Munters Wall Mount Fan with Damper Door WM36K Instruction Manual

Instruction Manual
WM36K
Wall Mount Fan with Damper Door
1-Pack Quick Kit

WM Fiberglass Wall Mount Fan
with Damper Door – 1-Pack Quick Kit
Models: WM36xKxCB

WM36K Fiberglass Wall Mount Fan with Damper Instructions for Use and Maintenance

Thank You:
Thank you for purchasing a Munters Wall Mount Fan with Damper. 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 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.

Unpacking the Equipment

1.1 Parts List

Each Crate Includes
1 – 36” Orifice Panel, Fiberglass Fan, Sub-Assembly
1 – Motor
1 – Drip Shield, AL
4 – Cone Sections, PL
1 – Cone Guard
1 – Inlet Guard
4 – Cone/Strut Mounting Brackets, GZ
1 – Motor Mount Stiffener Bracket, GZ
1 – Bulk Parts Package (BK1149)| BK1149 – Bulk Parts Package for WM36K
1 – Motor Base Bracket, CTD-GZ
1 – Belt Tensioner Bracket, CTD-GZ
1 – Motor Sheave, C.I.
1 – V-Belt, A-Section
1 – 3” Idler Pulley, A-Section C.I., Blue
1 – Rotary Tensioner Arm, AL
1 – Hardware Package (HP1177)
1 – Coated Cable with Ferrule, 100”L.
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HP1177 – Hardware Package for 1 – WM36K

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1.2 Fan Dimensions
Fan Specifications: 60Hz shown (50Hz available)
Power: 115/230 VAC or 208-230/460 VAC
Phase: 1 or 3
Available voltages vary depending on HP

*Dimension varies depending on wall construction and motor configuration.

1.3 TOOLS REQUIRED FOR INSTALLATION
10mm[³⁄8”] Socket
13mm [½”] Socket
17mm[1¹⁄16”] Socket or Wrench
27mm[1¹⁄16”] Wrench7⁄16” Socket
Phillips Screwdriver, #3 Size5⁄32” Hex Wrench
Wire Cutting Pliers

Installation Instructions

2.1 Wall Framing
Step 1
Construct framed opening to correct size according to the Wall Opening listed in Chart A below.
See Figure 1A and 1B. When installing exterior sheet metal before fan, leave 2” of the framing exposed on all sides so the orifice can mount flush to the frame.

2.2 Fan Assembly
Step 2A
Remove the BK1149 and Motor from the front of the crate. See Figure 2A.

Step 2B
Remove all the other loose parts from the back of the crate. See Figure 2B.

The fan can either be installed on the wall before the drive system is installed or the drive system can be installed while the fan is in the crate.

Step 4
Attach the Motor Base Bracket and the Belt Tensioner Bracket to the Tube Strut using (3) Long Bolts [F], (2) Washers [A] and (3) Nuts [G]. See Figure 4.

Step 5
Attach the 3” Idler Pulley to the Tensioner Arm using Bolt [K]. Then attach the Tensioner/Pulley Assembly to the Tensioner Bracket using Bolt [B] and Splitlock Washer [C]. Finger tighten only at this time. See Figure 5.

Step 6
Attach Drip Shield to bottom of the framed opening using (3) Barn Screws (Not Provided). See Figure 6A and 6B. If a 4” wall is used a support board must be installed as shown in Figure 6B. Be sure not to deform Drip Shield when installing screws.

Step 7
Locate Drain holes in Orifice Panel. This is the bottom of Fan. Set the bottom edge of the fan on Drip Shield ledge and center panel on opening. Secure Fan to wall using (16) Barn Screws (Not Provided). See Figure 7A and 7B.

Step 8
Find Coated Cable and insert end opposite ferrule into the small hole in the upper plate of Main Frame. Pull it through until the ferrule stops at the plate. See Figure 8.

