Greenheck Fan QEP Class Maximum rpm Maximum rpm  1720, Maximum rpm 1229, 20000 1970 772

Plenum Size XX
36

QEP Class I	Maximum rpm 1047
QEP Class II	Maximum rpm 
QEP Class III	Maximum rpm	1720
QEM	Maximum rpm	1229

Note: Model QEM does not utilize class designations.

QEP Motor on Frame Limit	324T
Minimum Motor Size	11⁄2	[hp]
Wheel Diameter	36.50	[in.]
	927	[mm]
Peak Power	(rpm / 401)3	[hp]
	(rpm / 442)3	[kW]
Wheel Outlet Velocity	cfm / 10.2	[ft/min]
	m3/s / 5.98	[m/s]
Tip Speed	rpm x 9.56	[ft/min]
	rpm x 0.0485	[m/s]
% Wide Open Volume (%WOV)	cfm / (rpm x 0.306)	[%]
	m3/hr / (rpm x 0.520)	[%]

Imperial data — Metric data

Static Pressure (Pa x 100)

30

25

20

15

10

5

0

Static Pressure (in. wg)

14																											75							E		rpm
																																			100
																																				hp
																																		V
																																				% WOV
																																	U	R
12																60																C				Density 0.075 lb/ft3
																															M				60%	Density 1.2 kg/m3
																														E
	25	30	40							50																			T
																												S
																											Y
																										S									1720
10
																									S
																							H	I												70%
	20
																					F	T													1570
8																		F	T	O
	15																E
																L
															E														1365
																																				80%
6														O	T
	10												T										1229
												T
										E	C									1173
	7½								L
4								S E							1047
																																				90%
	5					O	T
					N					864
				O
2	3		D
				686
0			505
			1													2																			3	4	5
0

Volume (cfm x 10,000)

0 1 2 3 4 5 6 7 8

3

Volume (m/hr x 10,000)

											STATIC PRESSURE (in. wg)
CFM	OV	1		2				3				4	5			6			7		8	9
		RPM #)1			RPM #)1		RPM #)1				RPM #)1		RPM #)1			RPM #)1				RPM #)1	RPM #)1	RPM #)1
18000	1773	717	4.73	822		8.10		916	11.7	1001			1083		
20000	1970	772		871		9.29			13.3	1042		17.3	1117		21.6	1192		
22000	2167	828	6.72	922		10.6		1006	14.8	1084		19.3	 23.8			 28.4				1294 33.3	 38.2
24000	2364	886	7.93			12.2		 16.6		1129 21.3			1199 26.2				1266 31.1			1328 36.2	1391 41.4	 46.8
26000		944	9.29	1029		13.9		 18.6		1176 				1243 28.8		1307 34.0			1369 39.3		1427 44.8	 
28000		1004	10.8	1084			 20.7			 				1290 31.4		 37.1			1411 42.7		1468 48.4	 
30000		1063	12.6	1140		17.8		1210	23.1		 			1338 34.2		1397 40.2			 46.3		 	 
32000		1124		1197 20.0				1264 			1328 31.4		1386 37.3			1444 			 49.9		 	 62.9
34000	3349	1184	16.7		 			1320 28.4		1380 			1438 40.7			1493 47.1			 		 	1648 
36000		1246 19.1			1313 		 			1434 37.9			1490 44.3			 			 		 64.8	1694 72.0
38000	3743	1307	21.7	1372		28.1		1432	34.7	1489		41.4	 48.2			 			1644 62.1		1694 69.4
40000	3940	1369	24.6	1431		31.3		1489	38.3	 			 			1647 			 66.8

RPM	807		Inlet Sound Power, L8J <E# SFG -12						XBUUT>
		1	2	3	4		6	7		8	L8JA
	100	79	87	76	68	72	62				76
	80	77	84	73	63	62				49	71
	60	78	83	71	61					48	70
		81	79	70	62	60				49	68
700	100	83		84	76	78	74	68		62	84
	80	81	91	80	71	70	64	62			79
	60	80	90	78	68	67	62				77
		80	91	80	68	67	62	60			78
1000	100	86		100	87		83	78		74	94
	80	86	93	100	83	79		71		68	92
	60	84	93		80		71	68		67	87
		84	96	96	80		71	69		67	89
1300	100	93		101	94	93	88			81	98
	80	88	91	99	90	89	82	77			94
	60	86	89	97	87		77			74	91
		86	92	101	87	83	77	76			94
1720	100	98	101		103	99	96	93		89	
	80	93	97	103	100		91			82	101
	60	91		100	98	92	86	82		80	98
		90	97	104	100	91	86	82		81	100

RPM	807		Outlet Sound Power, L8P <E# SFG -12						XBUUT>
		1	2	3	4		6	7		8	L8PA
	100	77		79	78	78	70	66			81
	80	76			74	73	66	62			77
	60	78	81	73	73	72	63	60			76
		80	80	72	73	72	61				
700	100	79	92		84	83	78			68	87
	80	79	92	83	81	80	72	70		64	84
	60	81	89	84	81	79	71	67		63	83
		89	91	87		82	74	69		64	87
1000	100	84	92	100		91	87	84		79	97
	80	84	90	98	92	87	82	80			94
	60		92		90		80	78		72	92
		88	98	96	91	87	81	78		73	93
1300	100	92	96	104	102	99	93	90		87	104
	80	91	93	102	99		88	84		81	100
	60	93		100		92		82		78	97
		93	98	102		91		82		77	98
1720	100	97	102	107	109	106	102	97		94	111
	80	96	100	104	107	102	97	92		88	107
	60	98	102	104	104	99	94	89		86	
		98	103	107		98	94	89			

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the effects of appurtenances (accessories).

The sound power level ratings shown are in decibels, referred to 10-12XBUUT
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-8J
, L8J
A and outlet L8P
, L8P
A sound power levels for installation type A: Free inlet, Free outlet. The A-weighted sound ratings shown have been calculated per AMCA International Standard 301. Outlet ratings do not include the effects of duct end correction.

The AMCA International Certified Ratings Seal for Sound for model QEM only applies to the single L8J
A and L8P
A values.

24