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Bryant 502A, Руководство пользователя

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7

PERFORMANCE DATA (cont)

GROSS COOLING CAPACITIES (cont)

LEGEND

NOTES:

1. Performance based on nominal condenser airflow listed in physical data table

on page 3.

2. SHC is based on 80 F db temperature of air entering the coil.

Below 80 F db, subtract (corr factor x cfm) from SHC.
Above 80 F db, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x db – 80)

The following formulas may be used:

Where:

hewb = Enthalpy of air entering evaporator coil

EVAPORATOR FAN PERFORMANCE

LEGEND

*Standard direct drive indoor (evaporator) fan motor (IFM). For optional

belt drive IFM performance, see table on page 8.

NOTES:

1. Above fan performance is based on wet coil and deducted casing

losses, and clean factory-installed permanent cleanable filter.

2. Evaporator fans are direct drive (except 048, 060 special order

evaporator-fan motor option). Refer to Belt Drive Evaporator Fan
Performance table on page 8.

3. Interpolation is permissible, do not extrapolate.
4. For units installed with accessory electric heaters, see Electric

Heater Static Pressure Drop table for additional performance losses.

502A048

Temp

Air Ent

Condenser

(F)

Evaporator Air Quantity Cfm/BF

1200/0.06

1600/0.08

2000/0.10

Evaporator Air Ewb Temp (F)

72

67

62

57

72

67

62

57

72

67

62

57

85

TC

56.0 52.1 47.9 44.4 57.7 54.5 50.6 49.6 59.4 56.0 52.7 52.3

SHC

27.8 34.8 41.6 44.4 30.2 39.6 48.0 49.6 32.8 43.9 52.5 52.3

kW

3.77 3.68 3.59 3.53 3.81 3.74 3.66 3.64 3.85 3.77 3.70 3.69

95

TC

54.0 50.1 45.7 42.4 55.7 52.3 48.6 47.3 57.4 53.8 51.0 50.9

SHC

27.1 34.0 40.4 42.4 29.6 38.8 47.0 47.3 32.4 43.2 50.9 50.9

kW

4.21 4.11 4.01 3.95 4.25 4.18 4.09 4.07 4.31 4.21 4.15 4.15

105

TC

51.8 47.9 42.3 40.2 53.6 50.0 45.1 45.0 54.6 51.4 48.9 48.6

SHC

26.3 33.1 38.8 40.2 29.0 38.0 44.8 45.0 31.3 42.4 48.9 48.6

kW

4.69 4.58 4.45 4.40 4.75 4.65 4.54 4.53 4.77 4.69 4.63 4.63

115

TC

49.5 45.5 38.6 37.7 51.2 47.6 41.9 42.1 52.2 49.1 45.8 45.8

SHC

25.5 32.2 37.0 37.7 28.3 27.3 41.8 42.1 30.7 42.0 45.8 45.8

kW

5.21 5.09 4.92 4.89 5.27 5.17 5.03 5.03 5.30 5.23 5.14 5.14

BF

—

Bypass Factor

Ewb

—

Entering Wet-Bulb

kW

—

Compressor Motor Power Input (kilowatts)

SHC

—

Gross Sensible Heat Capacity (1000 Btuh)

TC

—

Gross Total Cooling Capacity (1000 Btuh)

BYPASS
FACTOR

(BF)

ENTERING AIR DRY-BULB TEMPERATURE (F)

79

78

77

76

75

Under 75

81

82

83

84

85

Over 85

Correction Factor

.025

1.07

2.12

3.19

4.25

5.32

Use formula

shown below

.05

1.04

2.07

3.11

4.14

5.18

.10

.98

1.96

2.94

3.92

4.90

.20

.87

1.74

2.62

3.49

4.36

.30

.76

1.53

2.29

3.05

3.82

.35

.71

1.42

2.13

2.83

3.54

502A060

Temp

Air Ent

Condenser

(F)

Evaporator Air Quantity — Cfm/BF

1500/0.06

2000/0.09

2250/0.10 

Evaporator Air Ewb Temp (F)

