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Pruden 24″ Poly Pit Transition Fan

Product Description:
The 24” Pruden Poly Pit Transition Fan features a design that incorporates the center fan body into the transition body. By eliminating the center fan body, we have created a system that protrudes less from the side of your building. The Poly Pit Transition Fan has a poly shutter and poly prop with a cast aluminum hub. The stainless-steel side channels allow you to easily remove the poly hood and shutter without any tools for easy maintenance and cleaning.

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Key Features:

  • One-piece seamless transition body
  • Toolless removal of poly hood and shutter for easy maintenance and cleaning
  • Fan features recessed fiberglass venturi and 4 blade poly propeller with cast aluminum hub
  • Fan is pre-wired with 8’ cord for 230V
  • Pit transition and hood manufactured using a proprietary process resulting in a smoother, easier to clean surface
  • Stainless-steel slanted H-frame motor mount and stainless-steel hardware

Applications:

  • Swine
Part # Motor Wiring Instructions Size Output (CFM) HP Volts Amps NP Hz Ph Spd RPM Drive Prop Test # Cord Speed Control Compatible VFD Compatible Fixed or Portable Oscillating CFM@ .0" SP CFM/ Watt @ .0 SP CFM@ .05" SP CFM/ Watt @ .05" SP CFM@ .10" SP CFM/ Watt @ .10" SP CFM@ .15" SP CFM/ Watt @ .15" SP CFM@ .20" SP CFM/ Watt @ .20" SP Air Flow Ratio FEI @ 0.10" SP Rough-In Dimensions Shutter Cone Net Wt Housing Material Housing Color Guard material and coating Guard Color Guard Spacing Blade Material Blade Color Component Certifications
Part - Motor Wiring Instructions Size Output (CFM) HP Volts Amps NP Hz Ph Spd RPM Drive Prop Test # Cord Speed Control Compatible VFD Compatible Fixed or Portable Oscillating CFM@ .0" SP CFM/ Watt @ .0 SP CFM@ .05" SP CFM/ Watt @ .05" SP CFM@ .10" SP CFM/ Watt @ .10" SP CFM@ .15" SP CFM/ Watt @ .15" SP CFM@ .20" SP CFM/ Watt @ .20" SP Air Flow Ratio FEI @ 0.10" SP Rough-In Dimensions Shutter Cone Net Wt Housing Material Housing Color Guard material and coating Guard Color Guard Spacing Blade Material Blade Color Component Certifications
Single Phase No Hood
PFFS24 --- 24" 1/3 115/230˜ 3.8/1.9 60 1 1/Var^ 1131 Direct 4-Ply 20170228-02 No Yes No Fixed Non 4760 11.4 4426 10.6 3885 9.6 2678 7.1 2057 5.2 0.46 32”W x 32”L P Poly White Poly Black CSA LR63596 UL recognized E22922
Single Phase No Hood
PFFS2412S --- 24" 1/2 115/230˜ 6.3/3.2 60 1 1/Var^ 1075 Direct 8-Ply 20170228-04 No Yes No Fixed Non 5222 9.5 4885 8.9 4510 8.3 3911 7.6 3136 6.3 0.64 32”W x 32”L P 114 Poly White Poly Black CSA LR20225 UL recognized E49747
Single Phase With Hood
PFFS24WS --- 24" 1/3 115/230˜ 3.8/1.9 60 1 1/Var^ 1134 Direct 4-Ply 20170228-01 No Yes No Fixed Non 4612 11.0 4257 10.3 3792 9.4 2571 6.9 2003 5.0 0.47 32”W x 32”L P H Poly White Poly Black CSA LR63596 UL recognized E22922
Single Phase With Hood
PFFS2412WS --- 24" 1/2 115/230˜ 6.3/3.2 60 1 1/Var^ 1075 Direct 8-Ply 20170228-03 No Yes No Fixed Non 4899 8.9 4585 8.4 4183 7.8 3356 6.7 2919 5.6 0.64 32”W x 32”L P H 123 Poly White Poly Black CSA LR20225 UL recognized E49747
Three Phase No Hood
PFFS243S --- 24" 1 230/460 3.2/1.6 60 3 1 1750 Direct 4-Ply 20170227-02 No yes w/VFD Yes Fixed Non 7013 6.8 6759 6.6 6540 6.3 6328 6.1 6066 5.9 0.90 0.86 32”W x 32”L P 114 Poly White Poly Black CSA UL recognized E22922 CE
