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Munters EM50, Manual For Use And Maintenance

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Munters EM50 Manual For Use And Maintenance Download Page 20

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 © Munters AB, 2020

 

7. TECHNICAL DATA 

 

7.1 Dimensions 

 

Dimensions [mm] 

 

fig.20 

A 

B 

C 

D 

E 

F 

G 

H 

1,380 

1,380 

450 

540 

M8 

830 

270 

295 

 

 

 

 

 

 

 

 

7.2 Motor specifications 

Model 

Nominal Power 

Phases 

Speed 

Frequency 

Voltage 

Current 

Rpm 

[W] 

 [Hp] 

[Hz] 

[V]   

[A] 

EM50 

735 

1.0 

3 

single 

60 

230/400 

3.5/2 

1700 

EM50 

1100 

1.5 

3 

single 

60 

230/400 

5.2/3 

1700 

 

 
 

 

 

 

 

 

 

Summary of Contents for EM50

Page 1: ...Manual for use and maintenance EM50 Air extraction fan EM50 ...

Page 2: ...available on https www munters com globalassets terms and policies condizioni_generali_vendita pdf Conditions and Limitations Products and Systems involved in a warranty claim under the General terms and condition of sale shall have been properly installed maintained and operated under competent supervision according to the instructions provided by Munters Malfunction or failure resulting from mis...

Page 3: ...nts 13 5 2 Installing Series EM fans 14 5 3 Connection to the electrical system 15 5 4 Tests and checks before startup 17 6 COMMISSIONING 19 6 1 Control devices 19 6 2 Instructions for machine use 19 7 TECHNICAL DATA 20 7 1 Dimensions 20 7 2 Motor specifications 20 7 3 Technical specifications 21 8 MAINTENANCE 22 8 1 Introduction 22 8 2 Cleaning 22 8 3 Belt tensioning check up 22 8 4 Replacement o...

Page 4: ...s important that it is installed commissioned and operated correctly Before installation or using the fan this manual should be studied carefully It is also recommended that it is kept safely for future reference The manual is intended as a reference for installation commissioning and day to day operation of the Munters fans 1 3 Notes Date of release 2020 Munters cannot guarantee to inform users a...

Page 5: ... of the collective and individual protective measures at their disposal to ensure that normal and special maintenance operations or in any event operations necessary for machine safety are regularly carried out All operators must take care of their own safety and health as well as that of other people in the workplace who may be affected by their actions or omissions in accordance with their perso...

Page 6: ...of tools for dismantling WARNING Do not start the fan with fixed guards removed the guards can only be removed with special tools by specialized and trained personnel and with the system stationary emergency system activated and electricity and hydraulic fluid isolated At the end of maintenance operations the guards which were removed must be replaced correctly Position of guard Type of guard Note...

Page 7: ...om failure to observe ergonomic principles caused by excessive strain i e generic mechanical hazard during the moving and installing stages of the machine fig 4 Electrical hazards System area Description Plates provisions PPE Panels covers and electrical apparatus The safety signs must be fixed in an extremely visible position on the door of the electrical panel and on covers containing electrical...

Page 8: ...llation area and the daily personal exposure of the employees In areas where the overall sound level reaches excessive values personal protective equipment must be used WARNING The fan can be used by people including children with reduced physical sensory or mental capabilities or lack of experience only if adequately supervised or instructed in the safe use of the device and with the knowledge of...

Page 9: ...on request fans can be delivered packed in cardboard boxes fig 6 Once unpacked check the opening of the shutter manually by rotating the central shutter blade Verify that during transportation the plastic shutter bearings did not fall off from their operation condition If yes restore them by mean of a screw driver and re check the opening of the shutter Follow the steps shown in the pictures fig 7...

Page 10: ...is being used when the fan is lifted by crane Fan weights are shown in the technical specification table see section 7 1 3 3 Structure The fans consist of the following components fan housing in Munters Protect coated steel without welding spots fan shutter in Munters Protect coated steel which pivots on UV protected plastic bushes and pins propeller with six blades in stainless or Munters Protect...