72

67

62

72

67

62

72

67

62

85

TC

64.8

58.5

52.9

68.0

61.5

56.3

68.9

62.5

58.0

SHC

33.2

41.1

48.5

37.2

47.3

55.7

38.9

50.0

57.7

kW

4.49

4.29

4.13

4.59

4.83

4.22

4.62

4.41

4.27

95

TC

61.9

55.7

50.2

65.1

58.7

54.0

66.1

59.7

55.8

SHC

32.3

40.1

47.3

36.4

46.5

54.0

38.2

49.3

55.8

kW

4.94

4.72

4.57

5.04

4.81

4.67

5.07

4.84

4.72

105

TC

58.5

52.4

47.2

61.5

55.2

51.4

62.6

56.3

53.3

SHC

31.1

38.8

45.8

35.2

45.2

51.4

37.1

48.1

58.2

kW

5.41

5.20

5.04

5.51

5.28

5.16

5.55

5.32

5.22

115

TC

54.9

49.0

44.1

57.8

51.7

48.7

58.7

52.6

50.4

SHC

29.8

37.5

44.0

34.0

43.9

48.7

35.9

46.7

50.4

kW

5.93

5.72

5.56

6.04

5.80

5.70

6.07

5.83

5.75

t

ldb

 

= t

edb

 –

sensible capacity (Btuh)

1.10 x cfm

tlwb

 

=

Wet-bulb temperature corresponding to enthalpy of air leaving
evaporator col (hlwb).

h

lwb

 

= h

ewb

 –

total capacity (Btuh)

4.5 x cfm

CFM

UNIT SIZE — 502A

024

036

048*

060*

ESP

Fan kW

ESP

Fan kW

ESP

Fan kW

ESP

Fan kW

600

.60

.20

—

—

—

—

—

—

700

.54

.22

—

—

—

—

—

—

800

.43

.24

—

—

—

—

—

—

900

.29

.26

.69

.44

—

—

—

—

1000

.11

.29

.57

.46

—

—

—

—

1100

—

—

.42

.49

1.10

.45

1.11

.52

1200

—

—

.23

.52

1.01

.49

1.045

.55

1300

—

—

—

—

.90

.51

.97

.57

1400

—

—

—

—

.79

.55

.88

.59

1500

—

—

—

—

.67

.58

.78

.62

1600

—

—

—

—

.54

.61

.67

.64

1700

—

—

—

—

.39

.64

.53

.67

1800

—

—

—

—

.22

.67

.52

.70

1900

—

—

—

—

.03

.70

.40

.74

2000

—

—

—

—

—

—

.28

.78

ESP —

External Static Pressure (in. wg)

kW

—

Total Fan Motor Power Input (kilowatts)

Содержание 502A

Страница 1: ... quiet operation Bryant engineers met the challenge by specifying heavy insulation vibration resistant construction and operating components that function at low noise levels all of which keep system sound at a minimum level EASY MAINTENANCE When it comes to maintenance the 502A unit rates high in accessibility Indoor location is ideal for the maintenance technician and five access panels easily r...

Страница 2: ...000 800 10 80 11 00 78 036 208 230 1 60 4 3 36 000 1200 10 00 10 05 82 208 230 3 60 9 0 460 3 60 9 0 048 208 230 1 60 5 5 49 500 1600 10 20 10 40 82 208 230 3 60 9 1 460 3 60 9 1 575 3 60 9 1 060 208 230 1 60 6 9 58 500 2000 9 75 10 05 82 208 230 3 60 8 55 460 3 60 8 55 575 3 60 8 55 dB Decibels EER Energy Efficiency Ratio SEER Seasonal Energy Efficiency Ratio TDR Time Delay Relay 2 EER NET CAPACI...

Страница 3: ...725 EVAPORATOR AIR FAN Standard Centrifugal Direct Drive Nominal Cfm 800 1200 1600 2000 Max Rpm 1100 1150 1050 Blower Size in 10 x 5 10 x 6 10 x 6 Motor Hp Rpm 1 6 850 1 2 1075 3 4 1050 EVAPORATOR AIR FAN Optional Centrifugal Belt Drive Nominal Cfm Not Available 1600 2000 Max Rpm 1300 Blower Size in 10 x 8 Motor Hp 11 2 Motor Rpm 1725 Pulley Pitch Diameter in Blower 4 2 Motor Variable 2 4 3 4 COND...

Страница 4: ...rom the bottom of heater Condensate Pump The condensate pump is used when the distance and slope to the nearest drain is far enough to prevent the natural drainage of unit The pump is mounted remotely from the unit and includes a signal light field installed which illuminates when the reservoir rises beyond a certain level The unit automatically shuts down when this reservoir level is achieved Hea...

Страница 5: ...NIT DIMENSIONS DIMENSIONS ft in UNIT 502A A B C D E 024 2 5 2 15 8 1 53 4 1 2 1 1 036 2 43 4 2 2 1 53 4 1 2 1 1 048 2 5 2 3 1 115 8 1 87 8 1 77 8 060 2 43 4 2 23 4 1 115 8 1 87 8 1 77 8 Unit Component Locations ...

