Trane manual Table P-3 Size 21 Q-Fan

								Performance												Q Fan and
								Data												Super Q II
																				Size 21
Fan Size 21”
								Pressure Class Limits												Minimum Fan RPM (Without VFRB Option)
Wheel Dia.		21.5 inches			546 mm					Class			Maximum RPM									Motor		Minimum Fan RPM
Inlet Area		3.31 square feet			0.308 m2						I			2070							1800 RPM				380
Outlet Area		2.88 square feet			0.268 m2						II			2780							1200 RPM				253
Tip Speed		5.63 x RPM			1.716						III			3740
		ft./minute			m/minute
Table P-3 — Size 21 Q-Fan
CFM	Out-											Total Static Pressure
Std.	let	1/4”		3/8”		1/2”				5/8”		3/4”				1”			1 1/4”			1 1/2”		1 3/4”		2”
Air	Vel.	RPM	BHP	RPM BHP		RPM	BHP			RPM	BHP	RPM	BHP			RPM	BHP	RPM		BHP		RPM	BHP	RPM	BHP	RPM	BHP
2600	902	810	0.20	859	0.25	908	0.31	957			0.38	1001	0.44	1096			0.58	1197		0.74
2800	972	859	0.23	903	0.29	949	0.35	995			0.42	1039	0.48	1121			0.62	1214		0.79	1308		0.96
3000	1041	909	0.26	949	0.33	991	0.39	1034			0.46	1077	0.53	1155			0.67	1236		0.83	1323		1.02	1411	1.20
3200	1111	959	0.30	996	0.37	1035	0.44	1075			0.51	1116	0.58	1194			0.74	1265		0.89	1344		1.07	1426	1.27	1507	1.46
3400	1180	1011	0.35	1045	0.41	1081	0.48	1118			0.56	1156	0.64	1231			0.80	1302		0.96	1369		1.13	1445	1.34	1523	1.53
3600	1250	1062	0.40	1094	0.47	1128	0.54	1163			0.61	1198	0.70	1270			0.86	1339		1.04	1401		1.21	1469	1.40	1541	1.62
3800	1319	1115	0.45	1145	0.52	1176	0.60	1208			0.68	1242	0.76	1309			0.93	1376		1.11	1440		1.30	1499	1.48	1564	1.69
4000	1388	1167	0.51	1196	0.59	1225	0.66	1255			0.74	1286	0.83	1350			1.01	1415		1.20	1477		1.39	1537	1.58	1592	1.78
4200	1458	1220	0.58	1247	0.65	1274	0.73	1303			0.82	1332	0.90	1393			1.09	1454		1.28	1515		1.48	1573	1.68	1626	1.88
4400	1527	1273	0.65	1299	0.73	1325	0.81	1352			0.90	1379	0.99	1436			1.17	1495		1.37	1553		1.58	1610	1.79	1665	2.01
4600	1597	1327	0.73	1351	0.81	1376	0.89	1401			0.98	1427	1.07	1481			1.27	1536		1.47	1593		1.69	1648	1.91	1702	2.12
4800	1666	1380	0.81	1403	0.90	1427	0.98	1451			1.07	1476	1.17	1527			1.37	1580		1.58	1633		1.80	1687	2.02	1739	2.25
5000	1736	1434	0.90	1456	0.99	1479	1.08	1502			1.17	1525	1.27	1573			1.47	1624		1.69	1675		1.91	1727	2.15	1778	2.38
5200	1805	1488	1.00	1509	1.09	1531	1.18	1553			1.28	1575	1.38	1621			1.59	1669		1.80	1718		2.03	1767	2.27	1817	2.52
5400	1875	1542	1.11	1562	1.20	1583	1.30	1604			1.39	1625	1.50	1669			1.71	1715		1.93	1762		2.16	1809	2.41	1857	2.66
5600	1944	1596	1.22	1616	1.32	1636	1.41	1656			1.52	1676	1.62	1718			1.84	1761		2.06	1806		2.30	1852	2.55	1898	2.81
5800	2013	1651	1.34	1669	1.44	1688	1.54	1708			1.65	1727	1.75	1768			1.97	1809		2.21	1852		2.45	1895	2.70	1940	296
6000	2083	1705	1.47	1723	1.57	1741	1.68	1760			1.78	1779	1.89	1817			2.12	1857		2.36	1898		2.60	1940	2.86	1982	3.13
6200	2152	1759	1.61	1777	1.71	1795	1.82	1813			1.93	1831	2.04	1868			2.27	1906		2.52	1945		2.77	1986	3.03	2026	3.30
6400	2222	1814	1.76	1831	1.86	1848	1.97	1865			2.09	1883	2.20	1919			2.44	1955		2.68	1993		2.94	2031	3.21	2071	3.48
6600	2291	1869	1.91	1885	2.02	1902	2.14	1918			2.25	1935	2.37	1970			2.61	2005		2.86	2041		3.12	2078	3.39	2116	3.67
6800	2361	1923	2.08	1939	2.19	1955	2.31	1971			2.43	1988	2.55	2021			2.79	2055		3.05		2090	3.32	2125	3.59	2162	3.87
7000	2430	1978	2.25	1993	2.37	2009	2.49	2025			2.61	2041	2.73			2073	2.99	2106		3.25		2139	3.52	2173	3.80	2208	4.09
7200	2500	2033	2.44	2048	2.56	2063	2.68			2078	2.80	2093	2.93			2125	3.19	2156		3.45	2189		3.73	2222	4.01	2256	4.31
CFM	Out-											Total Static Pressure
Std.	let	2 1/4”		2 1/2”		3”				3 1/2”		4”				4 1/2”			5”			5 1/2”		6”		6 1/2”
