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© Munters Corporation, August 2021

QM1231r10

Instruction Manual 

WM Fiberglass Wall Mount Fan

with Damper Door - 1-Pack Quick Kit

Models: WM36xKxCB

WM36K 

Wall Mount Fan 

with Damper Door

1-Pack Quick Kit

Summary of Contents for WM36 K CB Series

Page 1: ...1 Munters Corporation August 2021 QM1231r10 Instruction Manual WM Fiberglass Wall Mount Fan with Damper Door 1 Pack Quick Kit Models WM36xKxCB WM36K Wall Mount Fan with Damper Door 1 Pack Quick Kit ...

Page 2: ...nty 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 supervisio...

Page 3: ...for Installation 6 2 Installation Instructions 7 2 1 Wall Framing 7 2 2 Fan Assembly 8 2 3 Cone Installation 12 2 4 Motor Mounting 16 3 Electrical Wiring 22 3 1 Recommended Wiring 23 4 Operation 24 5 Maintenance 25 6 Winterizing 27 6 1 Winterizing 27 6 2 Winter Weather Protection 27 7 Troubleshooting 28 8 Exploded View and Parts List 29 31 ...

Page 4: ...ctions 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 ...

Page 5: ...t ZP C 1 KW3509 10mm Splitlock Washer ZP D 16 KS1007 5 16 x 1 25 Hex Head Bolts SS E 4 KS1029 5 16 x 1 75 Hex Head Bolts SS F 3 KS1075 5 16 x 2 75 Hex Head Bolts SS G 31 KN0704 5 16 SRTD Flange Nuts SS H 1 KS2463 1 4 x1 5 HEX Lag Screw ZP J 1 AC0211 AC0212 Azuma Bolt Nut Blue PL K 1 KS1046 M10 1 5 x 50mm Hex bolt ZP L 8 FH1968 1 Hole Pivoting Shutter Clip BLK PL M 2 AC1381 1 8 Dia Cable Clamp ZP N...

Page 6: ...ipment Chapter 1 1 3 TOOLS REQUIRED FOR INSTALLATION 10mm 3 8 Socket 13mm Socket 17mm 11 16 Socket or Wrench 27mm 11 16 Wrench 7 16 Socket Phillips Screwdriver 3 Size 5 32 Hex Wrench Wire Cutting Pliers Dimensions Size A B C D Dia E F Wall Openings 36 48 W x 48 H 40 59 16 483 8 2 113 16 441 2 W x 441 2 H Wall Opening W O D Dia F A A B Guard E C Dimension varies depending on wall construction and m...

Page 7: ...allation Instructions 2 Minimum Spacing Z Chart A Wall Opening W x H Fan Dia 12 recommended 3 minimum 36 44 W x 44 H Center To Center Dimension 48 Minimum Figure 1B 4 x 4 Post Construction Elevation View Ceiling Framing H See chart A 12 W See chart A See minimum spacing notes in Chart A Z 2 x 8 Header boards 4 x 4 or 4 x 6 Posts 2 x 4 Framing 2 x 8 Banner boards Ceiling 4 x 4 or 4 x 6 Posts W See ...

Page 8: ...e 2A Figure 2A Installation Instructions Chapter 2 Step 2B Remove all the other loose parts from the back of the crate See Figure 2B Figure 2B BK1149 Motor 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 2 2 Fan Assembly ...

Page 9: ...the orifice are at the bottom See Figure 3 Drain Holes 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 Figure 3 Figure 4 Installation Instructions Chapter 2 Bolt F Washer A Nuts G Motor Base Bracket Belt Tensioner Bracket ...

Page 10: ...llation Instructions Chapter 2 Bolt B Splitlock Washer C Tensioner Pulley Tensioner Arm Bolt K Step 6 Attach Drip Shield to bottom of 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 Figure 6A Barn Screw Not Provided Drip Shield Figure 6B Barn Scr...

Page 11: ...edge and center panel on opening Secure Fan to wall using 16 Barn Screws Not Provided See Figure 7A and 7B Figure 7A Step 8 Find Coated Cable and insert end opposite ferrule into small hole in upper plate of Main Frame Pull it through until ferrule stops at plate See Figure 8 Figure 8 Hole in Main Frame Ferrule Figure 7B Latch Pin Orifice panel Barn Screw Not Provided Drip Shield Ledge ...

Page 12: ...ntil all 4 cone sections are connected and laying flat Installation Instructions Chapter 2 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...

Page 13: ...side and tabs on inside Insert remaining tabs into slots so tabs are inside cone and fasten final joint using 1 Short Bolt D and Nut G with nut on inside of 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 cone See Figure 10B Short Bolt D Cone Support Bracket Nut G Short Bolt D Nut G Figure 10B ...

