Heater with explosion-proof fan it may be used in facilities with special security requirements such as woodworking shops, paint shops, welding shops, etc. The heater can be installed inside buildings in the explosion endangered area Z1, in rooms endangered by explosion of gas, vapour, liquids of II...
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LEO EX - explosion-proof fan (IP44), powder painted steel casing
LEO EX L1 One row heat exchanger, 26 kW heating capacity, air flow 4300 m³/h, fan power 290 W, weight 33.1 kg, 2 year WARRANTY
LEO EX L1
One row heat exchanger, 26 kW heating capacity, air flow 4300 m³/h, fan power 290 W, weight 33.1 kg, 2 year WARRANTY
LEO EX L2 Two row heat exchanger, 45 kW heating capacity, air flow 3800 m³/h, fan power 290 W, weight 34.2 kg, 2 year WARRANTY
LEO EX L2
Two row heat exchanger, 45 kW heating capacity, air flow 3800 m³/h, fan power 290 W, weight 34.2 kg, 2 year WARRANTY
Weight [kg] LEO EX 25 LEO EX 45
Unit 33,1 34,5
Unit filled with water 34,2 36,6
Air stream range [m] LEO EX 25 LEO EX 45
L* 24 22

* range of isothermal stream, limit speed 0,5 m/s, air temperature 20°C

Water heater LEO EX dimensions

Power supply 3 x 400V/50Hz
Power consumption 290 W
Current consumption 0,88 A
IP 44
Insulation class F
Water connection 3/4"
Acoustic pressure level 51 dB(A)*
Max. heating water temperature 130°C
Max. operating pressure 1,6 MPa

Heating capacity tables

  LEO EX 25 LEO EX 45
  V = 4 300 m3/h V = 3 800 m3/h
Tp1 PT Qw Δpw Tp2   PT Qw Δpw Tp2
0C kW l/h kPa 0C   kW l/h kPa 0C
  Tw1/Tw2 = 90/70
0 25,5 1090 7,6 17,4   44,9 1882 12,5 34,8
5 23,7 1018 6,7 21,2   41,0 1738 11,0 36,5
10 22 946 5,9 25   37,3 1630 9,7 39,1
15 20,2 874 5,1 28,9   34,6 1476 8,3 41,9
20 18,4 805 4,3 32,7   31,8 1368 7,1 44,7
  Tw1/Tw2 = 80/60
0 21,7 946 5,9 15   37,2 1584 9,8 28,9
5 20,0 874 5,1 18,7   34,4 1476 8,4 31,7
10 18,2 802 4,4 22,5   31,5 1368 7,2 34,5
15 16,5 730 3,7 26,3   28,6 1224 6,1 37,2
20 14,8 658 3 30   25,7 1116 5 40
  Tw1/Tw2 = 70/50
0 18 802 4,4 12,4   31,2 1340 7,4 24,2
5 16,3 694 3,7 16,2   28,4 1225 6,3 27,0
10 14,5 622 3 20   25,5 1080 5,2 29,8
15 12,8 550 2,4 23,8   22,6 975 4,2 32,5
20 11,1 478 1,9 27,6   19,7 865 3,3 35,3
V
PT
Tp1
Tp2
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-
-
-
airflow
heating capacity
air temperature at the unit inlet
air temperature at the unit outlet
Tw1
Tw2
Qw
Δpw
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-
-
-
water temperature at the admission to the heat exchanger
water temperature at the recoil (return) loop of the heat exchanger
heating water flow stream
water pressure drop in the exchanger
Explosion-proof fan

Heater with explosion-proof fan it may be used in facilities with special security requirements such as woodworking shops, paint shops, welding shops, etc.
The heater can be installed inside buildings in the explosion endangered area Z1, in rooms endangered by explosion of gas, vapour, liquids of IIA and IIB explosiveness group with the following temperature classes: T1, T2, and T3.

Control system

Control system - controls are chosen individually according to the explosion risk level in a given facility. They should be manufactured in an explosion-proof version of at least the same level as the fan.

Selection

Selection - in order to maintain the maximum-security level, the controlling automatics and electrical connections should be chosen individually according to the explosion risk level in a given object.

LEO EX water heaters with explosion-proof fan
Manuals 717 KB
Declarations of conformity 298 KB
Brochures 284 KB
AutoCAD drawings 221 KB
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