Munters ATLAS 74 74 Inch Exhaust Fan Instruction Manual

ATLAS 74 74 Inch Exhaust Fan
Instruction Manual

ATLAS 74 74 Inch Exhaust Fan

Instructions for Use and Maintenance

Thank You:
Thank you for purchasing an ATLAS 74 Fan. Minters 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 Minters 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 Minters 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.
1.1 Parts List
Each Fan includes:

• 1 – Belt Drive Fan
• 4 – Cone Sections, PL
• 2 – Guard Sections, CTD
• 1 – Shutter
• 2 – Shutter Wind Bracket, GZ
• 1 – Shutter Wind Pipe, GZ
• 1 – Hardware Package as follows:

HP1162– Atlas 74

WARNING:
A Munters Lift Kit, FH1890, is required for installation of Atlas Fan.  One Lift Kit may be used for multiple Atlas Fans. Failure to use the Munters Lift Kit may result in damage to fan. DO NOT use chains to lift fan for installation. Damage from chains will not be covered under warranty.
Each FH1890 Lift Bracket includes:

• 1 – Left Lift Bracket, PWDCTD
• 1 – Right Lift Bracket, PWDCTD
• 1 – Hardware Package as follows:

HP1891 – for FH1890

1.2 Fan Dimensions
Fan Specifi cations:

1.3 Fan Spacing
When determining fan spacing/fan layout, keep in mind that the fan requires ¼ ” clear space from the mounging flange so the Shutter Clips have room to rotate, to allow the shutter to be removed and reinstalled in the fan without interference. Also, the sides of the fan also require 3¾ ” clearance for the Wind Kit Bracket to be installed. If the fans are to be installed side-by-side with the Wind Kit Brackets adjacent to each other, the minimum fan spacing is 98″ Center-to-Center. See Figure Below.![Munters ATLAS 74 74 Inch Exhaust Fan

• Fan Spacing](https://manuals.plus/wp-content/uploads/2023/10/Munters- ATLAS-74-74-Inch-Exhaust-Fan-Fan-Spacing.jpg)If the fans are to be installed closer, then the Wind Kit Brakcet for one fan should be offset 6″ up or down from the previous fan, then the minimum fan spacing is 93″ Center-to-Center. See Figure Below.

Installation Instructions

2.1 Installation
Step 1
Construct the framed opening to correct size according to the Chart on Page 5. The frame should be constructed of 4×4 Treated Posts or double 2x Treated Studs. 2 fans can fit between Columns that are 20’O.C., and 3 fans can fit between Columns that are 25’ or 30’ O.C. See Figure 1A, 1B and 1C. WARNING:
A Munters Lift Kit, FH1890, is required for installation of Atlas Fan. One Lift Kit may be used for multiple Atlas Fans. Failure to use the Munters Lift Kit may result in damage to fan. DO NOT use chains to lift fan for installation. Damage from chains will not be covered under warranty.
Step 2
A Lift Bracket Kit is available to be able to lift fan into the framed opening. Attach each Lift Bracket to Bearing Bracket and Strut using (4) Bolts [D] and Nuts [E]. See Figure 2. Once fan has been installed in wall Lift Bracket can be removed and installed in next fan for installation. Step 3A
Using Munters Lift Kit, FH1890, insert fan into the framed opening from the inside. While holding fan tight to framing, fasten top of fan with (5) ¼ ” x 1.5″L. minimum Mounting Screw/Bolt (not provided). See Figure 3A.
Next, fasten bottom of fan, then both sides with (5) ¼ ” x 1.5″L. minimum Mounting Screw/Bolt (not provided) per side. Install flashing around opening tight to fan and caulk around fan to seal. Note:
Once Fan is installed in wall, remove Lifting Brackets from Fan and install in next Fan for installation.
Step 3B
If fan needs to be mounted, so that shutter does not stick into building then frame fan as shown in Figure 3B. Top and sides require 4″ minimum and bottom requires 2″ minimum. Note:
Once Fan is installed in wall, remove Lifting Brackets from Fan and install in next Fan for installation.
2.2 Cone Installation
Step 4
Place all 4 cone sections on a flat surface with tabs from one facing slots of the next. See Figure 4A. Curl up tab end of first cone section and insert tabs up into slots in the next cone section. A mallet may be needed to seat slots over tabs completely. See Figure 4B. Repeat this step until all 4 cone sections are connected and laying flat.![Munters ATLAS 74 74 Inch Exhaust Fan

