Greenheck Fan manual GB-360, Maximum BHP AT a Given RPM = RPM/394

Roof Downblast - Exhaust Belt Drive

GB-360

583⁄4

(1492)

*381⁄2	(Pa)Pressure
(978)
87⁄8 (225)	Static
13⁄4 (44)

46

(1168)

Damper Size = 36 x 36 (914 x 914) Roof Opening = 381/2 x 381/2 (978 x 978) Shroud Thickness = 0.080 (2.0) Motor Cover Thickness = 0.064 (1.6) Curb Cap Thickness = 0.080 (2.0) ^Approximate Unit Weight = 415 lbs. (188 kg)

All dimensions in inches (millimeters).. *May be greater depending on motor. ^Weight shown is largest cataloged Open Drip-Proof motor.

RPM (Belt)

HP

Density 0.075 lb/ft3

Density 1.2 kg/m3

wg)

E

V

C

U

R

(in.

M

T

E

Pressure

S

Y

S

S

I

H

F

T

Static

T

O

L

E

F

E

T

H

O

T

T

C

E

L

E

S

T

O

N

O

D

Volume (cfm x 1000)

Volume (m3/hr x 1000)

Motor	Fan					Static Pressure in Inches wg
HP	RPM		0	0..125	0..25	0..375	0..5	0..625		0..75		1	1..25	1..5
360
		CFM	8024	7070	5804
	300	BHP	0..40	0..43	0..44				MAXIMUM BHP AT A GIVEN RPM = (RPM/394)3
		Sones	7..6	6..6	5..6
1/2											MAXIMUM RPM = 685
		CFM	8693	7830	6756	5001
										TIP SPEED (ft/min) = RPM x 9.425
	325	BHP	0..51	0..54	0..56	0..51
									MAXIMUM MOTOR FRAME SIZE = 215T
		Sones	8..7	7..7	6..8	5..6
		CFM	9763	9024	8109	7013
3/4	365	BHP	0..72	0..76	0..79	0..78
		Sones	10..8	10..0	8..9	7..9
		CFM	10966	10330	9558	8686	7641
1	410	BHP	1..02	1..07	1..11	1..12	1..11
		Sones	13..7	13..3	11..9	10..9	9..6
		CFM	12304	11737	11085	10360	9568	8607			7096
11⁄2	460	BHP	1..45	1..50	1..55	1..58	1..59	1..56			1..46
		Sones	15..9	15..6	14..8	14..1	13..1	12..1			10..9
		CFM	12919	12379	11776	11109	10355	9517			8488
	483	BHP	1..67	1..73	1..78	1..82	1..83	1..83			1..78
2		Sones	17..0	16..7	16..1	15..5	14..8	13..7			12..9
		CFM	13507	12991	12431	11795	11096	10368			9473
	505	BHP	1..91	1..97	2..02	2..07	2..09	2..10			2..07
		Sones	18..1	17..8	17..3	16..8	16..5	15..5			14..7
		CFM	14524	14043	13551	12959	12350	11679			10965	8917
	543	BHP	2..38	2..44	2..5	2..55	2..59	2..60			2..60	2..46
3		Sones	20	19..8	19..4	18..9	18..6	17..8			16..9	15..6
		CFM	15513	15064	14614	14077	13523	12917			12289	10813
	580	BHP	2..90	2..96	3..03	3..09	3..14	3..17			3..18	3..13
		Sones	22	22	22	21	21	20			19..1	17..6
		CFM	16931	16519	16107	15654	15146	14639			14072	12892	11465
	633	BHP	3..77	3..84	3..91	3..98	4..04	4..10			4..12	4..13	4..05
5		Sones	26	25	25	24	24	23			23	21	19..7
		CFM	18322	17941	17560	17179	16711	16243			15774	14710	13535	12119
	685	BHP	4..77	4..85	4..93	5..01	5..07	5..14			5..20	5..23	5..21	5..10
		Sones	30	30	29	29	28	28			26	24	23	22

Performance certified is for installation type A: Free inlet, Free outlet. Power rating (BHP) does not include transmission losses. Performance ratings include the effects of a birdscreen. The sound ratings shown are loudness values in hemispherical sones at 5 ft. (1.5 m) in a hemispherical free field calculated per AMCA Standard 301. Values shown are for installation type A: free inlet hemispherical sone levels.

41