Fan heater - LEO L3 | Flowair

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Fan heater, three speed FLOWAIR axial fan, EPP casing, rotating mounting bracket, three row heat exchanger, 7-50 kW heating capacity, air flow 1200/2100/3400 m³/h, fan power 120/240/340 W, weight 17.8 kg, 3 year WARRANTY
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Arvydas Palivonas

LT, RU, EN
+370 601 74426

Sales representative for Vilnius, Ukmergė, Utena, Kaišiadorys and Varėna regions Get Offer

Andrius Lekarevičius

LT, RU, EN
+370 606 11865

Sales representative for Kaunas, Panevėžys, Šiauliai, Telšiai, Klaipėda, Tauragė, Marijampolė and Alytus districts Get Offer
Model: LEO L3
General data
Heating capacity at 90/70°C water and 0°C air temperature
kW
49,4
Heating capacity at 40/30°C water and 20°C air temperature
kW
7,3
Max. air flow
m³/h
3400
Fan data
Power supply
V/Hz
230/50
Fan type
3-speed AC
IP / Insulation class
54 / F
Fan data at 3rd (max) speed
Air flow
m³/h
3400
Air flow range (measured horizontaly at 0.5 m/s speed limit)
m
19,0
Air flow range (measured verticaly at 0.5 m/s speed limit)
m
6,8
Power consumption
W
340
Current consumption
A
1,5
Acoustic pressure level at a distance of 5 m from the unit, in the 1500 m³ room of medium capabillity of sound absorption
dB(A)
64,1
Acoustic power level according to EN ISO 3744:2011
dB(A)
79,2
Fan data at 2nd (mid) speed
Air flow
m³/h
2100
Air flow range (measured horizontaly at 0.5 m/s speed limit)
m
11,5
Air flow range (measured verticaly at 0.5 m/s speed limit)
m
4,4
Power consumption
W
240
Current consumption
A
1,2
Acoustic pressure level at a distance of 5 m from the unit, in the 1500 m³ room of medium capabillity of sound absorption
dB(A)
54,5
Acoustic power level according to EN ISO 3744:2011
dB(A)
69,6
Fan data at 1st (min) speed
Air flow
m³/h
1200
Air flow range (measured horizontaly at 0.5 m/s speed limit)
m
6,5
Air flow range (measured verticaly at 0.5 m/s speed limit)
m
2,8
Power consumption
W
120
Current consumption
A
0,6
Acoustic pressure level at a distance of 5 m from the unit, in the 1500 m³ room of medium capabillity of sound absorption
dB(A)
42,1
Acoustic power level according to EN ISO 3744:2011
dB(A)
57,2
Installation data
Max. operating temperature
°C
60
Max. heating water temperature
°C
120
Max. operating pressure
MPa
1,6
Hydraulic connection
Ø "
¾
Other data
Heat exchanger
Copper with aluminum plates, three rows
Casing
EPP - expanded polypropylene
Color
Grey / graphite (ral 9007)
Dimensions
Width
mm
650
Depth
mm
355
Height
mm
580
Weight
kg
17,8
Weight of unit filled with water
kg
20,5

Dimensions

Model: LEO L3
Dimensions

Heating capacity tables

LEO L3 airflow on 3 speed = 3400 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
Tw1/Tw2 = 120/90°C
65,2
1942
11,9
63,0
62,2
1852
10,9
65,0
59,2
1762
10,0
67,0
56,2
1672
9,1
68,5
53,2
1584
8,2
70,5
 
0
5
10
15
20
Tw1/Tw2 = 90/70°C
49,4
2182
15,7
48,0
46,4
2046
13,9
49,5
43,3
1910
12,3
51,5
40,2
1775
10,8
53,5
37,1
1639
9,3
55,0
 
0
5
10
15
20
Tw1/Tw2 = 80/60°C
42,6
1872
12,2
41,0
39,5
1736
10,7
43,0
36,4
1599
9,2
45,0
33,3
1462
7,8
47,0
30,2
1325
6,6
48,5
 
0
5
10
15
20
Tw1/Tw2 = 70/50°C
35,7
1564
9,1
34,5
32,6
1426
7,7
36,5
29,5
1289
6,4
38,5
26,3
1150
5,3
40,0
23,1
1010
4,2
42,0
 
