Detailed Product Description

Refrigeration system is an integral part of, when the refrigerant gas flow through the compressor, the pressure increases, volume reduced.

 Compressor uses common sense

 1. Compressors in the system's role

 Inhalation of low returns from the evaporator refrigerant gas, compressed, forming a high-temperature high-pressure refrigerant vapor. For the compressor, the air-conditioner cooling or heating, the role and operation of the compressor is not much change in the state, but some operating conditions change, the system is running hot when the pressure is relatively high.

 2. The need to maintain the system back to the oil state

 Frozen inside the oil in the compressor lubrication, can effectively prevent the mechanical parts wear. The role and its seal to maintain high and low pressure differential pressure between. In addition, as the constant cycle of frozen oil, but also time taken away the heat generated between the friction surface.

 Refrigeration compressor oil as part of the refrigerant discharged into the system. The discharge of oil in the condenser was dissolved in the liquid refrigerant; into the evaporator, the refrigerant gradually with the separation, transfer to the wall, or a mist, and with the return of gas compressors. However, as refrigeration compressor oil discharge can not be successfully returned, it will result in poor lubrication and eventually wear excessive friction surface.

 Therefore, the installation and use of oil return system to be considered: The

  machine installation, to minimize the short-indoor and outdoor machines connecting pipe length and indoor and outdoor machine drop height, to explain to the user drop-off pipe too long or cause the system to return to the General Assembly, the state oil bad. Installation must be set back to the oil bend.

  After the compressor power, continuous operation at least 5 minutes.

 So, can guarantee the state the compressor oil return. If running time is too short, there will be more frozen oil deposition in the system and can not return to compressor. The long run, will lead to the internal compressor due to fuel shortage arising from wear and tear.

 In this connection, also need to explain to users.

 3. In any case, are not allowed direct access to the liquid refrigerant compressors

  refrigerant from the condenser back into the air-conditioner system. Otherwise, the liquid refrigerant directly into the compressor.

 As the liquid refrigerant and refrigerant oil intersolubility strong, will dilute the compressor mechanical parts between the original film, making poor lubrication caused by abnormal wear compressor.

 Of liquid refrigerant directly into the compressor, you may be on the adhesion of the terminals, causing an instant insulation, pressure bad.

  additional refrigerant when the air-conditioner system should pay attention to: prohibit the adding too much refrigerant or compressor would exceed the maximum allowable charging amount, which could lead to liquid refrigerant compressor is directly inhaled, due to the non-fluid compressibility, caused by damage to the compressor.

 4. Air-conditioner systems must strictly control the water content of

 Refrigerant in the presence of water hydrolysis occurs to produce acid. Increased acidic environment of copper in a mixture of refrigerant and lubricant dissolved (oxidation). Dissolved copper ions with the steel or cast iron compressor (pump) was to restore contact with precipitation and deposited on the steel parts (piston, vane, cylinder) surface, forming a layer of copper film, which is the so-called copper phenomenon.

 Copper will affect parts of the gap and sealed with the results; severe Copper phenomenon can lead directly to meet the parts of the blocking switch (sliding vane and vane slot, the piston and cylinder). Caused by acidic water will exacerbate environmental degradation and motor oil burning.

 Therefore, installation and maintenance of air-conditioners should pay attention to:

  installed split-type air conditioner and the cabinet when in need of shorting. Should pay attention to venting to be fully, to avoid any air (including water vapor) remain in the system.

  refrigerant in the water content are also standard.

 5. Must not be open compressor nozzle exposed to the air

 Long-term exposure to the air compressor will increase the possibility of dust into the compressor. In addition, as oil has a certain degree of water absorption refrigeration will be inhaled more water vapor.

 In addition, for judging the compressor had been damaged, it should be properly kept sealed with rubber plugs and other objects compressor nozzle to facilitate the return analysis.

 6. The system vacuum attention to matters relating to

 In a vacuum state, the compressor operation is prohibited or impose electrical pulses. Because in the near-vacuum state (eg, <10mmHg =, e easily be freed, which will lead to terminal or between terminals and the discharge created between the shell.

 Therefore, the compressor in the vacuum state is not testing insulation, pressure of. Moreover, the compressor itself is not available vacuum.

 7.R22 compressor discharge pressure specifications: 2.65Mpa the following

 To ensure that the exhaust pressure drops out of specification, in addition to the design of the reasons, need to ensure that outdoor ventilation, smooth, indoor and outdoor heat exchanger cleaning. Otherwise, not only affects the hot swap capability, reduce air-conditioner cooling effect, but will also affect the operation of refrigeration system, resulting in the rise in exhaust pressure, and even exceed the maximum allowed compressor pressure.

 If the exhaust pressure exceeds the limit, you may have the following negative:

 Load is too large - poor lubrication, moving parts wear, adhesion;

 Temperature rise, thermal - insulation materials degradation, oil deterioration, electrical burning, poor lubrication;

 Current is too large - motor burned;

 Thermal protector continuous movements;