An air heat exchanger is a device that is used to transfer heat between two air streams. It is commonly used in heating, ventilation, and air conditioning (HVAC) systems. The heat exchanger can be designed to allow the two air streams to be either separately or together.
Generally, we classify the air heat exchanger into Finned Tube Heat Exchanger, Plate Type Air Heat Exchanger, Seamless Pipe Air Heat Exchanger, Twisted Heat Exchanger, etc. according to its structure.
Air heat exchangers are commonly used for a variety of applications in the HVAC system, such as space heating, cooling, humidification and air circulation. In space heating applications, air heat exchangers are used to transfer heat from outside air to indoor air, in order to provide heat for the building. In cooling and air circulation applications, air heat exchangers are used to transfer heat from an indoor space to the outside. in order to keep the building cool.
The main advantage of using an air heat exchanger is that it is very efficient in transferring heat energy between the two streams without any loss. It is also relatively inexpensive, compared to other types of heat exchangers. Additionally, air heat exchangers are small and compact, making them ideal for applications in tight spaces.
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Safety Precautions:
For the safety of you and your equipment, please read carefully the following:
1. It is not possible to remove the test wire directly when measuring inductive load, so as to avoid the safety of test personnel and equipment due to the discharge of inductance. The output of this machine is equipped with a discharge circuit. When the output is turned off, the inductor discharges energy through the instrument. Be sure to remove the test lead after the discharge instruction is complete.
2. For no-load regulator transformer, it is not allowed to switch tap changer during measurement.
3. If the power supply suddenly loses power during measurement, the unit will automatically start discharging. Do not remove the wiring immediately. Wait at least 30 seconds before removing the wiring.
4. When measuring, other untested windings should not be short-circuited to ground. Otherwise, the transformer magnetization process will become slower and the data stabilization time will be prolonged.
5. Check the power supply voltage before starting up: AC 220V ± 10% 50Hz.
6. During the test, please confirm that the device under test has been powered off and disconnected from other live devices.
7. The housing must be reliably grounded during the test.
8. Do not allow irrelevant items to be stacked on and around the device panel during the test.
9. When replacing fuses and fittings, use the same model as the instrument.
The DC resistance quick tester can automatically select the test current according to different types of power transformers and display the test results at the fastest speed. The DC resistance tester has the functions of storage, printing and discharge indication. It has built-in non-power-failure memory and can store measurement data for a long time. The adoption of the liquid crystal display makes the instrument have a good man-machine interface and is the preferred device in DC resistance test work.