Aerotech VX Fan Direct Drive

Introduction

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 proper installation and maintenance, it will provide many years of service.

To achieve maximum performance and ensure long life from your Munters product, it is essential that it be installed and maintained properly. Please read all instructions carefully before beginning installation.

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 aghort.info@munters.com.

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.

Index of Chapters

• 1. Unpacking the Equipment
• 2. Installation Instructions
• 3. Electrical Wiring
• 4. Operation
• 5. Maintenance
• 6. Winterizing
• 7. Troubleshooting
• 8. Exploded View and Parts List

1. Unpacking the Equipment

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. The fan is shipped complete with all accessories.

1.1 Parts List

Each Fan includes:

• 1 - Direct Drive Fan
• 1 - Hardware Package

HP1145 - VX Direct Drive Fans Hardware Package:

1.2 Fan Dimensions

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

Diagrams:

• Side View: Shows fan dimensions A through G, including depth and diameter.
• Front View: Shows fan dimensions A and B, indicating width and height of the wall opening.

2. Installation Instructions

2.1 Install

Step 1: Construct the framed opening to the correct size according to the chart on the previous page. (See Figure 1).

Figure 1: Diagram illustrating the framed opening for fan installation, showing minimum clearance requirements (8" min. wall opening, 12" wall opening).

Step 2: Insert the fan into the framed opening from the inside and fasten it in place using (8) Lag Screws [A]. Flash and caulk around the opening. (See Figure 2).

Note: The outlet of the fan comes unguarded. It is recommended that a Munters Discharge Cone with Guard, a Fan Hood with Guard, or a guard supplied by others is installed on the fan outlet at this time.

Figure 2: Diagram showing the fan installed in the framed opening, secured with lag screws [A], with a note about optional guards and the fan's orientation (OUTSIDE/INSIDE).

2.2 PZ/PV Style Shutter

Step 3: Insert the PZ/PV shutter into the back of the fan. (See Figure 3A). Fasten the shutter in place by rotating the side and top shutter clips over the shutter flanges. (See Figure 3B).

Installation is now complete; proceed to the electrical wiring section.

Figure 3A: Diagram showing the PZ/PV shutter being inserted into the back of the fan.

Figure 3B: Close-up diagram illustrating how to fasten the PZ/PV shutter using clips.

2.3 PT Style Shutter

Step 4: If the fan needs to be mounted so that the shutter does not stick into the building, frame the fan as shown in Figure 4. Top and sides require 4" minimum framing, and the bottom requires 2" minimum framing.

Figure 4: Diagram showing recommended framing dimensions for mounting the fan with the shutter not protruding into the building.

Step 5: Insert the PT shutter into the back of the fan. (See Figure 5A). Fasten the shutter in place by rotating the side and top shutter clips over the shutter flanges. (See Figure 5B).

Installation is now complete; proceed to the electrical wiring section.

Figure 5A: Diagram showing the PT shutter being inserted into the back of the fan.

Figure 5B: Close-up diagram illustrating how to fasten the PT shutter using clips.

3. Electrical Wiring

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 the diagram on the 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). Refer to form QM1400 for proper sizing.

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 the 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: Wiring diagram for Single Phase - Motor Overload Protection with Disconnect (SY2000 or Equivalent). Shows connection of power supply to circuit breaker switch and then to fan.

Figure 6B: Wiring diagram for Three Phase - Motor Overload Protection with Disconnect. Shows connection of three-phase power supply to motor starter and safety cut-off switch, then to fan motor.

Key for Wiring Diagrams:

• L1 - Line 1
• L2 - Line 2
• L3 - Line 3
• H = Hot
• N = Neutral
• G = Ground

NOTE: Information in parenthesis refers to 120 VAC control.

3.1 Recommended Wire Routing:

As the power cable exits the back of the motor, form a drip loop and then run the power cable down along the leg of the motor mount. "Zip" tie the cable to the leg to prevent the cable from getting tangled. (See Figure 7). Then, run the cable out the drain hole to the circuit breaker or control panel.

Figure 7: Diagram illustrating recommended wire routing for the fan's power cable, showing a drip loop and securing the cable.

Three Phase Fans:

• The use of a quality frequency drive and the installation of line reactors is recommended to reduce voltage spikes and harmonic distortion.
• Minimum operating frequency of 30 Hz.
• Will require three-pole contractors with overload protection (by others).

