York R-410A Additional Static Resistance Continued, Electric Heat Minimum Supply Air, Tons

288429-YIM-A-0307

Table 9: Additional Static Resistance (Continued)

Size	Model	CFM	Wet Indoor Coil	Economizer1	Filter/Frame Kit	Electric Heat
(Tons)
		1100	0.03	0.01	0.03	0.05
042		1200	0.04	0.02	0.03	0.06
	DEX	1300	0.04	0.03	0.03	0.07
(3.5)		1400	0.04	0.04	0.03	0.08
		1500	0.05	0.05	0.04	0.09
		1600	0.06	0.06	0.05	0.10
		1100	0.03	0.01	0.03	0.05
		1200	0.04	0.02	0.03	0.06
		1300	0.04	0.03	0.03	0.07
048		1400	0.04	0.04	0.03	0.08
	DEX	1500	0.04	0.05	0.04	0.09
(4.0)		1600	0.04	0.06	0.05	0.10
		1700	0.05	0.07	0.05	0.11
		1800	0.05	0.07	0.06	0.11
		1900	0.06	0.08	0.06	0.11
		2000	0.07	0.08	0.07	0.12
		1100	0.03	0.01	0.03	0.05
		1200	0.04	0.02	0.03	0.06
		1300	0.04	0.03	0.03	0.07
060		1400	0.04	0.04	0.03	0.08
	DEY	1500	0.04	0.05	0.04	0.09
(5.0)		1600	0.04	0.06	0.05	0.10
		1700	0.05	0.07	0.05	0.11
		1800	0.05	0.07	0.06	0.11
		1900	0.06	0.08	0.06	0.11
		2000	0.07	0.08	0.07	0.12

1.The pressure drop through the economizer is greater for 100% outdoor air than for 100% return air. If the resistance of the return air duct is less than 0.25 IWG, the unit will deliver less CFM during full economizer operation.

Table 10: Electric Heat Minimum Supply Air

Size					Minimum Supply Air (CFM)
	Model	Voltage				Heater kW
(Tons)
			5.0	7.5		10.0	15.0	20.0	25.0
024	DEX	208/230-1-60	630	630		800	-	-	-
(2.0)
030	DEX	208/230-1-60	630	630		800	800	-	-
(2.5)
036		208/230-1-60	1070	1070		1070	1070	-	-
	DEX	208/230-3-60	1070	1070		1070	1070	-	-
(3.0)
		460-3-60	1070	1070		1070	1070	-	-
042		208/230-1-60	1225	1225		1225	1225	-	-
	DEX	208/230-3-60	1225	1225		1225	1225	-	-
(3.5)
		460-3-60	1225	1225		1225	1225	-	-
048		208/230-1-60	-	-		1200	1430	1430	1430
	DEX	208/230-3-60	-	-		1200	1430	1430	1430
(4.0)
		460-3-60	-	-		1200	1430	1430	1430
060		208/230-1-60	-	-		1615	1615	1955	1955
	DEY	208/230-3-60	-	-		1615	1615	1955	1955
(5.0)
		460-3-60	-	-		1615	1615	1955	1955

Table 11: Indoor Blower Specifications

Size	Model			Motor
(Tons)		HP	RPM	Eff.	SF	Frame
024	DEX	1/2	Variable	0.8	1.0	48
(2.0)
030	DEX	1/2	Variable	0.8	1.0	48
(2.5)
036	DEX	1/2	Variable	0.8	1.0	48
(3.0)
042	DEX	3/4	Variable	0.8	1.0	48
(3.5)
048	DEX	3/4	Variable	0.8	1.0	48
(4.0)
060	DEY	1	Variable	0.8	1.0	48
(5.0)

Table 12: Electric Heat Multipliers
	Voltage		kW Capacity Multipliers1
Nominal		Applied
240		208	0.75
		230	0.92
480		460	0.92

1.Electric heaters are rated at nominal voltage. Use this table to determine the electric heat capacity for heaters applied at lower voltages.

Unitary Products Group 15