Installation |
9
4.4 Connection
4.4.1 Ducting
Air to and from the unit is led through a duct system. To ensure long life and satisfactory cleaning possibilities, ducts
made of galvanised steel are highly recommended.
To obtain low energy consumption and required airflow, the duct system should be commissioned for low air speeds
and low pressure drop.
Fig. 5 HW unit
1
Filter, supply air
2
Fan, supply air
3
Heater, electrical or water
4
Electrical connection box
5
Pressure guard filter
6
Air flow sensor (only EL units)
7
Outdoor air sensor
8
Duct connection, outdoor air
9
Duct connection, supply air
Note:
Duct connections/duct ends should be covered during storage and installation
Grilles for intake/roof units must be installed according to building regulations in force.
Assemble the unit in the direction of airflow.
Secure all joints between ducting and the Topvex SF unit accurately using a minimum of 4 rivets per joint (circular ducts)
and 4 M8 bolts per joint (rectangular ducts). Rectangular ducts requires sealing strips or sealing compound to ensure
the air tightness.
Caution
To avoid fan noise being transferred via the ducting system, mufflers should be installed on supply air.
Note:
If the unit is installed in a cold place make sure that all joints are covered with insulation, and tape well.
130324 | A004
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