In addition to the hidden projects, in addition to hydropower, there are central air -conditioning, and the central air -conditioning three -point quality and seven -point installation; there are many kinds of materials and process techniques installed. It can be said that each master has each master’s method. From the beginning The central air -conditioning design, plan configuration, communicate with the designer/owner to determine the positioning drawings, and then start installation at the entrance.
The installation step of the central air conditioner is as follows:
1. Internal installation: The first step of the construction team is to hang the inner machine. Here you need to pay attention to 2 points to avoid follow -up problems.
① The inner machine is not less than 1 cm from the roof, avoiding resonance with the top of the wall when the machine is running.
② The inner machine should consider one percent of the slope, and the side of the condensed water should be slightly lower to avoid unavailable condensation water.
Standard process: The installation master enters the field and checks the drainage position on the spot (model, positioning drawings) at the scene. Code positioning: require two codes between 90-100cm to ensure the horizontal vertical and vertical of the condensed pipeline. Thick stainless steel codes must be used: 90-100cm must be fixed between two codes: color tube card color distinction: trachea, liquid pipe, condensed water pipe: paste the warning tag, and better construction for the construction staff of the later types.
2. Installation of the refrigerant copper pipe: After installing the inner machine, you can install the refrigerant copper pipe. This is the most important link in the installation process of the central air conditioner.
① All welding points should be welded at the connection between the copper tube and the dilute pipe, and the copper tube and the copper tube welding head should be as small as possible. Essence
② During the welding process, the nitrogen (nitrogen -filled welding process) must be washed in the copper pipe, which caused no air inside the copper pipe to avoid welding and the inner wall charcoal and the compressor in the formal operation.
③ After the welding is completed, it should be used in the tube to blow ash with high pressure nitrogen to keep the copper tube clean.
3. Nitrogen filling pressure: This is the pressure test that must be performed after the welding is completed. The nitrogen that is filled with a certain pressure in the copper pipe to keep the pressure. The general pressure test time is 24 hours. 48 hours, usually a week; ensure that the copper tube is not leaked at all.
It is necessary to specifically explain: using R410 refrigerant, the internal pressure of 40 kg needs to be kept.
Nitrogen is an inert gas, with small expansion coefficients, and almost no pressure changes caused by thermal expansion and contraction. If the pressure gauge is reduced during the test, you should check whether there is a problem with the refrigerant welding.
Air -conditioned copper pipes are the medium of air -conditioning air -conditioning and heating, which is equivalent to human blood connection. Fluorine system home central air -conditioning copper pipes are divided into ordinary copper pipes and R410A copper pipes. The copper tube used on the traditional R22 refrigerant air conditioner is an ordinary copper pipe, and the copper pipe used by the R410A refrigerant air conditioner is R410A copper pipe. At present, the multi -connected home central air -conditioning host of the fluorine system is mostly R410A refrigerant. Therefore, the R410A copper pipe is the most in the fluorine system multi -connected application.
Because the pressure generated by the R410A refrigerant is 1.6 times that of the R22 refrigerant, this requires its large copper tube density, strong pressure resistance, high copper tube cleanliness, and uniform wall thickness of the copper tube. Use a special R410A copper tube.
In the system installation, the R410A copper tube can be used instead of ordinary R22 copper pipes, but it must not be used to replace the R410A copper tube with ordinary R22 copper tube. Many consumers value the overall project price, the lower the better, the importance of installation materials and installation processes, which often leads to some engineering companies in order to eager to get the bills, regardless of the quality of customers in the later period. Replacement to save costs and meet customer price requirements, so the ultimate victim is still consumers themselves.
4. Installation of condensation water pipe: The condensate pipe is connected from the inner machine to outdoor or floor drain, at least the slope of the> 1%slope. The high -quality installation is to land near the indoor machine, and finally take out the outdoor or floor drain with other condensate pipes. Strict requirements must be installed on the standard position on each set of condensate water pipes to avoid air pressure from drainage pipes to ensure smooth drainage.
5. Installing outdoor unit: To achieve the air outlet of the external fan, there must be no blocking objects within 50 cm. All landing foot must be installed with a shock -reducing pad to ensure that the machine is operating normally.
6. Pumping vacuum: After filling the refrigerant after filling the refrigerant, the refrigerant tube needs to be used to be vacuum, and the air in the tube is pulled out to keep the tube dry and waterless. Otherwise Equipment damage.
7. Charging Refrigeration: After designated the dedicated refrigerant, after the above work is completed, you can turn on the refrigerant valve, release the refrigerant that comes with it in the aircraft, test and detect the pressure, and add it appropriately until the debugging is completed. Essence
8. Wheel measurement installation: It is recommended to use ABS material as a airport to reduce condensate water exposure
Returning air outlet: The central air conditioner of the family usually installs the return air outlet and the maintenance port. The size of the air inlet must be consistent with the inner machine return air outlet, so that there must be no misalignment, so as to achieve the best return air volume; and ensure that there is sufficient maintenance space.
Exit outlet: The air outlet must not be installed near the lamp zone (reason: if there is a lamp zone in front of the air outlet, it will cause the air conditioner to block the wind during heating, and the hot air will rise up, making the hot air stay up the upper part of the room, the hot air stays in the upper part of the room, the hot air, so that the hot air stays in the upper part of the room, the hot air, the upper part of the hot air stays in the room, the upper part of the room is stranded in the room. Therefore, the entire activity space feels insufficient calories, and it takes a long time to feel the heat.
Only the central air conditioner installed by the construction process with strict installation standards can maximize the effect of the central air conditioner and reduce the trouble of use.
CF1900-Cross-Fluted Film Fill
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