The item 　 that the attention answers when the room that do not have dirt is chosen with air conditioning box the issue that place should consider an AHU that article place discusses a problem to choose kosher room namely. To every engineer or stylist character, the air conditioning system that chooses kosher room is one of the most complex issues probably, because the air conditioning condition of kosher room wants than ever what air conditioning interval comes is complex and stricter, the person is used at hospital, medicines and chemical reagents to make, production field of accurate electron spare parts. Choosing correct equipment is the obligation that the architect should use up. Its divide an article general into a few parts to make discuss, I regards the consummate after arranging as following report its. (One) each national governments are opposite with respect to governmental decree character 　 the design requirement requirement of kosher type is different, should notice the season of the government when the design. Design the AHU of kosher room to answer government office adds up to FDA code or EPA arranges air rule. IAQ already was taken seriously gradually, the code of IAQ should notice when the design. Look use situation and decide, filter the method can be divided into machinery to filter again law and chemistry filter law. Primary filter, intermediate filter, efficient filter with aseptic environment with machinery the law can be reached namely. The syringe of environmental requirement chemistry to achieve exhaust (Scrubber) , incinerator or more machinery and chemistry filter equipment is indispensible by application. Active carbon or tall manganese acerbity salt can achieve the requirement that chemistry filters effectively. (2) with respect to cost character 　 is in the building with a few special appearance, the fee that the design that those addition and equipment use is in long-term interest must make correct judgement. On a few special application, be used to a design normally the two filters to ask in order to reach place position that reach 3 times. If traditional kosher room meets a requirement when relatively strict part, design the increases price share outside must having a lot of specified numbers. Kosher room should avoid to stop the phenomenon of machine as far as possible, must notice in built cost wear is reached but * is spent. Adjust in air door on, when the architect is designed, different to the requirement of temperature and humidity, resembling is the living environment that designing people general. In living environment, the demand that stays machine period and temperature and humidity to go up relatively place equipment to come up high. The service positive result that place reachs to offer on quality so cannot be ignored. In the facility that special kosher room conveys or receives, the cost on application is being revised in the mistake is costlier, and if cannot go up with blueprint same, may cannot carry out. When designing special kosher room, locomotive cost includes in architectural cost, and locomotive cost includes to need the motor that can run continuously to become this reaching to repair again protect cost. Of cost Baconian have plant cost, run continuously cost, upkeep. Calculate what locomotive cost must consider energy to use up the height that reachs efficiency. Before stage of efficient or new machine is started, outside can be being introduced first, enrage, in mixture system of such pipeline to gyral impulsion, communication board, exhaust and air circumfluence, use the efficiency that can keep taller for a long time. Go up in the operation and must consider to whether raise whole facility cost on locomotive charge continuously. (3) below noise of the temperature with with respect to working parameter set character peculiar 　 , humidity, vibration and run environmental requirement, major choose those who affect facility. certain example, the set point of temperature and humidity must want to maintain inside acceptable range in long period or wholer environment reach a process. Of kosher room add heating power law to be able to use gas of hot water, vapor and electric energy, usable ice water, alcohol or cold intermediary are cooling. Use vapor, injector, atomizer and osmotic method can be added wet. Should evaluate when adding wet source, what should notice particularly is to add wet process and add wet method to whether assure cleanness. Manage device uses typical kosher room ventiduct one has the damp in the corporeal purify air that absorbs force or absorption affinity or snail of alcohol of use low temperature to be in charge of a system to go wet. After set of temperature and humidity, must consider air flow parameter to whether satisfy place to need. Typical kosher room must be maintained often press in atmosphere below. Because the pressure inside this room reachs the value of bulk,must give appropriately control. The noise of fan and shake must be gone up by the consideration. Proper assembler material and motor rotate speed can avoid unwanted noise and vibration. Fan structure can use leather belt drive or direct drive. Wind speed control and alterable frequency control can need to decide noise and oscillatory limit according to bulk. Prevailing is decreased brace up the method is reached for plant spring base, fixed base be far from air conditioning box. Commonly used sound attenuator has movable type floor, snubber and fan flexibility to reach adjustable spend control. Sound attenuator keeps apart fan and design to become thin character, can reduce tie of a few degrees of scale. Besides the control of particle, should consider particularly have (the unit process of cargo bandling that A) carries a bacterium, (B) corrosive or poisonous chemical article, (C) volatile or explosive drug, (D) still has indoor the air quality that reachs exhaust, (E) safety, (F) equipment life and maintain ability. (4) the real volume that can affect AHU with respect to the utilization rate that builds space of consideration respect 　 . Maintain the position of the door and access dashboard must decide carefully, be located in the equipment of little space especially. Should prevent the surface to condense, besides involve fungus infection of hand or foot action and those who condense in equipment is exterior besides, damp delivers equipment interior to form element to also have adverse effect to air, mix gas to be formed to interior also have adverse effect, will make loss of life, cost rises. Damp action will distribute malady and contaminant, get efficiency low darkling. The corrosive of bring down building pledges and an alloy, can use the above-listed material to make kosher room life increases. When designing device space, should retain proper access, use with be cleaned fully or be being maintained. Make the coil that makes with aluminium to coppery, stainless steel, should notice the sort of circumstance is applicable those coil. 5) the norms method 　 that manages complex is expatiatory the AHU of one C/R is job of a huge, increase completely to discuss and understand this to machine a method to be able to offer its range at C/R environment, with the ground rational parameter is applied on spendable operation go up to also must be estimated. Major and the AHU firm that have experience can assist the person that use using the complex details that go up in order to make machine won't excessive design, this answers namely in C/R design phase mainly detailed adds an attention. Its ask to be opposite whether easily the mesh in the ceiling has a lot of planting the choice of material, its most those who be afraid of is particle leak.

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