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Munters CX24, Instruction Manual, Page: 12 / 14

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Munters CX24 Instruction Manual Download Page 12

© Munters Corporation, May 2020

12

QM1108r0

Troubleshooting

6.

6.1 Troubleshooting

Fan Operating-
Insuffi  cient
Airfl ow

Excessive
Vibration

Excessive Noise

1. Fan control set above room
 temperature
2. Blown fuse or open circuit breaker
3. Propeller blade contacting fan housing
4. Fan control defective
5. Motor defective

1.  Variable speed control improperly     
 adjusted
2. Guard dirty

1.  Propeller blade contacting fan housing
2.  Motor bearing defective

3.  Frequency drive improperly adjusted

1.  Motor loose on mount
2. Propeller damaged
3.  Motor shaft bent

1.  Set to a lower temperature
2.  Replace fuse or reset breaker
3.  Realign motor in fan housing
4.  Repair or replace control
5.  Repair or replace motor

1.  See Operation, Step 2 for adjustment guidelines
2. Clean guard

1.  Sand fan housing to remove high spot
2.  Repair or replace motor bearings

3.  See operation, Step 2 for adjustments  guidelines

1. Tighten fasteners
2. Replace propeller
3.  Repair or replace motor

Fan Not Operating

SYMPTOM

POSSIBLE CAUSES

CORRECTIVE ACTION

Fan never turns off 

1.  Override thermostat set incorrectly
2.  Control set for continuous operation

1.  Set to the correct temperature
2.  Set speed control correctly

WARNING

!

Disconnect Power 

Before Servicing

WARNING

!

Moving Parts, Disconnect 

Power Before Servicing.

Summary of Contents for CX24

Page 1: ...s Corporation May 2020 QM1108r0 Instruction Manual CX24 Circulation Fan 24 Fan Models CX24P1 CX24P3 CX24P1G CX24P3G CX Circulation Fan with or without Guard 24 Fan CX24P1 CX24P3 CX24P1G CX24P3G Patents Pending ...

Page 2: ...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 pr...

Page 3: ...1 Unpacking the Equipment 4 1 1 Parts List 4 1 2 Fan Dimensions 5 2 Installation Instructions 6 2 1 Fan Installation 6 2 2 Optional Guard Installation 7 3 Electrical Wiring 8 4 Operation 10 5 Maintenance 11 6 Troubleshooting 12 7 Exploded View and Parts List 13 ...

Page 4: ...ardware Package as follows HP1246 Fan with Guard ID Qty Cat No Description A 4 KS0650 1 4 20 x Truss Head Bolt SS B 8 KN1705 1 4 20 Hex Nylock Nut ZP 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 you...

Page 5: ...n Dimensions Unpacking the Equipment Chapter 1 CX24 Circulation Fan Fan Specifications Hertz 60 50 60 Voltage 115 230VAC or 190 208 230 380 460VAC Phase 1 or 3 CAT NO FAN DIA NO OF BLADES A B C D Dia O D CX24 24 3 303 4 127 8 81 4 243 4 D Dia A B C ...

Page 6: ...r rope to the Lift Bracket and use a winch or actuator to pull the fan up See Figure 1B Figure 2 Eye Bolt Chain not provided Eye Bolt Step 2 For Vertical Airflow attach chain to 4 of the Eye Bolts on the fan and then hang the fan from trusses See Figure 2 Chain and hanging hardware not provided Figure 1B Chain not provided Cable or Rope not provided Lift Bracket If installing fans near heaters it ...

Page 7: ...n using 4 Nuts B See Figure 3 Figure 3 Inlet Guard Nut B Shaft of Eye Bolt 2 2 Optional Guard Installation Figure 4 Step 4 The Outlet Guard is the one with the small inner hole With the eyelets on the guard pointing toward the fan align the eyelets with the holes in orifice on the outside of the fasten using 4 Bolts A and Nuts B The head of the bolt goes on the inside of the orifice and the nut go...

Page 8: ...le motor starter or slow blow motor fuses must be used See Figure 5B 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 re...

Page 9: ...ency 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 up along leg of motor mount and Zip tie the cable to leg to prevent cable from getting tangled See Figure 6 Then run the cable out the back of fan to the circuit breaker or control panel Figure 6 3 1 Recommended Wire Routing Ele...

Page 10: ...system drawing or to a value which will provide the desired environmental conditions Single Phase Fans 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 4 1 Operation WARNING Disconnect ...

Page 11: ... At the same time verify that the motor is secure in its mount 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 ...

Page 12: ...shaft bent 1 Set to a lower temperature 2 Replace fuse or reset breaker 3 Realign motor in fan housing 4 Repair or replace control 5 Repair or replace motor 1 See Operation Step 2 for adjustment guidelines 2 Clean guard 1 Sand fan housing to remove high spot 2 Repair or replace motor bearings 3 See operation Step 2 for adjustments guidelines 1 Tighten fasteners 2 Replace propeller 3 Repair or repl...

Page 13: ... Closed Eye Bolt SS 4 5 KW3012 x 1 O D Flat Washer SS 2 6 KS1029 18 x 1 75 Hex Head Bolt SS 1 7 FH2524 Motor Mount 24 CX Fan PWDR CTD 1 8 KN1705 20 Nylock Nut SS Fan Guard Kit 4 8 9 FM1108 FM1074 24 DD Motor HP 1075 RPM 48 Fr 1 ph 115 230V 24 DD Motor HP 1140 RPM 48 Fr 3 ph 230 460V 1 10 KW3004 Narrow Type A Flat Washer SS 2 11 KN0704 18 Hex Serrated Flange Nut SS 1 12 FH1324 Lift Bracket 2 Point ...

Page 14: ...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 ...

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