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Exhaust Fan EM 36

EM 36EM36 is the ideal exhaust fan whenever high airflow capacity is required. The unique propeller design is self-cleaning and allows the highest efficiency to be reached.

The square fan housing and air conveyor (venturi) are made of a strong galvanised sheet-steel. The 6-blade propeller is statically and dynamic balanced for low noise and low vibration. The propeller is available in stainless steel, galvanised steel and pre-coated and galvanised steel.

To improve aerodynamic efficiency, the fan has been developed in Munters euroemme's R&D lab. The test chamber has been built according to ANSI / AMCA 210-85 Figure 15 specifications. Construction details and airtightness have been verified by personnel of the BESS Lab at the Agricultural Engineering Department, University of Illinois - USA.

Propeller and shutter

Principle of the ClimateThe propeller is attached to a large v-belt pulley in which is embedded a double ball bearing protected against water. The belt transmission ensures low propeller rpm, which ensures high efficiency and low energy consumption as well as low noise. The shutter is made of galvanised steel for all models, which is stronger than aluminium and plastic. The fan shutter is tightly closed when the fan is not working preventing any air leakage through the fan.

The patented centrifugal system hinders the shutter from being closed by air pressure, keeping the efficiency of the fan at a peak at all times by keeping the shutter fully and firmly opened. The shutter does not have to be cleaned regularly as dust does not affect its opening and closing movement. All the plastic parts are made of acetalic plastic with UV protection.

Equipment

  • Fan housing and venturi made of strong galvanised sheet-steel.
  • Shutters are made of pressed galvanised steel in order to ensure highest strength.
  • Each motor is individually tested for 100% quality control.
  • Central hub and v-belt pulley are made from die-cast aluminium.
  • Propeller is statically and dynamically balanced.
  • Shutter bearings are maintenance free.
  • Patented centrifugal system permits a fully and firm opening of the shutter.
  • Shutter is opened by rotating weights placed over centrifugal system arms.
  • Shutter opening is not affected by the weight of dust deposited on shutter blades.
  • A powerful couple of springs keep the shutters firmly closed when the fan is not operating.
  • Every fan is individually checked for quality.

EM 36
Curves refer to EM36 3Ph 50 Hz single speed motor. Fan tested with shutter and wire mesh.

Order information

EM36-X-X-X e.g., EM36-b-2-wp-wm

  • b : Code for electric motor according to above table.
  • 2 : Code for the type of propeller blades.
    1. Galvanised propeller blades.
    2. Precoated propeller blades.
    3. Stainless steel propeller blades.
  • wp-wm : Options codes
    • wp: Fan equipped with plastic CE protection for belt and pulleys (on mesh side, standard in Europe)
    • np: Fan delivered without plastic CE protection for belt and pulleys (on mesh side, standard outside Europe)
    • wm: Fan delivered with pyramidal shape mesh for CE protection on shutter side.
    • nm: Fan delivered without pyramidal shape mesh for CE protection on shutter side (standard)

Motor Specifications

EM 36
Code
Nominal power Type
phases
Speed Frequency
[hz]
Voltage
[V]
Current
[A]
rpm
[w] [hp]
a 370 0.5 1 single 50 230 3 1,380
b 370 0.5 1 single 50 230 3 1,380
c 370 0.5 1 single 60 220 - 240 3.3 1,700
d 370 0.5 3 single 50 230 / 400 2.3 / 1.3 1,400
e 370 0.5 3 single 60 230 / 400 2.3 / 1.3 1,700
f 370 0.5 3 multi* 50 230 / 400 2.6 / 1.5 1,380
g 370 0.5 3 multi* 60 230 / 400 2.6 / 1.5 1,650
h 550 0.75 1 single 50 230 4 1,400
i 550 0.75 1 multi* 50 230 4 1,400
k 550 0.75 1 single 60 220 - 240 4.4 1,700
l 550 0.75 3 single 50 230 / 400 2.8 / 1.6 1,400
m 550 0.75 3 single 60 230 / 400 2.8 / 1.6 1,700
n 550 0.75 3 multi* 50 230 / 400 3.2 / 1.8 1,380
o 550 0.75 3 multi* 60 230 / 400 3.2 / 1.8 1,650
p 735 1.0 1 single 50 230 5 1,380
q 735 1.0 1 multi* 50 230 5 1,380
r 735 1.0 1 single 60 220 - 240 5.7 1,700
s 735 1.0 3 single 50 230 - 400 3.5 / 2 1,400
t 735 1.0 3 single 60 230 - 400 3.5 / 2 1,700
u 880 1.2 3 multi* 50 230 - 400 4.3 / 2.5 1,380
v 880 1.2 3 multi* 60 230 - 400 4.3 / 2.5 1,600
* Multi speed motors must be regulated with auto-transformer which is not supplied.

Technical Specifications

  05 hp 0.75 hp 1.0 hp
Weight of fully equiped fan1 [kg] 64 65 67
Nominal propeller speed [rmp] 460 510 580
Airflow at 0 Pa1 [m3/h] [cfm] 17,900 [10,535] 19,880 [11,700] 22,250 [13,095]
Airflow at 20 Pa1 [m3/h] [cfm] 15,700 [9,240] 17,930 [10,550] 20,750 [12,210]
Specific performance at 0 Pa1 [m3/wh] [cfm/w] 25.1     [14.8] 22.3     [13.1] 18.5     [10.9]
 
Propeller diameter [mm] [inch] 916 [36]
Number of blades   6
Number of shutter blades   8
Max. operating temperature [°C] [°F] 50 [122]
IEC protective class of electric motor   IP55
Electric motor winding insulation grade   F
1 All values refer to 3 phases 50 Hz single speed motor.
N.B Airflow data are measured at standard condition (20 °C, 1013 hPa).

EM 36 is developed and produced by Munters euroemme S.p.A., Italy.



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