Chore-Time Hyflo 50485 Technische Daten
36" (50485) & 48" (50454) Hyflo®Retrofit Kit
Installation & Operator’s Instruction Manual
DANGER: Electrical Hazard
Disconnect electrical power before inspecting or servicing
equipment unless maintenance instructions specifically state
otherwise. Ground all electrical equipment for safety. All
electrical wiring must be done by a qualified electrician in
accordance with local and national electric codes. Ground all non-
currentcarryingmetalpartstoguardagainstelectricalshock.With
the exception of motor overload protection, electrical disconnects
and over current protection are not supplied with the equipment.
DANGER: Rotating Fan Blade
Keep Hands away. Disconnect power before servicing. Fan may
start automatically. Do not operate the Fan without the screens in
place.
Disregard to the above mentioned Danger may cause serious
injury including death.
• Keep all Safety Signs and decals in good condition.
• Replace damaged or missing decals.
Safety
MV1902COctober 2012
Installing the new Door Assembly and Cone 36" (50485) & 48" (50454) Hyflo® Retrofit Kit
2MV1902C
Cone Assembly and Installation
Begin assembling the Cone by laying a Cone Panel (Item 1, Figure 3) on a couple of boards with the c-
shaped drain tab (Item 2) towards the front as shown. With the c-shaped drain tab toward the front (See
Figure), insert the tabs of each Cone Panel into the Slots of the next and lay them down locking them in
place.
When all four Cone Panels are connected, stand the panels up on edge and curl the Cone around with the
smaller diameter of the Cone up as shown below. Assemble the final Panels together and allow the Cone
to take its shape. If the Cone is assembled correctly the Tabs should all be on the Inside of the finished
Cone. Fasten the Cone Panels together with (4) 5/16 x 1/2" Hex Bolts Threaded in from the inside of the
finished Cone as shown in Figure 4. Do not tighten down the Nuts at this time. Leave the Nuts looseuntil
the Cone is attached to the Fan.
Installing the new Door Assembly and Cone
Item Description
1 Cone Panel
2 C-Shaped Drain Tab
Step 1:
All C-shaped drain tabs toward
Figure 3. Assembling Cone Panels
Step 3:
Prop a Cone Panel
up on boards Lay the Panels
down, locking
them in place.
3
1
3
1
3
2
front of Panels
Front of Panel Step 2:Insert Tabs of each
Cone Panel into the
Slots of the next.
3
23
1
Item Description
1 5/16 x 1/2" Bolt
2 5/16 Flange Nut
Figure 4. Bolting Cone Panels
Holes Nearest Cone Panels Edge
36" (50485) & 48" (50454) Hyflo® Retrofit Kit Installing the new Door Assembly and Cone
MV1902C 3
Orient the Door Assembly such that the bottom is lined up with one of the C-Shaped Drain Tab in the
Cone Assembly. The bottom of the Door Assembly can be identified by a drain hole in the Ring (See
Figure 5). Line up the Four Holes in the Door Ring with the holes in the Cone and thread (4) 5/16 x 1.25"
Bolts (Item 1) in until they are tight. Do not install Nuts at this time. These Bolts will be used later to
attach the Cone Brackets to the Cone Assembly.
Use (2) 5/16 x 1.25" Bolts (Item 1, Figure 6) and 5/16Flange Nuts (Item2)to attach the Ring to the Cone
using the Holes located on both sides near the Door Center Brace as shown below. Note that the Nuts go
on the outside of the Cone.
Turn the Cone over and remove the tape (Item 1, Figure 7) from the Door Stop Cable (Item 2).
