A
B
C
D
L1
L2
L3
L4
L2-L3-L4
L1
A
35
PHASE 9
: AERAULIC CONNECTIONS
17
Air ducts are not supplied with the unit. The installer must buy and install them separately.
For a correct installation
• Clean the joint surfaces between the duct and the unit/coil.
• Apply a gasket to the flange in order to prevent air infiltration.
• Carefully tighten the connecting screws.
• proceed with sealing the gasket in order to optimise its seal.
In order to ensure the seal of the connection and the integrity of the unit's structure, it is essential to
make sure that the ducts do not weigh on it, being supported by their own brackets.
Upon request to the manufacturer, an attenuator is available, specific for Modular T to be mounted
on the return or supply air duct.
17
Aeraulic connections
DUCT
A
Exhaust air
B
Outside air
C
Return air
D
Supply air
STRAIGHT DUCTS
A
MINIMUM LENGTH
SIZE
3
4
5
6
7
Straight duct
L1
mm
if necessary, a bend can be fitted directly on the collar
L2
mm
250
315
355
400
500
L3
mm
250
315
355
400
500
L4
mm
500
630
710
800
1000
RH
VERSION UNITS