MASTER DH-732P Professional Dehumidifier User Manual

: June 6, 2024
: MASTER

Table of Contents

TECHNICAL DATA
HOW IT WORKS
WHERE TO POSITION
BEFORE USE CAUTION!
- GENERAL CAUTIONS
PARTS
OPERATION
DRAINAGE
MAINTENANCE
- FILTER CLEANING (FIG. 8)
- STORAGE
TROUBLE SHOOTING
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

MASTER DH-732P Professional Dehumidifier

TECHNICAL DATA

MODEL

|

DH 732 P

---|---
|

~220V-240V-B / 50Hz – Гц 500W – Вт / 2,2A

|

30 l/day – л / 24ч

|

Rotary

|

R-290 0,12kg – кг

|

200 m3 /h – м3 /ч

|

5 ~ 35ºC

|

35 ~ 95%

|

6.5 L – л

|

358 x 338 x 550 mm – мм

|

18,5 kg – кг

CO2 Eq

| 0,0004

GWP

| 3

HOW IT WORKS

FIG. 1

dry warmer air,
condenser (warmed coil),
evaporator (cold refrigerated coil),
moist saturated air,
filter,
water tank,
motor,
fan,
compressor.

WHERE TO POSITION

Excess moisture will travel throughout your home, just like the cooking smells waft to every room in the house. For this reason, the dehumidifier should be positioned in a way that allows it to draw this moist air towards it from all over the home.
Alternatively, if you have a serious problem in one area you can begin with positioning the dehumidifier close to this area and later moving gradually closer to the central point. When positioning the dehumidifier, ensure that it is placed on a level surface and that there is a minimum of 10 cm (4”) of space on either side of the unit to allow an efficient airflow.
This dehumidifier is equipped with castors for extra mobility, if you move the unit, it should first be switched off and the water tank emptied.
The use of an extension lead is not recommended, so please ensure that the unit is close enough to a fixed mains socket. If it is necessary to use an extension lead, please ensure the diameter of the wires of the cable is at least 1 mm2 .
When the dehumidifier is in operation, outside doors and windows should be closed, when necessary, for more efficient use .

BEFORE USE CAUTION!

These symbols on your device mean:

This appliance is filled with Propane gas R290. Follow strictly the manufacturer’s instruction concerning use and repairs!
Before using the machine, read carefully the entire instruction manual.
Do not install, operate or store the device in a room smaller than 4m2.

GENERAL CAUTIONS

FOR INDOOR USE ONLY.
Do not use in cabinet, closet, boats, caravans or similar locations.
Do not use the unit in swimming pools, washrooms or similar wet areas.
Leave the unit to stand for 12hours before connecting to the mains supply after transport or when it has been titled (ex. During cleaning).
Only use the unit in the upright position on a flat level surface (even during transport!) and at least 50cm from any objects.
Do not use the unit in a potentially explosive environment containing combustible liquids, gases or dusts.
Do not use the appliance in the vicinity of flammable or explosive substances or fuels. Never use any paint, cleaning sprays, anti-insect sprays or similar near the unit; this could deform the plastic or cause electrical damage.
Ensure that there is at least 50cm between the sides of the appliance and any flammable, heating materials.
Do not place objects on the unit or restrict air inlet/outlet.
Avoid the unit from splash.
Closely supervise any children and pets when the unit is in use.
CHILDREN SHALL NOT PLAY WITH APPLIANCE.
Cleaning and user maintenance shall not be made by children without supervision
Switch off and unplug the unit when not in use.
Never leave a functioning device unsupervised.
Do not pull the unit along by the cord. Avoid over-twisting, -coiling, -pulling the power cord, never use nylon or iron wire to tide the power cord.
Make sure that the plug and socket remain visible and accessible at all the time.
Do not use extension cords.
Never reach to retrieve the unit if it has fallen in water. In such case, immediately pull the plug. Have the unit checked before using it again.
The appliance shall be installed in accordance with national wiring regulations.
Do not exceed the recommended room size for max. efficiency.
Close the doors and windows.
Keep curtains or blinds closed during the sunniest hours of the day.
Keep filters clean.
Once room has reached the desired conditions, reduce the setting for temperature and ventilation.
Do not turn on the appliance if you have discovered damage to the appliance, cord or plug, if the appliance is malfunctioning or if there are signs of any other defect. Return the complete product to the vendor or to a certified electrician for inspection and/or repair. Always ask for original parts. The appliance (incl. cord and plug) may only be opened and/or repaired by properly authorized and qualified persons. Suggest to send the unit for professional maintenance periodically.
ONLY A LICENSED PROFESSIONAL IS ALLOWED TO DISMANTLE OR MODIFY THE APPLIANCE.
THE MACHINE IS TO BE USED ONLY FOR ITS PRESCRIBED PURPOSE. ANY OTHER USE IS DEEMED TO BE A CASE OF MISUSE. THE USER/OPERATOR, NOTTHE MANUFACTUER WILL BE LIABLE FOR ANY DAMAGE OR INJURIES OF ANY KIND CAUSED AS A RESULT OF THIS.
Always keep the unit in vertical position.
Keep all foreign objects away from the air intake or output openings.
The mains supply must conform to the specification shown on the rating plate at the back of the unit.
If the supply cord is damaged, it must be replaced by an approved service representative or a similar qualified person in order to avoid a hazard.
Never use the plug to start and stop the unit. Always use switch on the control panel.
Before moving the unit, first switch off, then unplug and empty the water tank.
Don’t use bug sprays or other flammable cleaners on the unit.
Never pour or spray water over the unit.
THIS APPLIANCE IS NOT INTENDED FOR USE BY PERSONS (INCLUDING CHILDREN) WITH REDUCED PHYSICAL , SENSORY OR MENTAL CAPABILITIES, OR LACK OF EXPERIENCE AND KNOWLEDGE , UNLESS THEY HAVE BEEN GIVEN SUPERVISION OR INSTRUCTION CONCERNING USE OF THE APPLIANCE BY A PERSON RESPONSIBLE FOR THEIR SAFETY. CHILDREN SHOULD BE SUPERVISED TO ENSURE THAT THEY DO NOT PLAY WITH APPLIANCE.

