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Cod. 3541T090 - Rev. 00 - 06/2019

INSTALLATION

Table. 2 - Max. length coaxial ducts

Coaxial 60/100 Coaxial 80/125

Max. permissible length (horizontal) 7 m 20 m

Max. permissible length (vertical) 8 m

Reduction factor 90° bend 1 m 0.5 m

Reduction factor 45° bend 0.5 m 0.25 m

Connection with separate pipes

















fig. 28 - Examples of connection with separate pipes ( = Air / = Fumes)

Table. 3 - Typology

Type Description

C1X Wall horizontal exhaust and intake. The inlet/outlet terminals must be concentric or close enough to be undergo similar wind conditions (within 50 cm)

C3X Roof vertical exhaust and intake. Inlet/outlet terminals like for C12

C5X Wall or roof exhaust and intake separate or in any case in areas with different pressures. The exhaust and intake must not be positioned on opposite

walls.

C6X Intake and exhaust with separately certified pipes (EN 1856/1)

B2X Intake from installation room and wall or roof exhaust

B IMPORTANT - THE ROOM MUST BE PROVIDED WITH APPROPRIATE VENTILATION

For the connection of separate ducts, fit the unit with the following starting accessory:











fig. 29 - Starting accessory for separate ducts

Before installation, make sure the maximum permissible length has not been exceeded, by means of a simple calculation:

1. Establish the layout of the system of split flues, including accessories and outlet terminals.

2. Consult “Table. 5 - Accessories” on page 25 and identify the losses in meq (equivalent meters) of every component, according to the installation position.

3. Check that the sum total of losses is less than or equal to the maximum permissible length in “Table. 4 - Max. length separate ducts” on page 24.

Table. 4 - Max. length separate ducts

Max. permissible length 70 m