Page 11: ...traction or circulation under pressure use contrary to existing regulations incorrect installation differing from instructions given in this manual supply from an electrical network with characteristics different from that specified in the wiring diagram total or partial failure to observe instructions insufficient maintenance use of non original spare parts use of lubricants with characteristics ...

Page 12: ... the applicable directives as attested by the manufacturer with the EC declaration of conformity it is up to the person responsible for the modification to resubmit the machine to the assessment conformity procedures specified in the applicable directives Use in a potentially explosive atmosphere The fan has been designed and built to operate in environments where the presence of a potentially exp...

Page 13: ...s must be provided in the installation area for fan connection to the mains electricity supply WARNING The fans must be installed at a height of not less than 2 7 m from the ground If they are installed at a lower height the fans must be fitted with the optional pyramidal safety mesh by the manufacturer to protect the internal rotor Failure to install the safety mesh releases the manufacturer from...

Page 14: ...8 8 must be used screwing them into the threaded inserts provided for the purpose on the bodywork two per side fig 12 If the fan is installed in a masonry structure an iron outer frame must be constructed not supplied with the fan with a 60 mm L shaped profile at least 5 mm thick with suitably sized clamps When the outer frame is properly built in i e perfectly level and upright insert the fan scr...

Page 15: ...al type depends on the configuration of the electrical system supplying the fan it is the installer s responsibility to make this assessment in accordance with the instructions in standard IEC 60364 fig 15 Red emergency stop button mushroom type provided with mechanical locking and release by turning in compliance with UNI EN ISO 13850 Operating the button must bring about the electromechanical is...

Page 16: ...the fan and the length of the line itself they must make an effective earth connection they must have isolating devices and automatic protection against overload and short circuits Before activating the electrical supply to the machine by turning the isolator switch to position On a series of checks must be made check that the voltage and frequency of the power source correspond to those indicated...

Page 17: ... safe intervention of the main automatic switches and any differential devices linked to them For an appropriate choice of the type of protection for the machine s supply line taking into account whether the distribution system is TT or TN it is advisable to consult an electrical systems designer in order to ensure compliance with the requirements of standard IEC 64 8 or the equivalent provisions ...

Page 18: ... resistance of the ground line to which the equipment are connected has a very low values about 15 20 ohm in order to avoid high currents that can flow through the motor bearings and damage them It is necessary to install the proper line filters to avoid interference and allow proper operation of the equipment The minimum frequency of operation of the engines in the case of absence of a forced ext...

Page 19: ... cause the fan blade to stop rotating but does not cause isolation of the power supply the fan can be started again by pressing the start button In the event that the fan does not need to be used for an extended period of time the following stop procedure must be used operate the stop button operate the emergency stop button open the main isolator switch position 0 on the electrical panel and atta...

Page 20: ...nsions mm fig 20 A B C D E F G H 1 380 1 380 450 540 M8 830 270 295 7 2 Motor specifications Model Nominal Power Phases Speed Frequency Voltage Current Rpm W Hp Hz V A EM50 735 1 0 3 single 60 230 400 3 5 2 1700 EM50 1100 1 5 3 single 60 230 400 5 2 3 1700 ...

Page 21: ...86 Airflow at 0 Pa m3 h cfm 37 000 21 800 42 400 25 000 Airflow at 25 Pa m3 h cfm 32 500 19 200 38 400 22 600 Airflow at 50 Pa m3 h cfm 26 200 15 400 33 800 19 900 Specific performance at 0 Pa m3 h W cfm W 33 9 20 27 0 15 9 Max operating temperature C F 40 104 Max operating pressure Pa 50 Nominal propeller speed rpm 380 435 IEC protective class of electric motor IP55 Electric motor winding insulat...

