Whether the air conditioning lack of freon in simple way

a, judging from the performance of the outdoor

1, judging from blowing out hot air strength

2, air conditioning, the frequent start-stop outdoor, indoor temperature obviously did not reach the set temperature, the machine will stop, it may be due to a lack of fluorine of compressors overheating protection.

3, outdoor noise, the noise is big, it is possible that installation problem, the inside of the outdoor pipe sound caused by contact with the casing.

4, outside air conditioning machine fine copper tube cooler, thick copper tube at room temperature, indoor air is not cold.

reason is that the refrigeration effect, tubule than thick tube cooler.

this is caused by the lack of refrigerant, thin tube cold compressor at work. The thick tube at room temperature, it is not enough refrigerant.

5, outdoor connecting line there is a clear oily be soiled, freon there are oil leakage. Emergency way to try to find two wrench and tighten the oil spill to see.

oil means refrigerant leakage, leakage or bell mouth. Can use detergent to get some foam coating where the oil spill, if see bubble blowing up, that is for sure in the refrigerant leakage, if there are no bubbles, estimate cold media also leak out.

2) , cooling effect. It can take sports surface friction heat in time, prevent the compressor temperature is too high or compressor is burn out.

3) , sealing effect. Lubricating oil into the friction piece of sealing surface and form oil seal, prevent leakage of refrigerant.

4) , to reduce the compressor noise.

5) , frozen oil dissolved in the freon in air conditioning refrigeration system, and with freon refrigerant in the refrigeration cycle in the system.

6 thin tube, outside the machine is high pressure pipe, internal flow is refrigerant liquid, so small volume. Tubes is low pressure pipe, internal flow is refrigerant gas, so the volume is big. Thin tube is high pressure tube, namely the compressor of the trachea. Tubes is low pressure pipe, i. e. , compressor muffler.

if the joint fluid pipe valve (outdoor A tube valves) Frost, explain the lack of fluorine. Tracheal valve ( Thick tube valves) Frost, indicating a slight lack of fluorine or ambient temperature is too low. Two valves are frost, the system has a secondary throttling phenomena.

secondary throttle for air conditioning system can lead to a smaller compressor power output, in the evaporator liquid quantity is small, abnormal operation of the refrigeration system.

with the type and thickness of pipe and arrangement are different, but the principle is the same.

see if machine is high, the low pressure pipe outside the frosting. Can look at the link the two outdoor with copper pipe, if the lack of serious refrigerants, tubule will frost, fluorine tubes leakage will flow out of yellow oily be soiled, frost.

tubes frost: refrigerant leakage, refrigerant too little, resulting in the trachea too cold, will cause the tubes frost. Indoor machine filter clogging or indoor heat exchanger stain is too much, lead to ventilation and heat exchange. Micro systems, tubes caused by frost.

tubule frost: lack of freon, thin tube will be frosted.

is the machine capillary congestion caused by the fault of air conditioning high pressure pipe frost, also appear in capillary frost, current rise all the way from boot start, until the compressor overheating protection down, put out after the refrigerant replacement of capillary can solve.

7, when the compressor work, heard a hiss shows lack of freon outside the machine, the hiss is leaking fluorine voice.

8, large area severe icing outside the machine.

the icy outdoor reason: because of the low temperature air conditioning in the heating mode, the wings will outdoor frost, when the defrosting time is not enough or don't feel sensitive probe, will cause the machine don't defrost, frost will slowly accumulation, frozen state.

the solution: boot first refrigeration, spewing outdoor is hot at this moment, wait for after the ice melted, then open the heating function.

so, this kind of large area of ice,, it is not lack of freon.

9, air conditioning heating conditions outside the ice machine

condenser fan speed too slow, too dirty or outside the machine outdoor temperature is too low to frost, fluorine leakage, etc.

2, indoor judgment

1, the effect of air conditioning, the indoor temperature is slow, set the temperature is very low, but do not feel cold, it is possible that the lack of fluorine.

in the air conditioning work half an hour measure, measure indoor machine outlet and tuyere ( To filter the measurement) The difference in temperature. Measuring difference in temperature measurement of the temperature difference between the indoor machine in and out of FengKouChu if is at eight 12 degrees should belong to normal, when the heating temperature should be greater than 16 degrees. If the temperature difference is less than 8 ℃, shows that the freon is not enough.

2, machine leaking: some slack because water pans jams, drain plug, filter dust too much, installation level problem such as hole, air conditioning playing well, but sometimes because of freon is not enough, cause the front part of the evaporator and then dissolved into water freezes.

3, air conditioning freezing machine evaporator inside the

or inadequate or excessive air conditioning refrigerant will freeze, air compressor fault, air conditioning evaporator dirty plugging, air-conditioning thermostat failure.

for air conditioning, if lack of refrigerant, likely will appear the evaporator pressure is too low, thereby to freeze. If there is excessive air conditioning refrigerant inside, also can cause the phenomenon of air conditioning freezing. Because of too much refrigerant could cause the flow to the air conditioning evaporator to freeze.

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