4. Operation

4.1 Operation

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.

[Warning: Disconnect Power before servicing]

ADJUSTMENTS: Set the fan control to the temperature shown on your ventilation system drawing, or to a value which will provide the desired environmental conditions.

[Warning: Moving parts, disconnect power before servicing.]

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.

14" Fans Airflow Rates (CFM)

16" Fans Airflow Rates (CFM)

18" Fans Airflow Rates (CFM)

24" Fans Airflow Rates (CFM)

26" Fans Airflow Rates (CFM)

5. Maintenance

5.1 Maintenance

The following inspection and cleaning procedures should be performed monthly:

1. INSPECT PROPELLER: Check that the propeller is secure on the 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 the motor using a brush or cloth. [Warning: 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.
   • SHUTTER: Carefully clean dust from shutter blades and frame so that the shutter opens and closes 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 the control case and sensor using a soft brush or cloth. [Warning: NEVER CLEAN ELECTRICAL EQUIPMENT WITH A PRESSURE WASHER!]

[Warning: Disconnect Power Before Servicing]

[Warning: Moving Parts, Disconnect Power Before Servicing.]

[Warning: Do Not Power Wash Electrical Devices.]

6. Winterizing

6.1 Winterizing

In most climates, it is probable that the ventilation system will never need to operate at 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 the 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.

6.2 Winter Weather Protection

To prevent cone or fan damage from snow or ice sliding off the building roof, weather protection must be provided. A weather shelter may be constructed to cover the entire fan (See Figure 8), or snow guards may be placed on the roof (See Figure 9).

Figure 8: Diagram showing a weather shelter constructed over the fans.

Figure 9: Diagram showing snow guards placed on the roof according to manufacturer recommendations.

*Snow Guard Suppliers:

IMPORTANT

Munters Product and System Warranties do not cover cone or fan damage from external sources.

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.

7. Troubleshooting

7.1 Troubleshooting

[Warning: High Voltage, disconnect power before servicing.]

[Warning: Moving parts, disconnect power before servicing.]

8. Exploded View and Parts List

Exploded view diagram showing the components of the VX fan.

Parts List

Company Information

VX Fan 14", 16", 18", 24", 26" with "RC" Cone is developed and produced by Munters Corporation, Lansing, Michigan U.S.A. 1-800-227-2376

Munters Europe AB, Isafjordsgatan 1, P.O. Box 1150, SE-164 26 Kista, Sweden. Phone +46 08 626 63 00, Fax +46 8 754 56 66.

Munters Corporation 2691 Ena Drive Lansing, MI 48917 U.S.A. Phone +1 800-227-2376, Fax +1 517-676-7078

www.munters.us

Australia: Munters Pty Limited, Phone +61 2 6025 6422, Brazil: Munters Brasil Industria e Comercio Ltda, Phone +55 41 3317 5050, Canada/US: Munters Corporation Lansing, MI Phone +1 517 676 7070, China: Munters Air Treatment Equipment (Beijing) Co. Ltd, Phone +86 10 80 481 121, Denmark: Munters A/S, Phone +45 9862 3311, India: Munters India, Phone +91 20 3052 2520, Indonesia: Munters, Phone +62 818 739 235, Italy: Munters Italy S.p.A., Chiusavecchia, Phone +39 0183 52 11, Japan: Munters K.K., Phone +81 3 5970 0021, Korea: Munters Korea Co. Ltd., Phone +82 2 761 8701, Mexico: Munters Mexico, Phone +52 818 262 54 00, Russia: Munters AB, Phone +7 812 448 5740, Singapore: Munters Pte Ltd., Phone +65 744 6828, South Africa and Sub-Sahara Countries: Munters (Pty) Ltd., Phone +27 11 997 2000, Spain: Munters Spain S.A., Phone +34 91 640 09 02, Sweden: Munters AB, Phone +46 8 626 63 00, Thailand: Munters Co. Ltd., Phone +66 2 642 2670, Turkey: Munters Form Endüstri Sistemleri A.Ş, Phone +90 322 231 1338, USA: Munters Corporation Lansing, MI Phone +1 517 676 7070, Vietnam: Munters Vietnam, Phone +84 8 3825 6838, Export & Other countries: Munters Italy S.p.A., Chiusavecchia Phone +39 0183 52 11