Automatic Portable Dehumidifier

AUTOMATIC PORTABLE DEHUMIDIFIER

GENERAL TROUBLESHOOTING

First, the maintenance sequence of the dehumidifier without dehumidification failure:

1. Ventilation system failure:

1) inlet grille and outlet grille: A. Man-made damage or aging cracks; B. Ingress or out of the wind is severely blocked;

2) air filter: blocked or damaged by dust;

3) evaporator: A. Evaporator condenser fins dust; B. The surface of the evaporator freezes;

4) fan motor: A. Capacitor damage; B. Fan motor holding shaft; C. Rotor and shaft loose; D. Axis bending deformation; E. Bearing damage; F. Winding burned;

5) wind blade: A. Loose screws; B. The fan blade is deformed or damaged; C. The dust of the wind blade is serious, which seriously affects the air volume; D. The small dehumidifier blades also have a phenomenon of seizing the blades due to serious dust accumulation.

2. Electrical system failure:

1) compressor and fan are not turned: A. The power is cut off; B. The switch is not closed; C. Socket disconnection; D. The voltage is too low; E. The circuit breaker is disconnected; F. The fuse is blown.

2)The compressor does not turn, the fan turns: A. Starter failure; B. Capacitor failure; C. Overload protection.

3) compressor and fan are running: the refrigeration system is faulty.

3. Refrigeration system failure:

1) refrigerant leakage;

2) refrigeration system blockage: A. Dirty blockage; B. Oil plug; C. Welding plug

3) excess refrigerant;

4) The compressor has no displacement (fault).

4. Compressor failure:

1) poor compression, high and low pressure chamber helium;

2) The running parts are damaged and the compressor holds the shaft.

Second, the maintenance sequence of the dehumidifier noise increase fault:

1. The ground is not flat and the dehumidifier is not placed smoothly;

2. Loose parts on the dehumidifier;

3. There is a foreign object in the dehumidifier;

4. Damage or deformation of the fan blade causes the dynamic balance to be destroyed;

5. Starter failure;

6. There is a collision between the pipes;

7. The fan is short of oil;

8. Fan bearing failure;

9. The compressor is too noisy;

10. Filling with too much refrigerant or lubricating oil can cause liquid shock.

Third, the maintenance sequence of the dehumidifier running water to the ground:

1. The dehumidifier is placed unbalanced, and the water tank is excessively tilted, causing water to overflow;

2. The drain hole or drain pipe of the sink is blocked;

3. The water tank is damaged and leaks;

4. Leakage at the outlet of the outlet pipe or aging of the outlet pipe.

Fourth, the troubleshooting sequence of dehumidification effect is worse:

1. The air filter has serious dust accumulation and the airflow is blocked;

2. The air outlet attracts obstacles and the airflow is blocked;

3. The fan speed is slower;

4. The room is poorly sealed, and a large amount of outdoor humid air infiltrates;

5. The room size is too large;

6. Excessive moisture in the room;

7. More dust accumulates on the fins of the evaporator, which reduces the effect of freezing and dehumidifying;

8. Frost on the surface of the evaporator;

9. There is more oil in the evaporator, and the cooling and dehumidification effect is reduced;

10. Insufficient refrigerant charge;

11. Refrigerant leakage;

12. Capillary specifications are incorrect, the diameter of the tube is large, and the throttling and depressurization are insufficient;

13. Ice blockage occurs in the refrigeration system;

14. The refrigeration system is partially blocked;

15. There is air in the refrigeration system;

16. The compressor is poorly compressed and the displacement is reduced.

Fifth, the troubleshooting sequence of the compressor can not be started:

1. Power failure, voltage is too low;

2. The circuit fuse is blown or the switch is damaged;

3. The startup capacitor is damaged;

4. Overheat protection is not reset or faulty;

5. Various relays have not been reset or malfunctioned;

6. The motor winding is broken or burned.

6. The heat exchanger is a key component of the dehumidifier.

The single-row heat exchanger dehumidifier is made of aluminum tube, the aluminum tube is exposed, the water droplet can not stay on the aluminum tube, and it is dripped into the water tank very quickly. Therefore, when the dehumidifier is just turned on, it is easy to cause the illusion that “the water is fast and the dehumidification is good”. But as soon as the machine stopped running, the dripping quickly stopped.

