Part 3 - S
yst
em Design and Ins
talla
tion
Amazon Unitario Top Discharge
139
3 Outdoor Unit Ducting and Shielding
3.1 Ducting Requirements
Depending on the height of adjacent walls relative to the height of the units, ducting may be required to ensure proper air
discharge. In the situation depicted in Figure 3-3.1, the vertical section of ducting should be at least H-h high.
Figure 3-3.1: Top of unit below top of adjacent wall
h
H
-h
H
3.2 Design Considerations
Outdoor unit ducting design should take account of the following:
Each duct should contain no more than one bend.
Vibration isolation should be added to the connection between the unit and the ducting to avoid vibration/noise.
Installing louvers is required as doing for safety, they should be installed at an angle no greater than 15° to the
horizontal, to minimize the impact on airflow.
