Greenheck Fan QEP, QEM manual Plenum Size

Plenum Size 12

QEP Class I	Maximum rpm 2991
QEP Class II	Maximum rpm	3064
QEM	Maximum rpm	

Note: Model QEM does not utilize class designations.

QEP Motor on Frame Limit	184T
Minimum Motor Size	1/3 [hp]
Wheel Diameter	15.00	[in.]
	381	[mm]
Peak Power	(rpm / 2097)3	[hp]
	(rpm / 2312)3	[kW]
Wheel Outlet Velocity	cfm / 1.12	[ft/min]
	m3/s / 0.66	[m/s]
Tip Speed	rpm x 3.93	[ft/min]
	rpm x 0.0199	[m/s]
% Wide Open Volume (%WOV)	cfm / (rpm x 0.0126)	[%]
	m3/hr / (rpm x 0.0214)	[%]

Imperial data — Metric data

Static Pressure (Pa x 100)

25

20

15

10

5

0

Static Pressure (in. wg)

12																												rpm
		5																								7½		hp
																									E			% WOV
																													3
																									V			Density 0.075 lb/ft
10																								CU	R
		3																					M			60%		Density 1.2 kg/m3
																						E
																						T
																				S	Y	S
																										3900
8
																				H
	2																		T	IS
																	O	F									70%
															F	T
														LE												3510
	1½
6												H	E
											T
										O																		80%
								T	T													2991
	1					L E	C
4						E
	¾			N	O	T
			O								2400
	½	D
																												90%
			1905
	⁄3
2	1
		1453
0		1														2										3		4	5
0
								Volume (cfm x 1000)
0		2																						4			6	8

Volume (m3/hr x 1000)

								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
2100		1971 0.64		2213 		2449 		2668 2.01		 		3049 3.07				3222 3.61
2200	1964	2040	0.69	2277	1.12	 1.60		2716 2.11		2912 		3093 3.20				3264 3.76		 4.34
2300		2109		2342 1.19		 1.68		 2.21		2960 2.76		3139 3.33				3307 3.92		3467 			3619 
2400	2142	2178	0.81	2407	1.27	2614	1.77	2814	2.32	3008	2.88	3186			3.46	 4.08		 4.68			3661 
	2232	2248	0.88	2473		2670 1.86		2869 2.42		 3.00		3233 3.60				3398 4.22			 4.86	3704 
2600	2321	2319		 1.44		2728 		2923 		 3.13		3281 3.74				 4.38			 	3747 
2700	2410	2391	1.03	2606		2793 2.06		2979 2.64		 3.26		3329 3.89				3492 			 	3790 
2800		2464	1.11	2673	1.63	 2.17		3034 		3210 3.39		3378			4.04		 4.70		3692 	3836 6.09
2900		 1.19		2741 1.73		2923 2.28		3091 2.87		 		3427			4.19		 4.87	3740 		3883 6.29
3000	2678	2610	1.28	2809	1.83	2988	2.40	3149	3.00	3320	3.66	3480					3637 	3788 
3100	2767	2684	1.38	2877	1.94			3213	3.14	 3.80			 			3686 		3836 
3200		 1.48		2946 2.06		3121	2.66	3278	3.29	3432 			 4.67			3737 		 

RPM	807		Inlet Sound Power, L8J <E# SFG -12						XBUUT>
		1	2	3	4		6	7		8	L8JA
1200	100	76	70	73	66	62	62			47	70
	80		68	68	63	61	60				67
	60	77	69	72	63					46	67
		77	69	74	63					47	68
1600	100	82	72	74	72	67		64			74
	80	77	71	73	70	64	64	61			72
	60		69	73	70	62	61				71
			70	74	70	62	60	60			71
2200	100	86	77	74	84	74	73	71		70	83
	80	86	78	74		71	71	69		64	83
	60	84	77		82	70	70	67		64	81
			77	79	81	70	68	67		64	80
2900	100	80	82	80	86	79	79	78		78	87
	80	77	81	79	89	77	78	77		74	88
	60	76	79	79	87	77	77			71	86
		77	79	80	88	77		74		72	86
3900	100	86	90	89	90	90				84	94
	80	82	88	88	92	91	84	84		81	94
	60	81	86	87	91	89	83	82		79	93
		82	87	88	91	90	82	81		80	94

RPM	807		Outlet Sound Power, L8P <E# SFG -12						XBUUT>
		1	2	3	4		6	7		8	L8PA
1200	100	72	67	73	67	66		64			72
	80	71	66	71	66			61			71
	60	70	67	70	66	64		61			71
		70	67	70	66	63		60			71
1600	100	78	70	74	73	72	71	69		63	78
	80	77	69	74	72	70	69	68		61	76
	60	77	69	72	74	68	69	66		61	76
		78	70		73	68	68	66		62	76
2200	100	79	72		80	80	79	78			
	80	83	73	74	79	77	77	74		71	83
	60	83	73	74	79	76	76	73		70	82
		81	74	78	78	76		72		70	82
2900	100	87	81	80	86			84		84	91
	80	88	82	81		82	82	82		79	89
	60	90	81	82		82	81	81		77	88
		91	83	82	87	82	81	79		77	89
3900	100	92	92	89	90	93	91	91		90	98
	80	93	94	89	91	91	89	88		87	96
	60	96	94	89	91	91	88	88			96
		96		90	92	92	88	87		84	96

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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.

14