York DM090 installation manual 035-17311-003-A-0704, Unitary Products Group

Blower performance for gas heat includes maximum number of heat tubes available for each tonnage.

Blower performance for gas heat includes maximum number of heat tubes available for each tonnage.

035-17311-003-A-0704

TABLE 17: 7-1/2 TON STANDARD MOTOR DOWN SHOT BLOWER PERFORMANCE* †

								TURNS OPEN**
ESP‡		0			1			2			3			4			5
	CFM	W††	BHP	CFM	W††	BHP	CFM	W††	BHP	CFM	W††	BHP	CFM	W††	BHP	CFM	W††	BHP
0.2	-	-	-	3715	1573	1.69	3634	1434	1.54	3431	1265	1.36	3218	901	0.97	3024	976	1.05
0.4	3650	1657	1.78	3510	1490	1.60	3320	1313	1.41	3079	1145	1.23	2832	810	0.87	2586	860	0.92
0.6	3334	1522	1.63	3146	1351	1.45	2910	1169	1.25	2621	1005	1.08	2307	706	0.76	-	-	-
0.8	2903	1352	1.45	2622	1167	1.25	2404	1013	1.09	2054	858	0.92	-	-	-	-	-	-
1.0	2356	1159	1.24	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

*.

†.Blower performance includes two-inch throwaway filters.

‡.ESP (External Static Pressure) given is that available for the supply and return air duct system. All internal resistances have been deducted from the total static pressure of the blower.

**. “Turns Open” refers to the setting of the variable pitch motor sheave, where “0 Turns Open” is fully closed.

††.W = Watts

TABLE 18: 7-1/2 TON OPTIONAL MOTOR DOWN SHOT BLOWER PERFORMANCE* †

									TURNS OPEN**
ESP‡		0			1			2				3			4			5
	CFM	W††	BHP	CFM	W††	BHP	CFM	W††		BHP	CFM	W††	BHP	CFM	W††	BHP	CFM	W††	BHP
0.2	-	-	-	-	-	-	-	-		-	-	-	-	3992	1904	2.04	3798	1679	1.80
0.4	-	-	-	-	-	-	-	-		-	3930	2017	2.16	3734	1786	1.92	3486	1552	1.66
0.6	-	-	-	-	-	-	3947	2176		2.33	3670	1895	2.03	3394	1641	1.76	3084	1401	1.50
0.8	-	-	-	4138	2384	2.56	3623	2009		2.15	3323	1742	1.87	2971	1477	1.58	2591	1236	1.33
1.0	4126	2430	2.61	3643	2145	2.30	3224	1820		1.95	2889	1569	1.68	2466	1306	1.40	-	-	-
1.2	3613	2238	2.40	3143	1921	2.06	2748	1621		1.74	2369	1385	1.49	-	-	-	-	-	-
1.4	3099	2039	2.19	2636	1714	1.84	2195	1424		1.53	-	-	-	-	-	-	-	-	-
1.6	2586	1833	1.97	-	-	-	-	-		-	-	-	-	-	-	-	-	-	-

*.

†.Blower performance includes two-inch throwaway filters.

‡.ESP (External Static Pressure) given is that available for the supply and return air duct system. All internal resistances have been deducted from the total static pressure of the blower.

**. “Turns Open” refers to the setting of the variable pitch motor sheave, where “0 Turns Open” is fully closed.

††.W = Watts

Unitary Products Group 25