In the use of industrial dehumidifier, we often encounter a write problem (Emerson), such as not dehumidification, noise suddenly increased and other faults, then how do we overhaul it?
First, the dehumidifier does not dehumidify the fault of the overhaul sequence:
1. Ventilation system (system) failure:
① air inlet grille and air grille: A. man-made damage or aging cracked (jūnlìe); B. into the wind or out of the wind is seriously blocked;
② air filter (Filter mesh): blocked or damaged by dust;
③ Evaporator: A. Evaporator condenser fins accumulate dust; B. Evaporator surface icing;
④ fan motor: A. capacitor damage; B. fan motor holding shaft; C. rotor and shaft loose; D. shaft bending deformation; E. bearing damage; F. winding burned;
⑤ wind blade: A. fixed (fixed) screws loose; B. fan blade deformation or damage; C. wind blade accumulation of dust is serious, seriously affecting (influence) the air volume (definition: the amount of air circulation per unit of time); D. small dehumidifier blade also exists due to the accumulation of dust is serious and jamming the phenomenon of the wind blade.
2. Electrical system (system) failure (fault):
① compressor, fan do not turn: A. power is cut off; B. switch is not closed; C. socket disconnected; D. voltage is too low; E. circuit breaker disconnected; F. fuse burned out.
② compressor does not turn, fan turn: A. starter failure (fault); B. capacitor failure; C. overload protection. Dehumidifier belongs to the refrigeration and air conditioning family in a small member. At present, the world's main production of dehumidifiers are concentrated in Italy, Japan and China Taiwan and other places, China's position in the global dehumidifier market is not significant. In particular, household dehumidifiers, which have been mainly exported, have only just been recognized by Chinese consumers. Dehumidifiers can be divided into two categories: household dehumidifiers and industrial dehumidifiers, and the industry has subdivided industrial dehumidifiers into two categories: residential and industrial. This article will make a shallow analysis of this industry from a variety of perspectives.
③ compressor, fan are running: refrigeration system failure.
3. Refrigeration system failure (fault):
① Refrigerant leakage;
② refrigeration system (system) blocking: A. dirty plug; B. oil plug; C. welding plug;
③ Refrigerant excess;
④ compressor discharge (fault (fault)).
4. Compressor failure (fault):
(1) poor compression, high and low pressure chamber gas;
② running parts damage, compressor shaft.
Second, the dehumidifier noise increases the failure of the overhaul sequence:
1. The ground is not flat, dehumidifier is not placed smoothly;
2. Dehumidifier parts loose;
3. Dehumidifier inside a foreign body;
4. Fan blade damage or deformation caused by dynamic balance is destroyed (vandalism);
5. Starter failure (fault);
6. Collision between the pipelines;
7. Lack of oil in the fan (Draught Fan);
8. Fan bearing (bearing) failure (fault);
9. Compressor noise is too large;
10. Charge refrigerant or lubricating oil (Lubricating oil) too much, resulting in liquid shock.
Third, dehumidifier to the ground water fault repair order:
1. Dehumidifier placed unbalanced, excessive tilt of the water tank, resulting in water overflow;
2. Drainage holes in the sink or drainpipe blockage;
3. Sink damage leakage;
4. Leakage at the connection of the outlet pipe or rupture of the outlet pipe due to aging.
Fourth, the dehumidification effect deterioration of the fault repair sequence:
1. Air filter dust accumulation is serious, the airflow is blocked;
2. Outlet suck obstacles, airflow is blocked;
3. The speed of the fan (Draught Fan) slows down;
4. Poor sealing of the room, a large number of outdoor wet air infiltration;
5. The room is too large;
6. Too much indoor moisture dispersal;
7. Evaporator fins on the accumulation of dust, so that the effect of refrigeration and dehumidification is reduced;
8. Frost on the surface of the evaporator;
9. Evaporator oil accumulation is more, refrigeration and dehumidification effect is reduced (reduce);
10. Insufficient refrigerant charge;
11. Refrigerant leakage;
12. Capillary tube specification is not correct, the pipe diameter is large, throttle pressure reduction is not enough;
13. Refrigeration system ice blockage;
14. Refrigeration system part of the plug;
15. Air in the refrigeration system;
16. Compressor compression is poor, the displacement of the maximum reduction.
Fifth, the compressor can not start the troubleshooting sequence:
1. Power supply failure, low voltage;
2. Circuit fuse burned out or switch damage;
3. Damage to the starting capacitor;
4. Thermal protection not reset or malfunction;
5. Various relays are not reset or are faulty (fault);
6. The motor winding is disconnected or burnt.
Sixth, the heat exchanger is the key dehumidifier (interpretation: an important part of the metaphorical things) components
Single-row heat exchanger dehumidifier made of aluminum tubes, aluminum tubes exposed, water droplets in the aluminum tubes can not stay, and soon dripping into the water tank, so dehumidifier just started easy to cause "fast water, dehumidification good" illusion, but the machine stopped running, dripping soon stopped.
Finned heat exchanger dehumidifier using aluminum (Al) sheet arrangement, copper tube connection production, aluminum contact surface is large, the water droplets to be full of aluminum sheet will start dripping, so it is easy to cause "slow water. Dehumidification poor" illusion, but after the shutdown, dripping will continue for a period of time. Dehumidification device by a dehumidification egg and bearing the seat of the dehumidification device, in which the dehumidification egg is permeable porous ceramic shell for the body, the interior of a room, room filled with moisture-absorbing materials, the bottom surface of the body is set up with a perforation, with a plug set of closure, the outside of the shell has to be coated with local humidity sensing material to show the dehumidification egg moisture absorption.
The above are some common industrial dehumidifier failure (fault) overhaul steps, if you have other questions, you are welcome to call and write to consult!
