Because of the central air conditioning in general size specifications are relatively large, so the later replacement operation will be more troublesome, if they have a failure problem, then not only need to remove all the accessories, but also the cost of time and labor costs in the middle of the incalculable loss, so I recommend that you can send professionals to carry out reasonable repair and maintenance on a regular basis through the central air conditioning inspection to eliminate unnecessary failures and to be able to take the corresponding treatment of response programs and measures. Central air conditioning testing to eliminate unnecessary failures, and can take the corresponding treatment response program and measures, then the next may wish to learn about the central air conditioning repair and maintenance of methods and skills board of the introduction of it.
A central air conditioning repair cases
1, the work of the machine automatically stop
Fault: According to the user to reflect the use of the central air conditioning in the process of frequent automatic shutdown phenomenon, but immediately boot can restart, the work of the refrigeration effect is good, the shutdown time is irregular, door-to-door inspection, using a multimeter measurement Supply voltage is normal, the work of the motherboard voltage measurement of all poles are very normal, replace the motherboard repeatedly test machine, occasionally the fault will occur, indicating that the original motherboard is normal, the voltmeter has been accessed to the inner terminal sub port repeatedly test machine, found that the air conditioning shutdown voltmeter readings suddenly reduced, immediately returned to normal, suspected that the power supply is also a poor contact place, with a hand on the plug to move a little bit, voltmeter readings are also swinging! Up, disassemble the power socket to find the fastening of the zero line end of the screws are not tightened, and there is a serious fire phenomenon, replace the new socket repeatedly after the test machine, the fault disappears.
Summary of maintenance: this fault from the surface looks more complex, but many times it is due to external causes, so we deal with the fault in the maintenance, we should use the basic maintenance approach.
2, the work of the machine automatically shut down
Fault: According to the user reflects the central air conditioning in the use of the phenomenon of automatic shutdown often occurs, but immediately boot and restart, work good refrigeration, downtime irregular, door-to-door inspection, using a multimeter to measure the power supply voltage is normal, work to measure the voltage of the motherboard poles are very normal, the replacement of the motherboard to repeat the test machine, occasionally will be The fault, that the original motherboard is normal, the voltmeter has been access to the inner machine terminal sub port repeatedly, found that the air conditioning downtime voltmeter readings suddenly decreased, immediately returned to normal, suspect that the power supply is also poor contact place, with a hand on the plug to move, voltmeter readings are also swinging up, dismantle the power socket found that the screws fastening the zero end of the screws are not tightened, and there is a serious phenomenon of fire, the replacement of the new socket, and then try to find a new one. Replacement of the new socket repeatedly after the trial, the fault disappeared.
Maintenance summary: this fault from the surface looks more complex, but many times it is due to external causes, so we deal with the fault in the maintenance, we should use the basic maintenance approach.
Two, central air conditioning maintenance methods
1, physical cleaning
Through physical or mechanical methods of circulating water system or its equipment to stop cleaning a class of cleaning methods. Commonly used physical cleaning methods have host through the gun, that is, through the tight air or artificial punch rod, rubber plugs, nylon brush or round steel and other tools through the heat exchanger tube, to remove the accumulation of tube or obstruction. Turn over the host end cover, one by one with the gun through the gun on the copper pipe one by one through the gun, cleaning the tube wall of biological slime and rust residue, through the end of the gun with high-pressure water rinse clean. Then the water chamber side, end cover wall all the rust, scale completely eradicated, and brush two times rust paint, play a rust, rust, scale, scale role.
2, chemical cleaning
After the role of chemical agents to make the cleaning equipment in the accumulation of dissolved, loose, zero or peel off a class of cleaning methods. Commonly used chemical cleaning methods are acid washing, alkali washing, complexing agent cleaning, sterilization cleaning. Chemical cleaning is commonly used to remove equipment, pipeline hard scale and bends, joints at the buildup. The use of professional single cycle cleaning methods, organic acids and complexing agents, with efficient corrosion inhibitors, the corrosion of the copper pipe than inorganic acid low dozen times in the effective maintenance of the equipment on the basis of rapid descaling, descaling and rusting. After cleaning the copper pipe to stop pre-film disposal, can greatly slow down the corrosion rate of the equipment.
Because the central air conditioning later replacement operation will cost a certain amount of cost and expense, can be said to be very uneconomical, so now the installation of the central air conditioning organizations will send professionals to carry out regular and reasonable repair and maintenance, the specific methods and techniques can be referred to the above introduction, which knows the timely detection of the central air conditioning, eliminating possible failures and to take the corresponding maintenance measures, can be extended to a certain extent. Can extend the service life of the central air conditioning to a certain extent, but also be able to prevent the problem before it occurs, harvest to a more satisfactory use of the effect, so the above is a very reference and reference to the significance of the content of the text.