Page 14: ...gure 11A Frame Pin Hole in Tab of Cone Section 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 ...

Page 15: ...using Short Bolt D and Nut G See Figure 12 Nut G Nut G Previously installed Bolt and Nut 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 Figure 12 Figure 13 Azuma Bolt Nut J Short Bolt D Coated Cable Note When installing cable in temperatures BELOW 60 F lea...

Page 16: ...et screw enough to hold the Sheave in place at this time See Figure 15 Figure 15 2 4 Motor Mounting Note When wiring motor check rotation of propeller Internal wiring of motor may need to be changed to assure proper rotation of propeller 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 fa...

Page 17: ...ddle 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 Figure 16 Stiffener Short Bolts D Nuts G Figure 17A Holes in Motor Bracket Front and Middle Slots Lower Motor Bracket Flange ...

Page 18: ... Motor Sheave is aligned tighten set screw to 75 in lbs 9 N m torque See Figure 18 Figure 18 Level Motor Sheave Tensioner Pulley Propeller Sheave Installation Instructions Chapter 2 Figure 17B Stiffener 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 ...

Page 19: ...ed using 2 Hole Plugs NN Figure 19A Drain Holes Step 19B To adjust belt tensioner to proper setting loosen 10mm bolt using 17mm end wrench to allow tensioner arm to rotate Working from inlet motor side of fan place a 27mm 11 16 wrench onto the hex on the tensioner Turn wrench clockwise until the single mark on base of belt tensioner is aligned with Mark 3 on the tensioner arm Hold at this setting ...

Page 20: ...nstructions Chapter 2 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 Figure 20A 10 12 12 4 48 48 ...

Page 21: ...ng and fasten guard in place using 8 Shutter Clips L and Barn Screws not provided 2 per side See Figure 20B Figure 20B Shutter Clip L with Barn Screw not provided Shutter Clip L with Barn Screw not provided Position for Securing Guard Position for Guard Removal Position for Securing Guard Position for Guard Removal ...

Page 22: ... 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 F...

Page 23: ...21 QM1231r10 Electrical Wiring Chapter 3 Step 1 As the power cable exits the back of the motor form a drip loop and then run cable to power source See Figure 22A and 22B Figure 22B Figure 22A 3 1 Recommended Wiring Drip loop Drip loop ...

Page 24: ...otech ventilation system drawing or to a value which will provide the desired environmental conditions Single Phase Fans Single phase fans are designed for single speed operation only If a frequency drive is used the minimum operating frequency is 30 Hz Three Phase Fans 4 Operation Operation 4 WARNING Disconnect Power Before Servicing WARNING Moving Parts Disconnect Power Before Servicing WARNING ...

Page 25: ...s 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 Tighten any loose connections 4 INSPECT FAN CONTROL With power disconnected inspect all electric...

Page 26: ...to achieve proper alignment Remember to tighten the sheave set screws after making an adjustment Drive alignment is very important for long belt life and proper operation 7 BELT TIGHTENING To adjust belt tensioner to proper setting loosen 10 mm bolt using 17mm end wrench to allow tensioner arm to rotate Working from inlet motor side of fan place a 27 mm 11 16 wrench onto the hex on the tensioner T...

Page 27: ...e 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 insulatio...

Page 28: ...a lower temperature 2 Replace fuse or reset breaker 3 Realign propeller in fan housing 4 Repair or replace control 5 Repair or replace motor 1 Clean damper door fan housing 2 Clean guard 1 Sand fan housing to remove high spot 1 Tighten fasteners 2 Replace propeller 3 Repair or replace motor or propeller shaft Fan Not Operating SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION Fan Never Turns Off 1 Overrid...

Page 29: ...29 Munters Corporation August 2021 QM1231r10 Exploded View 8 Fan Components ...

Page 30: ... Munters Corporation August 2021 30 QM1231r10 Exploded View Chapter 8 Damper Cone Components ...

Page 31: ...ensioner Assembly with 3 Idler Pulley 1 FH2406 3 Idler Pulley only with Bolt 1 FH2459 Tensioner Arm only AL 1 14 FH1968 1 Hole Pivoting Shutter Clip BLK PL 8 15 FH1344 Inlet Guard 2 x 2 Mesh GZ 1 16 FH1673 Tube Strut Center PWDCTD 1 17 FH1658 Drip Shield Plate AL 1 18 FP2065 Hub Prop Adapter O D x 3 L Shaft ZP 1 19 FH1980 Cone Strut Mounting Bracket GZ 4 20 FH1436 Outlet Guard Round CTD BLK 1 21 F...

Page 32: ...one 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...

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