Check whether the fuse of the electrical system is blown, whether the insulation of the electrical wires is intact, whether the circuit board is cracked, and whether there is looseness at the joint. In particular, the electrical connection is not a good touch. The wiring screws are usually air-cooled. After using for a long period of time, some problems will not be avoided. If there is a malfunction, we should carefully check the operation status of each part of the machine. System, electrical system, wind system, water system, to determine whether their operation is normal, the following Shandong cold storage installation manufacturers will analyze the inspection method in detail.
First, the refrigeration system
Check whether the pipelines of the refrigeration system have cracks, damage, frost and condensation; whether there is any friction between the air-cooled chiller refrigeration pipelines, the pipelines and the casing, especially the refrigerant pipelines. At the joint, there is no leakage at the joint of the joint, but any oil leaks at the leaking place, and the clean joint of the pipe and the joint of the joint can be cleaned with a clean soft cloth or soft paper.
Second, the electrical system
Check whether the fuse of the electrical system is blown, whether the insulation of the electrical wires is intact, whether the circuit board is cracked, and whether there is looseness at the joint. In particular, the electrical connection is not a good touch, and the wiring screws and the connectors are easily loosened to form a poor touch. Shandong cold storage price
Third, the ventilation system
Check whether the air filter, heat exchanger coil and fins are excessively dusty; whether the air inlet and outlet are dredging; whether the fan and fan blades work normally; whether the wind is normal or not, and whether the water system is normal or not. .
Fourth, the water system
Check whether the water system is leaking; whether the water inlet and outlet are dredging; whether the Pump is working properly. Listening to the power-on and listening to the sound of the compressor of the air-cooled chiller is normal, whether there is abnormal sound, the fan, the pump work with or without noise, the noise is not too large. The air-cooled chiller is under vibration and has low noise under normal conditions. Small cold storage price
Touching the relevant parts of the air conditioner by hand to feel the hot and cold, vibrating and other conditions, help to identify the nature and location of the fault. Under normal conditions, the temperature of the condenser is gradually reduced from top to bottom, and the temperature of the lower part is slightly higher than the ambient temperature. If all the condensers are not hot or the upper part is slightly warm, or if it is hot, but the temperature of the two adjacent pipes is significantly different, it is abnormal. Under normal conditions, the evaporator puts a finger with water on the outside of the evaporator, and there is a feeling of cold and sticking. The capillary at the dryer and outlet should have a warm feeling under normal conditions. If it feels lower than the ambient temperature or there is dew condensation on the surface and temperature difference between the capillary sections, it is not normal. The suction pipe at a distance of 20 cm from the compressor should be at a temperature similar to the ambient temperature under normal conditions.
In order to accurately determine the nature and location of the problem, it is often necessary to use instruments and appearance to view the performance parameters and conditions of the air-cooled chiller. If using a leak detector to check for refrigerant leakage; use a multimeter to measure the power supply voltage, the current to the ground and the working current of each terminal is not in compliance with the requirements, the computer-controlled air conditioner should also measure the potential of each control point is normal Wait.
This article is organized by Shandong Dingsheng Refrigeration Equipment Co., Ltd.! If you have any enquiries, please pay attention to the WeChat public account "Dingsheng Refrigeration" or call 15725158383
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
First, the refrigeration system
Check whether the pipelines of the refrigeration system have cracks, damage, frost and condensation; whether there is any friction between the air-cooled chiller refrigeration pipelines, the pipelines and the casing, especially the refrigerant pipelines. At the joint, there is no leakage at the joint of the joint, but any oil leaks at the leaking place, and the clean joint of the pipe and the joint of the joint can be cleaned with a clean soft cloth or soft paper.
Second, the electrical system
Check whether the fuse of the electrical system is blown, whether the insulation of the electrical wires is intact, whether the circuit board is cracked, and whether there is looseness at the joint. In particular, the electrical connection is not a good touch, and the wiring screws and the connectors are easily loosened to form a poor touch. Shandong cold storage price
Third, the ventilation system
Check whether the air filter, heat exchanger coil and fins are excessively dusty; whether the air inlet and outlet are dredging; whether the fan and fan blades work normally; whether the wind is normal or not, and whether the water system is normal or not. .
Fourth, the water system
Check whether the water system is leaking; whether the water inlet and outlet are dredging; whether the Pump is working properly. Listening to the power-on and listening to the sound of the compressor of the air-cooled chiller is normal, whether there is abnormal sound, the fan, the pump work with or without noise, the noise is not too large. The air-cooled chiller is under vibration and has low noise under normal conditions. Small cold storage price
Touching the relevant parts of the air conditioner by hand to feel the hot and cold, vibrating and other conditions, help to identify the nature and location of the fault. Under normal conditions, the temperature of the condenser is gradually reduced from top to bottom, and the temperature of the lower part is slightly higher than the ambient temperature. If all the condensers are not hot or the upper part is slightly warm, or if it is hot, but the temperature of the two adjacent pipes is significantly different, it is abnormal. Under normal conditions, the evaporator puts a finger with water on the outside of the evaporator, and there is a feeling of cold and sticking. The capillary at the dryer and outlet should have a warm feeling under normal conditions. If it feels lower than the ambient temperature or there is dew condensation on the surface and temperature difference between the capillary sections, it is not normal. The suction pipe at a distance of 20 cm from the compressor should be at a temperature similar to the ambient temperature under normal conditions.
In order to accurately determine the nature and location of the problem, it is often necessary to use instruments and appearance to view the performance parameters and conditions of the air-cooled chiller. If using a leak detector to check for refrigerant leakage; use a multimeter to measure the power supply voltage, the current to the ground and the working current of each terminal is not in compliance with the requirements, the computer-controlled air conditioner should also measure the potential of each control point is normal Wait.
This article is organized by Shandong Dingsheng Refrigeration Equipment Co., Ltd.! If you have any enquiries, please pay attention to the WeChat public account "Dingsheng Refrigeration" or call 15725158383
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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