11
Scent Diffuser Positioning
It is important to locate an insertion point where the scent output will be smoothly drawn
into and mixed with the airflow. This usually means those parts of the AHU where the
static pressure is negative.
Ideal locations:
• Before the supply fan with injection through the wall of the AHU. Positioning
immediately before the fan and after the coils if possible or in the mixed air chamber.
• Behind the blower with the entire scent diffuser mounted inside the AHU in the mixed
air chamber.
• Outside the AHU in the Supply Air duct.
Tube Connection on Air Duct
CORRECT
CORRECT
WRONG. Tube has a pocket,
this part will fill up with oil.
pocket
Best practice when installing in an AHU is to place the hose guide after the heating and
cooling coils. If this is not possible, the scent output can pass over hot water, steam,
chilled water, and DX coils.
Open gas flames should absolutely be avoided. If installation must be over gas
heated coils or open gas flames, contact AromaTech Technical Support.
The best location for the Scent Machine is below the Scent Point. The air tube should be
run upward as short a distance as possible and NEVER MORE THAN 3 FEET. If an upward
air tube run is not possible, care should be taken to support the hose to prevent sagging
or any low spots in the run to avoid any possibility of condensation and liquid collection
which will block the scent output. Give the air tube an upward slant along its run
(See Image below)
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