Air	Vel.	RPM	BHP	RPM BHP		RPM	BHP			RPM	BHP	RPM	BHP			RPM	BHP	RPM		BHP		RPM	BHP	RPM	BHP	RPM	BHP
3600	1250	1615	1.83	1687	2.06
3800	1319	1633	1.92	1703	2.14
4000	1388	1656	2.01	1721	2.25	1852	2.73
4200	1458	1682	2.10	1743	2.35	1868	2.85
4400	1527	1715	2.21	1769	2.44	1887	2.97	2007			3.49
4600	1597	1754	2.35	1801	2.56	1910	3.08	2023			3.64	2137	4.19
4800	1666	1791	2.48	1840	2.72	1935	3.19	2043			3.77	2153	4.33		2261		4.94
5000	1736	1828	2.62	1877	2.86	1966	3.34	2067			3.91	2170	4.51		2276		5.09
5200	1805	1866	2.77	1914	3.01	2001	3.50		2092		4.04	2192	4.66		2292		5.29	2394		5.90
5400	1875	1904	2.92	1951	3.17	2042	3.69		2124		4.20	2215	4.80		2312		5.46	2410		6.09		2507	6.76
5600	1944	1944	3.07	1989	3.34	2078	3.87			2158	4.39	2243	4.97		2335		5.63	2428		6.31		2522	6.96	2615	7.66
5800	2013	1984	3.23	2029	3.51	2116	4.06			2199	4.62	2275	5.16		2359		5.79	2449		6.50		2539	7.20	2631	7.87	2720	8.61
6000	2083	2026	3.40	2069	3.68	2153	4.26			2236	4.83	2310	5.38		2388		5.99	2471		6.66		2559	7.41	2646	8.14	2735	8.83
6200	2152	2067	3.58	2109	3.87	2192	4.46			2273	5.04	2351	5.65		2421		6.22	2499		6.88		2582	7.62	2666	8.37	2751	9.12
6400	2222	2111	3.77	2151	4.06	2231	4.66			2311	5.26	2388	5.88		2461		6.51	2529		7.11		2606	7.81	2688	8.60	2769	9.37
6600	2291	2154	3.96	2193	4.26	2272	4.87			2349	5.50	2425	6.12		2498		6.77	2563		7.37		2635	8.05	2710	8.79	2791	9.62
6800	2361	2199	4.17	2236	4.47	2312	5.09			2388	5.74	2462	6.37		2535		7.03	2604		7.70		2667	8.33	2738	9.05	2815	9.87
7000	2430	2244	4.38	2281	4.69	2354	5.32			2428	5.98	2500	6.65		2572		7.31	2641		7.99		2702	8.62	2769	9.33	2839	10.09
7200	2500	2290	4.61	2325	4.92	2396	5.56			2468	6.23	2539	6.91		2609		7.59	2678		8.29		2744	8.99	2803	9.64	2869	10.39
7400	2569	2336	4.85	2371	5.16	2439	5.81			2509	6.49	2579	7.19		2647		7.90	2715		8.59		2780	9.31	2844	10.04	2901	10.71
7600	2638	2384	5.09	2416	5.41	2483	6.07			2550	6.76	2619	7.47		2686		8.20	2752		8.90		2817	9.64	2880	10.38	2936	11.06
7800	2708	2431	5.35	2463	5.67	2528	6.34			2593	7.04	2659	7.76		2725		8.50	2790		9.25		2855	9.98	2917	10.74	2978	11.50
8000	2777	2479	5.62	2510	5.95	2573	6.63			2636	7.33	2701	8.06		2765		8.82	2829		9.58		2892	10.32	2954	11.10	3014	11.88
8200	2847	2528	5.90	2558	6.24	2619	6.92			2680	7.64	2742	8.38		2806		9.14	2868		9.92		2930	10.71	2991	11.47	3051	12.26
CFM	Out-											Total Static Pressure
Std.	let	7”		7 1/2”		8”				8 1/2”		9”				9 1/2”			10”			10 1/2”		11”		11 1/2”
Air	Vel.	RPM	BHP	RPM BHP		RPM	BHP			RPM	BHP	RPM	BHP			RPM	BHP	RPM		BHP		RPM	BHP	RPM	BHP	RPM	BHP
6000	2083	2821	9.60
6200	2152	2836	9.84	2919	10.64
6400	2222	2851	10.15	2934	10.89	3015	11.71
6600	2291	2870	10.42	2951	11.16	3030	11.98			3108	12.83
6800	2361	2891	10.68	2967	11.51	3046	12.27			3123	13.11	3199	13.99
7000	2430	2914	10.95	2988	11.79	3063	12.64			3139	13.43	3214	14.29
7200	2500	2937	11.18	3011	12.08	3083	12.95			3155	13.82	3230	14.62
7400	2569	2966	11.49	3033	12.32	3105	13.25			3175	14.15
7600	2638	2997	11.83	3061	12.64	3127	13.50			3197	14.47
7800	2708	3031	12.19	3092	12.99	3154	13.84			3222	14.80
8000	2777	3073	12.66	3125	13.37	3184	14.21
8200	2847	3110	13.07	3160	13.78	3217	14.60
8400	2916	3146	13.48	3203	14.30
8600	2986	3183	13.90	3239	14.74
8800	3055	3220	14.32
9000	3125	3258	14.76
Performance based on 0.075 lbs. per cubic foot density (air at 70 F and 29.92 Hg Bar). Performance shown is for installationType B: free inlet, ducted outlet.
Power rating (BHP) does not include drive losses. Performance ratings do not include the effects of appurtenances in the airstream.
When inlet vanes are used increase rpm 1 percent and brake horsepower 3 percent.												26
Fan tables cover part of fan operating range; fan curves show full operating range.