DH 751 - Humidifier Master - Free user manual and instructions

Brand	Master
Model	DH 751
Product type	Dehumidifier
Power supply	220-240 V / ~50 Hz
Tank capacity	Approximately 2.5 liters
Net weight	Approximately 12 kg
Dimensions (L × W × H)	Approximately 35 × 30 × 55 cm
Adjustable humidity range	30 % – 90 % RH
Continuous mode	Yes (display "CO")
Memory function	Yes
Automatic defrost	Yes
Full tank indicator	Yes
Filter type	Washable filter
Filter cleaning	At least once a month
Continuous drainage	Yes (via hose)
Operating temperature	5 °C to 35 °C
Power consumption	Approximately 250 W (estimated)
Noise level	Approximately 48 dB (estimated)
Included accessories	User manual
Repairability	Reserved for qualified personnel

Frequently Asked Questions - DH 751 Master

How to start the Master DH 751 dehumidifier?

Plug the appliance into a 230 V socket, then press the ON/OFF button. The work indicator lights up and the display shows the set humidity level (default 60%). After 3 seconds, the display shows the current level.

How to set the desired humidity?

Use the Increase and Decrease buttons to choose the humidity level between 30% and 90%. A single press changes the value by 1%, a long press by 5% per second. If the set level is 3% below the current level, the appliance starts operating.

What does the "CO" display mean?

The "CO" display indicates that the appliance is operating in continuous mode (permanent dehumidification), achieved by setting the humidity below 30%.

How to use the continuous drainage mode?

Remove the tank, open the valve at the bottom, attach a drainage hose, replace the tank and route the hose through the designated opening. Ensure the ambient temperature remains above 0 °C to prevent freezing.

What to do if the tank is full?

The full tank indicator lights up and the appliance beeps every 5 minutes. Empty the tank and replace it. The appliance restarts automatically.

How to clean the filter?

Turn off and unplug the appliance. Open the front panel (tank side), remove the filter, clean it with lukewarm water and mild detergent (≤ 40 °C) or with a vacuum cleaner. Let it dry completely before reinstalling. Clean it at least once a month.

The appliance does not start, what should I do?

Check: the power supply, that the ON/OFF button is properly pressed, that the plug is correctly inserted, that the fuse has not blown, and that the tank is not full. If the problem persists, contact a professional.

Why is dehumidification insufficient?

Possible causes: dirty filter (clean it), blocked air intake or outlet (clear the passages), open doors or windows (close them), or refrigerant leak (contact the seller).

The appliance makes strange noises, is this normal?

A refrigerant circulation noise at start or stop is normal. However, if the appliance is not stable (place it on a flat surface) or if the filter is dirty (clean it), abnormal noises may occur.

How to interpret error codes E1 and E2?

E1 indicates a humidity sensor defect. E2 indicates a sensor defect in the refrigeration system. In both cases, unplug the appliance and contact an authorized repair service.

USER MANUAL DH 751 Master

Solid dark gray gradient background with no text, symbols, or discernible objects

MCS Italy S.p.A.

Via Tione 12,-37010-

Pastrengo (VR), Italy

[e-mail]

MCS Central Europe Sp. z o.o.

ul. Magazynowa 5A,

62-023 Gądki, Poland

[e-mail]

MCS Russia LLC

ul. Transportnaya - 22 ownership 2,

142802, STUPINO, Moscow region, Russia

[e-mail]

MCS China LTD

Unit A1, No. 1515, Jinshao Rd.,

Baoshan Industrial Zone

Shanghai, 200949, China

[e-mail]

MCS Italy S.p.A.

Виа Тионе, 12. 37010

MCS Central Europe Sp. z o.o.

ул. Магазинова, 5А,

HEFTE FOR BRUK OG VEDLIKEHOLD

INSTRUKCJA OBSŁUGI I KONSERWACJI

LIVRET DE UTILIZARE SI ÎNTRETINERE

Electrical plug with three connectors and a prohibition symbol (no text or labels)

Simple line drawing of a distressed face next to a smiling air conditioner (no text or symbols)

Fig. 4Fig

Fig. 6Fig

Fig. 8Fig

Fig. 10F

Simple line drawing of a smiling face on a flat surface with a black exclamation mark in the corner (no text or symbols)

Fig. 12F

Simple line drawing of a stylized tablet or tablet device with no text or symbols

Fig. 14F

Fig. 16F

Fig. 18F

BG
ИНСТРУКЦИЯ ЗА ОБСЛУЖВАНЕ

▶▶ 1. POKYNY PŘED UŽITÍM

▶▶ 6. DIAGNOSTICAR LOS PROBLE-MAS

EL APARATO NO FUNCIONA

▶ Análisis

▶ please do not cut off the power by pulling the
wire
▶ please do not plug or unplug to startup or shut off the unit
▶ please be careful when moving the unit, do not mangle the wire
▶ please do not put fingers or sticks into the grid
▶ please prohibit child to climb, stand or sit on the unit
▶ please unplug the unit before cleaning or maintenance

