► Keep devices away from the reach of children.

TROUBLE SHOOTING
Problem
Possible Cause
Solution
The “Green
LED” is
flashing first
when power
connected
The water tank is
full or in wrong
position
Empty the water tank and replace it in correct position
The float gets
jammed
Press the float and replace the water tank
The
dehumidifier
doesn’t work
The power
supply is cut off
Check if the adaptor is plugged in
DC power socket
loose
Check the DC power socket and the power cord, ensure
it is connected well
The air outlet is
blocked
Maintain the minimum clearance at least 10cm around
the dehumidifier when the unit is operating