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E-mail: ductless@escoglobal.com Website:
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USER SECTION
CHAPTER 3 – INSTALLING YOUR CABINET
Ductless
Inflow
Door
Opening
Person
Walking
Air-Con
Outlet
Room
Air-Con
3.3 INSTALLATION LOCATION REQUIREMENT
Installation location of the cabinet has a big impact on its overall performance. Installing the cabinet at a
location where it is likely to be exposed to a lot of external airflow disturbances might lead to loss of
containment. As can be seen in the graph below, your cabinet’s internal airflow velocity is relatively small
compared to the airflow disturbances potentially caused by opening of a door, a person walking by or for
that matter being exposed to an air-conditioning outlet. All these things can therefore affect the proper
functioning of ductless fume cabinets, thereby impairing the protection offered by the cabinet to both the
operator and the samples placed inside it.
Relative Air Velocities
Therefore while installing the cabinet, it should be located as far away as possible from the above-
mentioned sources of airflow disturbance and in an orientation which optimally shields the cabinet’s
internal airflow from all external airflow disturbances. Besides, the cabinet should not be placed close to
another cabinet.
Please refer to the extracts from British Standard BS 7258- PART 2:1994 (printed with permission) in
section 3.4 for more details on how to select a proper location for your cabinet. Other factors that need
to be observed during installation include:
3.3.1 There should be adequate space left for cleaning the back of the cabinet
3.3.2 The location should be far away from any kind of heat source (heaters, fan converters etc.) for
facilitating optimum operating conditions. Please refer to the environmental/electrical conditions in
section 3.8 for more detailed information
3.3.3 There should be unobstructed access to the main power supply point.
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