NOTICE: WE SUGGEST THAT ANY RE- PAIRS SHOULD BE EXECUTED BY PRO- FESSIONAL SERVICEMEN

▶ please make sure the unit is grounded
▶ please do not use unit in airproof conditions
▶ please follow the instructions thoroughly

PRODUCT INTRODUCTION

Dehumidifiers can reduce air humidity in room and thus make people live comfortably and goods stored properly. Due to their neat appearance, compact configuration, high quality and easy operation, our dehumidifiers are widely used in research institutions, industry, transportation, medical centers, measuring institutions, stores, underground constructions, computer rooms, archives, warehouses, bathrooms, etc. Keeping apparatus, meters, computers, communication equipments, drugs and files away from moisture, eroding, and mildew.

▶▶ 2. CONSTRUCTION

▶ Dehumidifier FIG. 1

1. Handle
2. Control panel

3. Wheel

4. Water tank

5. Water tank panel
6. Filter grill

▶ Control panel FIG. 2

1. humidity display
2. operate indicator
3. defrost indicator
4. memory indicator
5. tank full indicator
6. memory
7. humidity up
8. humidity down
9. on/off button

▶▶ 3. OPERATION INSTRUCTION OF KEYS:

▶ ON/OFF: Press ON/OFF, the unit runs in a circulation "ON-OFF-ON".

▶ Humidity up and down: Press “humidity up and down” for once, the set humidity will increase or decrease by 1%. Press the key for 1.5 seconds and the set value will increase or decrease by 1%. Press continuously with the speed 5 points per second.
▶ Memory Key: Press the memory key and the memory indicator will light on to start the function of memory when the power cuts off. Press the memory key again; the memory indicator dies to shut off the function of memory when the power is cut off.

START ON:

▶ Plug on the unit gives off "di".
▶ Press “ON/OFF”, the running indicator lights on, and the humidity display window lights on to display the previously set humidity. The initial humidity setting is 60% and 3 seconds later the humidity display window lights on to display current humidity.

▶ Press humidity up or down key to adjust the humidity needed. If the set humidity is 3% less than current humidity, the unit runs; if the set humidity is 3% more than current humidity, the unit stops running.

- When set humidity is less than 30%, the unit dehumidifies continuously, and the humidity display window reads “CO”.

SHUT OFF:

▶ Press "ON/OFF" when the unit is running, the unit stops running and all indicators die.

NOTICES:

▶ When the set humidity is higher than current humidity, the unit will not run.
▶ When the tank is full, the tank full indicator lights on, meanwhile, the compressor and the fan motor shut off automatically, and the buzzer gives off "DD" sound. Unless the tank is emptied, the buzzer gives the "DD" sound every 5 minutes. Only after emptying the tank the unit will start running again.
▶ When dehumidifying, the fan motor and compressor must be running at least for 3 minutes, once the compressor starts on. It is strongly forbidden to restart the compressor again within 3 minutes after the shut off.
▶ When operating in low temperature, the unit judges the system temperature automatically to defrost. When defrosting, the defrosting indicator lights on, the fan motor runs but compressor shuts off automatically.
▶ When you press the memory key, the controller will record current humidity even if the power is off. The unit will run under previous mode after power supplied again.
▶ The humidity display window shows humidity from 30% to 90%.
▶ Keep the unit unplugged if not used for a long time.

CONTINUOUS DRAINAGE:

▶ Take out the tank, open drainage gate at the bottom of tank, connect pipeline, fix the tank back, and pull the pipeline out from the bottom of the machine.

▶▶ 4. MAINTENANCE AND SAFETY

▶ FIG. 3

Do not use any relay, prolonged wire or adaptor.

Otherwise, it might result in fire, radiation, or an electric shock.

▶ FIG. 4

Do not put the unit nearby stove or heater. Otherwise parts of unit might melt down or even catch fire.

▶ FIG. 5

Do not use the unit in the direct sunshine, wind or rain. (only for indoor usage)

▶ FIG. 6

In case of any other problems (for example smell of scorch), please shut off the unit and unplug it. Otherwise, it might result in fire, electric shock or other malfunctions.

▶ FIG. 7

Do not use the unit in places easily affected by chemicals. Strong chemicals might damage the unit and cause the leakage.

▶ FIG. 8

Please unplug the unit when not used for a long time.

▶ FIG. 9

When cleaning, shut off and unplug the unit. Otherwise, it might result in an electric shock.

▶ FIG. 10

When draining continuously, put the drainer for smooth drainage. If the ambient temperature is as low as freezing, do not drain continuously.

▶ FIG. 11

Do not repair or disconnect the unit yourself. Otherwise it might result in fire or an electric shock.

▶ FIG. 12

Put the unit stably. If the unit turns over, the water will flow out from the tank and damage the objects nearby. Moreover, because of the damage, it might result in fire or an electric shock

▶ FIG. 13

Make the filter more endurable. When off for a long time, seal the filter in a plastic bag.

