18 belt drive blower motor and drive data, 19 static resistances, 20 electric heater cfm limitations – York BP 036 User Manual

Page 24: Table 18: belt drive blower motor and drive data, Table 19: static resistances, Table 20: electric heater cfm limitations

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255027-YTG-B-0507

24

Unitary Products Group

TABLE 18: BELT DRIVE BLOWER MOTOR AND DRIVE DATA

INDOOR BLOWER SPECIFICATION

MODEL

SIZE

BLOWER

RANGE

(RPM)

MOTOR

1

ADJUSTABLE MOTOR PULLEY

FIXED BLOWER PULLEY

BELT (NOTCHED)

HP FRAME DESIGNATION

OUTSIDE

DIA.
(IN.)

PITCH

DIA.
(IN.)

BORE

(IN.)

DESIGNATION

OUTSIDE

DIA.
(IN.)

PITCH

DIA.
(IN.)

BORE

(IN.)

DESIGNATION

PITCH

LENGTH

(IN.)

QTY.

036

600/920

1 1/2

56

1VL40

2.7-3.7

2.4-3.4

5/8

AK74

7.2

7.0

1

A39

40.3

1

048

790/1120

1 1/2

56

1VL40

2.7-3.7

2.4-3.4

5/8

AK61

5.9

5.7

1

A36

37.3

1

060

850/1220

1 1/2

56

1VL40

2.7-3.7

2.4-3.4

5/8

AK56

5.4

5.2

1

A36

37.3

1

072

900/1250

1 1/2

56

1VL44

3.1-4.1

2.8-3.8

7/8

AK56

5.4

5.2

1

A36

37.3

1

1. All motors have solid bases and are inherently protected. these motors can be selected to operate into their service factor because they are located

in the moving air, upstream of any heating device.

TABLE 19: STATIC RESISTANCES

1000

1200

1400

1600

1800

2000

2200

2400

2600

2800

3000

0.07

0.08

0.09

0.11

0.13

0.15

0.17

0.20

0.23

0.26

0.30

7-15KW

0.04

0.05

0.06

0.07

0.08

0.10

0.12

0.14

0.16

0.19

0.22

20-30KW

0.06

0.07

0.08

0.09

0.11

0.13

0.15

0.17

0.20

0.23

0.26

0.06

0.07

0.08

0.09

0.10

0.11

0.12

0.14

0.16

0.19

0.22

0.08

0.10

0.12

0.14

0.16

0.18

0.20

0.23

0.26

0.29

0.32

COOLING ONLY

2

RESISTANCE, IWG

CFM

DESCRIPTION

ECONOMIZER

1 3

BOTTOM DUCT CONNECTIONS

1

ELECTRIC

HEATERS

1

1. Deduct these resistance values from the available external static pressure shown in SUPPLY AIR BLOWER PERFORMANCE Tables.

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

2. Add these resistance values to the available static resistance values on SUPPLY AIR BLOWER PERFORMANCE Tables.

TABLE 20: ELECTRIC HEATER CFM LIMITATIONS

UNIT MODEL SIZE

NOMINAL TONS

VOLTAGE

MINIMUM SUPPLY AIR CFM

HEATER SIZE NOMINAL KW

5

7

10

15

20

30

036

(3)

208/230-1-60

1100

1100

1200

1200

1300

-

208/230-3-60

1100

1100

1200

1200

1300

-

460-3-60

-

1100

1200

1200

1300

-

575-3-60

-

-

1200

1200

1300

-

048

(4)

208/230-1-60

1300

1300

1300

1300

1300

-

208/230-3-60

1300

1300

1300

1300

1300

-

460-3-60

-

1300

1300

1300

1300

-

575-3-60

-

-

1300

1300

1400

-

060

(5)

208/230-1-60

1600

1600

1600

1600

1600

1600

208/230-3-60

1600

1600

1600

1600

1600

1600

460-3-60

1600

1600

1600

1600

1600

1600

575-3-60

-

1600

1600

1600

1600

1800

072

(6)

208/230-1-60

1800

1800

1800

1800

1800

1800

208/230-3-60

1800

1800

1800

1800

1800

1800

460-3-60

-

1800

1800

1800

1800

1800

575-3-60

-

-

1800

1800

1800

1800

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