Munters CX24 Manuale utente
1© Munters Corporation, May 2021 QM1108r1
Instruction Manual
CX24 Circulation Fan - 24"
Fan Models: CX24P1 • CX24P3 • CX24P1G • CX24P3G •
CX24PW1 • CX24PW3 • CX24P1WG • CX24P3WG
CX
Circulation Fan
with or without
Guard
24” Fan
CX24P1/CX24P3
CX24PW1G/CX24PW3G
*Patents Pending
© Munters Corporation, May 2021
2QM1108r1
CX24 Circulation Fan 24” Fans
Instructions for Use and Maintenance
Thank You:
Thank you for purchasing a Munters CX Circulation Fan. 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 insure 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
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.
3© Munters Corporation, May 2021 QM1108r1
Index
Chapters Page
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
© Munters Corporation, May 2021
4QM1108r1
1.1 Parts List
Unpacking the Equipment 1.
[A]
[B]
Each CX24P1/CX24P3/CX24PW1/CX24PW3 Fan includes:
1 – Direct Drive Circulation Fan
Each CX24P1G/CX24P3G/CX24PW1G/CX24PW3G
Fan with Guard includes:
1 – Direct Drive Circulation Fan
1 – Guard, Inlet/Outlet Pair, PWDCTD
1 – Hardware Package as follows:
HP1246 – Fan with Guard
ID Qty. Cat. No. Description
[A] 4 KS0650 1⁄4”-20 x ⁷⁄₈” 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 your freight carrier. Fan is shipped complete with all accessories.
5© Munters Corporation, May 2021 QM1108r1
1.2 Fan Dimensions
Unpacking the EquipmentChapter 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
© Munters Corporation, May 2021
6QM1108r1
Installation Instructions 2.
2.1 Fan Installation
Figure 1A
Chain (not provided)
Step 1
For Horizontal Airflow attach chain to 2 of the Eye Bolts on the fan and then hang the fan from truss.
See Figure 1A.
Chain and hanging hardware not provided. If it is desired to pull the fan up out of the
way when not in use for cleaning, then attach a cable or 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 is
recommended to install the CX24 Fan at a
location far enough from heaters that will
give a maximum temperature of 150°F.
This should be approximately 2-3 ft. from
the heater.
IMPORTANT
!
7 Munters Corporation, May 2021 QM1108r1
Installation InstructionsChapter 2
Step 3
The Inlet Guard is the one with the large inner hole to go over the motor. With the eyelets on the guard
pointing into the fan slip the eyelets over the shaft of the Eye Bolts and fasten 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 goes on the outside.
See Figure 4.
Outlet Guard
Nut [B]
Bolt [A]
Nut [B]
Bolt [A]
© Munters Corporation, May 2021
8QM1108r1
Electrical Wiring 3.
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 diagram
on 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 5A. See form QM1400 for 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 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
recommended.
NOTE: A safety cut-off switch should be located adjacent to each fan.
Figure 5A
Single Phase - Motor Overload Protection with Disconnect
(SY2000 or Equivalent)
120 or 240 VAC
Power Supply for
Fan
L1 (H)
L2 (N)
G
T1 (H)
T2 (N)
G
120 or 240 VAC
Power Out
to Fan
L1 (H)
L2 (N)
T1 (H)
T2 (N)
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.
Three Phase
Power Supply for
Fan
L1
L2
G
T1
T2
G
Three Phase
Power Out
to Fan Motor
L1
L2
T1
T2
L3 T3
L3 T3
Figure 5B
Three Phase - Motor Overload Protection with Disconnect
Safety cut-off
switch
Motor Starter
Circuit Breaker Switch
9 Munters Corporation, May 2021 QM1108r1
Three Phase Fans:
1) The use of a quality frequency drive and the installation of line reactors is recommended to
reduce voltage spikes and harmonic distortion.
2) Minimum operating frequency 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:
Electrical WiringChapter 3
© Munters Corporation, May 2021
10 QM1108r1
Operation 4.
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.
ADJUSTMENTS: Set the fan control to the temperature shown on your ventilations 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 Power
Before Servicing
WARNING
!
Moving Parts, Disconnect
Power Before Servicing.
WARNING
!
Do Not Power Wash
Electrical Devices.
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