First, maintenance before starting
Normally, the Mitsubishi central air conditioner will be shut down and shut down in September. It will be turned on from May to June of the following year and will be suspended for more than half a year. Therefore, before the air conditioner is turned on, you must do a comprehensive "diagnosis". Check whether the air conditioning equipment is "faulty". According to the results of the inventory, under the guidance of professional and technical personnel, do a good job of maintenance and cleaning. This maintenance and cleaning should be in place. The outer casing, the body, and the filter of the outdoor unit and the indoor unit are included, and then trial operation is started to observe the cooling speed and effect.
Second, maintenance during the boot process
After the Mitsubishi central air conditioner is turned on, depending on environmental conditions, climatic conditions, number of power-on hours, surrounding dust, cleanliness of the air, whether the room is clean, and other factors determine the number of maintenance during the air conditioner startup process. The environmental conditions are not good, the weather is hot, the air conditioner is old, the air conditioner is turned on for a long time, and the number of maintenance during the air conditioner startup is increased, usually one and a half months. If the environmental conditions are good, the air conditioner is relatively new, the air is less dusty, the air conditioner is turned on reasonably, and it is used alternately with the electric fan. The maintenance cycle can be extended appropriately, from the air conditioner to the air conditioner shutdown maintenance 1-2 times. Maintenance should be serious and careful, leaving no dead ends. Meet the standard, improve the cooling speed and cooling effect, and achieve energy saving, fresh and comfortable.
Third, maintenance after closing
The weather is getting warmer, the air conditioner is turned on, the weather is getting cold, and the air conditioner is turned off. This is a regular year. Note that the outdoor unit and the indoor unit should be thoroughly examined before the air conditioner is turned off. Maintenance, maintenance, cleaning must be a ring, can not be disconnected, easy to leak the link should be tightened, strict inspection, after completing the above steps, set the air conditioner hood to prevent dust pollution, prevent air conditioning drip and water, Keep clean and prepare for reuse in the coming year, so as to clean, save energy and extend the service life of air-conditioning equipment. For high-quality split machines of well-known brands, the cabinets should be protected and the energy-saving effect should be fully exerted.
Fourth, Mitsubishi central air conditioning cleaning should pay attention to
1. Disconnect the power supply and open the cover;
2. Remove the filter to expose the evaporator sheet;
3. Unplug the inner cover of the air conditioner cleaning agent;
4, shake up and down;
5. Spray the air conditioner cleaning agent evenly onto the evaporator, wait for 5 minutes, turn on the air conditioner for 5 minutes (cooling), and finish the cleaning work.
The Mitsubishi central air-conditioning new fan unit is generally operated under icy cold weather conditions. The long-time water supply pipeline construction is not flushed according to the construction regulations and is consciously used for the freezing crack of the heater. This will arouse the accident. When the new fan unit is delusional, an effective antifreeze central air conditioning automatic control interlock monitoring device must be set up. This causes the heater to freeze. At this time, the central air-conditioning self-control anti-freeze care device of the new fan unit works, reducing the maintenance workload after the heater is cracked. At the same time, the anti-freeze range should be extended to the whole new fan room. The dirt in the pipeline is continuously deposited in the heater of the new fan unit near the heat exchange station, which brings great difficulties to the timely creation of the freezing crack accident.
The central air-conditioning self-control anti-freeze care device of the new air blower unit is out of control. The new air blower group located in the dark room is used to create a cold-cold cracking accident in the new air blower group in the dark room. The valve position of the central air-conditioning self-control valve is wrong. Left a hidden danger. Establish and improve the operation planning system. The possibility of blocking is greater. After icing, the first time it was swelled, how can it be greatly repaired and repaired. The fresh air conditioning unit must enclose the extra-water flow during the winter operation. If there is no continuous dice tube and electric insulation damper between the new fan unit and the fresh air inlet window, the accident will be built in the winter air conditioning central air conditioning self-control system. Add electric heaters, duty fans and other equipment to prevent the new fan group heaters from freezing and cracking. The construction unit should be responsible for the antifreeze problem of the new wind turbines during the winter construction, and the new wind turbines will be extraordinary.
The lack of safety of the new wind turbine unit often causes the heat exchanger to freeze and crack, without any central air conditioning self-control equipment, it is probably to ensure the completeness of the water discharge; therefore, the water in the air cooler can not be completely emptied, the approximate cause As follows: When the surface cooler is drained, the running damper is not opened, and it is not desirable to "go on the job". The water supply and return pipeline fully adopts the coherent method of the subordinate branch pipe. From the construction to the commissioning to the investment operation, there are four new wind turbine group freezing crack accidents. The long-term pipeline is not flushed, so the new wind turbine unit water supply construction unit should be constructed in winter. The anti-freeze problem of the new wind turbine group is treated responsibly, and the freeze-fracture accident is mostly built in the middle of the night when the temperature is low. The mis-exercise of the water valve opening and closing command position of the new air-conditioner group and the computer-aided axe of the central air-conditioning control system are exactly the same.
Winter Mitsubishi central air conditioning http://self-control should pay attention to what problems?
With the new wind turbine group, the heating should also be checked and accepted according to the normal pace. It is recommended that the new air conditioning equipment is not required for long-term heating. The air conditioning load of the dark room is small. The new air blower unit is composed of a filter, a surface cooler, a heater, and a humidifier light blower. The new air blower group adopting the spray humidification method should try to vent the water in the drainage water seal after the fried fish. The water supply of the new air blower unit is actually the shape of the current cut-off of the central air-conditioning self-control system. However, due to the urgency of the entire heating system, the water is not officially flushed. The long-term pipeline is not flushed, so the water supply to the new wind turbine unit is not suitable for the air-conditioning and debugging. The air outlet parameters of the new wind turbine unit at the specification level of the building are enforced, and the bursting position after the pressure relief is no longer expanded. It is probably used when the fresh air unit is deflated and drained. It is important to protect all air conditioning equipment and pipelines from freezing.
In the Mitsubishi central air-conditioning automatic control system, the new wind turbines are activated or not, in order to catch up with the new wind turbines for the long-term heating. At the same time, the extraordinary strength of the new wind turbines, the heavy safety of the new wind turbines often causes the heat exchangers to freeze. Splitting, water-carrying central air-conditioning automatic control installation and commissioning should be arranged in other seasons, which not only brings the air conditioning system to its own economic dissipated, the heater water flow is too small will trigger the freezing crack accident. At this time, the central air-conditioning self-control anti-freeze care device of the new wind turbine group works, and the air outlet parameters of the new air blower group at the specification level of the building are executed. If the heater water flow is too small, the freezing cracking accident will be triggered.
The above points are the things that Shandong Dahe Air Conditioning Equipment Sales Co., Ltd. will solve for the central air conditioning in the summer before use. In addition, we must remind the users that the air conditioning industry has proven that the air conditioner cleans every year. The second best. Usually, the air conditioner is cleaned once before the air conditioner is turned on, and the air conditioner is cleaned once in the middle period, and the air conditioner is cleaned once when it is turned off.
Sometimes when the air conditioner is turned off, after a large cleaning of maintenance, maintenance, cleaning, etc., the air conditioner is covered with a hood. It will be cleaned in the coming year, and the filter net will be clean. At this time, the cleaning before the air conditioner is turned off is one year. Cleaning twice, the effect is very good, saving labor and cost, reducing operating costs, and not affecting the cooling effect.
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