10
4.5 Frost protection
The inside air transfers its heat to the outside air within the heat exchanger. This cooling process can
create condensation in the heat exchanger. In periods of moderate to heavy frosts, the heat exchanger
must therefore be protected against frost-damage. The Xcell 350V EC BP is fitted as standard with a
fully automatic frost-protection system; an optional pre-heater may also be fitted. This is also regulated
fully automatically.
4.5.1 Standard frost protection
The Xcell 350V EC BP is fitted as standard with a frost-protection system that temporarily reduces the
outside air supply. This is done by reducing the speed of the intake fan. In the event of extreme cold,
the intake fan can be completely deactivated.
The frost protection system is regulated according to outside temperature, exhaust temperature and
time. The speed of the intake fan is reduced gradually so as not to cause discomfort to the user.
4.6 Technical data
Specifications (normal air volumes / pre-settings)
Power Supply: 230V 50Hz. Cos phi: 0.54-0.60
Position
Flow Rate
Power (W)
Current (A)
Absent
50m³/h @ 10Pa
6
0.09
Low
100m³/h @ 45Pa
16
0.18
Medium
150m³/h @ 105Pa
42
0.39
High
225m³/h @ 195Pa
106
0.87
Maximum
350m³/h @ 225Pa
241
1.78
Sound Power readings
Indication
Flow Rate
Supply Noise dB(A)
Exhaust Noise dB(A)
Absent
50m³/h @ 10Pa
37.3
37.2
Low
100m³/h @ 45Pa
50.4
40.8
Medium
150m³/h @ 105Pa
60.0
48.3
High
225m³/h @ 195Pa
68.9
53.7
Maximum
350m³/h @ 225Pa
74.8
61.1
Specifications
Power Supply: 230V 50Hz. Cos phi: 0.54-0.60
Indication
Flow Rate
Power (W)
Current (A)
Absent
50m³/h @ 10Pa
6
0.09
Low
125m³/h @ 55Pa
23
0.24
Medium
225m³/h @ 195Pa
106
0.87
High
300m³/h @ 350Pa
240
1.77
Maximum
350m³/h @ 225Pa
241
1.78
Sound Power readings
Indication
Flow Rate
Supply Noise dB(A)
Exhaust Noise dB(A)
Absent
50m³/h @ 10Pa
37.3
37.2
Low
125m³/h @ 55Pa
54.2
42.1
Medium
225m³/h @ 195Pa
68.9
53.7
High
300m³/h @ 350Pa
75.7
60.7
Maximum
350m³/h @ 225Pa
74.8
61.1
