Munters ATLAS 74 Manuel utilisateur
1© Munters Corporation, July 2021 QM1095r1
Instruction Manual
ATLAS 74 Fan
Models: ATS743F3CT-E • ATS743F3CT-P
Munters
ATLAS 74
74” Exhaust Fan
© Munters Corporation, July 2021
2QM1095r1
Munters ATLAS 74 Fan
Instructions for Use and Maintenance
Thank You:
Thank you for purchasing an ATLAS 74 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, July 2021 QM1095r1
Index
Chapters Page
1. Unpacking the Equipment 4
1.1 Parts List 4
1.2 Fan Dimensions 5
1.3 Fan Spacing 6-7
2. Installation Instructions 8-12
2.1 Installation 8
2.2 Cone Installation 11
2.3 PT Shutter 14
2.4 Shutter Wind Kit 15-16
3. Electrical Wiring 17
4. Operation 19
5. Maintenance 20-21
6. Winterizing 22
6.1 Winterizing 22
6.2 Winter Weather Protection 22
7. Troubleshooting 23
8. Exploded View and Parts List 24-25
© Munters Corporation, July 2021
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1.1 Parts List
Unpacking the Equipment 1.
[A]
[B]
[C]
[D]
[E]
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
ID Qty. Cat. No. Description
[A] 28 KS1167 5⁄16”-18 x 1.25” SRTD Flange Head Bolt, ZP
[B] 32 KN0706 5⁄16”-18 SRTD Flange Nut, ZP
[C] 12 KW3011 5⁄16” x 1¼”O.D. Flat Washer, SS
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.
Each FH1890 Optional Lift Bracket includes:
1 – Left Lift Bracket, PWDCTD
1 – Right Lift Bracket, PWDCTD
1 – Hardware Package as follows:
HP1891 - for FH1890
ID Qty. Cat. No. Description
[D] 8 KS1180 3⁄8”-16 x 1.5” Flange Head Bolt, ZP
[E] 8 KN0705 3⁄8”-16 SRTD Flange Nut, ZP
5© Munters Corporation, July 2021 QM1095r1
1.2 Fan Dimensions
Unpacking the EquipmentChapter 1
Fan Specifications:
Hertz: 60
Voltage: 208-240/480VAC
Phase: 3
Hertz: 50
Voltage: 190/380VAC
Phase: 3
Weight: 400 lbs. [182 Kg]
FAN
DIA. A B C D E F G H J K-Dia. WALL OPENING
(I.D., framed)
74” 51⁄2”21
1⁄2”44
1⁄2” 89” 89” 137⁄8”35
3⁄4”60
3/16” 2⁵⁄₁₆” 853⁄8” 85”W 85”H
FRONT VIEWSIDE VIEW
H
F
J
K - Dia.
A
A
D
B
A
E
D
A
B
C
BB
C
G
4¾"
© Munters Corporation, July 2021
6QM1095r1
Unpacking the EquipmentChapter 1
1.3 Fan Spacing
Elevation View
Top View
98" Center-to-Center
98" Center-to-Center
¼"
3¾"
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.
7© Munters Corporation, July 2021 QM1095r1
Unpacking the EquipmentChapter 1
Elevation View
Top View
93" Center-to-Center
93" Center-to-Center
¼"
3¾"
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.
© Munters Corporation, July 2021
8QM1095r1
Installation Instructions 2.
2.1 Installation
Figure 1B
Figure 1A
4x4 Post or 2x Treated Framing
W.
(See Chart
on Page 5)
Step 1
Construct the framed opening to correct size according to the Chart on Page 5. The frame should be
constructed of 4x4 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.
H.
(See Chart
on Page 5)
Building Column
Concrete Stem Wall
Building Columns - 20’-0” O.C.
4x4 Post or 2x Treated Framing
W.
(See Chart
on Page 5)
H.
(See Chart
on Page 5)
Building Column
Concrete Stem Wall
Building Columns - 25’-0” O.C.
9© Munters Corporation, July 2021 QM1095r1
Installation InstructionsChapter 2
Figure 1C
4x4 Post or 2x Treated Framing
W.
(See Chart
on Page 5)
H.
(See Chart
on Page 5)
Building Column
Concrete Stem Wall
Building Columns - 30’-0” O.C.
Step 2
An optional Lift Bracket Kit is available to be able to lift fan into the framed opening. If Lift Bracket Kit
was purchased 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.
Bolt [D]
Left Lift Bracket
Nut [E]
Bearing Bracket
Right Lift Bracket
Bolt [D]
Nut [E]
Figure 2
© Munters Corporation, July 2021
10 QM1095r1
Installation InstructionsChapter 2
Step 3A
Insert fan into the framed opening from the inside. While holding fan tight to framing, fasten top of fan
with (5) Mounting Screw/Bolt (not provided).
See Figure 3A
.Next, fasten bottom of fan, then both
sides with (5) Mounting Screw/Bolt (not provided) per side. Install flashing around opening tight to fan
and caulk around fan to seal.
Figure 3B Wall Framing
2" Minimum Framing for fan, Bottom
Wall Opening (See Chart on Page 5)
4" Minimum Framing for
fan, Top and Sides
Wall Framing
Figure 3A
OUTSIDEINSIDE
Mounting Screw/Bolt
(not provided)
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.
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