GENERAL CHARACTERISTICS Fan heaters LEO EX Heating capacity [kW](1) Air flow [m³/h](2) Weight [kg] Casing Colour range of heating power specified with the parameters: min. - 1st speed of the fan, heating medium temperature 40 / 30oC, air temperature at the inlet to the device 20oC; max. - V gear of the fan, heating medium temperature 120 / 90oC, air temperature at the inlet to the device 0oC (2) capacity control using the TR 3x400 5-speed speed controller (1) APPLICATION Fan heaters equipped with anti-explosion fan and may be installed in Z-2 explosion-risk zones, in rooms at risk of explosion...

CONSTRUCTION FAN LEO EX devices are equipped with an ATEX certified fan, which enables operation in hazardous areas requiring explosion proof fans. NOZZLE The fan is placed in a specially shaped nozzle, with reduced air flow resistance, which results in quieter operation of the device. AIR LOUVRES When installing the heater horizontally under the ceiling, it is possible to direct the air in two directions to spread the warm air over a larger area. INSTALLATION Dedicated mounting brackets enable both wall and ceiling mounting.

LEO EX For CAD drawings, Revit files and documentation for all avaliable versions of ELiS visit www.flowair.com TECHNICAL DATA Fan heater LEO EX Nominal heat power (70/50/16oC) [kW] IP/Insulation class Max. acoustic pressure level [dB(A)] Max. acoustic power level [dB(A)](4) Horizontal isothermal range [m] Vertical non-isothermal range [m](6) Max. heating water temperature [ C] Weight of unit filled with water [kg] efficiency control using the TR 3x400 5-speed controller range of heat powers specified at the parameters: min. - I fan speed, heating medium temperature 40 / 30oC, air temperature...

Vertical range of non-isothermal stream at velocity boundary equal to 0,5 m/s. RANGES HORIZONTAL RANGE OF AIR STREAM – isothermal Horizontal range of isothermal stream at velocity boundary equal to 0,5 m/s. VERTICAL RANGE OF AIR STREAM – non-isothermal

INSTALLATION AND VARIOUS MOUNTING POSSIBILITIES installation under the ceiling wall mounted When device is mounted under the ceiling please note the proper non-isothermal air stream range. EX brackets Brackets enable easy and quick installation Of ceiling or wall mounted devices.

REGULATION The control is selected individually depending on the degree of explosion hazard in a given facility. The controls shall also be explosion-proof, with a degree of protection at least the same as that of the fan. Fan motor needs special external protection systems, e.g. U-EK 230E or similar. There are 2 versions of automation systems: EX LITE and EX PLUS. START- STOP rotary switch phase asymmetry, sequence, failure protection overcurrent and short - circuit motor protection thermistor motor protection relay (ATEX) optional autotransformer regulator remote start signal via potencial...

V – air flow PT – heating capacity Tp1 – inlet air temperature Tp2 – outlet air temperature Tw1 – inlet water temperature Tw2 – outlet water temperature Qw – water flow rate in heat exchanger Δpw – water pressure drop in heat exchanger HEAT OUTPUT CALCULATOR In order to select the device with other parameters

V – air flow PT – heating capacity Tp1 – inlet air temperature Tp2 – outlet air temperature Tw1 – inlet water temperature Tw2 – outlet water temperature Qw – water flow rate in heat exchanger Δpw – water pressure drop in heat exchanger HEAT OUTPUT CALCULATOR In order to select the device with other parameters

ul. Chwaszczyńska 135 81-571 Gdynia Tel. +48 58 627 57 20 for inquieries: [email protected] www.flowair.com