Munters X-Strut to H-Strut Conversion

Thank You

Thank you for purchasing a Munters X-Strut to H-Strut Conversion Kit. 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.

Please Note

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.

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 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

Chapters

1. Unpacking the Equipment
   1. Parts List
2. Installation Instructions
   1. Disassembling the Fan
   2. Pre-assembling the H-Strut Frame
   3. Installing Drive Components and Propeller
   4. Drive Alignment
3. 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.

1.1 Parts List

Each Kit includes:

• 1 - Left Tube Strut with Inserts, AL
• 1 - Right Tube Strut with Inserts, AL
• 1 - Motor Base Bracket, CTD-GZ
• 1 - Bearing Bracket, CTD-GZ
• 1 - Hardware Package (HP1120) includes:

HP1120 – FH1945/FH1950 Conversion Kit

2. Installation Instructions

2.1 Disassembling the Fan

Step 1: Remove the shutter or inlet guard from fan. See Figure 1.

Step 2: Disconnect electrical power leads from motor. See Figure 2.

Step 3: Remove existing drive belt (as necessary). See Figure 2.

Step 4: Before removing Propeller, place an alignment mark on shaft with a marker. This will be used later to reinstall the Propeller to this location. Take Propeller off the shaft, remove belt tensioner and bearing assembly (if applicable). The bearing assembly consists of two (2) bearings, a shaft and drive pulley. See Figure 3. Remove the motor from the strut. See Figure 2.

Step 5: Remove the ten (10) fasteners attaching the X-Strut frame to the housing. Discard the frame and ten fasteners.

Figure 1: Diagram showing fan inlet/shutter side.

Figure 2: Diagram illustrating motor and existing belt setup.

Figure 3: Diagram of the drive pulley, shaft, and bearings.

2.2 Pre-assembling the H-Strut Frame

Step 6: Identify/Locate the Left and Right Struts. They can be determined by two steps:

• A) The angle of bend in strut will determine the top/bottom. The larger angle is the top of the strut and the smaller is the bottom. See Figure 4.
• B) With struts in front of you. The Left strut will have the threaded inserts facing you on the left and the Right strut will have threaded inserts on your right. This is the exhaust side. See Figure 4.

Step 7: Identify/Locate the Motor Base and Bearing Base. The Motor Base has a front and 2 side flanges. The Bearing Bracket only has 2 side flanges. See Figure 5.

Figure 4: Diagram illustrating strut angles and threaded inserts.

Figure 5: Diagrams of the Motor Base and Bearing Bracket.

Step 8: With the Struts in front of you (same as Step 6B), fasten the Motor Base to Struts using (6) 13/4" Bolts [A], Flat Washer [B] and Flange Nut [C]. The flanges on the Motor Base point downward and the front flange will be away from the Threaded Inserts. See Figure 6A and 6B.

Step 9: Fasten Bearing Bracket to Struts using (6) 1/4" x 13/4" Bolts [A], Flat Washer [B] and Flange Nut [C]. Bearing Bracket only has flanges on 2 sides, which should point downward. See Figure 6A and 6B. Be sure to finger tighten only.

Figure 6A: Diagram showing the assembled H-Strut frame with motor base and bearing bracket attached.

Figure 6B: Side view diagram of the H-Strut assembly, indicating exhaust and inlet sides.

Step 10: Position assembled H-Strut Assembly into fan housing with the Exhaust Side (threaded inserts) against the housing. See Figure 7.

Step 11: Align outermost hole in the top Left Strut to outermost hole in the corner of fan housing and fasten using (1) 1" Bolt [D], Splitlock Washer [F] and Flat Washer [E] from the outside of fan. Be sure Flat Washer [E] is against Fan Housing. Finger tighten only. See Figure 7.

Step 12: Repeat Step 11 for other 3 corners of Fan Housing and Strut.

Step 13: From inside of Fan Housing, use a drill and 1/8" bit to drill a pilot hole in each corner of Fan Housing using innermost holes in each strut as a guide. Be sure to center pilot holes. See Figure 8.

Step 14: From outside of Fan Housing, drill (4) 15/32" holes in Housing using pilot holes from previous step as a guide. See Figure 9. Be very careful as to NOT drill into Threaded Insert. It is recommended that the bolts installed in outermost holes be loosened or removed to move Strut Assembly away from Housing before drilling.

