11.
The installer should ensure that the Supply Air Valve is locked in the open position shown above. The performance data in the table below is
based on this.
SETTING SUPPLY AIR VALVE OPENING
A small slotted head screwdriver can be used to adjust the fan speed on VR1 and VR2 in the Control Box. The table below shows the approximate
airflow, power consumption and specific fan power at approximate positions. Actual airflows should be confirmed on site using an appropriate airflow
measuring device.
SETTING VR1 AND VR2 VENTILATION RATES
INDICATIVE PERFORMANCE DATA
Position of
VR1 or VR2
Ventilation
Rate (I/s)
Power
Consumption (W)
SFP
Fully anti-clockwise
0
0
0
10% clockwise
0
0
0
20% clockwise
22
2
0.09
30% clockwise
30
5
0.17
40% clockwise
36
10
0.28
50% clockwise
38
15
0.39
60% clockwise
44
18
0.41
70% clockwise
48
23
0.48
80% clockwise
54
32
0.59
90% clockwise
56
36
0.64
100% clockwise
58
40
0.69
To optimise air distribution and limit noise,
the installer must ensure that the front edge
of the adjustable control disc is fixed in place
flush with the peak of the curved edge of the
outer body of the Supply Air Valve.
STANDARD CONFORMITY
•
2014/35/EC Low Voltage Directive (LVD)
Electrical Safety
•
EN60335-1:2012+A11:2014+A13:2017+A1:2019+A2:
2019+A14:2019
•
EN60335-2-80:2003+A1:2004+A2:2009
•
EN62233:2008
Certificate No: DL-20210123001C
