Munters VX Series User manual

1© Munters Corporation, January 2020 QM1086r8
Instruction Manual
VX Fans with “RC”cone
Models: VX36FxCx • VX365FxCx • VX481FxCx • VX4815FxCx •
VX511FxCx • VX5115FxCx • VX512FxCx • VX5515FxCx
• VX552FxCx
Aerotech
VX Fan
with “RC” Cone
36”, 48”, 51”&
55” Fans
VX51 and VX55
VX36 and VX48

© Munters Corporation, January 2020
2QM1086r8
VX Fan with “RC” Cone 36”, 48”, 51”& 55” Fans
Instructions for Use and Maintenance
Thank You:
Thank you for purchasing a Munters VX Fan with “RC” Series Discharge Cone. 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, January 2020 QM1086r8
Index
Chapters Page
1. Unpacking the Equipment 4
1.1 Parts List 4
1.2 Fan Dimensions 5
2. Installation Instructions 6-12
2.1 Install 6
2.2 PT Style Shutter 11
2.3 PZ Style Shutter 12
3. Electrical Wiring 13
4. Operation 15
5. Maintenance 16-17
6. Winterizing 18
6.1 Winterizing 18
6.2 Winter Weather Protection 18
7. Troubleshooting 19
8. Exploded View and Parts List 20-23
8.1 VX36 and VX48 20-21
8.2 VX51 and VX55 22-23

© Munters Corporation, January 2020
4QM1086r8
1.1 Parts List
Unpacking the Equipment 1.
[A]
[B]
[C]
[D]
Each Fan includes:
1 – Belt Drive Fan
1 – Cone
1 – Guard
1 – Shutter
1 – Hardware Package as follows:
HP1147– 36”/48”/51”/55” Fan, One Piece Cone, PT/PV Shutter
ID Qty. Cat. No. Description
[A] 12 KS2105 #14 x 1.5” Lag Screw, SS
[B] 8 KS0650 1⁄4”-20 x ⁷⁄₈” Truss Head Bolt, SS
[C] 8 KW3012 1⁄4” x 1” O.D. Flat Washer, SS
[D] 8 KN1717 1⁄4”-20 Hex Flange, Nylock Nut, 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.

5© Munters Corporation, January 2020 QM1086r8
1.2 Fan Dimensions
Unpacking the EquipmentChapter 1
FRONT VIEWSIDE VIEW
G
H
I
J
K - Dia.
A
C1
D
B
C
F1
A
E
C2
K - Dia.
F2
D
Fan Specifications:
Hertz: 60 60
Voltage: 120/240VAC or 208-240/480VAC
Phase: 1 or 3
Hertz: 50 50
Voltage: 110/208-220VAC or 190/380VAC
Phase: 1 or 3
FAN
DIA. ABC1*C2*DEF1*F2*G H I J K-Dia. WALL OPENING
(I.D., framed)
36” 67⁄8”22
7⁄8”6 7⁄8”6 7⁄8”45 3⁄4”45 3⁄4”22 7⁄8”22 7⁄8”50 5⁄8”24 1/16”8” --50 3⁄8” 43”W 43”H
48” 87⁄8”28
7⁄8”8 7⁄8”8 7⁄8”57 3⁄4”57 3⁄4”28 7⁄8”28 7⁄8”55 3⁄8”24 7/16”8” --63 5⁄8” 55”W 55”H
51" 7" 291⁄2"7
1⁄2"8" 60 1⁄2" 59" 301⁄4"26 1⁄2"54 3⁄16"23 3⁄16" 11" 25⁄16" 65" 561⁄2”W 573⁄4”H
55" 73⁄8"31
3⁄8"7 3⁄4"7 3⁄4"63 5⁄8"62 3⁄4"27 7⁄8"31 7⁄8"58 9⁄16"25 15⁄16"11 3⁄4"2 5⁄16" 70" 60”W 611⁄4”H
*Dimensional Plus/Minus 1/4”, Field Verify