• Cone Installation](https://manuals.plus/wp-content/uploads/2023/10/Munters- ATLAS-74-74-Inch-Exhaust-Fan-Cone-Installation.jpg) Step 5A
  Fasten each of the joints in the single outer hole using (1) Bolt [A] and Nut [B], with the nut on the side with the tabs. At the inner pair of holes of each joint fasten using (1) Bolt [A] and Nut [B] with the bolt head on the side with the tabs. See Figure 5A. Step 5B
  Stand cone sections on end and curl ends around to form cone so that the nuts are outside and tabs on inside. Insert remaining tabs into slots so tabs are inside cone and fasten final joint using (1) Bolt [A] and Nut [B], with nut on inside of cone. At the inner pair of holes fasten using (1) Bolt [A] and Nut [B] with bolt head on inside of cone. See Figure 5B. Leave all bolts and nuts loose at this time. Step 6
  Install cone onto fan by putting cone over fan orifice and line up inner holes of cone with holes in fan orifice. Fasten cone to fan orifice using (12) Bolt [A], Washer [C] and Nut [B] with bolt and washer on inside of fan orifice and nut on outside of cone. See Figure 6. Step 7
  Find the 2 Guard Sections and line the 2 of them up with the eyelets both facing the same direction. Then secure the guard sections together by wrapping the wire loop on each guard section around center wire of opposite guard section. See Figure 7. Step 8
  Insert guard into cone with the eyelets facing you. Install eyelets over (4) Bolts already installed at joints in cone and fasten with Nut [B]. Secure (8) remaining eyelets using Bolt [A] and Nut [B]. See Figure 8. 2.3 PT Shutter Installation
  Step 9
  Insert PT Shutter into fan by sliding the bottom flange of shutter into bottom shutter clips and pressing shutter inward. See Figure 9.
  Note:
  PT Shutter extends into room 25 ⁄16” from back of fan. Step 10
  Fasten shutter in place by rotating the side and top shutter clips over the shutter flanges. See Figure 10. 2.4 Shutter Wind Kit Installation
  Step 11
  Mount one Wind Kit Bracket on each side of fan, 3′-3″ above the bottom flange of fan. The opening in the ‘U’ slot should be facing up and each Bracket should be mounted in same direction. See Figure 11A. Fasten Brackets in place using (2) Lag Screws (not provided). See Figure 11B. Step 12
  Slide the Wind Kit Pipe into the hole in the Left Wind Kit Bracket until it stops at the other side of the Bracket and set Pipe down into slot in opposite Bracket. See Figure 12A. For the completed Wind Kit installation See Figure 12B.

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 13A. 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 13B.
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.

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.
3.1 Recommended Wire Routing:
As the power cable exits the back of 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 the pulley or belt. See Figure 14.
Then run the cable out the drain hole to the circuit breaker or control panel. (Continued on next page). 

Operation

4.1 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.
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).

Maintenance

5.1 Maintenance
The following inspection and cleaning procedures should be performed monthly:
Tools Needed for Maintenance: wrenches: 10mm, 13mm, 17mm, 27mm

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 shutter blades and frame so that blades 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

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: Check condition of belt, if worn, replace belt. If belt is in good condition then make sure the tensioner is in the correct position. Looking from the inlet of the fan, the correct position of the tensioner is approximately the 2 o’clock position. See Figure 15A.
   To adjust the tensioner, loosen the 10mm bolt fastening the tensioner to the motor base (using 17mm end wrench) to allow tensioner arm to rotate. Place a 27mm (1 1⁄16”) wrench onto the hex on tensioner. Turn the wrench clockwise until the Alignment Mark is at Mark 4 on the tensioner arm. See Figure 15B. Hold tensioner at this setting and tighten the 10mm bolt to 40 ft. lbs. [54 N-m] torque.
   

