Standard Construction Features

1Fan Shaft - Is 1-inch minimum in diameter and is precisely sized, ground, and polished so the first critical speed is at least 25% over the maximum operating speed, which results in longer fan life.

2Bearings - Lubricatable cast pillow block and are air handling quality extended life L10 > 100,000 hours (L50 average life > 500,000 hours)

3True Vibration Isolation - Lowers sound levels and reduces vibration, which increases the fans life since true vibration has no steel to steel contact.

4Clean Out Port - Allows the outside of the wheel to be cleaned through a four-inch diameter removable plug in the windband.

5Non-Stick Coated Steel Wheel - Heavy weight steel wheel with a dry lubricate coating eliminates imbalance in heavy grease applications. The steel wheel is a backward- inclined, non-overloading centrifugal type.

6Drain Trough - All grease and water is collected at one-point for easy disposal.

7Curb Cap with Mounting Holes - Prepunched mounting holes in the steel curb cap to ensure correct attachment to the roof.

8Hinged Curb Cap with Cables - Allows entire fan to tilt away for access to wheel and ductwork for inspection and cleaning. Shipped for field assembly.

9Leakproof Construction - One-piece fully welded windband to curb cap. Assures no grease will leak onto roof through the fan’s seams.

10Drive Assembly - Dual belts, pulleys, and keys are oversized 150% of driven horsepower. Machined cast steel pulleys are adjustable for final system balancing. Belts are static free and oil resistant.

11Motor Cover - Is easily removed for access to the steel motor compartment and drive assembly.

12Powder Coated - Unit is constructed of a minimum of 16 gauge galvaneal steel. Entire unit is powder coated with a chemical resistant Permatector finish.

13Motor - Carefully matched to the fan load and is mounted out of air stream.

14Windband - Unique spun from galvaneal steel achieves superior strength & consistent material thickness.

15Nema-3R Disconnect Switch Mounted & Wired - Motor and switch are prewired to specified voltage.

16Motor Cooling Tube - Maximum motor life is achieved through positive motor cooling with fresh outside air being continuously drawn through the large breather tube directly over the motor.

17Name Plate - Exact model and serial identification on a permanent stamped aluminum plate.

18Heat Baffle - Extends motor life by reducing the amount of heat that penetrates through the bottom of the motor support pan.

19Lifting Lugs - Located under motor compartment for ease of lifting unit during installation.

1		11
	10	11
	10

4	13	14
4

3		16	15
	19	16

8	18

517