►► SAFETY RELATING TO REFRIGERANT R290:

Read these warnings carefully
This appliance contains the refrigerant R290. R290 is a refrigerant that complies with the relevant European Directives. Never perforate the refrigerant circuit. R290 is flammable (GWP3)!
Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manufacturer.
The appliance shall be stored in a room without continuously operating ignition sources (for example: open flames, an operating gas appliance or an operating electric heater).
Do not pierce or burn any of the components of the cooling circuit of the unit. Do not set light to the unit.
The appliance shall be stored so as to prevent mechanical damage from occurring.
Appliance should be installed, operated and stored in a room with a floor area larger than 4m2.
Be aware that the refrigerants may not contain an odour, which means you cannot smell leaks.
Compliance with national gas regulations shall be observed.
Keep ventilation openings clear of obstruction.
A warning that the appliance shall be stored in a wellventilated area where the room size corresponds to the room area as specified for operation.
Any person who is involved with working on or breaking into a refrigerant circuit should hold a current valid certificate from an industry-accredited assessment authority, which authorizes their competence to handle refrigerants safely in accordance with an industry recognized assessment specification.
Servicing shall only be performed on the grounds as recommended by the equipment manufacturer. Maintenance and repair requiring the assistance of other skilled personnel shall be carried out under the supervision of the person competent in the use of flammable refrigerants.

IMPORTANT!
Do not use this unit at ambient temperatures below 5ºC, to prevent the evaporating coils from freezing up

PARTS

► FIG. 2

Metal housing
Handle
Control panel
Hour counter
Left panel
Caster
Filter
Water tank
Right panel

► FIG. 3

Position of the handle can be adjusted by pressing the button at the two ends of the handle.

OPERATION

► Control panel FIG. 4

Humidity display
Operation indicator
Defrost indicator
Memory indicator
Water tank full indicator
Memory button
Humidity up button
Humidity down button
ON/OFF (power) button
Plug the unit into a suitable mains socket (please refer to the rating label on the backside of the unit to check the appropriate voltage/frequency).
Press ON/OFF button to turn on the unit. When turning on the unit for the first time, if press only ON/FF button but not set the Memory, the compressor will start (provided the room humidity is higher than 50%).
Press the buttons Humidity up and Humidity down to set the required humidity. The setting range is 40%~80%, 1% will be added or reduced for each press. The set humidity will show on the LED display for 8 seconds, after that the display will return to show the room humidity. Once the set humidity is achieved, the compressor stops working automatically. Humidity range is 35%~95%, when the room humidity is less than 35%, the LED display shows “LO”, when the room humidity is higher than 95%, it shows “ HI”.
Press ON/OFF button again to turn off the unit.
When unit is turned on for the first time or immediately after shutoff, there is 3 minute delay protection for compressor.

DEFROST
Unit is equipped with the Hot Gas Defrost function. After running for 30 minutes, the coil sensor detects the coil temperature. If the coil temperature is ≤-1°C, the unit switches to the hot gas defrost mode, and the Defrost indicator is on. During the defrost process, the compressor and the fan keep running. It takes 5 minutes to defrost (if the coil temperature raises up to 10°C, the unit drops out of the defrost mode automatically).

MEMORY
By pressing Memory button, the memory indicator is on, and the unit remembers the last settings.

HOUR COUNTER FIG. 5

A special hour counter serves to count the operation time of the machine.
7-digit display counts off the operation time, it goes on continuously, never gets back to “zero”.

DRAINAGE

Please note that in case the water tank is not positioned appropriately, the water full indicator turns red. When the water tank is full, the compressor stops, as a protective measure, the “Water Tank Full” indicator turns red and buzz.
To remove the water tank, pull it out carefully from the unit, make sure it does not tilt over.
After empting the water tank, place the water tank into the dedicated space. Make sure it is positioned properly, only then the ’water full’ indicator is off and your dehumidifier can start working. (FIG. 6)

When the dehumidifier works in extremely high humidity levels, the water tank requires more frequent drainage. In this situation, it may be more convenient to set the unit up for continuous drainage, according to the following procedures:

Remove the drain knob and rubber plug and retain for future use.
Connect the drain tube to the water outlet (FIG. 7) and put the other end into a drain.

MAINTENANCE

Always unplug the unit from the mains supply before carrying out any maintenance or cleaning of the unit.

CASING CLEANING
Use soft cloth to clean the unit.
Don’t ever use volatile chemicals, gasoline, detergents, chemically treated clothes, or other cleansing solutions as they may damage the casing.

FILTER CLEANING (FIG. 8)

Extract the filter from the unit.
Use a vacuum cleaner or tap the filter lightly for easy cleaning. If the filter is excessively dirty, use warm water with a small amount of medium strength detergent.
Make sure the filter is completely dry before installing it back.
Do not expose the filter to sunlight.

STORAGE

If the unit is not used for an extended period of time, please:

Turn off the unit, unplug it and take away the AC cord.
Empty the water tank completely and dry it.
Cover the unit and store it in a place not exposed to the direct sunlight.

TROUBLE SHOOTING

THE UNIT DOES NOT OPERATE:

Is the unit plugged in?
Is the house electricity on?
Is the room temperature below 5OC or above 32OC? If so, then it is out of the working range of the unit.
Make sure the ON/OFF switch is turned on.
Check if the water tank is positioned properly inside the unit and if it is not full.
Make sure the air inlet and outlet are not obstructed.

THE UNIT SEEMS TO DO NOTHING:

Is the filter dusty, contaminated ?
Is the air intake or outlet blocked?
Is the room humidity already quite low?

THE UNIT SEEMS TO DO LITTLE:

Are too many windows or doors open?
Is there something in the room producing a lot of humidity?

THE UNIT IS TOO NOISY:

Check whether the unit is positioned on a level surface

THE UNIT IS LEAKING:

Make sure the unit is in appropriate condition.
If you are not using continuous drainage, make sure the rubber plug (on the bottom of the unit) is in its position.

Error codes on display

Code

| Cause|

Solution

E1| The room temperature sensor (with resin head) is open or short circuit fault| Checking if the room temperature sensor is plugged in properly on the PCB.
Replace the room temperature sensor of room temp.
Replace main PC board
The humidity level is below RH40%
E2| The system sensor (with copper head) is open or short circuit fault| Checking if the system sensor is plugged in properly on the PCB.
Replace the system sensor
Replace main PC board
E3| The Temperature Control (TC) sensor wire is loosen or breaks down.
The machine will beep for 3 sounds, the E3 code will flash on every one second. The compressor and fan motor will stop.| Pls check and replace it.
E5| When the TC sensor wire senses the temperature is > or = 130oC more than 5 seconds, the E5 code will flash on every second, the machine will beep for 3 sounds. The compressor and fan motor stop.| When it happens, pls press ON/OFF button on and off again to check if E5 signal still exists, if yes, that means the compressor system is abnormal. Pls check it and get rid of the mal- function.

CE CONFORMITY CERTIFICATE

We declare that it is compliant with:
2014/30/EU, 2014/35/EU, 2011/65/EU
EN 60335-1:2012+A11:2014+A13:2017,
EN 60335-2-40:2003+A11:2004+A12:2005+A1:2006+A2:2009+A13:2012,
EN 55014-1:2017, EN 55014-2:2015,
EN 61000-3-2:2014, EN 61000-3-3:2013, EN 62233:2008

Disposal of your old product

– You product is designed and manufactured with high quality materials and components, which can be recycled and reused.
– When this crossed-out wheeled bin symbol is attached to a product it means the product is covered by the European Directive 2002/96/EC.
– Please inform yourself about the local separate collection system for electrical and electronic products.
– Please act according to your local rules and do not dispose of your oldproduct with your normal household waste. The correct disposal of your old product will help prevent potential negative consequences for the environment and human health.