Munters AX Series User manual

1© Munters Corporation, December 2019 QM1059r6
Instruction Manual
AX and GB Series 36" Tilt Fan
with Galvanized Cone
Models: AX36Tx • AX36xTx • GB36Tx • GB36xTx
AX and GB
Series
36” Tilt Fans with
Galvanized Cone

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Thank You:
Thank you for purchasing a AX/GB Series Tilt 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
Munters Corporation office at 1-800-227-2376 or by e-mail at [email protected].
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.
AX and GB Series 36" Tilt Fan with Cone
Instructions for Use and Maintenance

3© Munters Corporation, December 2019 QM1059r6
Index
Chapters Page
1. Unpacking the Equipment 4
1.1 Parts List 4
1.2 Dimensions 5
2. Installation Instructions 6
3. Electrical Wiring 9
3.1 Electrical Wiring 9
3.2 Recommended Wire Routing 10
4. Operation 11
5. Maintenance 12-13
6. Winterizing 14
7. Troubleshooting 15
8. Exploded View and Parts List 16-17

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Unpacking the Equipment 1.
Each Crate Includes:
1 - 36” Belt Drive or Direct Drive fan
4 - Cone Sections
4 - Cone Support Brackets
1 - Cone Guard
1 - Shutter
1 - Hardware Package (HP1098):
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 customers responsibility and
should be reported immediately to your freight carrier.
1.1 Parts List
HP1098 – Hardware Package for 36" Tilt Fan
ID Qty. Cat. No. Description
[A] 12 KS2463 ¹⁄₄" x 1.5" Hex Lag Screw, ZP
[B] 16 KS1153 ¹⁄₄"-20 x ¹⁄₂" SRTD HX Flange Head Bolt, ZP
[C] 12 KS1151 ¹⁄₄"-20 x ³⁄₄" SRTD HX Flange Head Bolt, ZP
[D] 28 KN0730 ¹⁄₄"-20 SRTD HX Flange Nut, ZP
[E] 8 KS2260 ¹⁄₄"-20 x ³⁄₄" SRTD HX Washer TEK Screw, ZP
A
B
C
D
E

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1.2 Fan Dimensions
Fan Specifications: 60Hz shown (50Hz available)
Power: 120/240 VAC or 208-240/480 VAC
Phase: 1 or 3
Cat. No.
Fan
Dia. A B C D - Dia. E F G Wall Openings ( I.D., Framed)
AX/GB36T 36” 45¹⁄₄”W. x 453⁄4”H. 6” 123⁄16” 43¹⁄₂” 44³⁄₄” 46³⁄₈” 19⁵⁄₁₆” 43”W. x 45”H.
AX/GB365T 36” 45¹⁄₄”W. x 453⁄4”H. 6” 123⁄16” 43¹⁄₂” 44³⁄₄” 46³⁄₈” 19⁵⁄₁₆” 43”W. x 45”H.
Dimensions:
D - Dia.
F
Wall Opening
E
Unpacking the EquipmentChapter 1
A
A
B
C
C
Wall Opening
Wall OpeningG
9"
Guard

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2.1 Installation
Installation Instructions 2.
Framing
Wall Opening
(See chart)
Figure 1
See Clearance Notes
to right Wall Opening
(See chart)
Ceiling
Recommended Clearance*
•Fan with outlet guard: maintain 8"
minimum clearance on all sides
•Fan with discharge cone: maintain 12"
minimum clearance on all sides
Step 1
Construct a framed opening to correct size according to
Wall Opening listed in chart on previous page and your
fan size. See Figure 1.
Step 2
Insert fan into framed opening from the inside. See Figure 2.
Figure 2

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Installation InstructionsChapter 2
Step 3
Confirm that housing inside dimensions match those shown in Figure 3A. Then secure housing to framing
using (12) Lag Screws [A]. See Figure 3B.
Lag Screw [A]
42"
42"
Figure 3B
Figure 3A
NOTE:
This is NOT the
Wall Opening Size
Step 4
Proceed to the installation instructions for the Discharge Cone, Form QM1023. Once Discharge Cone is
completed, proceed to Electrical Wiring Section before the Shutter Installation.
Step 5
Add flashing and/or caulk around completed housing on exterior side of building wall.
Step 6
Make electrical connections to fan motor per instructions provided with fan or as shown on motor.

