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Performance data (cont) – Carrier 50AH User Manual

Page 8

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8

BELT DRIVE EVAPORATOR FAN PERFORMANCE

(Special Order Only, Pricing and

ordering on related price pages.)

LEGEND

NOTE: Pulley setting must be adjusted to limit cfm to 450 cfm/ton
maximum. Unit operation beyond that limit may result in blow-off and
condensate problems.

CONDENSER FAN PERFORMANCE

LEGEND

kW — Total Fan Motor Power Input (kilowatts)

NOTES:
1. Above fan performance is based upon coil and deducted casing

losses only.

2. External static pressure (ESP) is measured in inches water gage

(in. wg).

3. Interpolation is permissible. Do not extrapolate.
4. Condenser fan on unit size 024 only, is direct drive.

5. Minimum one turn open of motor pulley is required on unit sizes 036

and 060.

6. Number of turns open applies to field setting of motor pulley.
7. Factory setting as follows: 036, 4 turns open; 048, 2 turns open; 060,

5 turns open.

8. Care should be taken when hoods and/or louvers are installed to

avoid condenser air recirculation.

CFM

UNIT SIZE — 50AH

048

060

ESP

Fan kW

ESP

Fan kW

1800

1850

1900

1950

.81

1.03

2000

.72

1.05

2050

.63

1.07

2100

.55

1.08

1.02

1.17

2150

.47

1.11

.93

1.21

2200

.42

1.14

.84

1.24

2250

.34

1.17

.75

1.27

ESP — External Static Pressure (in. wg)
kW

Total Fan Power Motor Input (kilowatts)

UNIT

50AH

COND

CFM

EXTERNAL STATIC PRESSURE (in. wg)

0.0

0.1

0.2

0.3

0.4

0.5

0.6

Turns

kW

Turns

kW

Turns

kW

Turns

kW

Turns

kW

Turns

kW

Turns

kW

024

1525

Note 4

.66

1475

Note 4

.64

1400

Note 4

.63

1350

Note 4

.62

1300

Note 4

.62

036

1650

2

.84

1600

2

.82

1550

2

.80

1500

3

.72

2

.78

1

.84

1450

4

.63

3

.70

2

.76

1

.83

1400

4

.61

3

.68

1

.81

1350

5

.51

3

.67

2

.73

1300

5

.50

4

.57

3

.65

2

.71

048

2700

2

.90

2600

2

.87

2550

3

.81

2450

3

.77

2

.83

1

.89

2350

2

.80

1

.86

2300

4

.68

3

.74

0

.90

2200

4

.66

2

.77

1

.82

0

.86

060

3100

3

1.34

3000

3

1.32

2900

2

1.39

2850

4

1.11

3

1.24

2750

4

1.07

2

1.32

2700

3

1.17

2650

1

1.37

2600

5

.95

4

1.01

2

1.26

2550

3

1.12

2500

5

.92

2450

4

.97

2

1.21

2400

5

.90

3

1.08

Performance data (cont)