Figure 7: Diagram showing the H-Strut assembly positioned within the fan housing, with bolt and washer details.

Figure 8: Diagram illustrating drilling pilot holes from the inside of the housing.

Figure 9: Diagram illustrating drilling holes from the outside of the housing.

2.3 Installing Drive Components and Propeller

Step 15: If Strut Assembly was removed or loosened in Step 14, replace Strut Assembly and tighten fasteners finger tight. In the (4) holes just drilled in housing, secure with (1) 1" Bolt [D], Splitlock Washer [F] and Flat Washer [E], making sure Flat Washer [E] is against Fan Housing and finger tighten.

Step 16: Fully tighten Motor Base and Bearing Bracket bolts first and then tighten the Strut and Housing Bolts.

Step 17: Install Bearing Assembly, removed in Step 4, to Bearing Bracket (lower base) using (4) 7/16" x 13/4″ Bolts [J], (12) Flat Washers [L] and (4) Nylock Nuts [K]. DO NOT tighten bolts at this time. To allow for proper alignment of bearings, loosen set screws on bearing closest to pulley and move as needed. See Figure 10. Retighten bearing set screws to 75 in-lbs. [8.5 N-m] of torque.

Step 18: Install Motor, removed in Step 3, to Motor Base, using (4) 1″ Bolts [D], Flat Washers [G] and Flange Nuts [H], insuring the Motor Frame is square with Motor Base. Using straight edge, align motor pulley with propeller pulley and tighten motor bolts. See Figure 11A and 11B.

Step 19: Slide Propeller onto shaft to its original position as marked in Step 4 and tighten set screws to 150 in-lbs. [17 N-m] of torque. Check to be sure Propeller is centered in orifice.

Step 20: If optional Belt Tensioner was purchased, proceed to Step 22. If reinstalling existing link belt, proceed to Step 21.

Figure 10: Diagram showing the bearing assembly installation.

Figure 11A: Diagram showing motor installation on the motor base.

Figure 11B: Diagram illustrating pulley alignment.

2.4 Drive Alignment

Step 21: Reinstall the belt by wrapping it around the smaller pulley and then starting it over the larger pulley. As you continue rolling it onto the larger pulley, belt should become taut in position shown in Figure 12. If belt becomes taut before reaching the position shown, add one link and try again. If belt is loose when in position shown, remove one link and try again. Proceed to Step 1 of Drive Alignment.

Step 22: If optional Belt Tensioner was purchased, install the Belt Tensioner finger tight in the left hole of the Motor Base as viewed from the inlet of fan. See Figure 13.

Step 23: 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 (1/16") wrench onto the hex on tensioner. Turn the wrench clockwise until the Alignment Mark is at Mark 2 on the tensioner arm. See Figure 14. Hold tensioner at this setting and tighten the 10mm bolt to 40 ft. lbs. [54 N-m] torque.

Figure 12: Diagram illustrating belt installation and tensioning.

Figure 13: Diagram showing the installation of the belt tensioner.

Figure 14: Diagram illustrating the adjustment of the belt tensioner.

Step 1 (Drive Alignment): Use a straight edge to check the alignment of the pulleys. See Figure 15.

Step 2 (Drive Alignment): If optional Belt Tensioner is installed, check alignment of belt on idler pulley; it should be centered on idler pulley. The Belt Tensioner's idler pulley is fixed in position, therefore, alignment must be obtained by adjusting the motor and propeller pulleys.

Step 3 (Drive Alignment): If an adjustment is needed, remove belt, then loosen the set screws in the pulleys and move them as necessary to achieve proper alignment.

Step 4 (Drive Alignment): Remember to tighten the pulley set screws after making an adjustment.

Step 5 (Drive Alignment): Drive alignment is very important for long belt life and proper operation.

Installation now complete, reconnect power to the motor and reinstall the shutter of inlet guard.

Figure 15: Diagrams showing pulley alignment using a straight edge.

3. Exploded View and Parts List

Diagram showing an exploded view of the H-Strut conversion components, with numbered parts corresponding to the parts list.

36" & 48" BD X-Strut to H-Strut Conversion Kit 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 1080 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