Pichler LG 250 A, Operating And Installation Instructions, Page: 26 / 60

OPERATING AND INSTALLATION INSTRUCTIONS LG 250 A PAGE 26
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The characteristic curves shown are valid
for the unit version with Class F7 (EN 779)
outdoor air and G4 (EN 779) extract air
fi lters, as well as the version with no PTC
preheater battery.
The rated overall output comprises the
power consumption of the two supply
and exhaust air fans as well as the power
consumption of the control system.
CHARACTERISTIC CURVE - EXTERNAL
PRESSURE INCREASE – AIR VOLUME
FLOW
SOUND DATA Level I = 80 m³/h
Level II = 160 m³/h
Level III = 250 m³/h at external pressure
increase of 100 Pa
Note: Tolerances ± 2 dB for acoustic data
Measuring
point Housing
radiation
Outdoor air
connection
Supply air
connection
Exhaust air
connection
Extract air
connection
Level I II III I II III I II III I II III I II III
63 Hz
Lw in dB
55 57 57 64 65 65 79 80 81 76 73 75 66 69 67
125 Hz 50 53 55 55 59 61 67 71 73 69 69 71 52 57 60
250 Hz 41 45 50 51 57 60 63 70 73 62 65 70 49 55 59
500 Hz 35 38 42 39 44 46 55 61 66 55 55 60 34 42 45
1000 Hz 32 36 40 30 33 37 55 62 66 54 56 59 24 31 36
2000 Hz 22 27 34 19 24 29 46 56 61 46 48 53 21 31 36
4000 Hz 15 17 25 12 17 22 39 49 55 39 42 48 17 28 33
8000 Hz 18 18 18 11 12 15 35 46 52 35 37 44 12 17 23
Total
LWA in dB(A)
39 42 46 45 49 52 60 67 70 59 61 65 43 48 51
The LG 250 A compact ventilation unit is
used for controlled, mechanical ventilation
and deaeration of homes, large residential
units and offi
ces and for similar purposes.
The scope of application normally extends
to living spaces between
80 m² and approx. 200 m², with an
adjustable air fl ow of up to
250 m³/h.
The LG 250 A compact ventilation
unit, comprising a compact, non-heat
bridging and thermally-insulated housing
made from galvanised steel sheeting,
externally powder-coated in RAL 9010,
a high-effi
ciency heat recovery system
with air/air-counterfl ow heat exchanger
made from recyclable plastic with a
temperature change rate of 84.7 %,
automatic 100 % bypass, with energy-
saving DC radial fans with constant fl ow
regulation, a fi lter ISO ePM2,5 65% in the
outdoor air and a fi lter ISO Coarse 90%
extract air, an internally wired electronic
control system and a “MINI” control
unit (optional). "TOUCH" for fl oor or wall
mounting in frost-free spaces.
VENTILATION UNIT