Page 22: ...an at regular intervals and keep it clean It is advised to perform periodic cleaning of safety mesh guards Dust on the safety mesh guards causes extra power consumption severe dust on the motor can cause overheating and subsequent motor failure WARNING Keep motor body clean Dust deposit on motor body will lead to overheating and failure of bearings and motor itself Do not use water for motor clean...

Page 23: ...devices Therefore if for maintenance reasons the user damages or loses any component this must be definitely ordered from the manufacturer as spare parts and it cannot just be replaced with other components even similar not supplied by the constructor itself In this particular event the manufacturer refuses all responsibility on consequent damages caused to things and people and considers any kind...

Page 24: ...8 4 8 6 Replacement of shutter bearing assembly fig 26 1 open shutter by hand and take away the pin which connects central shutter blade to centrifugal system fig 27 2 remove the side cover plates see n 1 and break steel stop collars see n 9 on central bearing assembly with pliers 3 unthread two tie rod with holes see n 8 and unscrew M6 bolts see n 2 and nuts see n 3 which fix shutter closing spri...

Page 25: ... and pull out the whole centrifugal system through the shutter blades 3 do the reverse procedure to replace the shutter opening device and put back the pin which connects central shutter blade to centrifugal system WARNING There are a number of steps that can greatly reduce or eliminate the white rust formation on the tightly packed components of fans delivered unassembled keep the components dry ...

Page 26: ...26 Munters AB 2020 9 SPARE PART LIST EM50 fig 30 ...

Page 27: ...ER D8 1 8 Ø8X32 WASHER 3 9 HEX SCREW M08X16 2 10 MOTOR PLATE 1 11 M8 25 HEX SCREW 8 12 COVER PLATE 2 13 Ø6 4X8 POP UP RIVET 20 14 RUBBER FOR CABLE 1 15 HOOK FOR SPRING 2 16 THREADED BUSH M8X12 5 2 17 TOP PANEL 1 18 M8 17 5 THREADED BUSH 8 19 PROPELLER 1 20 CENTRIFUGAL SYSTEM 1 21 Ø8X16 WASHER 2 22 M8 55 HEX SCREW 2 23 BRASS PIN 1 24 CENTRAL RIGHT BEARING W SPRING 1 25 RIGHT BEARING 9 26 SHUTTER BL...

Page 28: ...1 36 M6X16 HEX SCREW 2 37 Ø8 EXT THOOTED WASHER 6 38 M8 HEX NUT 6 39 SIDE PANEL 2 40 BOTTOM PANEL 1 41 CONVEYOR 1 42 CENTRAL ALUMINIUM HUB W AXLE 1 43 HEX NUT M6 WITH FLANGE 4 44 M6 30 HEX SCREW 4 45 M25 HEX NUT 1 46 CENTRAL PULLEY 1 47 WATERPROOF DISTANCE PIECE 1 48 CUP COVER NUT 1 49 M8 HEX NUT W FLANGE 4 50 MOTOR AND PULLEY 1 51 M8 20 HEX SCREW 1 52 M10 30 SCREW 4 53 EXT TOOTHED WASHER D10 5X18...

Page 29: ...Munters AB 2020 56 CENTRAL SUPPORT 1 57 SAFETY PROTECTION FOR CENTRAL PULLEY 1 58 Ø6 24 WASHER 1 MOTOR PULLEY PITCH DIAMETER AND HOLE 1 5HP 3 PHASE MULTI SPEED 60HZ 80 24 1HP 3 PHASE MULTI SPEED 60HZ 70 19 ...

Page 30: ...42 2670 info munters co th Israel Phone 972 3 920 6200 info munters co il Italy Phone 39 0183 5211 info munters it Japan Phone 81 3 5970 0021 mkk munters jp Korea Phone 82 2 7618 701 munters munters co kr Mexico Phone 52 818 2625 400 dhinfo munters com Singapore Phone 65 7 446 828 info munters com sg South Africa and Sub Sahara Countries Phone 27 11 997 2000 info munters co za Spain Phone 39 0183 ...

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