The finned heat exchanger dehumidifier is arranged in aluminum sheets and connected by copper tubes. The contact surface of the aluminum sheets is large, and the water droplets will start to drip when they are covered with aluminum sheets. Therefore, it is easy to cause “slow water output. The illusion, but after the shutdown, the drip will continue for a while.

USE COMMON SENSE

A The humidity and temperature in the air are as ubiquitous as everywhere. The temperature of the yellow plum in the south is not high, and the humidity is very high. People feel sultry and uncomfortable. At the same time, damage caused by moisture and mold to metal oxidation occurs at any time unconsciously. The relative humidity of the environment is greater than 60%. The mold can grow, and the humidity is more than 85%. It is a high-incidence environment for mold.

B Industrial optical lenses, magnetic recording materials (including optical discs), video film, electronic information media, electronic components, instruments, meters, powder materials, paper, wood, silk, leather tobacco, food, tea, food, etc. Items that need to control humidity.

C Dehumidifier is divided into chemical dehumidification and freezing dehumidification. This article refers to freezing and dehumidification. The refrigerating dehumidifier uses the principle of compressor refrigeration to dehumidify. The moisture in the air enters the evaporator and condenses and condenses, then accumulates and drops out and drains into the drain. Dehumidifiers are different from air conditioners in dehumidification. Dehumidification of the air conditioner is to dehumidify the entire space temperature, and is suitable in summer and hot weather conditions. Dehumidifier dehumidification is the internal cooling of the machine, the water in the air is discharged, but the temperature of the space is slightly increased, but the temperature difference is not obvious, it is more suitable for the four seasons, and the electricity consumption is also saved.

D Dehumidifier should be avoided to be placed next to the heat source. To keep the air inlet and outlet open, under normal circumstances, the dehumidifier should be placed in the middle of the space. There should be enough space around, and do not stack the items. Keep the air flowing smoothly and achieve a uniform dehumidification effect.

E The dehumidifier is used in low temperature (below 18 °C) environment, it will be frosted or frozen, dehumidifier automatic cream with defrost function, but dehumidifier without defrost function, artificial defrost can be used (power off the way). Under normal circumstances, the temperature is low, the humidity is low, the humidity is below 40%, the dehumidification effect may not be obvious, and the speed is slow, which is a normal phenomenon.

F Nominal dehumidification is measured under standard environmental conditions. If the dehumidification amount is 50 liters/day, it means the volume of water measured at 24 °C/RH80% for 24 hours.

G During the operation of the dehumidifier, the hot air discharged from the air outlet is a normal operation of the machine. The humidity in winter is low and the temperature of the air outlet is also significantly reduced, which is a normal phenomenon.

H When consumers purchase dehumidifiers, the calculation of dehumidification should be based on noise and other indicators. Generally, dehumidifiers with large dehumidification capacity have high noise and are of industrial equipment type. If noise is required and dehumidification is required, it is recommended. Buy a few smaller dehumidifiers.

ENERGY SAVING TIPS

Place the appliance in a ventilated position as much as possible. If there is a standby appliance such as a color TV, try to make it energized in standby mode. The internal parts will dissipate heat, disperse the moisture inside the machine, and protect the internal components from explosion-proof dehumidifiers. damage. In addition, the room is located in the lower level, the residents with relatively large moisture, it is best to consider purchasing a dehumidifier to improve the air humidity. If you find that the appliance is abnormal, you should turn off the power immediately and ask the professional to repair it. In such a weather, the public can properly put some hygroscopic substances in the room, or use a dehumidifier or turn on the air conditioner. Once there is good weather, be sure to pay attention to the drying of the clothes and pillows at home. According to the living conditions and the dehumidification capacity of the dehumidifier, it is based on the area, height, humidity, and air circulation level of the dehumidification required by us. The living room, bedroom, and study room should be selected for the wet machine. The applicable area and dehumidification amount are used to determine the dehumidifier. Choose according to the practical applicability of the space. Whether the dehumidifier is fixed or easy to move. This is chosen in consideration of the different requirements for air humidity in different areas. Some humid places can be installed with a fixed dehumidifier, which saves space. The dehumidifier is combined with freezing for dehumidification. If the two are compared, the latter can save 20-30% of the total power consumption. If the user has the conditions to supply steam, the energy saving effect of this method will be more significant.

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