Figure 5. Installing the Door Assembly
C-shaped Drain Tab
Drain hole in
bottom of Ring
Do not Install Nuts
Item Description
1 5/16 x 1-1/4 x 1/2"
3
1
Item Description
1 5/16 x 1-1/4 x 1/2" Bolt
2 5/16 Flange Nut
3 Door Center Brace
Figure 6. Attaching the Ring to the Cone
3
33
13
2
Item Description
1Tape
2 Door Stop Cable
3
1
Figure 7. Remove tape from Door Stop Cable
3
2
Installing the new Door Assembly and Cone 36" (50485) & 48" (50454) Hyflo® Retrofit Kit
4MV1902C
Attaching the Door Stop Cable to Grill, and the Grill to the Cone
Figure 8. Attaching Fan Cable and Grill
3
3
3
4
Door Stop Cable
Flush with Cone
3
3
Step 2:
Line up the Grill Eyehooks with the holes in the Cone. Thread the free
end of the Door Stop Cable (Nylon Cable) (Item 2) through the bottom
Grill Eyehook(Item 1) until it is flush with the Cone and secure it with
a 5/16-18 Carriage Bolt (Item 3) and Flange Nut (Item 4) as shown.
Step 1:
Item Description
1 Bottom Grill Eyehook
2 Door Stop Cable (Nylon Cable)
3 5/16-18 x .625 Carriage Bolt
4 5/16-18 Flange Nut
3
1
Top of Door
3
2
3
4
Picture of Door Stop Cable Secured
Use 5/16 Carriage Bolts (Item 3) and Nuts
(Item 4) to fasten Grill to Cone at remaining
7 locations.
36" (50485) & 48" (50454) Hyflo® Retrofit Kit Installing the new Door Assembly and Cone
MV1902C 5
Attaching the Cone
Attaching Cone Brackets to Shroud
Use 5/16 x 1/2" Carriage Bolts (Item 1, Figure 9) and 5/16 Flange Nuts (Item 2) to attach the four
Cone Brackets (Item 3) to the Fan Shroud as shown below.
Attaching Cone to Cone Brackets
Mounting the Cone and Door Assembly to the Fan requires at least two people. Pick up and orient the
Cone with the Fan Cable attached at the top (see Figure 8 on previous page) and rest the Cone on
top of the Fan Orifice as shown. Attach the top of the Cone to the two top Cone Brackets (Item 1,
Figure 10) with the Bolts that were previously threaded through the Ring and Cone, and secure with
5/16 Flange Nuts (Item 2). Only hand tighten the Nuts at this time. Working around the Fan Orifice
from inside the fan, in a circular motion, slide the Cone over the Fan Orifice. The Cone will Fit snug.
Use the Bolts previously threaded through the Ring and Cone and hand tighten the 5/16 Flange Nuts
to secure the bottom of the Cone to the two Bottom Cone Brackets (Item 3).
Figure 9. Attaching Cone Brackets to Shroud
Item Description
1 5/16 x 1/2" Carriage Bolt
2 5/16 Flange Nut
3 Cone Bracket
3
13
3
3
2
Step 2:Slide Cone over Fan orifice and
fasten bottom Cone Brackets
(Hand tighten only).
Step 1:Rest the Cone on the Fan
orifice and attach it to the
Top two Cone Brackets (Hand
tighten only).
Item Description
1 Top Cone Bracket
2 5/16 Flange Nut
3 Bottom Cone Bracket
Cone resting on Fan Orifice
3
1
3
2
3
2
3
3
Figure 10. Attaching Cone to Cone Brackets
Installing the new Door Assembly and Cone 36" (50485) & 48" (50454) Hyflo® Retrofit Kit
6MV1902C
Leveling Doors and tightening down Cone Hardware
Use a Level and rotate the Cone and Door Assembly until the Center Screen Wire (Item 1, Figure
11) is Vertical (See Figure). Once the Cone and Door Assembly is vertical, tighten the four 5/16
Flange Nuts (Item 2) holding the Cone to the Cone Brackets and also the four 5/16 Flange Nuts
holding the Cone Panels together that were hand tightened in Figure 4.
Item Description
1 Center Grill Wire
2 5/16 Flange Nut
Step 1:Using a level, Rotate
the Cone and Door
Assembly until the
Center Grill Wire is
vertical
Step 2:Tighten down four 5/16 Flange
Nuts holding the Cone to the
Cone Brackets and the ones
holding the Cone Panels
together. (Hardware on right
side of Fan not shown)
Figure 11. Leveling Doors and tightening down Cone Hardware
Hardware on right
3
1
side not shown 3
2
36" (50485) & 48" (50454) Hyflo® Retrofit Kit Installing the new Door Assembly and Cone
MV1902C 7
Door Spring Installation
At the middle of the Door Center Brace (Item 1, Figure 12), attach the Spring Mounting Bracket (Item
2, Included in the Parts Package) as shown in Step 1below. Hook the rounded ends of the Door Springs
(Item 3) onto the Spring Mounting Bracket. Stretch the Door Springs out and hook them on the 3/32"
holes (Item 4) in the Doors (See Step 2).
Figure 12. Attaching the Spring Mounting Bracket
Step 1:Attach the Spring Mounting
Bracket (Included in parts
package).
Step 2:Attach Springs (Included in
parts package) to Spring
Mounting Bracket and holes in
Doors.
Item Description
1 Door Center Brace
2 Spring Mounting Bracket
3 Door Spring
4 3/32" Hole in Door
3
4
3
3
Round ends of Springs
3
1
3
2
Kit Parts 36" (50485) & 48" (50454) Hyflo® Retrofit Kit
8MV1902C
Kit Parts
50454 (48" Kit) 50485 (36" Kit)
Item Description Part Number
1 Metal Cone Fan Grill 49447 37629
2 Cone Panel 51040 50285
3* Fan Door Frame 49439 50293
4 5/16-18 x .50 HH Bolt 1839 1839
5 5/16-18 x .625 Car. Bolt 8282 8282
6 5/16-18 Nut 8490 8490
7 5/16-18 x 1.25 Bolt 2150 2150
8 Cone Support Bracket 49445 49445
9 Spring 49629 49629
10 Door Spring Support 49450 49450
11 Door Assembly 49440 50311
12* Foam Tape 48425 48425
13* Fan Door Pivot Plate 49598 49598
14* Fan Door 49446 50292
15* .125 x .50 Magnet 48427 48427
16* 1/8 x .40 Pop Rivet 48936 48936
17* Cable Assembly 50618-2 50618-3
18* 1/4-20 x .63 Bolt 2152 2152
19* 1/4-20 Ser. Flng. Nut 46460 46460
*Included in Door Assembly
3
1
3
2
3
5
3
4
3
6
3
7
3
8
3
9
3
10
3
3
3
13
33
15
3
17 Door Cut Away for View
of Magnet and Rivet
3
12
3
18
14
3
11 *
*
***
*
*
*19
16
36" (50485) & 48" (50454) Hyflo® Retrofit Kit Kit Parts
MV1902C 9
This Page left Blank Intentionally.....
Kit Parts 36" (50485) & 48" (50454) Hyflo® Retrofit Kit
10 MV1902C
Made to work.
Built to last.
Note: The original, authoritative version of this manual is the [English] version produced by CTB, Inc. or any of
its subsidiaries or divisions, (hereafter collectively referred to as "CTB"). Subsequent changes to any manual
made by any third party have not been reviewed nor authenticated by CTB. Such changes may include, but are
not limited to, translation into languages other than [English], and additions to or deletions from the original
content. CTB disclaims responsibility for any and all damages, injuries, warranty claims and/or any other claims
associated with such changes, inasmuch as such changes result in content that is different from the authoritative
CTB-published [English] version of the manual. For current product installation and operation information,
please contact the customer service and/or technical service departments of the appropriate CTB subsidiary or
division. Should you observe any questionable content in any manual, please notify CTB immediately in writing
to: CTB Legal Department, P.O. Box 2000, Milford, IN 46542-2000 USA.
Revisions to this Manual
Page No. Description of Change
Various Added 48" Kit
Contact your nearby Chore-Time distributor or representative for additional parts and information.
CTB Inc.
P.O. Box 2000 • Milford, Indiana 46542-2000 • U.S.A.
Phone (574) 658-4101 • Fax (877) 730-8825
E-Mail: ctb@ctbinc.com • Internet: http//www.ctbinc.com
Printed in the U.S.A.
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