Munters EM50 Assembly Manual

Assembly manual

EM50

Spare part list + Assembling guideline

EM50

Air extraction fan

Ag/MIT/IGB-2208-09/14 rev 1.6

© Munters AB, 2018

EM50

Assembly manual

Original instructions

Revision 1.6

This

document is destined for the user of the apparatus: it may not be reproduced in whole or in part, committed
to computer memory as a file or delivered to third parties without the prior authorisation of the assembler of the
system.
Munters Italy S.p.A. reserves the right to effect modifications to the apparatus in accordance with technical and
legal developments and to make alterations to specifications, quantities, etc.,for production or other reasons,
subsequent to publication.

2

© Munters AB, 2018

Index

!

chapter page

1. SPARE PART LIST 4

EM50 exploded view 4
Motor exploded view 11

2. ASSEMBLING TOOLS 13

3. ASSEMBLING GUIDELINE 15

Housing assembling 15

Centrifugal system and pulley to propeller assembling 17
Shutter blades assembling 19
Safety meshes assembling 21

CE kit assembling 22

Pyramidal shape mesh assembling 23

WARNING

All the components and spare parts MUST be storaged in dry and clean
environment.

3

© Munters AB, 2018

Spare part list

1.

4

© Munters AB, 2018

Spare part listChapter1

Ref. Picture Description Q.ty

GROUP1: BODY

1.1 SAFETY MESHES 670X1,338 23X89 GALV. 2

1.2 CENTRAL SUPPORT GALV. 1

1.3 COVER PLATE GALV. 2

1.4 SIDE PANEL 515X1,367X0.8 GALV 2

1.5 TOP PANEL 549X1,457X1 GALV. 1

1.6 VENTURI 1,425X1,425 GALV. 1

1.7 BOTTOM PANEL 549X1,457X1 GALV. 1

1.8 PVC TIE-ROD 2

5

© Munters AB, 2018

Spare part listChapter1

1.9 RIGHT SIDE SHUTTER BEARING ASSEMBLY 9

1.10 RIGHT SIDE SHUTTER BEARING ASSEMBLY WITH SPRING 1

1.11 SHUTTER BLADE GALV. 9

1.12 CENTRAL SHUTTER BLADE GALV. 1

1.13 LEFT SIDE SHUTTER BEARING ASSEMBLY 9

1.14 LEFT SIDE SHUTTER BEARING ASSEMBLY WITH SPRING 1

1.15 EUROEMME STICKER 24.6X180 2

1.16 WARNING STICKER A-1997 35X210 1

1.17 WARNING STICKER B-1997 70X105 1

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© Munters AB, 2018

Spare part listChapter1

1.18 PRODUCT LABEL G-1998 95X115 1

1.19 NO HIGH PRESSURE STICKER 42X118 2

GROUP2: PULLEY

2.1 CENTRAL PULLEY 1

2.2 HUB 1

GROUP3: BELT

3.1 V-BELT 88-2270 1

GROUP4: MOTOR

SEE MOTOR TABLE (p.10)

GROUP5: PROPELLER

5.1 PROPELLER STAINLESS STEEL/PRECOATED/GALV. 1

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© Munters AB, 2018

Spare part listChapter1

GROUP6: CENTRIFUGAL SYSTEM

6.1 COMPLETE CENTRIFUGAL SYSTEM SINGLE/MULTI SPEED 1

GROUP7: BOLTS&NUTS

7.1

7.2

7.3

7.4

POP RIVET D6.4X8

Purpose: for housing and Venturi assembling

THREADED BUSH D8X17.5 M8 LONG

Purpose: to insert on the housing

THREADED BUSH D8X12.5 M8 SHORT

Purpose: to insert on the top panel

HEXAGON SCREW M8X16 UNI 5739
PLAIN WASHER D8X32 DIN 126

Purpose: to fix motor to the top panel

HEXAGON SOCKET SCREW M10X30 UNI 5923
OVAL PLATE 170X40X8
TOOTHED WASHER D10.5X18 UNI 5589
TICK HEXAGON NUT M10X10 UNI 5587

Purpose: to fix the propeller central support to the housing

20

8

2

2
2

4
2
4
4

HEXAGON SCREW M6X30 UNI 5739

7.5

7.6

7.7

8

FLANGED HEX NUT M6 DIN 6923

Purpose: to fix the central pulley to the hub

HEXAGON SCREW M8X25 UNI 5739
TOOTHED WASHER D8.4X15 UNI 6798
TICK HEXAGON NUT M8X8 UNI 5587

Purpose: to fix the propeller to the hub

HEXAGON SOCKET HEAD CAP SCREW M8X55 UNI 5931
TOOTHED WASHER D8.4X15 UNI 6798
PLAIN WASHER D8.4X17 UNI 659
TICK HEXAGON NUT M8X8 UNI 5587

Purpose: to fix the centfugal system to the propeller

4
4

4
4
4

2
2
2
2

© Munters AB, 2018

Spare part listChapter1

7.8

7.9

7.10

7.11

WATERPROOF DISTANCE PIECE

Purpose: to distance the hub from the propeller central support.

HEXAGON SCREW M6X16 UNI 5739
CENTRAL SHUTTER BLADE FORK
HEXAGON NUT M6X5 UNI 5588

Purpose: to fix the central shutter blade fork to the central shutter
blade.

THIN HEXAGON NUT M25X10 UNI 5589
CUP COVER NUT

Purpose: to fix the hub to the propeller central support.

SPRING HOOK

Purpose: to fix the two springs of central shutter blade to the side
panel.

1

2
1
2

1
1

2

7.12

7.13

7.14

7.1

KNURLED AXLE D6X33

Purpose: to fix the tie-rod to the central shutter blade fork.

SELF TAPPING SCREW 6.3X19
PLAIN WASHER D6.7X24 UNI 659

Purpose: for cover plate and wire meshes assembling.

PLASTIC CLIP MESHES

Purpose: to fix the safety meshes to the housing.

RUBBER GROMMET

5

Purpose: to protect the electric cable on the side panel in
correspondence with the motor slot.

1

15

1

4

1

9

© Munters AB, 2018

Spare part listChapter1

GROUP8: OPTIONAL KITS

PLASTIC CE PROTECTION KIT

8.1 PLASTIC SAFETY PROTECTION FOR CENTRAL PULLEY 1

8.2 PLASTIC SAFETY PROTECTION FOR BELT 2

8.3

8.4 SELF TAPPING HEX SCREW D6.3X19 1

8.5 PYRAMIDAL SAFETY MESH 1

8.6

PLASTIC SAFETY PROTECTION FOR MOTOR PULLEY AND FIXING
CLIP

PYRAMIDAL SAFETY MESH KIT

SELF TAPPING HEX SCREW D6.3X19
METAL CLIPS

Purpose: to fix the pyramidal safety mesh to the housing.

1

6
6

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Spare part listChapter1

GROUP4: MOTOR

1

2

5

4

6

3

MOTOR PULLEY PITCH DIAMETER AND HOLE

3-PHASE - ONE SPEED 3-PHASE - MULTISPEED SINGLE PHASE

50 HZ 60 HZ 50 HZ 60 HZ 50 HZ 60 HZ

HP 1.5 100/24 80/24 95/24 80/24 95/24 80/24

HP 1.0 85/19 70/19 80/19 65/19 80/19 65/19

BOLTS&SCREWS

Ref. Description Q.ty

Models: 1.0Hp - 50/60Hz

1 HEXAGON SCREW M8X20 UNI 5739 4

2 MOTOR PLATE 80X256X3 GALV. 4

3 TICK HEXAGON NUT M8X8 UNI 5587 4

4 PLAIN WASHER D8X32 DIN 126 1

5 SPRING WASHER D8,4X14,4 UNI1751 1

6 HEXAGON SCREW M8X20 UNI 5739 1

Models: 1.5Hp - 50/60Hz

1 HEXAGON SCREW M8X20 UNI 5739 4

2 MOTOR PLATE 80X256X3 GALV. 4

3 TICK HEXAGON NUT M8X8 UNI 5587 4

4 PLAIN WASHER D6.7X24 UNI 659 1

5 SPRING WASHER D6,4X11,4 UNI1751 1

6 HEXAGON SCREW M6X16 UNI 5739 1

11

© Munters AB, 2018

Spare part listChapter1

HOLES FOR MOTOR

= Holes for 1.0hp motors

= Holes for 1.5hp motors

12

© Munters AB, 2018

Assembling tools

2.

Ref. Picture Description Q.ty

1 RIVETING MACHINE RAC171 1

2 INSERTING MACHINE KJ 45 1

3 PNEUMATIC SCREWDRIVER 1

4 17mm SPANNER 1

5 10mm LONG SPANNER 1

6 13mm LONG SPANNER 1

7 6mm LONG ALLEN SPANNER 1

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Assembling toolsChapter2

8 36mm SPANNER 1

9 PHILLIPS SCREW HEAD ADAPTOR 1

10 13mm SPANNER 1

11 SMALL HAMMER 1

12 10mm SPANNER 2

13 SCREWDRIVER 1

14 RATCHET DRIVE EXTENSION 1

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© Munters AB, 2018

Assembling guidelines

HOUSING ASSEMBLING

3.

Take the bottom panel (ref.1.7/Body), the side panels
(ref.1.4/Body) and place these taking care that slot

for the plastic bearing is downward.

Before fixing the bottom and the side panels make
sure that these pieces are in the right position as in
the picture.

Join bottom panel to side panels and fix qty. 4 pop
rivets (ref.7.1/Bolts&nuts) for each edge by using
riveting machine (ref.1/Assembling Tools).

Insert Venturi (ref.1.6/Body) into the housing on the
right side as in the picture.

Fix Venturi to bottom panel and then to side panels
with qty.1 pop rivets for side.

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Assembling guidelinesChapter3

Place the top panel (ref.1.5/Body) with motor support
in correspondence with motor slot on the Venturi. Then
fix it to side panels with qty. 4 pop rivets for side and
to Venturi with qty.1 pop rivet.

Place the qty.2 short threaded bushes (ref.7.2/
Bolts&nuts) on the top panel by using inserting
machine (ref.2/Assembling Tools).

Place long threaded bushes (ref.7.2/Bolts&nuts) in
correspondence of proper holes around the housing.
Qty. 2 long threaded bushes for each panel.
Make sure that Venturi and each panel are joined by
the long threaded bushes.

Place the rubber grommet (ref.7.15/Bolts&nuts)
for electric cable protection on the side panel in
correspondence with the motor slot.

The propeller central support (ref.1.2/Body) shall be
fixed to housing by means of qty. 4 screws, qty. 2
oval plates, qty. 4 toothed washers and qty. 4 nuts
(ref.7.4/Bolts&nuts).

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Place the oval plates between propeller central
support and panels.

© Munters AB, 2018

Assembling guidelinesChapter3

Place the oval plate over support frame and then start
to screw the nuts.

Tighten the nuts with pneumatic screwdriver (ref.3/
Assembling tools) in order to fix the propeller central
support to the top and bottom panels.

Insert the electric motor (ref.4/Motor) into its slot
taking care to fix it over proper track on the top side.

Fix motor slide to top panel by means qty. 2 screws
and qty. 2 washers (ref.7.3/Bolts&nuts). Tighten
screws by using 13mm spanner (ref.10/Assembling
tools).

CENTRIFUGAL SYSTEM AND PULLEY TO PROPELLER ASSEMBLING

Place the pulley on the hub and insert the screws
(ref.7.5/Bolts&nuts).

Turn the pulley plus the hub upside down, insert
and fix the flanged nuts (ref.7.5/Bolts&nuts) over
the screws.

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© Munters AB, 2018

Assembling guidelinesChapter3

Tighten the nuts by using pneumatic screwdriver (ref.3/
Assembling tools).

Place the waterproof distance piece (ref.7.8/
Bolts&nuts) on the axle and then place the axle on a
support. Place the V-belt (ref.3.1/Belts) on the central
pulley.

Place the propeller (ref.5.1/Propeller) on the central
pulley assembly.

Fix the screws, washers and nuts (ref.7.6/Bolts&nuts)
in order to fix the propeller.

Tighten the nuts by using pneumatic screwdriver (ref.3/
Assembling tools).

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Place bolts (ref.7.7/Bolts&nuts) on the centrifugal
system (ref.6.1/Centrifugal system) and then place it
on the propeller.

© Munters AB, 2018

Assembling guidelinesChapter3

Tighten screws, washers and nuts (ref.7.7/Bolts&nuts)
in order to fix the centrifugal system to the propeller by
using pneumatic screwdriver (ref.3/Assembling tools).

Place the complete assembly you have obtained on
the fan, inserting the axle throught the central support
hole.

Place the nut (ref.7.10/Bolts&nuts) on the axle and
then tighten it by mean of pneumatic screwdriver
(ref.3/Assembling tools).

Put cap cover nut (ref.7.10/Bolts&nuts) over the nut
(only for fan without CE kit ).

Place V-belt on the pulley and then rotate the propeller
clock-wise in order to tighten the V-belt on the pulley.

Check tensioning: right tensioning is obtained when
maximum deflexion on one side only (half-way from
motor and central pulley) is about 15 mm.

SHUTTER BLADES ASSEMBLING

Insert plastic bearings (ref.1.9-1.13/Body) on shutter
blades (ref.1.11/Body) and plastic bearings with
spring (ref.1.10-1.14/Body) on central shutter blade
(ref.1.12/Body). Both plastic bearings are marked
with SX for left side and with DX for right side.

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© Munters AB, 2018

Assembling guidelinesChapter3

Fix the plastic fork with qty. 2 screws and qty. 2 nuts
(ref.7.9/Bolts&nuts) on the central shutter blade. Fit
central shutter blade on the central slot on the housing.

Insert knurled axle (ref.7.12/Bolts&nuts) by the smooth
side on the plastic fork, then take plastic shutter rod on
the centrifugal system and fix them together by using a
small hammer (ref.11/Assembling tools).

Insert the spring hooks (ref.7.11/Bolts&nuts) in the
holes of the side panels (ref.1.4/Body).

Insert the free terminal of the spring on the hook.
Repeat this operation for the other side.

Insert all the shutter blades on the fan housing and
then place the fan horizontally.

20

Place the pvc tie-rod (ref.1.8/Body) on plastic bearing
pivots.

© Munters AB, 2018

Assembling guidelinesChapter3

By means of a screwdriver (ref.13/Assembling tools)
insert cover plate (ref.1.3/Body) over the fan
housing.

Fix the cover plate on each side by using q.ty 2
Ø6,3×19 screws (ref.7.13/Bolts&nuts) with the
pneumatic screwdriver (ref.3/Assembling tools).

SAFETY MESHES ASSEMBLING

Turn the fan up side down and insert the electric cable
into the proper hole placed on the side panel.

Put the qty. 2 safety meshes guard (ref.1.1/Body) on
the inlet side of the fan.

Fix the qty. 6 screws (ref.7.13/Bolts&nuts) on the fan
side (qty. 3 for each side are required).

Fix the screws (ref.7.13/Bolts&nuts) with the plastic
clips (ref.7.14/Bolts&nuts) in correspondence of the
propeller central support on the top panel and the
bottom panel.

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© Munters AB, 2018

Assembling guidelinesChapter3

Fix the screw with the washer (ref.7.13/Bolts&nuts)
into the central pulley axle. Fix all the components by
using the pneumatic screwdriver (ref.3/Assembling
tools).

CE KIT ASSEMBLING

Before assembling the safety meshes complete the CE
kit. Join the plastic safety protection for central pulley
(ref.8.1/Optional kits) with plastic safety protection
for the V-belt (ref.8.2/Optional kits).

Place the plastic safety protection for the motor pulley
(ref.8.3/Optional kits) in the motor corner (make sure
that the plastic square pins are inserted in the proper
housing holes). Join the plastic safety protection for the
motor pulley.

Put the assembled CE plastic kit protection (make sure
that the groove of the plastic safety protection for the
V-belt are centered along the V-belt). Follow the safety
mesh guard assembling procedures and then fix the
complete assembled you have obtained by mean of
qty.1 screw (ref.8.4/Optional kits).

PYRAMIDAL SHAPE MESH ASSEMBLING

Put the pyramidal shape mesh (ref.8.5/Optional kits)
on the fan as in the picture. The rectangular holes must
be positioned horizontally.

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© Munters AB, 2018

Assembling guidelinesChapter3

Fix it to the bottom and top panels by means of qty. 6
metal clips and qty. 6 screws (ref.8.6/Optional kits).
The metal clips must be fixed in the position as in the
picture.

Fix it by using a pneumatic screwdriver (ref.3/
Assembling tools).

23

Munters EM50 extraction fan is developed and produced by Munters Italy S.p.A., Italy

www.munters.com

Australia Phone [phone], [e-mail], Brazil Phone [phone], [e-mail], Canada Phone [phone]

7070, [e-mail], China Phone [phone], [e-mail], Denmark Phone [phone], [e-mail], Germany
Phone [phone] - 93 92-0, India Phone [phone], [e-mail], Indonesia Phone [phone], [e-mail], Israel Phone

[phone], [e-mail], Italy Phone [phone], [e-mail], Japan Phone [phone], [e-mail], Korea Phone +82 2
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Afrca and Sub-Sahara Countries Phone [phone], [e-mail], Spain Phone [phone], [e-mail], Sweden Phone [phone]

300, [e-mail], Thailand Phone [phone], [e-mail], Turkey Phone [phone], [e-mail], USA Phone +1 517
676 7070, [e-mail], Export & Other countries Phone [phone], [e-mail]

Munters reserves the right to make alterations to specifications, quantities, etc., for production or other reasons, subsequent to publication.

© Munters AB, 2018

Ag/MIT/IGB-2208-09/14 rev 1.6