© Munters Corporation, January 2020
6QM1086r8
Installation Instructions 2.
2.1 Install
Top of Post Wall
H. (See Chart A)
W.
(See Chart A)
6 x 6 Post - 6'O.C.
Figure 1B
POST Construction
Figure 1A
Frame Construction
Ceiling
Framing
H. (See Chart A) 12"
W.
(See Chart A)
'Z'
Chart A
'Z'
FAN DIA. CONE WALL OPENING
(W. X H.) MINIMUM SPACING 'Z' CENTER TO CENTER DIMENSION
36” 36RC 43”W. x 43”H. 12” recommended; 8” minimum 51” Minimum
48” 48RC 55”W. x 55”H. 12” recommended; 9” minimum 64” Minimum
51”51RC 561⁄4”W. x 573⁄4”H.12”recommended; 10”minimum 66”Minimum
55”55RC 60”W. x 611⁄4”H. 12”recommended; 10”minimum 70” Minimum
Step 1
Construct the framed opening to correct size according to the Chart A. See Figure 1A and 1B.

7© Munters Corporation, January 2020 QM1086r8
Step 2A
Insert fan into the framed opening from the inside. While lifting fan up tight to framing, fasten top of
fan with (3) Lag Screw [A].
See Figure 2A and 2B .Next, fasten bottom of fan, then both sides with
remaining (9) Lag Screw [A]. Install flashing around opening tight to fan and caulk around fan to seal.
Installation InstructionsChapter 2
Figure 3
Wall Framing
2" Minimum Framing for fan, Bottom
Wall Opening (See Chart A, Page 4)
4" Minimum Framing for fan,
Top and Sides
Wall Framing
Figure 2A
Frame Construction
OUTSIDE INSIDE
2 x 4 Framing
#14 x 1.5" Lag Screws [A] #14 x 1.5" Lag Screws [A]
Post
2 x 8 Banner Boards
2 x 8 Header Boards
Figure 2B
Post Construction
INSIDEOUTSIDE
Step 2B
If fan needs to be mounted, so that shutter does not stick into building then frame fan as shown in Figure 3. Top
and sides require 4" minimum and bottom requires 2" minimum.

© Munters Corporation, January 2020
8QM1086r8
Installation InstructionsChapter 2
Step 3
Installing the one piece cone may require 2 people. If temperature is above 50°F then proceed to Step 5.
If temperature is below 50°F then proceed to Step 4.
Step 4
Using Locking Sheet Metal Pliers bend the cone tabs outward to allow the cone to slide onto the fan easier.
See Figure 4.
Figure 5A Figure 5B
Figure 4
Cone Tabs
Cone
Locking Sheet Metal Pliers
Cone Tab
Hole at 10 O'clock
Top Cone Tab
Cone Flange Nut [D]
Cone (outside)
Fan Outlet
(inside)
Truss Head Bolt [B]
Washer [C]
Step 5
Look for the “TOP” label on the Polycone and set the top of the Polycone on top of the fan orifice and install
(2) Truss Head Bolts [B] through holes in fan outlet through the slots in the cone at about the 10 and 2
o’clock positions and fasten with Washers [C] and Flange Nuts [D]. Truss head of each bolt must be on
the inside of the fan outlet; washers and flange nuts must be on outside of cone.
See Figure 5A and 5B.
Finger tighten nuts only at this time.

9© Munters Corporation, January 2020 QM1086r8
Note:
If installing your existing guard in the new
Polycone, then proceed to Step 9. If installing
the new snap-in guard then proceed to Step 7.
Installation InstructionsChapter 2
Figure 6
Remaining Holes
Cone
Step 6
Work down the sides of the cone, sliding the cone tabs onto the fan until the bottom tab is in place. Keep
pressure on the cone to make sure tabs stay on the fan. Install (6) Truss Head Bolts [B], Washers [C] and
Flange Nuts [D] in the remaining holes in the fan outlet and slots in the cone to finish securing cone to fan.
See Figure 5B and Figure 6. Tighten all nuts at this time, making sure not to over tighten.
Figure 7A
Step 7
The snap-in guard has a slight conical shape to it so, when installed the center of the guard should protrude
out slightly.
See Figure 7A.
Cone Guard

