Vents TwinFresh Comfo RA1-25 User Manual page 12

1. Prepare a through hole in the outer wall. The hole size and profile is
shown in the figure below.
3. IInsert the air duct in the wall. On the outer wall the telescopic air duct must protrude for the distance that enables installation of the outer ventilation
hood. The distance A is stated in the mounting instruction for the outer ventilation hood. While mounting the telescopic air duct be sure to provide the
minimum slope 3 mm downwards from outside.
Room
12
TWINFRESH COMFO RA-35, RA-50 AND RA-85 VENTILATOR MOUNTING
Model A, mm A [inches]
TwinFresh Comfo RA-35 Ø 140
TwinFresh Comfo RA-50 Ø 160
A
2. After preparing a through hole in the wall cut out a 25 mm (1'') deep
recess for laying of the cables and the contact sockets connected to the
mounting plate.
The recommended recess form is shown in the drawing below.
TwinFresh Comfo RA-35
max 180 (max 7 1/16")
Ø 5 ½"
Ø 6 ⁄ "
max 80
(max 3 1/8")
R90
(R3 9/16")
While mounting several ventilators connected in series provide a cavity
for the cable layout during the recess preparation to enable series
connection of several ventilators.
min 3 mm
TwinFresh Comfo RA-50
TwinFresh Comfo RA-85
max 90
(max 3 ⁄ ")
R100
(R4")
Outdoors
A
www.ventilation-system.com
TwinFresh Comfo
max 200 (max 7 ⁄ ")