Three Phase No Hood
PFFS24312S --- 24" 1/2 230/460 1.8/0.9 60 3 1 1720 Direct 8-Ply 20170307-02 No yes w/VFD Yes Fixed Non 5405 10.3 5157 9.7 4918 9.2 4625 8.7 4335 8.2 0.84 32”W x 32”L P 114 Poly White Poly Black UL recognized
Three Phase With Hood
PFFS243WS --- 24" 1 230/460 3.2/1.6 60 3 1 1750 Direct 4-Ply 20170227-01 No yes w/VFD Yes Fixed Non 6551 25.6 6314 6.1 6124 5.9 5883 5.7 5668 5.5 0.90 0.81 32”W x 32”L P H Poly White Poly Black CSA UL recognized E22922 CE
Three Phase With Hood
PFFS24312WS --- 24" 1/2 230/460 1.8/0.9 60 3 1 1720 Direct 4-Ply 20170307-01 No yes w/VFD Yes Fixed Non 5207 9.8 4942 9.2 4698 8.8 4411 8.3 4128 7.8 0.84 32”W x 32”L P H 123 Poly White Poly Black UL recognized
Part #
PFFS24
Single Phase No Hood
Details
Poly Transition Fan, 24" 230V 1/3HP 1PH S/Var DD, Shutter
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1/3
Volts
115/230˜
Amps NP
3.8/1.9
Hz
60
Ph
1
Spd
1/Var^
RPM
1131
Drive
Direct
Prop
4-Ply
Test #
20170228-02
Cord
No
Speed Control Compatible
Yes
VFD Compatible
No
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
4760
CFM/ Watt @ .0 SP
11.4
CFM@ .05" SP
4426
CFM/ Watt @ .05" SP
10.6
CFM@ .10" SP
3885
CFM/ Watt @ .10" SP
9.6
CFM@ .15" SP
2678
CFM/ Watt @ .15" SP
7.1
CFM@ .20" SP
2057
CFM/ Watt @ .20" SP
5.2
Air Flow Ratio
0.46
FEI @ 0.10" SP
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
Net Wt
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
CSA LR63596 UL recognized E22922
Part #
PFFS2412S
Single Phase No Hood
Details
Poly Pit Transition Fan 24", 115/230V 1/2HP 1PH 1SP, Shutter
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1/2
Volts
115/230˜
Amps NP
6.3/3.2
Hz
60
Ph
1
Spd
1/Var^
RPM
1075
Drive
Direct
Prop
8-Ply
Test #
20170228-04
Cord
No
Speed Control Compatible
Yes
VFD Compatible
No
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
5222
CFM/ Watt @ .0 SP
9.5
CFM@ .05" SP
4885
CFM/ Watt @ .05" SP
8.9
CFM@ .10" SP
4510
CFM/ Watt @ .10" SP
8.3
CFM@ .15" SP
3911
CFM/ Watt @ .15" SP
7.6
CFM@ .20" SP
3136
CFM/ Watt @ .20" SP
6.3
Air Flow Ratio
0.64
FEI @ 0.10" SP
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
Net Wt
114
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
CSA LR20225 UL recognized E49747
Part #
PFFS24WS
Single Phase With Hood
Details
Poly Transition Fan, 24" 230V 1/3HP 1PH S/Var Hood & Shutter
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1/3
Volts
115/230˜
Amps NP
3.8/1.9
Hz
60
Ph
1
Spd
1/Var^
RPM
1134
Drive
Direct
Prop
4-Ply
Test #
20170228-01
Cord
No
Speed Control Compatible
Yes
VFD Compatible
No
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
4612
CFM/ Watt @ .0 SP
11.0
CFM@ .05" SP
4257
CFM/ Watt @ .05" SP
10.3
CFM@ .10" SP
3792
CFM/ Watt @ .10" SP
9.4
CFM@ .15" SP
2571
CFM/ Watt @ .15" SP
6.9
CFM@ .20" SP
2003
CFM/ Watt @ .20" SP
5.0
Air Flow Ratio
0.47
FEI @ 0.10" SP
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
H
Net Wt
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
CSA LR63596 UL recognized E22922
Part #
PFFS2412WS
Single Phase With Hood
Details
Poly Pit Transition Fan, 24", 115/230V 1/2HP 1PH 1SP, H&S
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1/2
Volts
115/230˜
Amps NP
6.3/3.2
Hz
60
Ph
1
Spd
1/Var^
RPM
1075
Drive
Direct
Prop
8-Ply
Test #
20170228-03
Cord
No
Speed Control Compatible
Yes
VFD Compatible
No
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
4899
CFM/ Watt @ .0 SP
8.9
CFM@ .05" SP
4585
CFM/ Watt @ .05" SP
