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Survey at the place of re installation. The installation position of outdoor unit shall meet the following requirements
(1) The ground or wall should be able to bear the weight and self vibration of the body
(2) The installation position shall be convenient for operation, adjustment and maintenance
(3) Noise, cold (hot) wind and condensate during operation of external unit shall not affect others' work, study and life
(4) There should be no combustible gas leakage and explosives around the external machine
(5) As far as possible, the external machine should be installed in the back exposed place
The installation position of indoor unit shall meet the following requirements:
(1) Keep away from direct sunlight
(2) The air inlet and outlet of the internal unit shall not be obstructed.
Measure the distance between internal and external machines. The distance between the internal and external machines shall be less than 5 meters, and new connecting copper pipes shall be prepared when the distance is more than 5 meters.
The internal and external position difference was measured. The position difference between the internal and external units should be less than 3 meters, otherwise, the refrigeration capacity of the air conditioner will be reduced, the compressor load will be increased, and overload protection will be caused.
2 air conditioning installation steps
After determining the position of the internal and external units according to the above principles, install the inner hanging plate immediately. After the external unit and the inner machine hanging plate are firmly installed, straighten the connecting pipe to check whether the pipe is bent or shrunken; next, check whether there are cracks in the bell mouth at both ends. If there are cracks, expand the mouth again, otherwise fluorine leakage will occur. Finally, check the control line for short circuit and open circuit. After confirming that the pipeline, control line and outlet pipe are in good condition, bind them together and seal the connecting pipe orifice. When crossing the wall, two people should go out slowly inside and outside the wall to avoid pulling injury; connect the pipeline with the internal and external machines, and connect the control line.
Next, remove the air from the pipes and the inner machine. The method is like this;
(1) Tighten the connected external connector (fine), and loosen the valve stem of the stop valve for about 1 circle with a special wrench
(2) Hear the external machine connector (thick) squeak, about 30 seconds, tighten the (thick) joint with a plate hand
(3) Loosen the valve stem on the heavy pipe
(4) Completely loosen the stem of the stop valve on the (SLIM) pipe. This is the end of time and space.
Finally, use detergent to detect the leakage, carefully observe whether there is bubble coming out from each joint. After verifying that there is no leakage in the system, tighten the valve safety cap, and then start the machine for trial operation.
3. Operation and commissioning
After the air conditioner is installed, it is necessary to set up an independent power line for air conditioner. The power line of household split air conditioner generally has three strands of copper core wire (Φ 1.5-2 (mm)) 2. The socket is 220V, 15A.
Check the voltage before starting the remote control. After the outdoor unit works, check whether the running current is consistent with the label on the name plate. If the current is less than that indicated on the nameplate, it can be regarded as a small amount of freon, and it is not urgent to add fluorine. The condensation or frosting at the pipe joint can be continued to be observed.
The normal operation of any split air conditioner shall meet the following conditions:
(l) 4 kg / cm2
(2) The connecting pipe can only be dewed, not frosted
(3) Whether the running current is consistent with that indicated on the nameplate
(4) The air outlet temperature of internal unit meets the requirements
It is (12-16) ℃ in summer and (35-40) ℃ in winter. In winter, the indoor temperature is 23-18 ℃.
4. Supplement refrigerant
In the process of air conditioner moving, as long as it is required to control the operation specification, the refrigeration is good after starting and running, and there is no need to add refrigerant. However, for the micro leakage in use or the slow action of evacuation during the transfer, the refrigerant will be slightly reduced, or due to the factors such as the pipeline lengthening during the relocation, the air conditioner can not meet the four conditions of normal operation in a period of time, that is, the pressure is lower than 4.9kg / (mm) 2; the pipeline is frosted; the current is reduced; and the outlet temperature of the internal unit does not meet the requirements, so the refrigerant must be supplemented.
During operation, fluorine must be added from the low pressure side. Before adding fluorine, screw off the process cap on the maintenance port of the low-pressure gas stop valve of the outdoor unit, and select the filling pipe according to the requirements of the public and British systems; use the gas feeding pipe with a thimble end to push the thimble on the gas filling valve to connect with the refrigeration system, and connect the other end with a tee meter. Connect the other end of R22 to the air cylinder, and connect the other end of R22 to the air tube. When the pipe mouth squeaks for 1-2 seconds, it indicates that the air is exhausted. Tighten the nut of the filling pipe and open the valve of the refrigerant bottle. Put the cylinder upside down and add fluorine slowly. When the gauge pressure reaches (4.9-5.4) kg / (CM) 2, the refrigerant is sufficient. When the water pipe and water pipe of the air conditioner are closed, the pipe will be closed
The dew flows out, and the low-pressure gas pipe (coarse) stop valve is dewed. After confirmation, it is in good condition. Remove the low-pressure gas maintenance process port and add the gas pipe, tighten the outer safety cap, and fill the refrigerant. So far, the relocation work is all over.