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FIGURE 2

-

4

  -

MOUNTING CLEARANCES

1.    Leave at least 20” (500mm) clearance between 

       the rear of the motor and the nearest obstruction.

2.    Clearance equal to the height of the fan shroud 

       above, or beneath is required for easy fan or 

       motor replacement.

TEMPERATURE CONTROL

1.    If required, the fan output may be thermostatically 

       controlled by a remotely mounted thermostat.

FINAL INSPECTION

1.    Before application of electrical power:

 

a. Check that all connections are secured and 

 

    comply with the applicable wiring diagram 

 

    and code requirements

 

b. Confirm the power supply is compatible with

 

    the data plate rotating on motor. 

 

c. Remove any foreign objects from fan.

 

d. Ensure all electrical covers are well secured.

 

e. Ensure the fan rotates freely 

 

    counterclockwise when viewed from the rear 

 

    of the fan and air exits through the dampers. 

B

F

G

A

E

AIR FLOW

C

D

C

D

C

D

C

D

EFX-12

EFX-16

EFX-20

EFX-24

EFX-30

mm

392.1

377.8

409.6

393.7

396.9

in

15.4

14.9

16.1

15.5

15.6

mm

461.9

588

687.9

787.9

942.3

in

18.2

23.2

27.1

31

37.1

mm

410

512.5

614.5

714.5

862.5

in

16.1

20.2

24.2

28.1

34

mm

79.4

57.2

91.7

76.2

88.9

in

3.1

2.2

3.6

3

3.5

mm

373.3

475.6

577.3

677.3

835.3

*

in

14.7

18.7

22.7

24.7

32.9

mm

411.1

537.2

637.1

737.1

891.5

in

16.2

21.2

25.1

29

35.1

mm

359.2

461.7

563.7

663.7

811.7

in

14.1

18.2

22.2

26.1

32

* This dimension is the minimum square opening size

E

F

G

DIMENSION

A

B

C

D

Summary of Contents for EFX

Page 1: ... ALL IMPORTANT NOTICES ON PAGE 3 PLEASE ADHERE TO INSTRUCTIONS PUBLISHED IN THIS MANUAL Failure to do so may be dangerous and may void certain provisions of your warranty This manual covers installations maintenance repair and replacement parts Explosion Proof Exhaust Fan EFX Heaters for the Harshest Environments Heaters for the Harshest Environments ISO 9001 ...

Page 2: ...LEAN Fan Fan Guard Motor Backdraft Dampers Stormhood 2 CHECK Motor for smooth quiet operation Dampers for proper angle and tightness 1 ELECTRICAL Check all terminal connections and conductors Tighten loose connections Conductors with damaged insulation must be replaced 2 MECHANICAL Check motor shaft bearing play Replace motor if play is excessive or motor does not run quietly and smoothly Motor be...

Page 3: ... air exhaust the fan s should be installed as follows a There are no obstructions that may impede the fans air inlet or discharge b The air discharge is directed away from building c The air discharge is not directed at a thermostat d For warehouses or large workshops it may be acceptable to use fewer larger fans 2 This unit can exhaust warm or cool air depending on customer conditions Be aware of...

Page 4: ... plate rotating on motor c Remove any foreign objects from fan d Ensure all electrical covers are well secured e Ensure the fan rotates freely counterclockwise when viewed from the rear of the fan and air exits through the dampers B F G A E AIR FLOW C D C D C D C D EFX 12 EFX 16 EFX 20 EFX 24 EFX 30 mm 392 1 377 8 409 6 393 7 396 9 in 15 4 14 9 16 1 15 5 15 6 mm 461 9 588 687 9 787 9 942 3 in 18 2...

Page 5: ...A B C 12 16 20 24 30 EFX MOTOR MOTOR ELECTRICAL SPECS MOTOR ENCLOSURE TOTALLY ENCLOSED SPECIAL MOTOR CABINET MATERIAL EPOXY POWDER COATED CARBON STEEL HERESITE PHENOLIC COATED CARBON STEEL EXHAUST FAN EXHAUST FAN MODEL 16 DIA 20 DIA 24 DIA 30 DIA X PROOF GR C D E F G STAINLESS STEEL FAN SIZE 12 DIA EFX Explosion Proof Exhaust Fan Model Coding Only available for Class I Group D Class II Group F G C...

Page 6: ...10 3 Remove the motor fan and grills from the frame by lifting the motor see Figure 11 4 Before removing the fan measure and record the location of the fan hub on the motor shaft see Figure 12 If fan is difficult to remove use a gear puller on the fan hub 5 To reassemble place grills with grill clips onto motor see Figure 12 then position fan on motor shaft and tighten set screws 6 Place motor ass...

Page 7: ...ight 1 8 9637 Bracket Motor Mount Left 1 9 Label EFX 1 10 Washer 10 SAE Flat 8 11 Screw 10 24 5 8 Lg Cutting 8 12 Bolt 5 16 NC 3 4 Lg 8 13 Washer 5 16 SAE 4 14 Nut 5 16 NC Hex Flange Locking 12 15 Bolt 5 16 18 UNC x 3 4 Lg 4 16 Rivet 1 8 2 17 11284 1378 1382 1389 1386 Fan 1 Provide motor voltage phase horsepower and service classification when ordering replacement motor 3257 1521 1518 3382 1517 14...

Page 8: ...s II Div 1 2 Groups E F G Temperature Code T3B 165 C 329 F EAC IEx d IIB T3 GbX o o Fan Model EFX12 EFX20 EFX16 EFX24 EFX30 Fan Diameter Motor Air Flow Rating 70 F 21 C Motor Speed Net Weight Shipping Weight Dimensions Width Height Depth o o 850 CFM 1444 m3 hr 1825 CFM 3101m3 hr 3760 CFM 6388 m3 hr 4180 CFM 7102 m3 hr 12 in 305mm 1 2 HP 60Hz 0 373kW 1725 RPM 48 0 lbs 21 8 kg 56 0 lbs 25 4 kg 16 1 ...

Page 9: ...NOTES ...

Page 10: ...NOTES ...

Page 11: ...NOTES ...

Page 12: ... of parts No warranty applies to paint finishes except for manufacturing defects apparent within 30 days from the date of installation The Company neither assumes nor authorizes any person to assume for it any other obligation or liability in connection with the product s The Purchaser agrees that all warranty work required after the initial commissioning of the product will be provided only if th...

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