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No. of Blades | - |
Country of Origin | USA |
Sound Level | 4.5 sones @ 0.125 in SP and 5 ft 4.5 sones @ 0.250 in SP and 5 ft 5.4 sones @ 0.000 in SP and 5 ft |
Included Components | Drive Package with Motor |
No. of Blades |
- |
Country of Origin |
USA |
Sound Level |
4.5 sones @ 0.125 in SP and 5 ft 4.5 sones @ 0.250 in SP and 5 ft 5.4 sones @ 0.000 in SP and 5 ft |
Included Components |
Drive Package with Motor |
Power Consumption |
- |
Current |
2.6/2.3/1.4 A |
Application |
Industrial and Commercial Applications |
Frequency |
60 Hz |
Phase |
1 |
Type of Product |
Centrifugal Downblast Roof Exhaust Fan |
Standard |
AMCA Sound and Air CSA UL/cUL 705 |
Item Code |
4YC66 |
Speed |
1050 RPM |
Sweep Size |
- |
Color |
- |
Motor Speed |
1,550 RPM |
UNSPSC Code |
40101502 |
Features |
Features a Fully Rolled Windband Bead for Increased Stability and Easy Transport Fresh Outside Air is Drawn in Under the Motor Cover to Maximize Motor Life Nema 1 Junction Box Located in Motor Enclosure Nonoverloading Centrifugal Wheel Design Optional Nema 1 and 4 Disconnects Available |
No. Of Speeds |
1 |
Mount Type |
Roof Curb |
Nameplate Voltage |
115 V AC |
Overall Length |
21-3/4 inch |
Mounting Location |
Roof |
Housing Material |
Aluminum |
Overall Diameter |
21-3/4 inch |
Overall Height |
13-7/8 Inch |
Overall Width |
55.25 cm |
Damper Size |
12x12 inch |
Base Height |
4.4 cm |
Base Shape |
Square |
Housing Width |
21.8 inch |
Base Width |
48.26 cm |
Assembly |
Assembled |
Base Length |
19 inch |
Speed Control |
48C172 |
Drive Type |
Direct Drive |
Motor Enclosure |
Open Air Over |
Electrical Connections |
Power Cord |
Wheel Material |
Aluminchum |
Mounting Orientation |
Vertical |
Spark Resistant Construction Type |
A |
Maximum Ambient Temperature |
130 °F |
Air Type |
Clean Air |
High-Efficiency Motor |
No |
Brake Horsepower |
1/25 hp |
Wheel Type |
Backward inchclinched |
Housing Length |
21.8 inch |
Wheel Diameter |
10-1/2 inch |
Motor Location |
Out of Airstream |
Exhaust Airflow @ 0.000 in SP |
717 cfm |
Compatible Grainger Part Number |
2RB75 2ZV82 4C453 4C670 4HX38 4HX46 4HX64 |
Exhaust Airflow @ 0.125 in SP |
570 cfm |
Housing Material Fabrication |
Spun |
Exhaust Airflow @ 0.250 in SP |
389 cfm |
Horse Power |
1/8 hp |
Pressure Static |
1/4 inch wc |
Maximum Fan Speed |
1,050 RPM |
Maximum Inlet Air Temperature |
130 °F |
Speed Control Method |
Variable Speed |
Overall Height (cm) |
35.24 cm |
Overall Height (mm) |
352.43 mm |
Overall Length (cm) |
55.25 cm |
Overall Width (mm) |
552.45 mm |
Overall Diameter (mm) |
552.45 mm |
Wheel Diameter (mm) |
266.7 mm |