Lennox International Inc Merit Series Gas Furnace 1391, 860, 653, 1359, 841, 651, 1329, 823, 649

BLOWER DATA

ML180UH110P48C PERFORMANCE (Less Filter)

External	Air Volume / Watts at Various Blower Speeds
Static	High	Medium-	Medium-	Low
Pressure		High	Low
in. w.g.	cfm Watts cfm Watts		cfm Watts cfm Watts

0.002170 980 1845 792 1565 678 1270 564

0.102125 919 1820 747 1555 648 1300 540

0.202080 862 1790 705 1540 619 1335 516

0.302015 807 1745 652 1545 587 1335 498

0.401940 748 1695 629 1505 552 1320 470

0.501850 716 1635 581 1470 523 1295 449

0.601775 679 1575 560 1395 484 1235 417

0.701680 637 1470 508 1320 450 1170 387

0.801560 592 1350 469 1205 404 1050 345

0.901425 546 1190 424 1060 362 910 307

ML180UH110P60C PERFORMANCE (Less Filter)

External					Air Volume / Watts at Different Blower Speeds
	Bottom Return Air, Side Return Air with Optional Return								Single Side Return Air − Air volumes in bold require field
Static	Air Base, Return Air from Both Sides or Return Air from								fabricated transition to accommodate 20 x 25 x 1 in. air filter
Pressure Bottom and One Side.									in order to maintain proper air velocity.
in. w.g.	High		Medium-High Medium-Low				Low		High		Medium-High Medium-Low				Low
	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts
0.00	2575	1391	2270	1050	1845	860	1430	661	2715	1509	2175	1103	1695	858	1410	653
0.10	2520	1359	2250	1034	1860	841	1455	654	2605	1454	2160	1060	1740	848	1430	651
0.20	2465	1329	2230	1018	1870	823	1480	647	2505	1401	2150	1018	1785	838	1450	649
0.30	2385	1307	2180	981	1885	809	1540	646	2435	1349	2115	991	1795	818	1485	638
0.40	2295	1256	2105	942	1865	778	1570	638	2350	1308	2070	965	1805	801	1480	631
0.50	2200	1214	2055	909	1845	762	1570	619	2260	1274	2010	929	1785	775	1480	621
0.60	2130	1186	1985	882	1795	741	1550	604	2175	1228	1955	901	1755	752	1490	611
0.70	2015	1150	1890	848	1720	711	1505	580	2085	1186	1850	853	1710	722	1460	594
0.80	1905	1105	1810	815	1675	687	1470	565	1965	1147	1785	818	1640	689	1425	567

0.901795 1054 1710 779 1545 647 1375 533 1830 1094 1700 794 1555 662 1355 545

ML180UH135P60D PERFORMANCE (Less Filter)

External					Air Volume / Watts at Different Blower Speeds
	Bottom Return Air, Side Return Air with Optional Return								Single Side Return Air − Air volumes in bold require field
Static	Air Base, Return Air from Both Sides or Return Air from								fabricated transition to accommodate 20 x 25 x 1 in. air filter
Pressure	Bottom and One Side.								in order to maintain proper air velocity.
in. w.g.	High		Medium-High		Medium-Low		Low		High		Medium-High		Medium-Low		Low
	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts	cfm	Watts
0.00	2785	1492	2205	1083	1665	840	1345	632	2810	1528	2185	1100	1705	835	1260	622
0.10	2750	1441	2220	1056	1725	825	1395	625	2725	1463	2180	1075	1715	827	1320	624
0.20	2720	1392	2235	1029	1785	810	1445	618	2640	1400	2180	1051	1720	819	1380	626
0.30	2605	1362	2220	1002	1820	800	1460	623	2575	1374	2165	1005	1790	803	1420	622
0.40	2495	1312	2185	968	1845	779	1485	616	2495	1343	2145	988	1775	791	1450	617
0.50	2420	1275	2135	939	1825	767	1505	605	2405	1292	2105	948	1780	777	1470	610
0.60	2335	1234	2080	909	1825	753	1495	593	2305	1257	2045	914	1775	753	1480	593
0.70	2220	1190	1995	864	1760	716	1475	576	2215	1214	1970	884	1740	727	1455	583
0.80	2120	1157	1890	835	1680	686	1435	558	2110	1170	1890	851	1675	699	1430	565
0.90	1985	1102	1790	794	1605	656	1390	536	1985	1122	1790	811	1600	667	1380	543

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