8.4
CFM@ .10" SP
4183
CFM/ Watt @ .10" SP
7.8
CFM@ .15" SP
3356
CFM/ Watt @ .15" SP
6.7
CFM@ .20" SP
2919
CFM/ Watt @ .20" SP
5.6
Air Flow Ratio
0.64
FEI @ 0.10" SP
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
H
Net Wt
123
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
CSA LR20225 UL recognized E49747
Part #
PFFS243S
Three Phase No Hood
Details
Poly Pit Transition Fan, 24", 230-460V 1HP 3PH 1SP, Shutter
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1
Volts
230/460
Amps NP
3.2/1.6
Hz
60
Ph
3
Spd
1
RPM
1750
Drive
Direct
Prop
4-Ply
Test #
20170227-02
Cord
No
Speed Control Compatible
yes w/VFD
VFD Compatible
Yes
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
7013
CFM/ Watt @ .0 SP
6.8
CFM@ .05" SP
6759
CFM/ Watt @ .05" SP
6.6
CFM@ .10" SP
6540
CFM/ Watt @ .10" SP
6.3
CFM@ .15" SP
6328
CFM/ Watt @ .15" SP
6.1
CFM@ .20" SP
6066
CFM/ Watt @ .20" SP
5.9
Air Flow Ratio
0.90
FEI @ 0.10" SP
0.86
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
Net Wt
114
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
CSA UL recognized E22922 CE
Part #
PFFS24312S
Three Phase No Hood
Details
Poly Pit Transition Fan, 24" 230/460V 1/2HP 3PH 1SP, Shutter
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1/2
Volts
230/460
Amps NP
1.8/0.9
Hz
60
Ph
3
Spd
1
RPM
1720
Drive
Direct
Prop
8-Ply
Test #
20170307-02
Cord
No
Speed Control Compatible
yes w/VFD
VFD Compatible
Yes
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
5405
CFM/ Watt @ .0 SP
10.3
CFM@ .05" SP
5157
CFM/ Watt @ .05" SP
9.7
CFM@ .10" SP
4918
CFM/ Watt @ .10" SP
9.2
CFM@ .15" SP
4625
CFM/ Watt @ .15" SP
8.7
CFM@ .20" SP
4335
CFM/ Watt @ .20" SP
8.2
Air Flow Ratio
0.84
FEI @ 0.10" SP
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
Net Wt
114
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
UL recognized
Part #
PFFS243WS
Three Phase With Hood
Details
Poly Transition Fan, 24" 230/460V 1HP 3PH 1SP Hood & Shutter
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1
Volts
230/460
Amps NP
3.2/1.6
Hz
60
Ph
3
Spd
1
RPM
1750
Drive
Direct
Prop
4-Ply
Test #
20170227-01
Cord
No
Speed Control Compatible
yes w/VFD
VFD Compatible
Yes
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
6551
CFM/ Watt @ .0 SP
25.6
CFM@ .05" SP
6314
CFM/ Watt @ .05" SP
6.1
CFM@ .10" SP
6124
CFM/ Watt @ .10" SP
5.9
CFM@ .15" SP
5883
CFM/ Watt @ .15" SP
5.7
CFM@ .20" SP
5668
CFM/ Watt @ .20" SP
5.5
Air Flow Ratio
0.90
FEI @ 0.10" SP
0.81
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
H
Net Wt
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
CSA UL recognized E22922 CE
Part #
PFFS24312WS
Three Phase With Hood
Details
Poly Pit Transition Fan, 24" 230/460V 1/2HP 3PH 1SP, H&S
Motor Wiring Instructions
---
Size
24"
Output (CFM)
HP
1/2
Volts
230/460
Amps NP
1.8/0.9
Hz
60
Ph
3
Spd
1
RPM
1720
Drive
Direct
Prop
4-Ply
Test #
20170307-01
Cord
No
Speed Control Compatible
yes w/VFD
VFD Compatible
Yes
Fixed or Portable
Fixed
Oscillating
Non
CFM@ .0" SP
5207
CFM/ Watt @ .0 SP
9.8
CFM@ .05" SP
4942
CFM/ Watt @ .05" SP
9.2
CFM@ .10" SP
4698
CFM/ Watt @ .10" SP
8.8
CFM@ .15" SP
4411
CFM/ Watt @ .15" SP
8.3
CFM@ .20" SP
4128
CFM/ Watt @ .20" SP
7.8
Air Flow Ratio
0.84
FEI @ 0.10" SP
Rough-In Dimensions
32”W x 32”L
Shutter
P
Cone
H
Net Wt
123
Housing Material
Poly
Housing Color
White
Guard material and coating
Guard Color
Guard Spacing
Blade Material
Poly
Blade Color
Black
Component Certifications
UL recognized