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Installation InstructionsChapter 2
Step 7
Insert shutter into fan by sliding the bottom flange of shutter into bottom shutter clips and pressing shutter
inward, See Figure 4A. Fasten shutter in place by rotating the side and top shutter clips over the shutter
flanges. See Figure 4B.
Bottom Shutter
Clips
Shutter
Figure 4A
Figure 4B

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Electrical Wiring 3.
KEY:
L1 = Line 1
L2 = Line 2
L3 = Line 3
H = Hot
N = Neutral
G = Ground
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)
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
Figure 5B
Three Phase - Motor Overload Protection with Disconnect
T3
Motor Starter Safety Cut-off Switch
Information in parenthesis refers to 120 VAC control.
Note::
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 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 5A .See 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. 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.
3.1 Electrical Wiring

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Electrical WiringChapter 3
Step 7
As the power cable exits the back of the motor, form a Drip Loop and then run power cable down along
strut and "zip tie" the cable to strut to prevent cable from getting tangled in pulley or belt. See Figure 6.
Then run cable out the drain hole to the circuit breaker or control panel.
3.2 Recommended Wire Routing
Zip Tie
Drip Loop
Figure 6

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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.
A = Fan with cone & shutter B = Fan with hood & shutter
CFM 0.02” Static Pressure 0.05” Static Pressure
A B A B
RPM VOLTS RPM VOLTS RPM VOLTS RPM VOLTS
36” Fans
750 — — — — — — 350 121
1000 — — — — 370 123 390 128
1250 330 117 330 119 390 127 410 130
1500 360 123 360 125 410 131 430 134
1750 370 125 370 127 425 136 440 136
2000 380 128 390 130 450 137 460 139
2500 410 131 420 135 470 141 480 143
3000 430 135 440 138 490 145 500 146
4000 470 142 480 145 520 149 530 151
5000 520 148 530 152 560 156 570 158
6000 560 154 580 159 590 161 600 162
7000 610 159 640 165 640 166 680 172
8000 650 166 700 173 690 172 750 179
9000 710 172 760 185 740 178 810 209
10,000 770 179 840 225 790 195 — —
11,300 840 223 — — — — — —
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 contactors with overload protection (by others).
4) 36" Direct Drive, 3 Phase fan is not suitable for frequency drive.
4.1 Operation
WARNING
!
Disconnect Power
Before Servicing
WARNING
!
Moving Parts, Disconnect
Power Before Servicing.
WARNING
!
Moving Parts: Disconnect
Power Before Servicing.
WARNING
!
Do Not Power Wash
Electrical Devices.

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Maintenance 5.
5.1 Maintenance
The following inspection and cleaning procedures should be performed monthly:
Tools Needed for Maintenance:
wrenches: 17mm, 27mm, ⁵⁄₃₂" Allen
1) INSPECT PROPELLER: Check that propeller is secure on prop shaft or motor shaft
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 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.
• SHUTTER: 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 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 be secure and in good condition. Remove any dust
build-up from control case and sensor using a soft brush or cloth. NEVER CLEAN
ELECTRICAL EQUIPMENT WITH A PRESSURE WASHER!
5) GREASE BEARINGS: Grease bearings every 4-6 months.
Use no more than 2 shots when greasing fan.
• A premium non-water based grease is recommended:
- Shell Alvania #2 - Mobil Mobilux #2
- Exxon Unirex N2 - Texaco Premium RB
- Mobil 532 - Texaco Multifak #2
WARNING
!
Disconnect Power
Before Servicing
WARNING
!
Moving Parts, Disconnect
Power Before Servicing.
WARNING
!
Moving Parts: Disconnect
Power Before Servicing.
WARNING
!
Do Not Power Wash
Electrical Devices.

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MaintenanceChapter 5
Motor
Pulley
Straight Edge
Belt
Idler
Pulley
Propeller
Pulley
Smooth
Pulley
Grooved
Pulley
6) CHECK DRIVE ALIGNMENT: Check to make sure the belt is
centered on the idler pulley, then use a straight edge to check
the alignment of the drive pulleys. If an adjustment is needed,
remove the belt, then loosen the set screw in one pulley and move
it. Remember to tighten the set screw after making an adjustment.
Drive alignment is very important for long belt life and proper
operation.
7) CHECKING PULLEYS: Roll the belt off and look at both pulleys.
If the 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.
8) BELT TENSIONING:
All belts must be checked for proper tension after the first 3 days of
fan operation and every 4-6 months thereafter.
Solid Belt
To adjust the belt tensioner to the proper setting, loosen 10 mm
bolt fastening tensioner to bracket (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.
Turn wrench counterclockwise until the single mark on base of the
belt tensioner is aligned with mark 4 on the tensioner arm. Hold
tensioner at this setting and tighten the 10mm bolt to 40 ft. lbs.
[54 N-m] torque.
AeroLink Belt
• Roll the belt off the pulleys by forcing it sideways off the
larger pulley as you turn the drive by hand.
• 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, the belt
should become taut in the position shown below.
• If the belt becomes taut before reaching the position shown,
add one link and try again.
• If the belt is loose when in the position shown, remove one
link and try again.
Alignment
Mark
Hex
Mark 4

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Winterizing 6.
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.
6.1 Winterizing

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Troubleshooting 7.
Fan Operating-
Insufcient
Air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. Shutter jammed
2. Guard dirty
3. Frequency drive improperly adjusted
4. Incorrect Belt Tension/worn belt
1. Propeller blade contacting fan housing
2. Motor bearing or shaft bearing defective
3. Frequency drive improperly adjusted
4. Variable speed control defective
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 adjustments guidelines
2. Clean guard
3. See operation, Step 2 for adjustments guidelines
4. See Maintenance Section, Belt Tensioning
1. Adjust bearing position to realign propeller
2. Repair or replace motor or shaft bearings
3. See operation, Step 2 for adjustments guidelines
4. Repair or replace control
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. 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.
WARNING
!
Moving Parts: Disconnect
Power Before Servicing.

