Munters WF50 Series Manuale utente

1© Munters Corporation, December 2019 QM1079r12

Instruction Manual

WF50 Fan with Dragonﬂy Damper Door

Models: WF501VxCD • WF5015VxCD

WF50 Fan

with Dragonﬂy

Damper Door

Galvanized

2QM1079r12

WF50 Fan with Dragonﬂy Damper Door

Instructions for Use and Maintenance

Thank You:

Thank you for purchasing a Munters WF50 Dragonfly Fan. 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 [email protected].

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.

3© Munters Corporation, December 2019 QM1079r12

Index

Chapters Page

1. Unpacking the Equipment 4

1.1 Parts List 4

1.2 Fan Dimensions 5

2. Installation Instructions 6

2.1 Installation 6

3. Electrical Wiring 8

3.1 Wiring 8

3.2 Recommended Wire Routing 9

4. Operation 10

5. Maintenance 11-12

6. Winterizing 13

6.1 Winterizing 13

6.2 Winter Weather Protection 13

7. Troubleshooting 14

8. Exploded View and Parts List 16-17

4QM1079r12

1.1 Parts List

Unpacking the Equipment 1.

[A]

[B]

[C]

[D]

[F]

[J]

[O]

[P]

Each Fan includes:

1 – 50” Belt Drive Fan

1 – Dragonﬂy Door Assembly

4 – Cone Sections (2 side, 2 top/bottom

1 – Cone Guard

1 – Inlet Guard

1 – Hardware Package (HP1119):

HP1119 – for WF50 Dragonﬂy Fans

ID Qty. Cat. No. Description

[A] 12 KS2463 1⁄4” x 1.5” Hex Lag Screw, ZP

[B] 24 KS1153 1⁄4”-20 x ¹⁄₂” SRTD Flange Head Bolt, ZP

[C] 14 KS1151 1⁄4”-20 x ³⁄₄” SRTD Flange Head Bolt, ZP

[D] 8 KR1060 1⁄8”D x 1⁄16 -1⁄8” Grip Pop Rivet, SS

[F] 38 KN0730 1⁄4”-20 SRTD Flange Nut, ZP

[G] 12 KX1256 .32"IDx.75"ODx1"L. Spacer, Black, NY

[J] 8 KS2260 1⁄4”-20 x ³⁄₄” SRTDHXWSHR TEK Screw, ZP

[L] 2 FA1730 Tall Wing Brackets, GZ

[M] 2 FA1732 Short Wing Brackets, GZ

[N] 2 FA1733 Dragonfly Door Wings, PL

[O] 4 KX1043 5⁄16” Push-in Fasteners, NY

[P] 2 KX1470 Retainer Spring, SS

Before beginning installation, check the overall condition of the equipment. Remove packing materials, and examine all

components for signs of shipping damage. Any shipping damage is the customer’s responsibility and should be reported

immediately to your freight carrier. Fan is shipped complete with all accessories.

Not to Scale

5© Munters Corporation, December 2019 QM1079r12

1.2 Fan Dimensions

Unpacking the EquipmentChapter 1

FRONT VIEWSIDE VIEW

D - Cone Width x Cone Height

Shutter

A - Mounting Flange

Fan Speciﬁcations: (50Hz available)

Hertz: 60 60

Voltage: 120/240VAC or 208-240/480VAC

Phase: 1 or 3

NOTE: Crate may contain Fan Accessories.

FAN

DIA. A B C

Cone Width x Cone Height

Above W.O.

Below W.O. G

Wall Opening

(W.O.)

50” 577⁄16” x 577⁄16” 105⁄16” 493⁄8” 591⁄2”W. x 64"H. 49⁄16” 41⁄2” 31⁄16” 541⁄2”W. x 541⁄2”H.

*Opening based on 2 x 4 framing.

Wall Opening (W.O.)

Guard

6QM1079r12

Installation Instructions 2.

2.1 Installation

Figure 1A

Ceiling

Framing

H. (See Chart A) 12"

(See Chart A)

Chart A

Catalog

No.

2 x 4 Framing

Concrete Framing

WF50 55”W. x 561⁄4”H. 55”W. x 573⁄4”H.

Step 1

Construct the framed opening to correct size according to the Chart A

(below) and your fan size.

See Figure 1A and 1B.

If fan and housing is

to be framed into a 2 x 4 wall or concrete wall, See Figure 1A, 1B, 1C

and Chart A for details. For greater than 4" wall thickness,

See Figure 1D.

Recommended Clearance*

•Fan with outlet guard:

maintain 8" minimum

clearance on all sides

•Fan with discharge cone:

maintain 12" minimum

clearance on all sides

See Clearance

Recommended

Clearance,

upper right.

Figure 1B

2 x 4 Framing

A - 2 x 4 Wall Opening

2 x 4

B - Concrete Wall Opening

A - 2 x Wall Opening

3¹⁄₂"

Framing cut at

12° to match

fan housing.