© Munters Corporation, January 2020
10 QM1086r8
Step 8
Starting at the bottom of the cone, locate one of the guard tabs and put the guard tab through the guard slot in
the cone.
See Figure 7B .Then work up around the guard and install each of the other guard tabs in each of
the corresponding guard slots. Some force may be required to snap the last tab into the last slot, pull out on
the center of the cone while pushing in on the guard tab until it snaps into place.
Figure 7B
Cone
Guard
Guard Tab
Guard Tab
Guard Slot in cone
Figure 8B
Guard Mounting
Pad
Guard
eyelet
Figure 8A
Nut
Bolt
Guard Mounting Pad
Guard
Fan Outlet
Installation InstructionsChapter 2
Step 9
If installing your existing guard into the new cone, locate the flat guard mounting pads on the cone and drill
a 9⁄32” dia. hole in the center of each pad. Then insert existing guard into cone with the guard eyelets facing
away from you. Line up each eyelet with a hole in the guard pads. Secure guard to cone using (8) existing
Bolts and Nuts.
See Figure 8A and 8B .Tighten all nuts at this time.

11© Munters Corporation, January 2020 QM1086r8
Figure 9
PT Shutter
Step 11
Fasten shutter in place by rotating the side and top
shutter clips over the shutter flanges.
See Figure 10.
Installation is now complete, proceed to Electrical
Wiring Section.
Figure 10
2.2 PT Style Shutter
Fixed Bottom
Shutter Clip
Installation InstructionsChapter 2
Note:
PT Shutter extends into room
2 5⁄16” from back of fan.
Step 10
Insert PT Shutter into fan by sliding the bottom flange of shutter into
bottom shutter clips and pressing shutter inward.
See Figure 9.
VX55 Only

© Munters Corporation, January 2020
12 QM1086r8
Installation InstructionsChapter 2
2.3 PZ Style Shutter
PV Shutter
Fixed Bottom
Shutter Clip
Figure 11B
Figure 11A
Step 12
Insert PZ shutter into fan by sliding the bottom flange of shutter into bottom shutter clips and pressing
shutter inward,
See Figure 11A .Fasten shutter in place by rotating the side and top shutter clips over
the shutter flanges,
See Figure 11B.
Installation is now complete, proceed to electrical wiring section.
VX55 Only

13© Munters Corporation, January 2020 QM1086r8
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 12A. 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 12B.
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 12A
Single Phase - Motor Overload Protection with Disconnect
(SY2000 or Equivalent)
120 or 240 VAC
Power Supply for
Fan
L1 (H)
L2 (N)
G
T1 (H)
T2 (N)
G
120 or 240 VAC
Power Out
to Fan
L1 (H)
L2 (N)
T1 (H)
T2 (N)
KEY:
L1=Line 1
L2=Line 2
L3=Line 3
H=Hot
N=Neutral
G=Ground
NOTE: Information in parenthesis refers to 120 VAC control.
Three Phase
Power Supply for
Fan
L1
L2
G
T1
T2
G
Three Phase
Power Out
to Fan Motor
L1
L2
T1
T2
L3 T3
L3 T3
Figure 12B
Three Phase - Motor Overload Protection with Disconnect
Safety cut-off
switch
Motor Starter
Circuit Breaker Switch

© Munters Corporation, January 2020
14 QM1086r8
Electrical WiringChapter 3
As the power cable exits the back of motor form a drip loop and then run power cable down along strut
and "Zip" tie the cable to strut to prevent cable from getting tangled in the pulley or belt.
See Figure 13.
Then run the cable out the drain hole to the circuit breaker or control panel. (Continued on next page).
Figure 13
3.1 Recommended Wire Routing:

15© Munters Corporation, January 2020 QM1086r8
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.
A = Fan with cone & shutter B = Fan with hood & shutter
CFM 0.02” Static Pressure 0.05” Static Pressure
AB AB
RPM VOLTS RPM VOLTS RPM VOLTS RPM VOLTS
36” Fans
750 — — — — — — 350 121
1000 — — — — 370 123 390 128
1250 330 117 330 119 390 127 410 130
1500 360 123 360 125 410 131 430 134
1750 370 125 370 127 425 136 440 136
2000 380 128 390 130 450 137 460 139
2500 410 131 420 135 470 141 480 143
3000 430 135 440 138 490 145 500 146
4000 470 142 480 145 520 149 530 151
5000 520 148 530 152 560 156 570 158
6000 560 154 580 159 590 161 600 162
7000 610 159 640 165 640 166 680 172
8000 650 166 700 173 690 172 750 179
9000 710 172 760 185 740 178 810 209
10,000 770 179 840 225 790 195 — —
11,300 840 223 — — — — — —
Three Phase Fans:
1) 36" Direct Drive, 3 Phase fan is not suitable for frequency drive.
2) The use of a quality frequency drive and the installation of line reactors is recommended to
reduce voltage spikes and harmonic distortion.
3) Minimum operating frequency of 30 Hz.
4) 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.

© Munters Corporation, January 2020
16 QM1086r8
Maintenance 5.
5.1 Maintenance
The following inspection and cleaning procedures should be performed monthly:
Tools Needed for Maintenance:
wrenches: 10mm, 13mm, 17mm, 27mm
1) INSPECT PROPELLER: Check that propeller is secure on prop shaft or motor shaft
and that there are no signs of damage. The blades are of a self-cleaning design
and should not require maintenance.
2) CLEAN regularly for best results:
• FAN MOTOR: Remove any dust accumulation from motor using a brush or
cloth. (DO NOT use a pressure washer). A clean motor will run cooler and last
longer. At the same time, verify that the motor is secure in its mount.
• DAMPER: Carefully clean dust from damper doors and frame so that doors
open and close freely. A brush or cloth should be used.
• GUARD: Clean any dust or feathers from fan guards using a brush. Dirty
guards can reduce airflow.
3) CHECK FASTENERS: For safety, all fasteners should be inspected 1 month after
initial operation and yearly thereafter. Tighten any loose connections.
4) INSPECT FAN CONTROL: With power disconnected, inspect all electrical
connections. Wiring should be secure and in good condition. Remove any dust
build-up from control case and sensor using a soft brush or cloth. NEVER CLEAN
ELECTRICAL EQUIPMENT WITH A PRESSURE WASHER!
5) GREASE BEARINGS: Grease bearings every 4-6 months.
Use no more than 2 shots when greasing fan.
• A premium non-water based grease is recommended:
- Shell Alvania #2 - Mobil Mobilux #2
- Exxon Unirex N2 - Texaco Premium RB
- Mobil 532 - Texaco Multifak #2
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.

17© Munters Corporation, January 2020 QM1086r8
6) CHECK DRIVE ALIGNMENT: Check to make sure the belt is
centered on the idler pulley, then use a straight edge to check
the alignment of the drive pulleys. If an adjustment is needed,
remove the belt, then loosen the set screw in one pulley and move
it. Remember to tighten the set screw after making an adjustment.
Drive alignment is very important for long belt life and proper
operation.
7) CHECKING PULLEYS: Roll the belt off and look at both pulleys.
If the pulley has grooves in it or is no longer smooth, it needs
replacement. A loose or slipping belt will reduce fan performance
up to 60% and cause premature belt failure.
8) BELT TENSIONING: Check condition of belt, if worn, replace
belt. If belt is in good condition then make sure the tensioner is in
the correct position. Looking from the inlet of the fan, the correct
position of the tensioner is approximately the 7 o'clock position.
See Figure 14A.
To adjust the tensioner, loosen the 10mm bolt fastening the
tensioner to the motor base (using 17mm end wrench) to allow
tensioner arm to rotate. Place a 27mm (11⁄16”) wrench onto the
hex on tensioner. Turn the wrench clockwise until the Alignment
Mark is at Mark 2 on the tensioner arm. See Figure 14B. Hold
tensioner at this setting and tighten the 10mm bolt to 40 ft. lbs.
[54 N-m] torque.
Motor
Pulley
Straight Edge
Belt
Idler
Pulley
Propeller
Pulley
Smooth
Pulley
Grooved
Pulley
Incorrect
location
Correct
location
MaintenanceChapter 5
Alignment Mark
Hex
Figure 14B
Mark 2
Figure 14A