2.3 Cone Installation
Step 9
Place all 4 cone sections on a flat surface with tabs from one facing slots of the next. See Figure 9A.
Curl up tab end of first cone section and insert tabs up into slots in the next cone section. A mallet may be needed to seat slots over tabs completely. See Figure 9B. Repeat this until all 4 cone sections are connected and laying flat.

Step 10A
Fasten each of the joints in the single outer hole using (1) Short Bolt [D] and Nut [G], with the nut on the side with the tabs. At the inner pair of holes of each joint attach (1) Cone Support Bracket to the inner hole using (1) Short Bolt [D] and Nut [G] with the bolt head on the side with the tabs. See Figure 10A.

Step 10B
Stand cone sections on end and curl ends around to form a cone with Cone Support Bracket on the outside and tabs on the inside. Insert remaining tabs into slots so tabs are inside the cone and fasten final joint using (1) Short Bolt [D] and Nut [G], with nut on inside of the cone. At the inner pair of holes attach (1) Cone Support Bracket to the inner hole using (1) Short Bolt [D] and Nut [G] with bolt head-on inside of the cone. See Figure 10B.

Step 11A
Install cone onto fan by putting the top of the cone over top of the fan. The hole in the tab of one cone section should slide down over the Frame Pin in the Main Frame assembly. Allow the remainder of the cone to slide over the orifice panel making sure Cone Support Brackets remain on the outside of the cone. See Figure 11A.

Step 11B
Place end of Cone Support Bracket with slot over bolt holding Cone/Strut Mounting Bracket to the orifice and secure with Nut [G]. See Figure 11B. Secure Cone to Fan installing Medium Bolt [E] through the remaining hole in the Cone Support Bracket and fastening with Nut [G]. A long screwdriver may be needed to help align the holes through Cone Support Bracket, Cone, Main Frame and Orifice. Repeat process for all 4 Cone Support Brackets. See Figure 11B.

Step 12
Insert guard into cone with the eyelets facing you. Install eyelets over bolts already installed in cone and fasten with Nut [G]. Secure remaining eyelets using Short Bolt [D] and Nut [G]. See Figure 12.

Step 13
Loop Coated Cable that was installed in a previous step, around the lower, middle joint in guard and fasten to itself with Azuma Bolt & Nut [J]. Make sure cable is pulled snug. See Figure 13.

Note:
When installing cable in temperatures BELOW 60°F, leave cable slightly slack (do not overtighten).

Step 14
If Fans are to be installed 60” O.C., cut the 3 o’clock and 9 o’clock guard wire in the position shown. Push the side of the cone in as far as possible and fasten the cut guard wire to the attached guard wire using Clamp [M]. See Figure 14.

2.4 Motor Mounting
Step 15
Find the Key provided with the Motor and place it in the Keyway on the motor shaft. Place the Motor Sheave on the Motor shaft with the hub facing towards the motor. See Figure 15. ONLY tighten the set screw enough to hold the Sheave in place at this time. See Figure 15.

Step 16
Set Motor on Motor Bracket so Motor base rests against lower Motor Bracket flange. Align middle and front slots in Motor base with holes in Motor Bracket. See Figure 16.

Step 17A
Secure Motor to Motor Bracket and Motor Bracket Stiffener using (4) Short Bolts [D] and Nuts [G]. The rear upper bolt is where Motor Bracket Stiffener is attached. See Figure 17A.

Step 17B
Using channel locks and/or a hammer twist the Motor Bracket Stiffener so that the holes in the bracket lay flat against the framing. Then secure the bracket to the framing using (1) Lag Screw [H]. See Figure 17B.

Step 18
Use a straight edge or level to check the alignment of the Propeller Sheave, Tensioner Pulley, and Motor Sheave.
If needed, adjust the position of the Motor Sheave so the 3 pulleys line up. Once Motor Sheave is aligned tighten the set screw to 75 in-lbs [9 N-m] torque. See Figure 18.

