Daikin VRV II Series, Design, Installation & Testing Instructions, Page: 61 / 242

Si39-303 Installation
General Information 55
3.2.11 Duct Work (Indoor)
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Operational steps
Taking Account
of Noise and
Vibration
a) Canvas joints must be used between the main unit and the air suction and discharge ducts. These
fittings are designed to inhibit secondary noise resulting from the transmission of vibrations and
operating noise from the main unit to the ducts or to the rest of the building.
b) The speed of the airflow should be taken into account when choosing air suction and distribution grills in
order to keep wind noise to minimum.
!
Important points
1. The air discharge duct must be thermally insulated.
2. The canvas duct on the inlet side must be set in a metal framework.
3. The air suction and distribution grills should be positioned to take into account the possibility of short
circuits.
4. Static pressure should be checked to ensure that the airflow is within the specified range.
5. The air filter must be easily detachable.
Install indoor unit Connect ducts Fit inlets and outlets
(V1040)