Munters WM54F Instruction manual

1
Manual for use and maintenance
including assembling instructions
WM54F
Wall Mount Fan
with Damper Door
+CE Declaration of conformity
WM54 Fiberglass Wall Mount Fan
with Damper Door
Air extraction fan
Ag/MIT/UmGB-2483-07/17 Rev 1.0

2
Thank You:
Thank you for purchasing a Munters WM54F Fiberglass with Damper! Munters equipment is designed to be the
highest performing, highest quality equipment you can buy. With the proper installation and maintenance it will
provide many years of service.
Please Note:
To achieve maximum performance and insure long life from your Munters product it is essential that it be installed
and maintained properly. Please read all instructions carefully before beginning installation.
This manual for use and maintenance is an integral part of the apparatus together with the attached technical
documentation and has been produced with reference to Directive 2006/42/EC, paragraph A, Annex II, and
to ErP Directive 2009/125/CE Commission Regulation 327/2011.
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.
Conditions and Limitations:
Products and Systems involved in a warranty claim under the “Warranty Claims and Return Policy” shall have
been properly installed, maintained and operated under competent supervision, according to the instructions
provided by Munters.
Malfunction or failure resulting from misuse, abuse, negligence, alteration, accident or lack of proper installation
or maintenance shall not be considered a defect under the Warranty.
WM54F Fiberglass Wall Mount Fan with Damper
Manual for use and Maintenance

3
Index
Chapters Page
2. Unpacking the Equipment
4
2.1 Parts List
2.2 Fan Dimensions
2.3 Tools for Installation
3. Installation Instructions 9
9
15
18
3.1 Install
3.2 Damper Door Installation
3.3 Cone Installation
3.4 Motor Mounting 26
4. Electrical Wiring 27
4.1 Recommended Wiring 28
29
30
32
32
7.1 Winterizing
7.2 Winter Weather Protection
33
34
5. Operation
6. Maintenance
7. Winterizing
8. Troubleshooting
9. Exploded View and part list
10. Warranty
1. CE Declaration
6
6
8
8
32
37
!! WARNING All the components and spare parts MUST be storaged in dry and clean environment.

4
CE Declaration of conformity
CE Declaration 1.
Munters Italy S.pA.
(complies with Subparagraph A Annex II Directive 2006/42/EC)
with registered officies in Strada Piani, 2 - 18027 Chiusavecchia (IM) - Italy
(Company Registration nr. 00081050080)
declares on its own responsability that the apparatus:
Designation
Model
Year of Manufacture
Fan designed for moving air to control temperature
and humidity in livestock.
WM54F
2017
conforms with the essential safety requirements stated by Apparatus Directive 2006/42/EC
and performance requirements comply with the ErP Directive 2009/125/CE,
with particular reference to the following provisions: UNI EN 953:2009, UNI EN ISO 12100:2010,
UNI EN ISO 12499:2009, UNI EN ISO 13857:2008, CEI EN 60204-1:2006 (CEI 44-5)
UNI EN ISO 5801:2009
Chiusavecchia, 5th July 2017
Marco Scomparin
Legal Representative

5
CE DeclarationChapter 1
1.1 Disclaimer
Munters reserves the right to make alternations to specifications, quantities, dimensions etc. for production or
other reasons, subsequent to publication. The information contained herein has been prepared by qualified
experts within Munters. While we believe the information is accurate and complete, we make no warranty or
representation for any particular purposes. The information is offered in good faith and with the understanding
that any use of the units or accessories in breach of the directions and warnings in this document is at the sole
discretion and risk of the user.
1.2 Introduction
In order to realize the full benefit from this product it is 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 Data for Fan Eco Design Directive
Fan description(*)
Product information requirements* →
(according to ANNEX I -3.2 of regulation)
1 2 3 4optional 6b 6c 78
Overall efficiency η%
Efficiency grade Measurement category
Efficiency category
Target efficiency grade 2015
VSD must be installed with the fan Motor power input at optimum energy efficiency [W]
Flow rate at optimum energy efficiency [m3/h]
Pressure at optimum energy efficiency [Pa]
RPM at optimum energy efficiency
Speific ratio
WM54F 1.5hp 3ph 50Hz OS
56a
39,3 A static 44,9 34,4 no 1310 30562 60,71 510 1
WM54F 2hp 3ph 50Hz OS 39,8 A static 44,4 35,4 no 1852 34755 76,35 566 1
* Fans tested are configured according to COMMISSION REGULATION (EU) No 327/2011 of 30th March 2011 - ANNEX II - 1.5. Efficiency values, according to
Commission Regulation (EU) 327/2011, refers to exhaust fans only.