Product Details:

Part #

Motor Wiring Instructions

Size

HP

Volts

Amps NP

Hz

Phase

Speed

RPM

Drive

Prop

Test #

Speed Control Compatibility

VFD Compatible

Fixed or Portable

CFM@ .0" SP

CFM/ Watt @ .0 SP

CFM@ .05" SP

CFM/ Watt @ .05" SP

CFM@ .10" SP

CFM/ Watt @ .10" SP

CFM@ .15" SP

CFM/ Watt @ .15" SP

CFM@ .20" SP

CFM/ Watt @ .20" SP

Air Flow Ratio

FEI @ 0.10" SP

Rough-In Dimensions

Shutter

Cone

Housing Material

Housing Color

Guard material & coating

Guard Color

Blade Material

Blade Color

Single Phase No Hood

PFFS24

---

24"

1/3

115/230˜

3.8/1.9

60

1

1/Var^

1131

Direct

4-Ply

20170228-02

Yes

No

Fixed

4760

11.4

4426

10.6

3885

9.6

2678

7.1

2057

5.2

0.46

32”W x 32”L

P

Poly

White

Poly

Black

Single Phase No Hood

PFFS2412S

---

24"

1/2

115/230˜

6.3/3.2

60

1

1/Var^

1075

Direct

8-Ply

20170228-04

Yes

No

Fixed

5222

9.5

4885

8.9

4510

8.3

3911

7.6

3136

6.3

0.64

32”W x 32”L

P

Poly

White

Poly

Black

Single Phase With Hood

PFFS24WS

---

24"

1/3

115/230˜

3.8/1.9

60

1

1/Var^

1134

Direct

4-Ply

20170228-01

Yes

No

Fixed

4612

11.0

4257

10.3

3792

9.4

2571

6.9

2003

5.0

0.47

32”W x 32”L

P

H

Poly

White

Poly

Black

Single Phase With Hood

PFFS2412WS

---

24"

1/2

115/230˜

6.3/3.2

60

1

1/Var^

1075

Direct

8-Ply

20170228-03

Yes

No

Fixed

4899

8.9

4585

8.4

4183

7.8

3356

6.7

2919

5.6

0.64

32”W x 32”L

P

H

Poly

White

Poly

Black

Three Phase No Hood

PFFS243S

---

24"

1

230/460

3.2/1.6

60

3

1

1750

Direct

4-Ply

20170227-02

yes w/VFD

Yes

Fixed

7013

6.8

6759

6.6

6540

6.3

6328

6.1

6066

5.9

0.90

0.86

32”W x 32”L

P

Poly

White

Poly

Black

Three Phase No Hood

PFFS24312S

---

24"

1/2

230/460

1.8/0.9

60

3

1

1720

Direct

8-Ply

20170307-02

yes w/VFD

Yes

Fixed

5405

10.3

5157

9.7

4918

9.2

4625

8.7

4335

8.2

0.84

32”W x 32”L

P

Poly

White

Poly

Black

Three Phase With Hood

PFFS243WS

---

24"

1

230/460

3.2/1.6

60

3

1

1750

Direct

4-Ply

20170227-01

yes w/VFD

Yes

Fixed

6551

25.6

6314

6.1

6124

5.9

5883

5.7

5668

5.5

0.90

0.81

32”W x 32”L

P

H

Poly

White

Poly

Black

Three Phase With Hood

PFFS24312WS

---

24"

