Ventilation installation
Duct system
Legislation
All work must be carried out by suitably qualified persons and in compliance with existing legislation
and regulations.
Duct connections
All duct connections have LSM20 flange profiles.
Balancing
Important information
To ensure the ventilation system operates optimally, it is important that it is balanced correctly. Nilan
A/S recommends that this is done by professionals.
If a pressure control system has been purchased additionally, set the duct pressure in the pressure
control boxes when balancing the unit.
Performance curves for SEL value assessment
VPM 600
Assessment of SEL value at various airflow / pressure losses.
1200
1800
2100
2500
0
100
200
300
400
500
600
700
800
900
1000
3000
3500
4000
4500
5000
5500
6000
6500
7000
Pt Ex
ter
na
l p
ress
ur
e
dr
op
[P
a]
q
V
[m
3
/h]
VPM600, Air performance curves
Capacity Curve
Pressure drop water coil [Pa]
SFP [J/m3]
36