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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.
RH
VERSION UNITS
L1
17
Aeraulic connections
L1
L2
Straight duct
L3
L4
L1
L2
L3
B
A
C
STRAIGHT DUCTS
SIZE
3
mm
if necessary, a bend can be fitted directly on the collar
250
mm
mm
250
mm
500
A
L4
D
A
MINIMUM LENGTH
4
5
315
355
315
355
630
710
L2-L3-L4
DUCT
A
Exhaust air
B
Outside air
C
Return air
D
Supply air
6
7
400
500
400
500
800
1000
35
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