1/2

230/460

1.8/0.9

60

3

1

1720

Direct

4-Ply

20170307-01

yes w/VFD

Yes

Fixed

5207

9.8

4942

9.2

4698

8.8

4411

8.3

4128

7.8

0.84

32”W x 32”L

P

H

Poly

White

Poly

Black

Product Details:

Part #

Motor Wiring Instructions

Size

HP

Volts

Amps NP

Hz

Phase

Speed

RPM

Drive

Prop

Test #

Speed Control Compatibility

VFD Compatible

Fixed or Portable

CFM@ .0" SP

CFM/ Watt @ .0 SP

CFM@ .05" SP

CFM/ Watt @ .05" SP

CFM@ .10" SP

CFM/ Watt @ .10" SP

CFM@ .15" SP

CFM/ Watt @ .15" SP

CFM@ .20" SP

CFM/ Watt @ .20" SP

Air Flow Ratio

FEI @ 0.10" SP

Rough-In Dimensions

Shutter

Cone

Housing Material

Housing Color

Guard material & coating

Guard Color

Blade Material

Blade Color

Single Phase No Hood

PFFS24

---

24"

1/3

115/230˜

3.8/1.9

60

1

1/Var^

1131

Direct

4-Ply

20170228-02

Yes

No

Fixed

4760

11.4

4426

10.6

3885

9.6

2678

7.1

2057

5.2

0.46

32”W x 32”L

P

Poly

White

Poly

Black

Single Phase No Hood

PFFS2412S

---

24"

1/2

115/230˜

6.3/3.2

60

1

1/Var^

1075

Direct

8-Ply

20170228-04

Yes

No

Fixed

5222

9.5

4885

8.9

4510

8.3

3911

7.6

3136

6.3

0.64

32”W x 32”L

P

Poly

White

Poly

Black

Single Phase With Hood

PFFS24WS

---

24"

1/3

115/230˜

3.8/1.9

60

1

1/Var^

1134

Direct

4-Ply

20170228-01

Yes

No

Fixed

4612

11.0

4257

10.3

3792

9.4

2571

6.9

2003

5.0

0.47

32”W x 32”L

P

H

Poly

White

Poly

Black

Single Phase With Hood

PFFS2412WS

---

24"

1/2

115/230˜

6.3/3.2

60

1

1/Var^

1075

Direct

8-Ply

20170228-03

Yes

No

Fixed

4899

8.9

4585

8.4

4183

7.8

3356

6.7

2919

5.6

0.64

32”W x 32”L

P

H

Poly

White

Poly

Black

Three Phase No Hood

PFFS243S

---

24"

1

230/460

3.2/1.6

60

3

1

1750

Direct

4-Ply

20170227-02

yes w/VFD

Yes

Fixed

7013

6.8

6759

6.6

6540

6.3

6328

6.1

6066

5.9

0.90

0.86

32”W x 32”L

P

Poly

White

Poly

Black

Three Phase No Hood

PFFS24312S

---

24"

1/2

230/460

1.8/0.9

60

3

1

1720

Direct

8-Ply

20170307-02

yes w/VFD

Yes

Fixed

5405

10.3

5157

9.7

4918

9.2

4625

8.7

4335

8.2

0.84

32”W x 32”L

P

Poly

White

Poly

Black

Three Phase With Hood

PFFS243WS

---

24"

1

230/460

3.2/1.6

60

3

1

1750

Direct

4-Ply

20170227-01

yes w/VFD

Yes

Fixed

6551

25.6

6314

6.1

6124

5.9

5883

5.7

5668

5.5

0.90

0.81

32”W x 32”L

P

H

Poly

White

Poly

Black

Three Phase With Hood

PFFS24312WS

---

24"

1/2

230/460

1.8/0.9

60

3

1

1720

Direct

4-Ply

20170307-01

yes w/VFD

Yes

Fixed

5207

9.8

4942

9.2

4698

8.8

4411

8.3

4128

7.8

0.84

32”W x 32”L

P

H

Poly

White

Poly

Black

FAQs:

Ventilation helps to maintain a healthy environment by regulating moisture and humidity, controlling temperatures, removing fumes and odors, and exchanging fresh air for humans and animals to maximize productivity.
Heat stress in animals is a very serious condition that can lead to a decrease in appetite, loss of milk or egg production, shutdown of the reproduction system, diminished nutrient absorption, poor growth and even death in extreme cases.
There are many important factors to consider when purchasing a fan. Besides cost, you should also consider the efficiency of the fan, the noise level, and the energy use. Many ventilation fans have a lower upfront price tag, but will cost you more over time by consuming large amounts of energy.
J&D has numerous options for your dairy ventilation system including natural, recirculation, tunnel, and cross-tunnel ventilation. In addition to these basic ventilation types, evaporative pad cooling, soaking, misting, fogging and mechanical ventilation can all be intermixed to maximize the cooling capacity of your system.
A Natural Ventilation System relies only on wind to cool your barn using open side walls or curtain side walls.

Advantages: low investment cost, low electrical operating cost, zero fan noise, easy management and operation, bright and airy work space, animals will not be affected by power failures.

Disadvantages: little to no temperature and air exchange control, no insect control, radiant sun increases temperature on outside stalls, precise building location is required to maximize wind direction.
A Tunnel Ventilation System uses a series of exhaust fans on the short end of your building with inlets located on the opposite end. Air enters the building through the inlets where it is pulled down the length of your building like a wind tunnel and exhausted out the opposite end. The exhaust fans create air exchange and a high velocity air movement.

Advantages: insect control, consistent environment, proper temperature, humidity and odor control, keeps bedding and floors dry.

Disadvantages: higher investment cost when compared to natural ventilation, very little natural light, not suitable for year round use without a fresh air system due to inadequate fresh air distribution during cool winter ventilation conditions.
Cross Tunnel Ventilation is very similar to Tunnel Ventilation whereas a series of exhaust fans and inlets are used on the walls of your building. With Cross Tunnel Ventilation, the exhaust fans and inlets are located on the long sides of your building instead of the short sides. The air is pulled through the width of your building instead of through the length like it is with regular Tunnel Ventilation.

Advantages: building ends can be used for necessary overhead doors, insect control, consistent environment, proper temperature, humidity and odor control, keeps bedding and floors dry.

Disadvantages: higher investment cost when compared to natural ventilation, very little natural light, not suitable for year round use due to inadequate fresh air distribution during cool winter ventilation conditions.
Recirculation Ventilation uses a series of recirculation fans that are positioned to blow air across the animals to create a cooling effect. When designed properly with an open or curtain side wall, you can also get an air exchange in the building.

Advantages: insect control, consistent environment, proper temperature, humidity and odor control, keeps bedding and floors dry

Disadvantages: higher installation and operating costs when compared to natural ventilation.
Selecting a ventilation system depends on a number of factors including budget, building location and orientation, and your complete ventilation strategy. Call our ventilation experts at 1-800-998-2398 or e-mail us at [email protected] to help design the best system for you.
J&D has knowledgable Engineering and Sales staff that can assist you in this process. We will design and recommend options to give you the most effective system. Call our ventilation experts at 1-800-998-2398 or e-mail us at [email protected] to help design the best system for you.
All fans should be cleaned regularly by removing accumulated dirt and debris on louvers, blades and motors to improve performance. Dirt that clogs your fan motor will cause it to run hot, and will reduce the life of your motor. You should also regularly check fan belts and keep them adjusted to factory specifications. Loose belts can cause belt slippage and will reduce the airflow of your fan.
J&D recommends a cooling system when temperatures reach between 85° – 90° depending on your application.
In the summer, a ceiling fan creates a mild wind chill to help cool the building. In the winter, a ceiling fan helps to mix the warm air that collects on the ceiling and in the peaks of most industrial and commercial buildings. By installing a ceiling fan, the warm air is recirculated back down to the floor level to help maintain a uniform temperature and save on heating costs.
For preventing heat stratification, it will be depend on the height of the ceiling. With ceilings between 15′ and 30′, ceiling fans should be mounted to cover 4000 square feet of floor area. For cooling people during the hot summer months, fans should be placed 15′ to 20′ apart.
J&D recommends having all electrical work performed by a certified electrician. The electrician can find the wiring diagram on the motor label.
J&D offers a 2 year replacement warranty on all electric fan motors, unlike many of our competitors who offer only a one year warranty. Warranty is based on invoice date to the dealer, J&D does not cover freight or labor. POW14, POW18, POW18B, POW24OSC, POW30OSC, VBM60PSC-P, VBM148PSC-P, PDF24, and VRSM10-Power inlet motor carry a 1 year warranty. VR3E and VR33 motors (Mega Storm Fan) carry a 3 year warranty.