Munters WM54K Instruction Manual

WM54K

Wall Mount Fan

Instruction Manual

with Damper Door

6-pack

WM Fiberglass Wall Mount Fan

with Damper Door - 6 pack

Models: WM54xKxCB-6PK

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1© Munters Corporation, September 2019

WM54K Fiberglass Wall Mount Fan with Damper

Instructions for Use and Maintenance

Thank You:

Thank you for purchasing a Munters Wall Mount Fan 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.

Warranty:

For Warranty claims information see the “Warranty Claims and Return Policy” form QM1021 available from the

Munters Corporation office at 1-800-227-2376 or by e-mail at [e-mail].

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 Corporation.

• 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

.

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© Munters Corporation, September 2019

Index

Chapters Page

1. Unpacking the Equipment 4

2. Installation Instructions 7

2.2 Fan Assembly 8

2.4 Cone Installation 17

2.5 Motor Mounting 21

3. Electrical Wiring 26

4. Operation 28

1.1 Parts List 4

1.2 Fan Dimensions 6

1.3 Tools for Installation 6

2.1 Wall Framing 7

2.3 Damper Door Installation 11

3.1 Recommended Wiring 27

5. Maintenance 29

6. Winterizing 31

7. Troubleshooting 32

8. Exploded View and Parts List 33-35

6.1 Winterizing 31

6.2 Winter Weather Protection 31

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Unpacking the Equipment

1.1 Parts List

Each Crate Includes Parts to build 6 fans:

Each WM54K Fan Requires:

1 – Orifice Panel, Fiberglass
1 – Propeller
1 – Tube Strut, Powder Coated
1 – Motor
1 – Drip Shield, AL
1 – Main Frame Assembly, AL
1 – Door Assembly, PL
4 – Cone Sections, PL
1 – Cone Guard
1 – Inlet Guard
½ – Bulk Parts Package (BK1154) For 2 Fans

1.

BK1154 – ½ of Bulk Parts Package needed for 1 – WM54K

1 – Motor Base Bracket, Powder Coated
1 – Belt Tensioner Bracket, Powder Coated
4 – Cone Support Brackets, PC Type, Galvanized
4 – Cone/Strut Mounting Brackets, Galvanized
1 – V-Belt, A-Section
1 – Hub with Bearings and Shaft
1 – Motor Sheave, CI
1 – Prop Sheave, AL
1 – 3” Idler Pulley, A-Section C.I., Blue
1 – Rotary Tensioner Arm, AL
1 - Motor Mount Stiffener Bracket, Galvanized
2 – Tension Springs, 11.0”L./10.8”L., SS
1 – Hardware Package (HP1389)
1 – Coated Cable with ferrule, 100”L.
2 – Wing for Damper Door, HDPE, BLK

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© Munters Corporation, September 2019

HP1389 – Hardware Package for 1 – WM54K

ID Qty. Cat. No. Description

[B] 1 KS1901 6.3mm x 19mm Tapping Screw, ZP
[C] 4 KS1928 M8-1.25 x 25mm Hex Bolt, ZP (HP1382 only)
[D] 4 KW4906 M8 Star Lock Washer, BLK
[E] 4 KN1849 M8-1.25 x 8mm Hex Nut, ZP

[F] 4 KS1926 M6-1.0 x 30mm Hex Bolt, ZP
[G] 4 KW4901 M6 x 12mm Flat Washer, ZP
[H] 4 KN1855 M6-1.0 x 6mm Hex Nut, ZP

[J] 1 KS1931 M10-1.5 x 25mm Hex Bolt, ZP

[K] 1 KW3509 10mm Splitlock Washer, ZP

[L] 1 KN1860 M25-2.0 x 10mm Hex Nut, ZP
[M] 1 KX1130 Shaft Shield for Prop Sheave, AL
[N] 1 KX1208 40mm Cover Cap, Black PL

