Hoval RoofVent CON-9, Design Handbook

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3.3 Air flow rate, electrical connections
Unit type LKW-6 LKW-9 LKW-10
Air distribution Nominal air flow rate
1)
Supply air m³/h 5000 7650 8400
Exhaust air m³/h 5000 7650 8400
Floor area reached Max. m² 426 748 855
Energy recovery Heat recovery efficiency, dry % 60 63 57
Heat recovery efficiency, wet % 68 73 65
Fan characteristics Supply voltage V AC 3 x 400 3 x 400 3 x 400
Permitted voltage tolerance % ± 10 ± 10 ± 10
Frequency Hz 50 50 50
Active power per motor kW 1.8 3.0 4.5
Current consumption A 4.0 6.5 9.9
Set point of thermal relays A 4.6 7.5 11.4
Speed of rotation (nominal) rpm 1440 1435 1450
Actuators Supply voltage V AC 24 24 24
Frequency Hz 50 50 50
Control voltage V DC 2…10 2…10 2…10
Torque Nm 10 10 10
Run time for 90° rotation s 150 150 150
Filter monitoring Factory setting of differential pressure switch Pa 300 300 300
1)
Refers to: RoofVent
®
LKW with heating/cooling coil type C and vertical supply air discharge direction
Table C4: Technical data, RoofVent
®
LKW
3.4 Sound levels
Unit type LKW-6 LKW-9 LKW-10
Operating mode VE2 REC VE2 REC VE2 REC
Position
Sound pressure level
(at a distance of 5 m)
1)
dB (A) 46 60 58 47 46 52 66 57 49 48 54 68 60 52 51
Total sound power level dB (A) 68 82 80 69 68 74 88 79 71 70 76 90 82 74 73
Octave sound power level 63 Hz dB (A) 51 63 62 48 54 52 69 59 54 56 54 71 62 57 59
125 Hz dB (A) 55 71 70 56 63 63 78 70 60 63 65 80 73 63 66
2)
250 Hz dB (A) 61 76 74 64 63 65 81 71 63 66 67 83 74 66 69
500 Hz dB (A) 61 75 71 61 58 66 81 70 62 61 68 83 73 65 64
1000 Hz dB (A) 65 77 72 63 57 71 81 72 67 60 73 83 75 70 63
2000 Hz dB (A) 57 72 72 60 56 66 80 73 64 58 68 82 76 67 61
4000 Hz dB (A) 49 71 71 57 48 58 76 71 58 50 60 78 74 61 53
8000 Hz dB (A) 36 65 63 49 42 44 70 62 51 41 46 72 65 54 44
1)
with hemispherical radiation in a low-reflection environment
2)
outdoors (roof unit)
Table C5: Sound levels, RoofVent
®
LKW
RoofVent
®
LKW
Technical data