Determination of the installation location of the HVAC unit
For the HVAC installation unit, there are two installation forms that have been seen so far. The first is to build an air-conditioning room and install the air-conditioning unit; the other is to use the ceiling/mezzanine installation method.1. Construction concerns of air-conditioning room
The construction of the air-conditioning room requires attention to the site selection, the convenience of subsequent use and daily management and other comprehensive construction.Location selection of air-conditioning room
①It should be as close as possible to the control area of the HVAC unit to avoid the supply/return air pipeline being too long, which will cause the piezoresistance to increase and affect the use efficiency of the air-conditioning unit;②The room should avoid close to some precision laboratories;
③The material transportation in the follow-up maintenance process should be considered;
④It is more important to consider the location of the new air outlet of the air conditioner, and arrange the adoption of fresh air reasonably. Generally, the fresh air outlet should be kept away from the main roads of the city;（Note: There are generally two options for the selection of the fresh air form of the air conditioner: one is to open the fresh air outlet for each air conditioner unit. This opening method can be directly opened at the appropriate position of each room, or it can be opened on the roof or other suitable place to take fresh air;the other is to build a fresh air house for all HVAC system, and complete the management of fresh air in a unified way.）
⑤The air-conditioning room should ensure the supply of electric facilities, cold water, hot water, steam and other public media;
⑥ The air-conditioning room should consider the layout and construction of the appropriate air-conditioning control room, which is convenient for the centralized and convenient management of the air-conditioning units.
2. Selection of Air Conditioning Ceiling/Mezzanine Installation
For some sampling rooms, laboratories and other rooms, there will be options to install the HVAC system on the ceiling / mezzanine. In this case, the issues that need to be considered include:①The structural safety of the suspended ceiling/interlayer should be considered, including the hoisting process, the fixing process, and the vibration of the air-conditioning unit during operation. The key point is to ensure the safety of the air-conditioning operation.
②It is necessary to consider the maintenance and repair of the air-conditioning unit during use, and it is necessary to ensure that there is enough maintenance space.
③The supply of public medium in the installation area needs to be considered, which directly determines the selection of air-conditioning units.
④The installation of the air-conditioning condensate drainage pipeline needs to be considered.
⑤ The control of the mezzanine air-conditioning unit, etc.
According to the use function of the HVAC System and the layout of the clean workshop, the installation position of the purification air conditioner unit should be comprehensively considered. In the layout, the air-conditioning units should be centrally arranged as much as possible to facilitate subsequent management.
The installation location of the purification air-conditioning unit, in addition to the new air outlet is a key point that needs to be considered when selecting the site, regarding the daily monitoring route of the subsequent air-conditioning unit, the viewing method of relevant parameters and the personnel passage should also be fully considered. It should be ensured that the installation location of the air conditioner can meet the general principles of convenient installation, stable operation, location compliance, and convenient daily monitoring and maintenance, so as to avoid the inconvenient impact of improper location selection on subsequent installation and use.