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2.1 Parts List
Unpacking the Equipment2.
Each WM54F Fan Requires:
1 – 54” Fiberglass Orifice
1 – 54” Propeller
1 – Central Support
1 – Motor
1 – Motor Pulley
1 – Drip Shield
1 – Main Frame Assembly
1 – Plastic Door Assembly
4 – Plastic Cone Sections
1 – Round safety mesh
1 – Flat safety mesh
1 – Motor slide
1 – Tensioner Bracket
4 – Cone Support Brackets
4 – Cone/Strut Mounting Bracket
1 – V-Belt (A61)
1 – Hub with Bearings & Shaft
1 – Central pulley
1 – Tensioner Pulley
1 – Belt Tensioner
1 – Motor Stiffener Bracket
2 – Tension spring
1 – Cable
Bolts and nuts

7
[A]
[B]
[C]
[D]
[E]
[F]
[G]
[H]
[I]
[J]
[K]
[L]
[M]
[N]
[R]
[S]
Unpacking the EquipmentChapter 2
[AA]
[BB]
[CC]
[DD]
[EE]
Bolts and nuts for 1 – WM54F Fan Installation
[A]….12 – Ø8x32 Washer
[B]…. 2 – Ø6.3x19 Self-tapping Screw
[C]…. 4 – M8x25 Hex Screw
[D]…. 4 – Ø8 Ext Toothed Washer
[E]…. 4 – M8 Hex Nut
[F]…. 4 – M6x30 Hex Screw
[G]…. 4 – M6 Hex Nut with Flange
[I]….. 1 – M10x25 Hex Bolt
[J]…. 1 – Spring Washer D10
[K]….. 1 – M25 Hex Nut
[L]…. 1 – Waterproof Distance Piece
[M]…. 1 – Cup Cover Nut
[P]…..12 – Plastic Clip
[R]…. 3 – Cable Clamp
[S]…. 1 – M10x50 Hex Bolt
[AA]….18 – Ø8x30 Hex Screw
[BB]….. 4 – Ø8x45 Hex Screw
[CC]….. 7 – Ø8x65 Hex Screw
[DD]….37 – M8 Hex Nut with Flange
[EE]….. 4 – Ø4.8x13 Self-tapping Screw
[Q]…..1 – Cable
[Q]
[H]…. 4 – Ø8x24 Washer
[N]…. 1 – Spring Washer D8
[O]…. 1 – M8x20 Hex Screw
[O]
[P]

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2.2 FAN DIMENSIONS
Fan Specifications: 50Hz shown
Voltage: 230/400 VAC
Phase: 3
Unpacking the Equipment
Chapter 2
Dimensions:
Size A B C D - Dia. E F Wall Openings
54” 1524 x 1524 1245 185 max 16841435 x 1435
Wall Opening (W.O.)
D - Dia.
F
A
AB
Guard
E
C
2.3 TOOLS REQUIRED FOR INSTALLATION
Pneumatic screwdriver
17mm Spanner
8mm Long Spanner
10mm Long Spanner
13mm Long Spanner
36mm Spanner
Screw Head Adaptor
Small Hammer
10mm Combination Spanner
Screwdriver
17mm Combination Spanner
81 121

9
Installation Instructions 3.
3.1 INSTALL
Step 1
Construct framed opening to correct size according to the Wall Opening listed in chart A below. See Figure 1A
and 1B. When installing exterior sheet metal before fan, leave 50mm of the framing exposed on all sides so the
orifice can mount flush to the frame.
Minimum Spacing
'Z'
Chart A
Wall Opening
(W. x H.)
Fan Dia.
305 recommended; 90 minimum
54” 1435 x 1435
Figure 1B 100x100 Post Construction - Elevation View
Ceiling
Framing
H
(see chart A)
305
W
(see chart A)
See minimum
spacing notes in
Chart A Z
50 x 200 Header boards
100 x 100 or
100 x 150 Posts
50 x 100
Framing
50 x 200 Banner boards
Ceiling
100 x 100 or 100 x 150 Posts
W
(see chart A)
H
(see chart A)
Note:
Damper doors should
be carefully set aside
out of direct sunlight
until needed.
Center To Center
Dimension
1524 Minimum
Figure 1A Frame Construction
W
Top View
W O.C
W x H Wall Opening
Sheet Metal Opening
Stud Wall