Winterizing

6.1 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.
6.2 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 16, or snow guards may be placed on the roof, See Figure 17. *Snow Guard Suppliers

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

7.1 Troubleshooting

2. Blown fuse or open circuit breaker
3. Propeller blade contacting fan housing
4. Fan control defective| 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
Fan Operating Insufficient Airflow| 1. Shutter jammed or dirty
2. Guard dirty
3. Frequency drive improperly adjusted
4. Incorrect Belt Tension/worn belt| 1. Unjam and clean shutter
2. Clean guard
3. See operation, Step 2 for adjustments guidelines
4. See Maintenance Section, Belt Tensioning
Excessive Noise| 1. Propeller blade contacting fan housing
2. Motor bearing or shaft bearing defective
3. Frequency drive improperly adjusted| 1. Sand fan housing to remove high spot
2. Repair or replace motor or shaft bearings
3. See operation, Step 2 for adjustments guidelines
Excessive Vibration| 1. Motor loose on mount
2. Propeller damaged| 1. Tighten fasteners
2. Replace propeller
3. Repair or replace motor or propeller shaft

Exploded View

Catalog No.

• Contact office for replacement part numbers for your fan configuration.

Australia Minters Pty Limited, Phone +61 2 6025 6422, Brazil Minters Brazil Industrial  Comercio Ltda, Phone +55 41 3317 5050, Canada/US Minters Corporation Lansing, MI Phone +1 517 676 7070, China Minters Air Treatment Equipment (Beijing) Co. Ltd, Phone +86 10 80 481 121, Denmark Minters A/S, Phone +45 9862 3311, India Minters India, Phone +91 20 3052 2520, Indonesia Minters, Phone +62 818 739 235, Italy Minters Italy S.p.A., Chiusavecchia, Phone +39 0183 52 11, Japan Minters K.K., Phone +81 3 5970 0021, Korea Minters Korea Co. Ltd., Phone +82 2 761 8701, Mexico Minters Mexico, Phone +52 818 262 54 00, Russia Minters AB, Phone +7 812 448 5740, Singapore Minters Pte Ltd., Phone +65 744 6828, South Africa and Sub-Sahara Countries Minters (Pty) Ltd., Phone +27 11 997 2000, Spain Minters Spain S.A., Phone +34 91 640 09 02, Sweden Minters AB, Phone +46 8 626 63 00, Thailand Minters Co. Ltd., Phone +66 2 642 2670, Turkey Minters Form Industry Sistemleri A.Ş, Phone +90 322 231 1338, USA Munters Corporation Lansing, MI Phone +1 517 676 7070, Vietnam Minters Vietnam, Phone +84 8 3825 6838, Export & Other countries Minters Italy S.p.A., Chiusavecchia Phone +39 0183 52 11

Minters Europe AB, Isafjordsgatan 1, P.O. Box 1150, SE-164 26 Krista, Sweden.
Phone +46 08 626 63 00,
Fax +46 8 754 56 66.
Minters Corporation 2691 Ena Drive Lansing, MI 48917 U.S.A.
Phone +1 800-227-2376,
Fax +1 517-676-7078
© Munters Corporation, June 2023
www.munters.us

References

• Alpine SnowGuards
• Metal Building Accessories in Longview, TX | LMCurbs
• Industrial Dehumidifier & Dehumidification Systems Manufacturer | Munters
• Polar Blox Polycarbonate Snow Guards
• Snow Guards | Snow Retention Products | SnoBlox-Snojax

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