York DH 240, DH 210 Blower Motor And Drive Data, STATIC RESISTANCES1, Power Exhaust Performance

262260-YTG-E-1008

TABLE 16: BLOWER MOTOR AND DRIVE DATA

MOTOR1

ADJUSTABLE MOTOR PULLEY

FIXED BLOWER PULLEY

BELT

MODEL

BLOWER

(NOTCHED)

DRIVE

RANGE

EFF.

DESIG-

OUTSIDE

PITCH

BORE

DESIG-

OUTSIDE

PITCH

BORE

DESIG-

PITCH

SIZE

(RPM)

HP

FRAME

(%)

NATION

DIA.

DIA.

(IN.)

NATION

DIA.

DIA.

(IN.)

NATION

LENGTH

QTY.

(IN.)

(IN.)

(IN.)

(IN.)

(IN.)

Standard

850/1065

4.3-5.32

BK90

8.75

8.4

1

BX70

82.8

1

15 TON

5

184 T

83

1VP56

5.35

1-1/8

High

965/1190

BK80

7.75

7.4

1

BX68

69.8

1

Static

17.5 &

Standard

870/1025

5.5-6.52

BK120

11.75

11.4

1-3/16

BX83

84.8

1

High

7.5

213 T

89

1VP68

6.75

1-3/8

20 TON

950/1120

BK110

10.75

10.4

1-3/16

BX81

82.8

1

Static

Standard

950/1120

10

215 T

89.5

1VP68

6.75

5.5-6.52

1-3/8

1B5V110

11.3

11.1

1-7/16

BX81

82.8

1

25 TON

High

1140/1365

15

254 T

91

1VP75X

7.5

6.2-7.4

1-5/8

1B5V94

9.7

9.5

1-7/16

5VX840

84.0

1

Static

1.All motors have a nominal speed of 1800 RPM, a 1.15 service factor and a solid base. They can operate to the limit of their service factor because they are located in the moving air, upstream of any heating device.

2.Do NOT close this pulley below 1 turn open.

TABLE 17: STATIC RESISTANCES1

								RESISTANCE, IWG
DESCRIPTION										CFM
			15 TON			17.5 TON						20 TON			25 TON
		4500	6000	7200	6000		8000		9000		6000	7000	9400	7500	10000	12500
WET COIL		0.1	0.1	0.1	0.1		0.1		0.1		0.1	0.1	0.1	0.1	0.1	0.1
	18kW	0.3	0.4	0.4	0.4		0.4		0.5		0.4	0.4	0.5	0.4	0.6	0.6
ELECTRIC HEAT
	36kW	0.3	0.4	0.5	0.4		0.5		0.5		0.4	0.5	0.5	0.5	0.5	0.6
OPTIONS
	54kW	0.4	0.5	0.5	0.5		0.5		0.6		0.5	0.5	0.6	0.5	0.6	0.7
(DH models only)
	72kW	0.4	0.5	0.5	0.5		0.5		0.6		0.5	0.5	0.6	0.5	0.6	0.7
ECONOMIZER OPTION		0.1	0.1	0.1	0.1		0.1		0.2		0.1	0.1	0.2	0.1	0.2	0.3
HORIZONTAL DUCT CONNECTIONS2		0.1	0.2	0.3	0.2		0.3		0.5		0.2	0.3	0.5	0.3	0.5	0.6

1.Deduct theses resistance values from the available unit ESP values listed in the respective blower performance table except for Horizontal Duct Connections.

2.Since the resistance to air flow will be less for horizontal duct connections than for bottom duct connections, add these pressures to the ESP values on the respective unit’s blower performance table.

TABLE 18: POWER EXHAUST PERFORMANCE

MOTOR				STATIC RESISTANCE OF RETRUN DUCTWORK, IWG
SPEED1		0.2		0.3			0.4			0.5			0.6
	CFM		kW	CFM	kW	CFM		kW	CFM		kW	CFM		kW
HIGH2	5250		0.83	4500	0.85	4200		0.88	3750		0.93	3000		0.99
MEDIUM	4900		0.77	3900	0.79	3500		0.82	2900		0.85	-		-
LOW	4400		0.72	3700	0.74	3000		0.78	-		-	-		-

1.Power exhaust motor is a 3/4 HP, PSC type with sleeve bearings, a 48 frame and inherent protection.

2.The factory setting.

Johnson Controls Unitary Products 27