Munters Aerotech VX Series User manual

1© Munters Corporation, July 2020 QM1105r3
Instruction Manual
VX Fans Direct Drive
Models: VX14F1 • VX16F1 • VX18F1 • VX24F1 • VX24F3 •
VX26F1 • VX26F3
Aerotech
VX Fan
Direct Drive
14” - 26” Fans
VX26
VX14 - VX24

© Munters Corporation, January 2020
2QM1105r3
VX Fan Direct Drive 14”, 16”, 18”, 24” & 26” Fans
Instructions for Use and Maintenance
Thank You:
Thank you for purchasing a Munters VX Fan Direct Drive. 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, July 2020 QM1105r3
Index
Chapters Page
1. Unpacking the Equipment 4
1.1 Parts List 4
1.2 Fan Dimensions 5
2. Installation Instructions 6-8
2.1 Install 6
2.2 PT Style Shutter 7
2.3 PZ Style Shutter 8
3. Electrical Wiring 9
4. Operation 11
5. Maintenance 13
6. Winterizing 14
6.1 Winterizing 14
6.2 Winter Weather Protection 14
7. Troubleshooting 15
8. Exploded View and Parts List 16-17

© Munters Corporation, January 2020
4QM1105r3
1.1 Parts List
Unpacking the Equipment 1.
[A]
Each Fan includes:
1 – Direct Drive Fan
1 – Hardware Package as follows:
HP1145 – VX Direct Drive Fans
ID Qty. Cat. No. Description
[A] 12 KS2105 #14 x 1.5” Lag Screw, 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, July 2020 QM1105r3
1.2 Fan Dimensions
Unpacking the EquipmentChapter 1
FRONT VIEWSIDE VIEW
E
F
G - Dia.
A
A
D
B
B
C
C
Fan Specifications:
Hertz: 60 50-60
Voltage: 115/230VAC or 190-230/380-460VAC
Phase: 1 or 3
3 Phase fans only available for VX24 & VX26
FAN
DIA.
NO. OF
BLADES A B C D E F G-Dia.
(O.D.)
WALL OPENING
(I.D., framed)
14” 7 45⁄16” 12” 205⁄8” 173⁄8” 165⁄8” 7” 145⁄8” 171⁄2”W 171⁄2”H
16” 4 43⁄4” 16” 251⁄2” 221⁄4” 183⁄4” 51⁄2” 1611⁄16” 221⁄2”W 221⁄2”H
18” 5 43⁄4” 16” 251⁄2” 221⁄4” 183⁄4” 51⁄2” 1811⁄16” 221⁄2”W 221⁄2”H
24” 4 53⁄4” 20” 311⁄2” 281⁄4” 193⁄4” 51⁄2” 2411⁄16” 281⁄2”W 281⁄2”H
26” 3 51⁄2” 22” 33” 293⁄4” 181⁄8” 107⁄16” 27” 301⁄4”W 301⁄4”H

© Munters Corporation, January 2020
6QM1105r3
Installation Instructions 2.
2.1 Install
Figure 1
Ceiling
Framing
12"
Wall
Opening
(See Chart on
previous page)
8”
Min.
Step 1
Construct the framed opening to correct size according to the Chart on the previous page. See Figure 1.
Wall
Opening
(See Chart on
previous page)
Step 2
Insert fan into framed opening from inside and fasten in place using (8) Lag Screws [A]. Flash and caulk
around opening. See Figure 2.
2x4 Framing
Lag Screw [A}
VX Fan
Figure 2
OUTSIDE INSIDE
Note:
Outlet of fan comes unguarded, it is recommended
that a Munters Discharge Cone with Guard, a Fan
Hood with Guard or a guard by others is installed
on outlet of fan at this time.

7 Munters Corporation, July 2020 QM1105r3
Installation InstructionsChapter 2
2.2 PZ/PV Style Shutter
Step 3
Insert PZ/PV shutter into back of fan. See Figure 3A . Fasten shutter in place by rotating the side and
top shutter clips over the shutter flanges. See Figure 3B.
Installation is now complete, proceed to electrical wiring section.
PZ/PV Shutter
Figure 3A
Figure 3B

© Munters Corporation, January 2020
8QM1105r3
Installation InstructionsChapter 2
2.3 PT Style Shutter
Step 4
If fan needs to be mounted, so that shutter does not stick into building then frame fan as shown in Figure 4.
Top and sides require 4” minimum and bottom requires 2” minimum.
Step 5
Insert PT shutter into back of fan. See Figure 5A .Fasten shutter in place by rotating the side and top
shutter clips over the shutter flanges. See Figure 5B.
Installation is now complete, proceed to electrical wiring section.
2” Minimum Framing for fan, Bottom
Wall Opening (See Chart on Page 5)
Wall Framing
4” Minimum Framing for Fan,
Top and Sides
Wall Framing
Figure 4
PT Shutter
Figure 5A
Figure 5B

9 Munters Corporation, July 2020 QM1105r3
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 6A. 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 6B.
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 6A
Single Phase - Motor Overload Protection with Disconnect
(SY2000 or Equivalent)
          
             
  
    
    

    
    

          
       
    
    
    
    
    
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.
         
             
  
 
 

 
 

         
       
        
 
 
 
 
 !
 !
 !
 !
Figure 6B
Three Phase - Motor Overload Protection with Disconnect
      "   #   
  $  " 
          
 $  "  $  %    &     $  " 

© Munters Corporation, January 2020
10 QM1105r3
Electrical WiringChapter 3
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).
As the power cable exits the back of motor form a drip loop and then run power cable down along leg
of motor mount and "Zip" tie the cable to leg to prevent cable from getting tangled. See Figure 7. Then
run the cable out the drain hole to the circuit breaker or control panel. (Continued on next page).
Figure 7
3.1 Recommended Wire Routing: