Munters AT14F Classic Fans Direct Drive Instruction Manual

: June 14, 2024
: Munters

Table of Contents

Thank You!
Warranty
Unpacking the Equipment
- Parts List
- Fan Dimensions
Installation Instructions
- Install
- Shutter Installation
Electrical Wiring
- Recommended Wire Routing
Operation
Maintenance
Winterizing
Troubleshooting
Exploded View
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Munters AT14F Classic Fans Direct Drive

Thank You!

Thank you for purchasing a Munters Classic Fan Direct Drive. 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

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.

Parts List

Each Fan includes:

1 – Direct Drive Fan
1 – Hardware Package as follows:

HP1076 – 14” – 24” Fiberglass Fans

ID	Qty	Cat. No.	Description
[A]	8	KS2105	#14 x 1.5” Lag Screw, SS

HP1008 – 16” – 24” Galvanized Fans
[B]| 8| KS2463| ¹⁄₄” x 1.5” Lag Screw, ZP
[C]| 8| KW3001| ¹⁄₄” Flat Washer, ZP

Fan Dimensions

Fan Specifications:

Hertz: 60 50 – 60
Voltage: 115/230VAC or 190 – 208-230/380 – 460VAC
Phase: 1 or 3
3 Phase fans only available for AT24

14” – 24” Fiberglass Fans

16” – 24” Galvanized Fans

CAT. NO.| FAN DIA.| NO. OF BLADES| A| B| C| D| E – Dia. (O.D.)| WALL OPENING
(I.D., framed)
---|---|---|---|---|---|---|---|---
AT14F| 14”| 7| 195⁄8”| 31⁄2”| 103⁄4”| 31⁄2”| 141⁄2”| 171⁄4”W| 171⁄4”H
AT16F| 16”| 4| 225⁄8”| 41⁄4”| 111⁄8”| 41⁄4”| 161⁄2”| 201⁄$”W| 201⁄4”H
AT16G| 16”| 4| 20”| 43⁄4”| 101⁄4”| 43⁄4”| 161⁄2”| 201⁄$”W| 201⁄4”H
AT18F| 18”| 5| 245⁄8”| 41⁄4”| 12”| 41⁄4”| 181⁄2”| 221⁄4”W| 221⁄4”W
AT18G| 18”| 5| 22”| 45⁄8”| 11″| 45⁄8”| 181⁄2”| 221⁄4”W| 221⁄4”W
AT24F| 24”| 4| 303⁄4”| 51⁄4”| 121⁄8”| 51⁄4”| 241⁄2”| 281⁄4”W| 281⁄4”H
AT24G| 24”| 4| 28”| 57⁄8”| 113⁄8”| 57⁄8”| 241⁄2”| 281⁄4”W| 281⁄4”H

Installation Instructions

Install

Step 1
Construct the framed opening to correct size according to the Chart on the previous page. See Figure 1 and 2.

Step 2
Insert fan into framed opening from outside and fasten in place using (8) Lag Screws [A] for Fiberglass Fans or (8) Lag Screws [B] and Washers [C] for Galvanized Fans. Flash and caulk around opening. See Figure 3.

Note:

Outlet of fan comes unguarded, it is recommended that a Munters Discharge Cone with Guard, a Fan Hood with Guard or a guard by others is installed on outlet of fan at this time.

Shutter Installation

Step 3
If a Shutter was purchased, install it into back of framed opening. See Figure 4. If optional Shutter Clip Kit (FH1192) was purchased, install now using hardware provided with kit. See Figure 4.

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 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 6A. 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 6B.
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.

Single Phase – Motor Overload Protection with Disconnect (SY2000 or Equivalent)

Three Phase – Motor Overload Protection with Disconnect

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.

Recommended Wire Routing

As the power cable exits the back of motor form a drip loop and then run power cable down along leg of motor mount and “Zip” tie the cable to leg to prevent cable from getting tangled. See Figure 7. Then run the cable out the drain hole to the circuit breaker or control panel. (Continued on next page).

Three Phase Fans:

The use of a quality frequency drive and the installation of line reactors is recommended to reduce voltage spikes and harmonic distortion.
Minimum operating frequency of 30 Hz.
Will require three pole contractors with overload protection (by others).

Operation

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| | | B| | | A| | | B|
---|---|---|---|---|---|---|---|---|---|---|---
CFM| RPM| | VOLTS| RPM| | VOLTS| RPM| | VOLTS| RPM| | VOLTS
100| —| | —| —| | —| 520| | 96| 520| | 96
120| 500| | 95| 500| | 95| 600| | 101| 600| | 101
150| 600| | 101| 600| | 101| 650| | 107| 640| | 107
200| 620| | 103| 630| | 103| 690| | 111| 700| | 110
300| 680| | 107| 690| | 106| 810| | 119| 810| | 118
400| 730| | 111| 750| | 110| 860| | 123| 870| | 123
500| 780| | 114| 810| | 114| 900| | 126| 920| | 126
600| 830| | 118| 870| | 117| 940| | 129| 970| | 130
800| 940| | 125| 980| | 127| 1020| | 135| 1060| | 136
1000| 1040| | 132| 1080| | 137| 1110| | 141| 1170| | 144
1200| 1140| | 139| 1220| | 149| 1220| | 149| 1290| | 152
1600| 1390| | 158| 1500| | 188| 1440| | 169| 1540| | 178
2000| 1650| | 223| —| | —| —| | —| —| | —
140| 500| | 100| 510| | 100| 610| | 101| 640| | 101
170| 580| | 101| 590| | 101| 640| | 103| 670| | 103
200| 630| | 102| 640| | 102| 680| | 104| 700| | 105
300| 660| | 104| 680| | 104| 750| | 108| 760| | 108
400| 700| | 106| 730| | 106| 810| | 112| 820| | 112
500| 740| | 109| 780| | 109| 880| | 116| 890| | 116
600| 770| | 111| 820| | 111| 940| | 119| 950| | 119
800| 840| | 115| 910| | 116| 980| | 124| 1020| | 124
1000| 910| | 120| 1000| | 120| 1030| | 127| 1090| | 129
1250| 980| | 125| 1070| | 128| 1080| | 132| 1160| | 135
1500| 1050| | 131| 1140| | 136| 1130| | 137| 1240| | 141
1750| 1110| | 136| 1230| | 144| 1190| | 142| 1340| | 148
2000| 1190| | 142| 1330| | 152| 1270| | 149| 1450| | 155
2500| 1360| | 160| 1580| | 205| 1420| | 165| 1620| | 208
3000| 1560| | 198| —| | —| 1580| | 207| —| | —
3250| 1660| | 227| —| | —| 1670| | 228| —| | —
A = Fan with cone & shutter| B = Fan with hood & shutter
---|---
| 0.02” Static Pressure| 0.05” Static Pressure
A| B| A| B
| CFM| RPM| VOLTS| RPM| VOLTS| RPM| VOLTS| RPM| VOLTS
18″ Fans| 300| —| —| —| —| —| —| 540| 100
400| —| —| —| —| —| —| 580| 103
500| —| —| 500| 100| 580| 103| 610| 105
600| 560| 101| 580| 102| 615| 105| 650| 107
700| 600| 102| 620| 103| 640| 108| 680| 110
800| 630| 104| 650| 105| 680| 110| 720| 114
1000| 670| 107| 700| 109| 730| 116| 780| 119
1250| 720| 111| 760| 114| 800| 121| 850| 123
1500| 780| 115| 820| 118| 850| 124| 910| 127
1750| 820| 119| 890| 123| 910| 128| 970| 131
2000| 890| 124| 970| 128| 960| 131| 1030| 135
2500| 1020| 133| 1120| 139| 1060| 138| 1170| 146
3000| 1160| 143| 1310| 155| 1210| 150| 1350| 162
3500| 1330| 158| 1480| 190| 1370| 168| 1520| 202
4000| 1490| 193| —| —| 1530| 204| —| —
4250| 1580| 213| —| —| 1610| 221| —| —
24″ Fans| 1000| —| —| —| —| —| —| 490| 115
1250| 490| 115| 500| 116| 495| 116| 510| 117
1500| 505| 116| 515| 117| 505| 117| 530| 120
1750| 515| 117| 530| 120| 515| 119| 560| 124
2000| 530| 118| 550| 122| 530| 121| 580| 127
2250| 540| 119| 570| 125| 550| 124| 610| 131
2500| 560| 121| 600| 128| 580| 127| 640| 134
2750| 580| 124| 630| 131| 620| 130| 680| 138
3000| 610| 128| 660| 135| 650| 134| 710| 142
3500| 670| 133| 730| 144| 710| 141| 770| 152
4000| 710| 139| 780| 154| 770| 150| 840| 164
4500| 790| 150| 870| 172| 880| 159| 920| 182
5000| 860| 160| 960| 198| 900| 174| 1000| 214
5500| 940| 178| 1040| 230| 980| 196| —| —
6000| 1020| 205| —| —| 1050| 225| —| —
6350| 1070| 226| —| —| —| —| —| —

Maintenance

The following inspection and cleaning procedures should be performed monthly:

INSPECT PROPELLER: Check that propeller is secure on motor shaft and that there are no signs of damage. The blades are of a self-cleaning design and should not require maintenance.
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 shutter blades and frame so that shutter opens and closes 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.
CHECK FASTENERS: For safety, all fasteners should be inspected 1 month after initial operation and yearly thereafter. Tighten any loose connections.
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!

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.

Winter Weather Protection
To prevent cone or fan damage from snow or ice sliding off building roof, weather protection must be provided. A weather shelter may be constructed to cover the entire fan, See Figure 8, or snow guards may be placed on the roof, See Figure 9.

*Snow Guard Suppliers

Company Name	Phone No.	Fax No.	Web Site
Snojax, Inc.	800-766-5291
717-697-2452

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

SYMPTOM		POSSIBLE CAUSES		CORRECTIVE ACTION
Fan Not Operating	1.	Fan control set above room temperature	1.	Set to a

Exploded View

Item| Catalog No . F i be r gla ss Fan| Cata l og N o . Gal v anized Fan| Descr i p tion| Qty.
---|---|---|---|---
l| FH3014| –| Orifice Panel, 14″ Classic Fa n with Labels| l
FH3016| FH3 l l 6| Orifice Panel, l 6″ Classic Fan with Labels| l
FH3018| FH3 1 18| Orifice Panel, l 8″ Classic Fa n with Labels| l
FH3024| FH3124| Orifice Panel, 24″ Classic Fan with Labels| l
2| FP1031SS| =p1031ss| Propeller, l 4″DD, 7-Blade, Set Screws, AL| l
| FP1038SS| =Pl038SS| Propeller, l 6″DD, 4-Blade, Set Screws, AL| l
FP1008SS| =p1008ss| Propeller, l 8″DD, 5-Blade, Set Screws, AL| l
FP1033SS| =Pl033SS| Propeller, 24″DD, 4-Blade, Set Screws, AL| 1
3| FH 10 0 8| FH 10 0 8| 14″ Fan, Motor Mount, PVC Coated| l
FH1009| FH 10 09| l 6″/18″ Fan, Motor Mount, PVC Coated| l
FHl0l0| FH 10 10| 24″ Fan, Motor Mount, PVC Coated| l
4| FH1 25 8| –| Fan Support Clip, AL| 4
5| FM 1010| FM1010| 14″ DD, Motor, 1/a HP, 16 25 RPM, 48 Fr., 1ph ., l l 5/230V| l
FM1043| FM10 43| 16 ” DD, Motor, 1/..i HP, 1625 RPM, 48 Fr., l ph., l l 5/230V| l
FM1009| FM1009| 18″ DD, Motor, 1/3 HP, 1625 RPM, 48 Fr., 1ph ., l l 5/230V| l
FM1 108C| =M110 8C| 24″ DD, Motor w/ Cap., 1/J HP, l 075 RPM, 48 Fr., l p h., l l 5/230V| l
FM1074| FM1074| 24″ DD, Motor, 1/3 HP, 1140 RPM, 48 Fr., 3 ph., 230/460V| l
6| KS1029| KS1 029| 5/16″-1 8 x l.75″ Hex Head Bolt, SS| l
7| KW3004| KW 30 04| 5/1611 Narrow Type-A Flat Washer, SS| 2
8| KN0704| KN0704| 5/16″-l 8 Hex, Serrated Flange Nut, SS| l

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

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