0
5
10
15
20
Tw1/Tw2 = 60/40°C
28,8
1254
6,4
28,0
25,6
1115
5,2
29,5
22,4
975
4,1
31,5
19,1
832
3,1
33,5
15,8
686
2,2
35,0
 
0
5
10
15
20
Tw1/Tw2 = 40/30°C
20,5
1775
12,6
20,0
17,3
1499
9,3
21,5
14,1
1220
6,5
23,5
10,8
935
4,0
25,5
7,3
637
2,1
27,0
LEO L3 airflow on 2 speed = 2100 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
Tw1/Tw2 = 120/90°C
47,1
1402
6,6
73,5
44,9
1338
6,0
75,0
42,8
1274
5,5
76,5
40,6
1210
5,0
78,0
38,5
1147
4,6
79,0
 
0
5
10
15
20
Tw1/Tw2 = 90/70°C
35,6
1572
8,7
56,0
33,4
1476
7,7
57,0
31,2
1379
6,8
58,5
29,1
1282
6,0
60,0
26,9
1186
5,2
61,5
 
0
5
10
15
20
Tw1/Tw2 = 80/60°C
30,8
1352
6,8
48,0
28,6
1254
5,9
49,5
26,3
1157
5,1
51,0
24,1
1059
4,4
52,5
21,9
961
3,7
53,5
 
0
5
10
15
20
Tw1/Tw2 = 70/50°C
25,9
1131
5,1
40,5
23,6
1033
4,3
42,0
21,4
934
3,6
43,0
19,1
835
3,0
44,5
16,8
735
2,4
46,0
 
0
5
10
15
20
Tw1/Tw2 = 60/40°C
20,9
909
3,6
32,5
18,6
809
2,9
34,0
16,3
708
2,3
35,5
13,9
605
1,8
36,5
11,5
499
1,2
37,5
 
0
5
10
15
20
Tw1/Tw2 = 40/30°C
14,8
1281
7,1
23,0
12,5
1083
5,2
24,5
10,2
883
3,7
26,0
7,8
677
2,3
27,0
5,3
456
1,1
28,0
LEO L3 airflow on 1 speed = 1200 m³/h
Tp1
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
PT
Qw
∆pw
Tp2
kW
l/h
kPa
°C
 
0
5
10
15
20
Tw1/Tw2 = 120/90°C
31,2
930
3,1
85,5
29,8
887
2,9
86,5
28,4
846
2,6
87,0
27,0
804
2,4
88,0
25,6
763
2,2
89,0
 
0
5
10
15
20
Tw1/Tw2 = 90/70°C
23,6
1040
4,1
64,5
22,1
977
3,7
65,5
20,7
914
3,3
66,5
19,3
851
2,9
67,0
17,9
788
2,5
68,0
 
0
5
10
15
20
Tw1/Tw2 = 80/60°C
20,4
896
3,3
56,0
19,0
833
2,9
57,0
17,5
769
2,5
57,5
16,1
705
2,1
58,5
14,6
641
1,8
59,0
 
0
5
10
15
20
Tw1/Tw2 = 70/50°C
17,2
752
2,5
47,0
15,7
688
2,1
48,0
14,2
623
1,8
49,0
12,7
557
1,5
49,5
11,2
491
1,2
50,0
 
0
5
10
15
20
Tw1/Tw2 = 60/40°C
13,9
606
1,8
38,0
12,4
539
1,4
39,0
10,8
472
1,1
39,5
9,3
403
0,9
40,0
7,6
330
0,6
40,5
 
0
5
10
15
20
Tw1/Tw2 = 40/30°C
9,8
849
3,4
27,0
8,3
719
2,5
27,5
6,8
586
1,8
28,5
5,2
446
1,1
29,0
3,2
279
0,5
28,5
  • PT - heating capacity
  • Tp1 - air temperature at the unit inlet
  • Tp2 - air temperature at the unit outlet
  • Tw1 - heating medium temperature at the heat exchanger inlet
  • Tw2 - heating medium temperature at the heat exchanger outlet
  • Qw - heating medium flow rate in heat exchanger
  • Δpw - heating medium pressure drop in heat exchanger

If you want to calculate heating capacity at different parameters you can do this at manufacturer website.