Chore-Time TURBO MV1864P Administratorhandbuch
52" TURBO® Fan with HYFLO® Door
Installation & Operator’s Instruction Manual
Fan Type Fan Assembly
Part No.
Sub Assembly
Part No.
Bess Lab
Test No.
Voltage Hz Ph HP Fan
rpm
cfm @
.10" w.c.
cfm/Watt
.10" w.c.
Standard 49740-22* 49862-22 04334 230 60 1 1.5 564 24900 20.8
High Capacity 49740-21* 49862-21 04312 230 60 1 1.5 611 27700 18.3
Standard 49740-42* 49862-42 04335 208-230/460 60 3 1.5 566 24800 20.5
High Capacity 49740-41* 49862-41 04318 208-230/460 60 3 1.5 615 27900 18.2
High Capacity 49740-51* 49862-51 200-380/415 50 3 1.5
*Part Numbers shown are for White Fans with White Cones. Add a "B" to the Part Number example: "49740-22B" for a Black Fan w/ Black
Cone, Add a "BW" for a Black Fan w/ White Cone.
MV1864PAugust 2017
Fan and Fan Framing Dimensions
2MV1864P
Planning the layout of the spacing between fans is very important. A Minimum of 13" between Fan rough openings
is required so the Cones do not interfere. Dimensions for rough openings for Fans are shown in Figure 2 below.
Important! The Fan Inlet and exhaust must be kept clear of obstructions. Failure to keep the Fan airflow path clear
of obstructions could cause loss of Fan perfomance and Fan damage.
Do Not operate these Fans with a variable speed control device. Operating static pressure should be less than 0.15
inches water column.
Fan and Fan Framing Dimensions
3
4
1
5
Item Description
1 59” [149.86 cm]
2 67.81" [172.2 cm]
3 53” [134.91 cm]
4 7.5" [19.1 cm]
5 59" [149.86 cm]
6 8.3 [21.11 cm]
6
Figure 1. Fan and Framing Dimensions
2
MT1864-036 2/05
Figure 2. Rough opening Spacing
2
2
1
Item Dimension
1 13" [33 cm] Min. for round Cones
2 56-1/2" [143.51 cm]
Installation
MV1864P 3
Fan Mounting
Insert the Fan Assembly in the wall opening. Rotate the Fan Blade by hand and check to make sure that
there is a minimum of 1/8" Blade clearance all the way around the Shroud orifice. Shift the Fan around in
the wall opening, if needed, to achieve at least 1/8" clearance all the way around. Now the Fan is ready to
be attached to the wall.
Installation
Mimimum 1/8" Tip
Clearance
Rotate Blade
Step 1:Set the Fan in the Framed
Opening. Rotate Fan Blade and
Check for 1/8" Blade Tip
Clearance
Note: Fan shown without components for clarity.
Installation
4MV1864P
Locate the three holes across the top Fan Shroud flange (Item 5, Figure 3). Line up the Screen Retainers
included in the Parts Package (Item 1, Figure 3) with these three holes, slip them over the top Fan Shroud
flange, and using (3) 1/4 x 1-3/4 Lag Screws included in the Parts Package attach the Fan to the Wall
(Step 1, Figure 3). In each of the remaining 5 holes in the Fan Shroud flange, use a 1/4 x 1-3/4 Lag Screw,
two Nylon Washers, and a Screen Clip, all included in the Parts Package, to secure Fan to the Wall as
shown below in Step 2. Only tighten the Lag Screws enough that the Clip will retain it’s position, but can
still be rotated by hand. Use two more Lag Screws to attach the Fan to the Wall through the holes in the
Post Brackets (Step 3, Item 6).
Figure 3. Installing Screen Clips
1
2
2
5
34
MV1864-006 1/05
Step 1:Fasten Fan to Wall at top (Use Screen
Step 2:Fasten Fan to Wall at Bottom
and sides (Use Screen Clips)
Key Description
1 Screen Retainer (Incl. in Parts Pkg.)
2 1/4 x 1-3/4 SS Lag Screw (Incl. in Parts Pkg.)
3 Screen Clip (Incl. in Parts Pkg.)
4 Nylon Washer (Incl. in Parts Pkg.)
5 Top Fan Shroud Flange
6 Post Bracket
Step 3:Fasten Fan to Wall at the
Post Brackets
2
6
Installation
MV1864P 5
Removing the Doors
To avoid damaging the Fan Doors it is best to remove them before attaching the Cone. Unhook the Door Springs from the Door
and leave them attached to the Fan so they are not lost (Figure 4, Step 1). Remove the Door Clip and Washer and open up the
Doors (Step 2). You can discard the Door Clip and Washer. Lift one Door up so it will clear the Bottom Pivot Bracket (Step
3), and Pull the Door out (Step 4). Set the Door aside. Repeat the same process to remove the second Door.
Key Description
1 Door Spring
2 Door
3 Bottom Pivot Bracket
4 Door Clip
5Washer
1
2
Pull the Door to Clear the Bottom Pivot Bracket
Step 1:Unhook the Door
Springs
3
2
Lift the Door up to Clear the Bottom
Pivot Bracket
Step 3:Lift up the Door Step 4:Pull the Door out
Step 2:Remove Door Clip and Open the Doors
Figure 4. Removing the Doors
2
4
5
Remove and Discard
Remove and Discard
Installation
6MV1864P
Attaching the Cone
To install the Cone you must first identify the Top of the Cone. The cutout in the top of the Cone does not extend
out to the Cones edge (See Figure 5). Begin Installing the Cone by hooking the top of the Cone over the top of the
Fan orifice. At this time only attach the Cone to the Shroud at the upper most two holes using (2) 1/4-20 Bolts and
(2) 1/4-20 Flange Nuts provided in the Parts Package (See Figure 5).
Slide the Remaining Cone over the Shroud orifice, working around the Cone from top to bottom. When you get to
the bottom of the Cone it is best to have a second person push down on the Cone from inside the Fan as you push
the Cone on. (See Figure 6 below).
Key Description
1 Cone
2 1/4-20 x .8 SS HH Bolt (Parts Pkg.)
3 1/4-20 HX Serrated Flange Nut (Parts Pkg.)
Figure 5. Attaching the Cone at the Top
Cutout in the bottom of Cone
extends to the edge
1
Cutout in the top of Cone does
not extend to the Cones edge
3
2
3
2
From insided of Fan push down on the Cone while
a second person pushes the Cone onto Shroud from the outside.
Figure 6. Sliding the Cone on at the Bottom
Key Description
1 Cone
2 Shroud
1
2
Installation
MV1864P 7
Finish attaching the Cone to the Fan Shroud with (4) 1/4-20 x 7/8 Bolts and Flange Nuts in the (4) remaining holes
pre-drilled in the Cone (Figure 7 below).
Replacing the Doors
Replace the Doors by reversing the steps used to remove them in the Removing the Doors section of this manual.
Important: Re-attach the Door Springs to the 1st Hole in the Doors (Figure 8). In windy conditions: If the Fan
Doors do not close when the Fan is off, or if the Doors open before the Fan turns on; increase the Spring tension by
re-attaching the Spring to the second or third hole in the Doors.
3
Key Description
1 Cone
2 Shroud
3 1/4-20 x 7/8 SS HH Bolt
(Included in Parts Pkg.)
4 1/4-20 HX Serrated Flange Nut
(Included in Parts Pkg.)
Figure 7. Attaching Cone
4
1
2
3rd Hole
2nd Hole
Re-attach Spring to Door
in the 1st Hole
Key Description
1 Door Spring
2 Door
Figure 8. Re-attaching Door Spring
1
2
Installation
8MV1864P
Attaching the Nylon Cable
Remove the Nylon Cable (Item 1, Step 1) from the parts package and insert it into the hole in the Top Pivot Bracket
(Item 2) as shown. Insert the other end of the Nylon Cable into the Cable Bracket (Item 3, Step 2) included in the
parts package leaving approximately 1" extend past the Bracket as shown. Attach the Cable Bracket to the hole at
the bottom of the Cone (Item 4) with a 1/4-20 Flange Bolt (Item 5) and Nut (Item 6) as shown in Step 3
1
2
Step 1:Insert Cable into hole in the
Top Pivot Bracket
Step 2:Insert the Nylon Cable into
Cable Bracket. Leave approx.
1" extend past the Bracket. Step 3:Attach Cable Bracket to Cone
with 1/4-20 Nut and Bolt
Figure 9. Attaching Nylon Cable
Item Description
1 Nylon Cable
2 Top Pivot Bracket Hole
3 Cable Bracket
4 Hole in Cone
5 1/4-20 Flange Bolt
6 1/4-20 Flange Nut
4
Approx. 1"
3
5
6
Installation
MV1864P 9
Attaching the Grill
Attach the Grill to the Cone by inserting the Grill ends into the slots in the Cone as shown in Figure 10 below.
2
1
Key Description
1 Cone
2 Grill End
Figure 10. Attaching Grill
Installation
10 MV1864P
Installing the Screen
Orient the Screen as shown below with the fine mesh section on the outside of the Fan. Slide the top of the Screen
under the Screen Retainers (Step 1, Figure 11) and turn the bottom Screen Clip to hold the Screen in place (Step
2). Turn the other (4) Screen Clips to secure the Screen in Place (Step 3).
6-1/2 Spaces 8-1/2 Spaces
Proper Screen Orientation from Intake side of Fan
Intake side of Fan
Step 1:Slide Screen under Screen
Clips
Step 2:Rotate bottom
Screen Clip
Key Description
1Screen
2Insert Screen
3 Screen Retainer (Included in Parts Pkg.)
4 Screen Clip (Included in Parts Pkg.)
Figure 11. Attaching the Screen
Step 3:Rotate remaining
Screen Clips
4
4
3
1
2
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