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Si33-102.book Page 54 Tuesday, June 26, 2001 3:18 PM
Installation
Important points
1. Earthing
Have the indoor and outdoor units both been earthed?
∗ If the apparatus is not properly earthed then there is always a risk of electric shocks. The earthing of the
apparatus must be carried out by a qualified person.
3.2.11 Duct Work (Indoor)
Operational steps
Install indoor unit
Taking Account of a) Canvas joints must be used between the main unit and the air suction and discharge ducts. These
Noise and Vibration
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.
54
Connect ducts Fit inlets and outlets

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SiE33-102
(V1040)
General Information