Figure 1B

Concrete Framing

Figure 1D

Greater Than 4" Wall Thickness

7© Munters Corporation, December 2019 QM1079r12

Step 2

Slide fan and housing into framed wall opening.

See Figure 2

Installation InstructionsChapter 2

Figure 2

Figure 3A

54¹⁄₂"

¹⁄₄" x 1.5" Lag Screw [A]

54¹⁄₈"

Figure 3B

Step 3

Confirm that housing inside dimensions match those shown in

Figure 3A. Then secure housing to wall using (12) Lag Screws [F],

through holes in each mounting flange. See Figure 3B.

Step 4

Proceed to Installation Instructions for Discharge Cone,

Form QM1033 for 50" Fans.

NOTE:

This is NOT the

Wall Opening Size

8QM1079r12

Electrical Wiring 3.

All wiring should be installed in accordance with National, State, and Local electrical codes. Fans used to ventilate

livestock buildings or other rooms where continuous air movement is essential should be connected to individual

electrical circuits, with a minimum of two circuits per room. For electrical connection requirements, refer to diagram

on motor nameplate and to information enclosed with the Munters environmental control to be used. After wiring

check for proper motor rotation.

Single Phase Fans: motor overload protection should be provided for each fan. A Circuit Breaker Switch or slow

blow motor type fuses must be used, See Figure 4A. See form QM1400 for proper size.

Three Phase Fans: motor overload protection should be provided for each fan. A three-pole motor starter or slow

blow motor fuses must be used. See Figure 4B.

If a frequency drive (inverter) is used, confirm that motors are rated for inverter duty at the voltage used. Shielded

power cable between frequency drive and each motor is highly recommended. Installation of line reactors is

recommended to reduce voltage spikes and harmonic distortion. Supplemental motor overload protection is also

recommended.

NOTE: A safety cut-off switch should be located adjacent to each fan.

Figure 4A

Single Phase - Motor Overload Protection with Disconnect

(SY2000 or Equivalent)

120 or 240 VAC

Power Supply for

Fan

L1 (H)

L2 (N)

T1 (H)

T2 (N)

120 or 240 VAC

Power Out

to Fan

L1 (H)

L2 (N)

T1 (H)

T2 (N)

NOTE: Information in parenthesis refers to 120 VAC control.

Three Phase

Power Supply for

Fan

Three Phase

Power Out

to Fan Motor

L3 T3

Figure 4B

Three Phase - Motor Overload Protection with Disconnect

Safety cut-off

switch

Motor Starter

KEY:

L1=Line 1

L2=Line 2

L3=Line 3

H=Hot

N=Neutral

G=Ground

Circuit Breaker Switch

3.1 Wiring

9© Munters Corporation, December 2019 QM1079r12

3.2 Recommended Wire Routing (two options):

Step 5

As the power cable exits the back of motor, form a drip loop and then run cable through side of fan

housing, through flexible conduit and into building.

See Figure 5A and 5B.

Step 6

As the power cable exits the back of motor, form a drip loop and then run cable up through fan

housing and frame into wall cavity and into building.

See Figure 6A and 6B.

Electrical WiringChapter 3

Step 7

Add flashing and/or caulk around completed housing on exterior side of building wall.

Figure 5A

Drip Loop

Figure 5B

Drip

Loop

Figure 6A Figure 6B

Shutter Installation

Step 8

Insert shutter into fan by sliding the bottom flange of shutter into bottom shutter clips and pressing

shutter inward. See Figure 7A. Fasten shutter in place by rotating top and side shutter clips over

shutter flanges.

See Figure 7B.

Figure 7A Figure 7B

Shutter Clip

10 QM1079r12

Operation 4.

INITIAL START-UP: With electrical power off, verify that the fan propeller turns freely

and that all fasteners are secure. Turn on electrical power and confirm that the fan

operates smoothly.

ADJUSTMENTS: Set the fan control to the temperature shown on your ventilations system

drawing, or to a value which will provide the desired environmental conditions.

Single Phase Fans: When variable speed controls are used, the fan's idle speed will need

to be set to the recommended minimum airflow rate. Refer to the procedures included with

each control. The table below provides airflow rates at various propeller speeds for fans

wired for 240 VAC.

Three Phase Fans:

1) The use of a quality frequency drive and the installation of line reactors is

recommended to reduce voltage spikes and harmonic distortion.

2) Minimum operating frequency of 30 Hz.

3) Will require three pole contractors with overload protection (by others).

4.1 Operation

WARNING

Disconnect Power

Before Servicing

WARNING

Moving Parts, Disconnect

Power Before Servicing.

WARNING

Moving Parts: Disconnect

Power Before Servicing.

WARNING

Do Not Power Wash

Electrical Devices.

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