About Sound Levels
Measured in decibels (dB), volume ratings indicate how much noise equipment makes. Some common volume levels include a whisper @ 20 dB, a refrigerator @ 40 dB, a conversation @ 60 dB, and a light machine shop @ 90 dB. OSHA recommends hearing protection for exposure to 80 dB and greater.
About Exhaust Fans
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Collars for Wall-Mount Exhaust Fans
Connect your wall-mount exhaust fan to a louver. One side of the collar fits around your exhaust fan and the other includes a flange for mounting a louver. Overall height and width include the mounting flange.
Note: To be compatible with the fan, the collar must be larger than the overall fan dimensions. To be compatible with the louver, the collar's For Louvers That Fit Opening Height and Width must match the louver's For Opening Width and Height.
For Fan Overall | For Louvers That Fit Opening | For Opening | Overall | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ht. | Wd. | Ht. | Wd. | Ht. | Wd. | Ht. | Wd. | Dp. | Mounting Flange Wd. | Material | Each | |
| 60" | 60" | 56 3/4" | 56 3/4" | 61" | 61" | 63 1/2" | 63 1/2" | 23" | 1 1/4" | Galvanized Steel | 0000000 | 0000000 |
Direct-Drive Upblast Roof-Mount Exhaust Fans
Direct-drive fans have fewer moving parts than belt-drive fans for less maintenance. These exhaust fans draw stagnant and humid air out through your roof and then expel it up and away from the roof surface. All fans have a disconnect switch to turn off the power for servicing.
Note: Airflow depends on the resistance created by ductwork. This resistance, known as static pressure (SP), is measured in inches of water.
Fans | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Overall | Mounting Bases | ||||||||||||||
| Blade Dia. | Airflow @ Static Pressure | Volume | Motor Speed, rpm | Power, hp | Dia. | Ht. | Base Wd. | Wt., lbs. | Max. Ambient Temp., °F | Housing Material | Each | Each | |||
Totally Enclosed Motor Enclosure | |||||||||||||||
460V AC, Three Phase—Hardwire | |||||||||||||||
| 2 | 54" | 34,150 cfm @ 1/2 in. of H₂O 44,700 cfm @ 0 in. of H₂O | 88 dBA @ 5 ft. | 1,125 | 7 1/2 | 62" | 63 1/2" | 64 1/4" | 628 | 120° | Steel | 0000000 | 000000000 | 00000000 | 0000000 |
| 2 | 60" | 40,500 cfm @ 1/2 in. of H₂O 57,000 cfm @ 0 in. of H₂O | 97 dBA @ 5 ft. | 1,125 | 10 | 68" | 63 1/2" | 70 1/4" | 640 | 120° | Steel | 0000000 | 00000000 | 00000000 | 000000 |