▶ FIG. 14

Do not use the unit near water. The unit might be damaged when soaked in water, so as to result in fire or electric shock.

▶ FIG. 15

Use the standard electric source of 220-240V/\~50Hz. Otherwise it might result in fire or electric shock.

▶ FIG. 16

Do not damage the wire. Do not put anything heavy on the wire or heat or pull the wire. Otherwise it might result in fire of an electric shock.

▶ FIG. 17

GB

Clean the dirt on the plug and fix it tightly. If the plug is not fixed tightly, it might cause an electric shock.

▶ FIG. 18

Do not regard the plug as a switch. Otherwise it might result in fire or an electric shock.

▶▶

5. NOTICES ABOUT UNIT OPERA-

▶ When moving the unit, do not tilt over 45^ to avoid any damaging of the compressor.

▶ The unit should be operated between 5^ 32^ .

▶ When dehumidifying, because of the heat resulted from the running compressor, the indoor temperature will rise by 1^ 3^ . Such a reaction should be considered as normal.

▶ When indoor temperature is below 10^ , and the ambient absolute humidity is quite low, it is unnecessary to use the machine.

▶ Air inlet and air outlet should be at least 10cm away from the wall.

▶ Try to keep the room closed to enhance the dehumidification effect.

▶ Too much dirt on the filter affects dehumidification, may even result in malfunctioning of it, thus it should be cleaned at least once a month. If there is a great amount of powder in the air, the filter must be cleaned once a week, or even every day. Pull the front panel out and clean the filter. If necessary, you may slightly knock all over the filter, use a vacuum cleaner to remove bigger pieces of dirt or even wash the filter in warm clean water ( ≤40% with some neutral detergents) and then dry it.

6. TROUBLE-SHOOTING

UNIT DOES NOT WORK

▶ Analysis

1. Power cut

2.Switch off

1. Unplugged

4.Fuse melted

1. Tank full

▶ Solution

1. Power on

2.Switch on

3.Plug on

1. Exchange fuse

2. Empty the tank and replace it

DEHUMIDIFIES IN INADEQUATELY

▶ Analysis

1.Filter choked by dirt

1. Some barrier

in air inlet or outlet

1. Door or windows open

2. Refrigerant leakage

▶ Solution

1. Clean the filter

2. Remove the barrier

3. Close the door and windows and seclude from the sunshine

4. Contact the manufacturer or seller

WATER LEAKAGE

▶ Analysis

1. The unit is inclined

2. Drainer choked

▶ Solution

1. Adjust the unit to be stable

2. Pull out the panel and remove the barrier

STRANGE NOISE

▶ Analysis

1. Until instable

2. Filter choked

▶ Solution

1. Place the unit stably

2. Clean the filter

▶ When above malfunctions occur and they could not be removed, please contact the supplier or seller, do not disassemble the machine yourself.

▶ When the unit starts or stops running, it ma-

kes certain noises of refrigerating circulation, which should not be considered as a malfunction.

▶ Hot air coming from the air outlet is normal.

INSTRUCTION ON MALFUNCTION CODES:

The unit analyzes malfunction automatically and displays the code on the humidity window.

MALFUNCTION DISPLAY E1

▶ Sensor of humidity

MALFUNCTION DISPLAY E2

▶ Sensor of refrigeration pipeline

SADRŽAJ

1...UPUTE PRIJE POČETKA KORIŠTENJA

2...KONSTRUKCIJA

3...RUKOVANJE

4...ODRŽAVANJE I SIGURNOST

5...INFORMACIJE O RADU UREĐAJA

6...OTKLANJANJE KVAROVA

▶▶ 1. UPUTE PRIJE POČETKA KORIŠTENJA

▶▶ 6. KLÜMJU NOVĚRŠANA

IERİCE NEDARBOJAS

▶ Analize

OMSCHRIJVING VAN HET PRODUCT

ER LOOPT WATER UIT HET APPARAAT

▶▶ 4. VEDLIKEHOLD OG SIKKERHET

▶ FIG. 3

▶▶ 4. KONSERWACJA I BEZPIE-CZEŃSTWO

▶ FIG. 3

▶▶ 6. USUWANIE USTEREK

URZĄDZENIE NIE DZIAŁA

▶ Analiza

▶▶ 3. DRIFT BESKRIVNING AV KNAP-PAR:

▶▶ 5. INFORMATION OM AVFUKTA-ENS DRIFT

SE

FR DÉCLARATION CE DE CONFORMITÉ

GB EC DECLARATION OF CONFORMITY

MCS Central Europe Sp. z o.o.

m = 311

GB - Disposal of your old product

- You product is designed and manufactured with high quality materials and components, which can be recycled and reused.

ES

- 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.

FI

- Please inform yourself about the local separate collection system for electrical and electronic products.

FR

- Please act according to your local rules and do not dispose of your old product with your normal household waste. The correct disposal of your old product will help prevent potential negative consequences for the environment and human health.

GB

Pure electrical circuit lines without any symbols

NOTE: