Hired-Hand External Damper Fans - Manual (Page 4)

Part No. 4801-5402 Rev. 2/09 Mega-Flow External Damper Fans & Cone Page 4 of 13
1. Table of Contents
Section Description Page
1. Warnings ........................................................................................................................................................ 2
2. Limited Warranty ............................................................................................................................................ 3
3. Table of Contents ........................................................................................................................................... 4
4. External Damper Fan Mounting Instructions.................................................................................................. 4
5. Assemble Fan ................................................................................................................................................ 4
6. Assemble Cone .............................................................................................................................................. 6
2. External Damper Fan Mounting Instructions
Diagram 1 – Framing Diagram
See Fan Spacing
Dimensions in
Diagram 2 Below INTAKE
SIDE
EXHAUST
ORIFICE
SIDE
Width
Rough Opening
Height
Diagram 2 – Fan Spacing with Cone
Fan Housing Cone
Center-to-Center
Spacing
Fan Size Spacing
36" 50" (127.0 cm)
48" 63” (160.1 cm)
52” 68” (172.7cm)
54” 75” (190.5cm)
Fan Size Fan Model Width Height
36" Mega Flow External Damper 43.00” (109.22 cm) 43.00” (109.22 cm)
48” Mega Flow External Damper 55.00” (139.70 cm) 55.00” (139.70 cm)
52" Mega Flow External Damper 57.00” (144.78 cm) 57.00” (144.78 cm)
54" Mega Flow External Damper 60.88” (154.62 cm) 60.88” (154.62 cm)