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Step 2
Place the Central Support on saw horses or a flat work surface. The large center hole should be pointing
horizontally. Attach the Motor Slide and the Tensioner Bracket to the Central Support using (3) Long Bolts
[CC], (4) Washers [A] and (3) Nuts [DD]. The Motor Slide and the Tensioner Bracket share the middle
hole. See Figure 2A.
Figure 2A
Installation Instructions
Chapter 3
Step 2B
Attach the 3” Tensioner Pulley to the Belt Tensioner using Bolt [S]. Then attach the Belt Tensioner assembly
to the Tensioner Bracket using Bolt [I] and Washer [J]. Finger tighten only at this time. See Figure 2B.
Figure 2B
Central Support
Tensioner Bracket
Washer [A]
Motor Slide
Long Bolts [CC]
Tensioner Pulley
Belt Tensioner
Bolt [S]
Washer [J]
Bolt [I]
Nuts [DD]

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Step 3
Attach Central Pulley to Hub using (4) Bolts [F] and Nuts [G] and tighten to 14 Nm.. See Figure 3.
Central Pulley
Hub
Bolt [F]
Nut [G]
Central Pulley
Nut [G]
Bolt [F]
Hub
Step 4
Rotate the Central Support on the saw horses so the Motor Slide is pointing up. Then slide the Waterproof
Distance Piece [M] over the hub shaft as shown in Figure 4. Attached the Pulley/Hub Assembly to the
Central Support using (1) Hex Nut [K] and tighten to 60 Nm. See Figure 4. Then place the Cup Cover Nut
[M]over the Hex Nut and fasten in place with (1) Tapping Screw [B]. See Figure 4. Set aside the
Support Assembly for use in a later step.
Figure 3
Waterproof Distance Piece [L]
Hex Nut [K]
Tapping screw [B]
Cap Cover [M]
Figure 4
Installation Instructions
Chapter 3
Hub Assembly

12
Step 5
Place Fiberglass Orifice on saw horses with the round orifice pointing up and place (1) Cone/Strut Mounting Bracket in
each corner of the Fiberglass Orifice. See Figure 5.
Fiberglass Orifice
Mounting Bracket
Step 6
The corners of the Fiberglass Orifice with 2 holes are the corners where the Support Assembly attaches. Attach the Support
Assembly using (4) Long Bolts [CC], (6) Washers [A] and (4) Nuts [DD] and in the opposite corners attach the Cone/Strut
Mounting Bracket to the orifice using Short Bolt [AA], Washer [A] and Nut [DD]. See Figure 6
Figure 5
Figure 6
Long Bolt [CC]
Washer [A]
Washer [A]
Nuts [DD]
Drain Hole
Washer [A]
Short Bolt [AA]
Nuts [DD]
Installation Instructions
Chapter 3

13
Step 7
Attach Propeller to Hub Assembly using (4) Bolts [C], Washers [D] and Nuts [E] and tighten to 22 Nm.See
Figure 7.
Figure 7
Propeller
Installation Instructions
Chapter 3
Nut [E]
Slide the Main Frame Assembly onto the Fiberglass Orifice with the pin on the Main Frame opposite the
drain hole. See Figure 8A. Line up the 4 holes in the Main Frame with the holes in the orifice and fasten
using (4) Self-tapping Screws [EE]. See Figure 8B.
Hole in Fiberglass Orifice
Figure 8A Figure 8B
Bolt [C]
Washer [D]
Pin
Main Frame
Fiberglass Orifice
Self-tapping Screw [EE]
3.2 Damper Door Installation
Step 8
Drain Hole

14
Installation Instructions
Chapter 3
Step 9
Attach Drip Shield to bottom of framed opening using (3) proper Screws (Not Provided). See Figure 9A and 9B. If a
100mm wall is used a support board must be installed as shown in Figure 9B. Be sure not to deform Drip Shield when
installing screws.
Figure 9A Figure 9B
Drip Shield
Screw
(Not Provided)
100mm Wall
150mm Wall
Drip plate
Drip plate
Support board
Barn Screw Barn Screw
Step 10
Locate the Drain hole in the Fiberglass Orifice. This is the bottom of the Orifice. Set the bottom edge of the panel on the
Drip Shield ledge and center the panel on the opening. Then secure the Orifice to the wall using (16) proper Screws (Not
Provided). See Figure10A and 10B.
NOTE: the proper type of fixing screw has to be selected depending on the material of the wall of the installation.
Figure 10A Figure 10B
Drain hole
Drip Shield ledge
Orifice Panel
Screws (Not Provided)

15
Installation Instructions
Chapter 3
Step 11A
Carefully remove folded door assembly from box. Open the doors enough to reach the latch pin and pull it down until the end
of the latch pin is flush with the top of the doors. Make sure the Long Hinge Pin does not fall out. See Figure 11A
Figure 11A
Latch Pin

16
Step 11B
Being careful not to let pin fall out, set Doors into Main Frame with the Hinge Pin in the hole at the bottom
plate of the Main Frame and push the top of the Doors into place. See Figure 11B.
Installation Instructions
Chapter 3
Figure 11B
Hinge Pin
Door
Step 11C
Separate the doors and push them into the closed position. Now push Latch Pin up into place, then turn
the short leg of the Latch Pin into place against the door and secure in place using Self-tapping screw [B].
Latch Pin should extend up through the upper plate in the Main Frame. See Figure 11C.
Figure 11C
Latch Pin
Latch Pin Leg
Self-tapping Screw [B]

17
Step 12A
Find the Cable [Q], insert it into the small hole in the upper plate of the Main Frame and pull it through until the
ferrule stops at the plate. See Figure 12A.
Installation Instructions
Chapter 3
Hole in Main frame
Cable [Q]
Step 12B
On the room side of each door drill a 3mm dia. Hole in each door through the center of the middle dimple
shown. See Figure 12B.
Figure 12A
Figure 12B
Drill Dimple

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Step 12C
From the inside attach each of the Tension Springs to the hole in the upper plate of the Main Frame using
the end of the spring with the loop, then stretch the spring and insert the other end of the spring into the hole
drilled in the door in the previous step. See Figure 12C
Figure 12C
Installation Instructions
Chapter 3
Hole in upper plate
Drilled Hole in Damper Door
Tension Spring
Step 13
Place all 4 cone sections on a flat surface with the tabs from one facing the slots of the next. See Figure 13A.
Curl up the tab end of the first cone section and insert the tabs up into the slots in the next cone section, a
mallet may be needed to seat the slots over the tabs completely. See Figure 13B. Repeat this step until all
4 cone sections are connected and laying flat
3.3 Cone Installation
Figure 13A
Figure 13B

19
Installation Instructions
Chapter 3
Step 14A
Fasten each of the joints in the single outer hole using (1) Short Bolt [AA], Washer [A] and Nut [DD], with
the nut on the side with the tabs. At the inner pair of holes of each joint attach (1) Cone Support Bracket
to the inner hole using (1) Bolt [AA], Washer [A] and Nut [DD] with the bolt head on the side with the
tabs. See Figure 14A. Nut [DD]
Short Bolt [AA]
Outer holes
Nut [DD]
Short Bolt [AA]
Inner holes
Figure 14A
Step 14B
Stand the cone sections on end and curl ends around to form cone with the Cone Support Bracket on the outside
and the tabs on the inside. Then insert the remaining tabs into slots so the tabs are inside the cone and fasten
final joint using (1) Short Bolt [AA], Washer [A] and Nut [DD], with the nut on the inside of the cone. At the
inner pair of holes attach (1) Cone Bracket to the inner hole using (1) Short Bolt [AA], Washer [A] and Nut
[DD] with the bolt head on the outside of the cone. See Figure 14B.
Figure 14B
Cone Bracket
Short Bolt [AA]
Short Bolt [AA]
Nut [DD]
Nut [DD]
Cone Support Bracket
Washer [A]
Washer [A]
Washer [A]
Washer [A]

20
Figure 15A
Step 15A
Install cone onto fan by putting the top of the cone over the top of the fan. The hole in the tab of the upper cone
section should slide down over the pin in the Main Frame assembly, then allow the rest of the cone to slide over
the rest of the orifice panel making sure the cone brackets remain on the outside of the cone. See Figure 15A.
Frame Pin
Installation Instructions
Chapter 3
Hole in Tab of Cone Section
Step 15B
Place the end of the Cone Brackets with the single hole over the bolt holding the Cone/Strut Mounting Bracket
to the orifice and secure with Nut [DD]. See Figure 15B. Secure the Cone to the Fan installing Medium Bolt
[BB] and Washer [A] through the remaining hole in the Cone Brackets and fastening with Nut [DD]. A long
screwdriver may be needed to help align the holes through the Cone Bracket, Cone, Damper Frame and
Orifice. See Figure 15B..
Figure 15B
Nut [DD]
Medium Bolt [BB]
Nut [DD]
Washer [A]