Ceiling air -conditioning unit is an air -conditioning equipment installed on the top of the room, mainly composed of mixed air sections, filtering sections, cold sections, humidification sections, sections, etc.The evaporator evaporates through the evaporator and combined with heat exchange conversion to realize the adjustment of indoor air.
1. Function and application
Ceiling air -conditioning units have functions such as air filtration, cooling, dampness, heating, and introduction of fresh air. It is suitable for air purification systems of various cleaning plants, such as hotels, shopping malls, airports, hospitals, factories, scientific research units and other comfortable places.Its air volume range ranges from 1500 to 15000m3/h, and the cold volume ranges from 7.8kW to 277.3kW. There are many models and specifications for users to choose from.
2. Installation and maintenance
1. Installation method: The ceiling air -conditioning unit should be installed horizontally in the ceiling layer. The condensed water pipe side is allowed to be five thousandth of thousands of thousands, but it is not allowed to be high.There should be sufficient installation and maintenance space around the unit.
2. Installation Note: The condensed water discharge with the unit link must be provided with water seal, and the water seal must have sufficient height; the waterfall connection pipe of the table is the lower outlet.; Air ducts and water pipes need to be flexible, and the torque should not be too large when taking over, so as not to damage the heat exchange.
3. Maintenance difficulty: Due to the high installation location of the ceiling air -conditioning unit, it is necessary to use ladder and other equipment during maintenance, so the maintenance difficulty is relatively large.
3. Working principle
The working principle of the ceiling air -conditioning unit is that the airflow flows into the impeller from axial direction, turns 90 ° in the impeller for radial flow, and then discharges from the outer edge of the impeller.The impeller of the centrifugal fan has three types of forward, radial and backward, each with advantages and disadvantages.After the frozen water evaporates through the evaporator, the heat changes are changed through the fan to realize air adjustment.
The above is the basic knowledge of the ceiling air -conditioning unit