Step 19A
Slide V-belt over Propeller and install by wrapping it around 2 smaller pulleys and starting it over
larger Sheave. Continue rolling it onto the larger Sheave until it fits into the groove. See Figure 19A.
If desired the 2 drain holes in the Orifice Panel can be plugged using (2) Hole Plugs [NN]

Step 19B
To adjust the belt tensioner to the proper setting, loosen the 10mm bolt (using a 17mm end wrench) to allow the tensioner arm to rotate. Working from the inlet/motor side of the fan, place a 27mm (1¹⁄16”) wrench onto the hex on the tensioner.
Turn the wrench clockwise until the single mark on the base of the belt tensioner is aligned with Mark 3 on the tensioner arm. Hold at this setting and tighten the 10mm bolt to 40 ft. lbs. [54 N-m] torque. See Figure 19B.

Step 20A
Cut a section of the inlet guard out to fit over the motor as shown below for the appropriate fan. When cutting the guard wires make sure to cut them as close to the other wires as possible . See Figure 20A.

Step 20B
Place guard against framing and fasten guard in place using (8) Shutter Clips [L] and Barn Screws (not provided), 2 per side. See Figure 20B.

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 the information enclosed with the Munters environmental control to be used.
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 21A. See form QM1400 for the 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 21B.
If a frequency drive (inverter) is used, confirm that motors are rated for inverter duty at the voltage used. The 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.

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.

3.1 Recommended Wiring
Step 1
As the power cable exits the back of the motor form a drip loop and then runs a cable to a power source. See Figure 22A and 22B.

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Operation

1. 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 fan operates smoothly.
2. ADJUSTMENTS: Set fan control to the temperature shown on your Aerotech ventilation system drawing, or to a value that will provide the desired environmental conditions.

Single Phase Fans: Single phase fans are designed for single-speed operation only.
Three Phase Fans: If a frequency drive is used, the minimum operating frequency is 30 Hz.

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Maintenance

The following inspection and cleaning procedures should be performed monthly:
Tools Needed for Maintenance:
wrenches: 10mm, 13mm, 16mm, 17mm, 27mm, ½”, 6mm Hex

1.   INSPECT PROPELLER: Check that propeller is secure on the drive hub 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.
   (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 frames 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. Tighten any loose connections.

4. INSPECT FAN CONTROL: With power disconnected, inspect all electrical connect tions. 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. NEVER CLEAN ELECTRICAL EQUIPMENT WITH A PRESSURE WASHER!
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5. CHECKING PULLEYS: Roll the belt off and look at all pulleys. If a 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.
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6. CHECK DRIVE ALIGNMENT: Check alignment of the belt on idler pulley, it should be centered on the idler pulley. The belt tensioner idler pulley and propeller sheave are fixed in position, therefore, alignment must be obtained by adjusting the motor sheave. If an adjustment is needed,  remove the belt, then loosen the set screws in the sheave and move as necessary to achieve proper alignment.
   Remember to tighten the sheave set screwsafter making an adjustment. Drive alignment is very important for long belt life and proper operation.|
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7. BELT TIGHTENING: To adjust the belt tensioner to the proper setting, loosen the 10 mm bolt (using a 17mm end wrench) to allow the tensioner arm to rotate. Working from the inlet/motor side of the fan, place a 27 mm (1¹⁄16”) wrench onto the hex on the tensioner. Turn the wrench clockwise until the single mark on the base of the belt tensioner is aligned with Mark 3 on the tensioner arm. Hold tensioner at this setting and tighten 10mm bolt to 40 ft.-lbs [54 N-m] torque.

Winterizing

6.1 Winterizing
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.

6.2 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 23, or snow guards may be placed on the roof, See Figure 24.

*Snow Guard Suppliers

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

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.

Troubleshooting

7.1 Troubleshooting

Exploded View

Parts List

WM36F 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

QM1231r10
© Munters Corporation, August 2021

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