© Munters Corporation, January 2020
18 QM1086r8
Winterizing 6.
In most climates, it is probable that the ventilation system will never need to operate at a total capacity during
the colder winter months. Consequently, it is advisable to “winterize” those fans which will not be used in cold
weather to avoid unnecessary heat loss and condensation.
To winterize, turn fan control “off”. Install the insulated closure panel over the fan intake. If you don’t have an
insulated closure panel, a piece of rigid insulation material can be used. Remember the insulation panel must
be removed before warmer weather returns.
NOTE: At least one single speed fan should be left uncovered and with power available to provide air
movement in the event of variable speed control difficulties.
6.1 Winterizing
6.2 Winter Weather Protection
To prevent cone or fan damage from snow or ice sliding off building roof, weather protection must be
provided. A weather shelter may be constructed to cover the entire fan, See Figure 15, or snow guards may
be placed on the roof, See Figure 16.
Building
Wall
Provide Weather
Shelter Over Fans
6" Min.
Fan with
Discharge Cone
Figure 15
Snow Guards located
per manufacturers
recommendations*
Ceiling
Figure 16
Note: Snow guards are designed to prevent sudden, dangerous snow
and ice slides when attached to the building roof according to
manufacturers recommendations. The supplier listing above is given
as a reference only. Munters does not endorse any specific snow
guard product and no performance warranty is implied.
Munters Product and System
Warranties do not cover cone or fan
damage from external sources.
IMPORTANT
!
Snojax, Inc. 800-766-5291 717-697-2452 www.snojax.com
Polar Blox 800-298-4328 814 629-9090 www.polarblox.com
LM Curbs 800-284-1412 903 759-3598 www.lmcurbs.com
Alpine Snow Guards 888-766-4273 888-766-9994 www.alpinesnowguards.com
*Snow Guard Suppliers
Company Name Phone No. Fax No. Web Site
Fan with
Discharge
Cone

19© Munters Corporation, January 2020 QM1086r8
Troubleshooting 7.
Fan Operating-
Insufficient
Airflow
Excessive
Vibration
Excessive Noise
1. Fan control set above room
temperature
2. Blown fuse or open circuit breaker
3. Propeller blade contacting fan
housing
4. Fan control defective
1. Shutter jammed or dirty
2. Guard dirty
3. Frequency drive improperly adjusted
4. Incorrect Belt Tension/worn belt
1. Propeller blade contacting fan housing
2. Motor bearing or shaft bearing defective
3. Frequency drive improperly adjusted
1. Motor loose on mount
2. Propeller damaged
1. Set to a lower temperature
2. Replace fuse or reset breaker
3. Realign motor in fan housing
4. Repair or replace control
5. Repair or replace motor
1. Unjam and clean shutter
2. Clean guard
3. See operation, Step 2 for adjustments guidelines
4. See Maintenance Section, Belt Tensioning
1. Sand fan housing to remove high spot
2. Repair or replace motor or shaft bearings
3. See operation, Step 2 for adjustments guidelines
1. Tighten fasteners
2. Replace propeller
3. Repair or replace motor or propeller shaft
Fan Not Operating
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
7.1 Troubleshooting
WARNING
!
High Voltage, disconnect
power before servicing.
WARNING
!
Moving parts, disconnect
power before servicing.
WARNING
!
Moving parts, disconnect
power before servicing.

© Munters Corporation, January 2020
20 QM1086r8
3
4
5
7
8
9
10
11
17
1
2
6
14
Exploded View 8.
8.1 VX36 and VX48