8. Installation of acoustic insulation material to prevent sound reflections from the cooling air
intake.
9. Ventilation proposals.
If the installation is done without ducts, the ventilation flow can be calculated as follows:
For SI Units
Q = (0.1799 x N + 2.465) / dT
• dT = Temperature difference between the unit room and outside temperature (°C)
• N = The installed unit power (kW)
• Q = The ventilation flow leaving the unit room (m³/s)
For a temperature difference of 5 °C, this results in following ventilation flow:
Power (kW) Ventilation flow (m³/s)
90 3.731
10. Common ducting for multiple units is not allowed.
Side-by-side unit installation
All guidelines of the unit installation proposal are still valid.
Metric units
The numbered list items below refer to the balloon references in the figure.
1. The distance between the units has to be as close as possible, without touching each other.
Instruction book
48 AIF999999
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