Adapt The Venturi Tube Length; Mounting The Venturi Tube - Honeywell ESSER 781443 Installation Instructions Manual

Venturi-Air Duct Kit

10.5 Adapt the Venturi tube length

The Venturi tube of the air duct kit has to be adapted to the diameter of the air duct system. Venturi tubes are
available in three different lengths which can then be cut - if needed - to the required length. Minimum diameter
of the air ducts: 100 mm.
Diameter of the air duct
140 mm to 600 mm
600 mm to 1400 mm
1400 mm to 2700 mm
1)
For systems with a tube length of more than 600 mm the Venturi tube must be about 30 mm longer as the diameter of the air duct.
Fig. 14: Cutting the Venturi tube to the required length.

10.6 Mounting the Venturi tube

Fig. 15: Mounting the Venturi tube
30
Length of the Venturi tube
600 mm
1500 mm
2800 mm
•
Fit the supplied rubber gasket
tube (enclosure ⇔ Venturi tube).
•
Insert Venturi tube in the correct positional-Rohr arrangement
into the oval opening of the air duct kit.
•
Fasten Venturi tube in the bottom of the enclosure with the
supplied short screw
•
The end of the Venturi tube must be terminated with the supplied
end cap (Venturi tubes between 600 mm and 2800 mm only).
Part No.
781446
781447
781448
on the upper side of the Venturi
(subpackage).
FB 798349 / 04.13