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Exploded View 8.

17© Munters Corporation, December 2019 QM1059r6
Catalog No.
Item GB36Tx AX36Tx GB365Tx AX365Tx Part Name/Description QTY
1 FH3136 FH1248 FH1248 FH1248 Orifice Panel, GZ 1
2 FH2278 FH2278 FH2278 FH2278 Top Housing Panel, GZ 1
4 FH2276 FH2276 FH2276 FH2276 Left Housing Panel, GZ 1
5 FH2279 FH2279 FH2279 FH2279 Bottom Housing Panel, GZ 1
6 FH2277 FH2277 FH2277 FH2277 Right Housing Panel, GZ 1
7 FP1041
---
---
FP1013SS
FP1041
---
---
FP1014SS
Propeller, 3 - Blade, GZ
Propeller, 3 - Blade, AL
1
1
8 FH2094
---
---
FH2436
---
FH2436
---
FH2436
Angle Style Strut, 36"GB, GZ
Tube Strut, GZ
2
2
9 ---
---
---
---
FH2083*
FH1470*
FH2083*
FH1470*
Link Belt
V-Belt, A-Section
1
1
10 --- --- FH2003* FH2031* Motor Sheave, CI 1
11 FM1048* FM1022* FM1011* FM1022* Motor 1
12 --- FH2825 FH2815 FH2815 Bracket, Motor Support, CTD-GZ 1
13 ---
---
---
---
---
---
FH2402K
FH2406
FH2439
FH2402K
FH2406
FH2439
Belt Tensioner Assembly with 3" idler pulley
3" idler pulley only, with bolt
Tensioner Arm only, AL
1
1
1
14 --- --- FH2505 FH2505 Mounting Bracket for Belt Tensioner, CTD-GZ 1
15 --- --- FH2057 FH2057 Bearing, 1" Bore x 1.44"CL, CI Holder 2
16 --- --- FH2815 FH2815 Bracket, Bearing Mount, GZ 1
17 --- --- FH2086 FH2101 Shaft, STEEL 1
18 --- --- FH2091* FH2033* Propeller Sheave, CI 1
19 FH2123 FH2123 FH2123 FH2123 Shutter Support Bracket, GZ 2
20 FH2119 FH2119 FH2119 FH2119 Shutter Clip, Right, SS 2
21 FH2117 FH2117 FH2117 FH2117 Shutter Clip, Left, SS 2
22 PZ36 PZ36 PZ36 PZ36 Shutter, All Plastic 1
23 FH2130 FH2130 FH2130 FH2130 Cone Support Bracket, GC type, GZ 4
24 FH4236 FH4236 FH4236 FH4236 Discharge Cone, (1) Section, GZ 4
25 FH1336 FH1336 FH1336 FH1336 Guard Kit, 365FC/36GC Cone, PVC CTD 1
* Contact office for replacement part numbers for your fan configuration.
Parts ListChapter 8

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Munters Europe AB, Isafjordsgatan 1, P.O. Box 1150, SE-164 26 Kista, Sweden. Phone [phone], Fax [phone].
Munters Corporation 2691 Ena Drive Lansing, MI 48917 U.S.A. Phone [phone], Fax [phone]
www.munters.us
Australia Munters Pty Limited, Phone [phone], Brazil Munters Brasil Industria e Comercio Ltda, Phone [phone], Canada/US Munters
Corporation Lansing, MI Phone [phone], China Munters Air Treatment Equipment (Beijing) Co. Ltd, Phone [phone], Denmark Munters A/S,
Phone [phone], India Munters India, Phone [phone], Indonesia Munters, Phone [phone], Italy Munters Italy S.p.A., Chiusavecchia,
Phone [phone], Japan Munters K.K., Phone [phone], Korea Munters Korea Co. Ltd., Phone [phone], Mexico Munters Mexico, Phone
[phone], Russia Munters AB, Phone [phone], Singapore Munters Pte Ltd., Phone [phone], South Africa and Sub-Sahara Countries
Munters (Pty) Ltd., Phone [phone], Spain Munters Spain S.A., Phone [phone], Sweden Munters AB, Phone [phone], Thailand
Munters Co. Ltd., Phone [phone], Turkey Munters Form Endüstri Sistemleri A.Ş, Phone [phone], USA Munters Corporation Lansing, MI Phone
[phone], Vietnam Munters Vietnam, Phone [phone], Export & Other countries Munters Italy S.p.A., Chiusavecchia Phone [phone]
AX/GB Series Tilt Fans are developed and produced by Munters Corporation, Lansing, Michigan U.S.A. 1-800-227-2376