[R] 8 FH1968 1-Hole Pivoting Shutter Clip, PL
[T] 1 AC0211 & AC0212 Azuma Bolt & Nut, Blue PL
[X] 1 KS1046 M10-1.5 x 50mm Hex bolt, ZP

1 HK1001 Hardware Kit WM54K Fan Assembly, #1 of 2
1 HK1002 Hardware Kit WM54K Fan Assembly, #2 of 2

1 LB2647 Specification Label for WM54K

HK1001 – Hardware Kit for 1 – WM54K Fan

ID Qty. Cat. No. Description

[AA] 18 KS1007

[BB] 4 KS1029
[CC] 7 KS1075
[DD] 37 KN0704

[EE] 10 KW3011

5

⁄16”-18 x 1.25” SRTD Flange Head Bolts, SS

5

⁄16”-18 x 1.75” SRTD Flange Head Bolts, SS

5

⁄16”-18 x 2.75” SRTD Flange Head Bolts, SS

5

⁄16”-18 SRTD Flange Nuts, SS

5

⁄16” x 1¼”O.D. Flat Washer, SS

Unpacking the EquipmentChapter 1

[B]

[C]

[D]

[E]

[F]

[G]

[H]

[J]

[K]

[L]

[M]

HK1002 – Hardware Kit for 1 – WM54K Fan

ID Qty. Cat. No. Description

[FF] 4 KS2250 #10-16 x ½” TEK Screw, SS

[GG] 7 KS1400 #10-12 x

[HH] 1 KW3012 ¹⁄₄” x 1”O.D. Flat Washer, SS

[JJ] 2 AC1381

[KK]

[LL]

2 KX1158 Hole Plug, 0.73”-0.76” Dia., BLK PL
1 KS2463

1

⁄8” Dia. Cable Clamp, ZP

1

⁄4” x 1.5” HEX Lag Screw,ZP

[AA]

[BB]

[CC]

[DD]

[EE]

3

⁄4”, SLTDHX, Seal-Washer Screw, ZP

[FF]

[GG]

[HH]

[JJ]

[KK]

[LL]

[N]

[R]

[T]

[X]

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Unpacking the EquipmentChapter 1

1.2 Fan dimensions

Fan Specifications: 60Hz shown (50Hz available)
Power: 115/230 VAC* or 208-230/460 VAC
Phase: 1 or 3
*Available voltages vary depending on HP

AB

C

Wall Opening (W.O.)

F

E

A

D - Dia.

Guard

Dimensions:

Size A B C* D - Dia. E F Wall Openings

54” 60”W. x 60” H. 49” 6

1

⁄2”66

5

⁄16”3

3

⁄16”4

3

⁄4”56

1

⁄2”W. x 561⁄2”H.

6

1.3 Tools required for installation

10mm [3⁄8”] Socket

13mm [ ½”] Socket

17mm [11⁄16”] Socket or Wrench

27mm [1

36mm Socket or Wrench

3⁄8” Socket

Phillips Screwdriver, #3 Size

5⁄32” Hex Wrench

Wire Cutting Pliers

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*Dimension varies depending on wall construction and motor configuration.

1

⁄16”] Wrench

5

⁄16” Socket or Wrench

1

⁄8” Drill Bit

© Munters Corporation, September 2019

Installation Instructions

2.

2.1 Wall framing

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 2” of the framing

exposed on all sides so the orifice can mount flush to the frame.

Chart A

Fan Dia.

54”

Framing

Wall Opening

(W. x H.)

56½” W. x 56½” H.

Ceiling

See minimum
spacing notes in
Chart A

12” recommended; 3½” minimum

Z

(see chart A)

Figure 1A Frame Construction

Minimum Spacing

'Z'

12"

W

H

Center To Center

Dimension

60” Minimum

Note:

Damper doors should
be carefully set aside
out of direct sunlight
until needed.

Stud Wall

(see chart A)

W x H Wall Opening

Sheet Metal Opening

Top View

2 x 8 Header boards

4 x 4 or
4 x 6 Posts

2 x 4
Framing

2 x 8 Banner boards

Figure 1B 4 x 4 Post Construction - Elevation View

W

(see chart A)

Ceiling

4 x 4 or 4 x 6 Posts

H

(see chart A)

561»2”W.

60”W. O.C.

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Installation InstructionsChapter 2

2.2 Fan assembly

Step 2

Place tube strut on saw horses or a flat work surface. The large center hole should be pointing horizontally.

Attach the Motor Base Bracket and the Belt Tensioner Bracket to the Tube Strut using (3) Long Bolts [CC],
(2) Washers [EE] and (3) Nuts [DD]. The Motor Bracket and the Tensioner Bracket share the middle hole.

See Figure 2A.

Tube Strut

Motor Base Bracket

Long Bolts [CC]

Washer [EE]

Nuts [DD]

Tensioner Bracket

Figure 2A

Step 2B

Attach the 3” Idler Pulley to the Tensioner Arm using Bolt [X]. Then attach the Tensioner Arm assembly to the

Tensioner Bracket using Bolt [J] and Splitlock Washer [K]. Finger tighten only at this time.

See Figure 2B.

Next attach the Specification Label to the Tube Strut as shown, and then mark the box for the appropriate
model fan.

Bolt [J]

Washer [K]

Label

Tensioner Arm

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Bolt [X]

Idler Pulley

Figure 2B

© Munters Corporation, September 2019

Step 3

Attach Prop Sheave to Hub using (4) Bolt [F], Washer [G] and Nut [H]. See Figure 3.

Prop Sheave

Hub

Washer [G]

Bolt [F]

Bolt [F]

Installation InstructionsChapter 2

Washer [G]

Nut [H]

Prop Sheave

Figure 3

Hub

Step 4

Rotate Tube Strut on saw horses so Motor Bracket is pointing up. Slide Shaft Shield [M] over hub shaft

as shown in Figure 4. Attach Sheave/Hub Assembly to Tube Strut using (1) Hex Nut [L] and tighten to
52 ft-lbs [70 N-m] torque. See Figure 4. Place Plastic Cover Cap [N] over Hex Nut and fasten in place
with (1) Tapping Screw [B]. See Figure 4. Set aside the Strut Assembly for use in a later step.

Tapping Screw [B]

Cap Cover [N]

Hex Nut [L]

Shaft Shield [M]

Hub Assembly

Figure 4

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Installation InstructionsChapter 2

Step 5

Place Orifice Panel on saw horses with the round orifice pointing up and place (1) Cone/Strut Mounting

Bracket in each corner of the Orifice Panel. See Figure 5.

Orifice Panel

Mounting Bracket

Figure 5

Step 6

Corners of Orifice Panel with 2 holes are corners where Strut Assembly attaches. Secure Strut Assembly using

(4) Long Bolts [CC], (6) Washers [EE] and (4) Nuts [DD]. In the opposite corners attach Cone/Strut Mounting
Bracket to the orifice using (1) Short Bolt [AA], Washer [EE] and Nut [DD]. See Figure 6.

Nuts [DD]

Washer [EE]

Drain Hole

Washer [EE]

Long Bolt [CC]

Nuts [DD]

Washer [EE]

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Short Bolt [AA]

Figure 6

© Munters Corporation, September 2019

Installation InstructionsChapter 2

Step 7

Attach Propeller to Hub Assembly using (4) Bolts [C], Washers [D] and Nuts [E]. Tighten bolts to 180 in-lbs.

of torque. See Figure 7.

Bolt [C]

Washer [D]

Propeller

Nut [E]

Figure 7

WM54K Shown

2.3 Damper Door Installation

Step 8

Slide Main Frame Assembly onto Orifice Panel with pin on Main Frame opposite the drain holes.
See Figure 8A. Line up 4 holes in Main Frame with holes in the Orifice and fasten using (4) TEK Screws [FF].

See Figure 8B.

Main Frame

Pin

Orifice Panel

Hole in orifice panel

TEK Screw [FF]

Drain Hole

Figure 8A Figure 8B

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