Страница 6: ...ondenser fan assembly PERFORMANCE DATA GROSS COOLING CAPACITIES See Legend on page 7 502A024 Temp Air Ent Condenser F Evaporator Air Quantity Cfm BF 600 0 02 800 0 03 1000 0 04 Evaporator Air Ewb Temp F 72 67 62 72 67 62 72 67 62 85 TC 27 1 25 3 23 0 27 7 26 4 24 6 27 8 26 9 25 8 SHC 13 5 17 0 20 2 14 7 19 4 23 7 15 6 21 5 25 8 kW 1 64 1 62 1 61 1 65 1 63 1 62 1 65 1 64 1 63 95 TC 26 6 24 5 20 8 2...

Страница 7: ... 63 4 63 115 TC 49 5 45 5 38 6 37 7 51 2 47 6 41 9 42 1 52 2 49 1 45 8 45 8 SHC 25 5 32 2 37 0 37 7 28 3 27 3 41 8 42 1 30 7 42 0 45 8 45 8 kW 5 21 5 09 4 92 4 89 5 27 5 17 5 03 5 03 5 30 5 23 5 14 5 14 BF Bypass Factor Ewb Entering Wet Bulb kW Compressor Motor Power Input kilowatts SHC Gross Sensible Heat Capacity 1000 Btuh TC Gross Total Cooling Capacity 1000 Btuh BYPASS FACTOR BF ENTERING AIR D...

Страница 8: ...llows 036 4 turns open 048 2 turns open 060 5 turns open CFM UNIT SIZE 502A 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 502A COND CFM EXTERNAL STATIC PRESSURE in wg 0 0 0 1 0 2 0 3 0 4 0 5 0 6 ...

Страница 9: ...87 254 13 5 99 0 1 5 5 60 1 0 3 93 26 4 35 460 3 414 508 7 4 49 5 1 5 2 80 1 0 1 97 14 0 20 060 230 1 207 254 28 8 169 0 75 4 00 1 5 9 50 49 5 70 208 230 3 187 254 17 3 123 0 75 4 00 1 5 4 82 30 4 45 460 3 414 508 9 0 62 0 75 2 15 1 5 2 41 15 8 25 575 3 518 632 7 1 50 0 75 1 40 1 5 1 90 12 2 20 060 208 230 3 187 254 17 3 123 0 1 5 5 60 1 5 4 82 32 0 40 460 3 414 508 9 0 62 0 1 5 2 80 1 5 2 41 16 5...

Страница 10: ...n underlined number signifies a normally closed contact 4 Must use thermostat HH07AT170 172 or 174 with subbase HN63AZ176 177 or 178 5 Separate field power supply required for electric heater accessory 6 CLO locks out the compressor to prevent short cycling on compressor overloads and safety devices Before replacing CLO check devices LEGEND AHA Adjustable Heat Anticipator BKR W AT Brakes with Amp ...

Страница 11: ...ed Wire Denotes connection point between subbase and thermostat Terminal Marked Terminal Unmarked Terminal Block Field Splice Splice Marked Factory Splice Factory Wiring Accessory or Optional Wiring Field Control Wiring Field Power Wiring To indicate common potential only not to represent wiring 502A024 230 1 60 Units NOTES 1 Neutral for 240 416 v supply Canada only 2 If any original wires furnish...

Страница 12: ...ed Terminal Block Field Splice Splice Marked Factory Splice Factory Wiring Accessory or Optional Wiring Field Control Wiring Field Power Wiring To indicate common potential only not to represent wiring 502A048 060 230 1 60 Units NOTES 2 If any original wires furnished must be replaced it should be replaced with 90 C or its equivalent 3 Numbers indicate the line location of used contacts A bracket ...

Страница 13: ...ctory Splice Factory Wiring Accessory or Optional Wiring Field Control Wiring Field Power Wiring To indicate common potential only not to represent wiring 502A048 060 575 3 60 Units NOTES 1 Compressor and fan motors are thermally protected three phase motors protected against primary single phase conditions 2 If any original wires furnished must be replaced it should be replaced with 90 C or its e...

Страница 14: ...n to splice the outdoor fan motor factory wiring no 16 AWG American Wire Gage 4 64 in thick insulation Field wiring should be a minimum of no 16 AWG 4 64 in thick insulation Check all applicable electri cal codes to ensure proper compliance UNIT 502A 024 036 048 060 Without Head Pressure Control Minimum 35 35 40 40 Maximum 126 126 126 126 With Head Pressure Control Minimum 0 0 0 0 Maximum 126 126 ...

Страница 15: ...nging bracket requiring only 4 threaded rods 8 if unit is split run to the top flange of the unit for hanging eliminating need for external hanger brackets 7 Contains junction box for power connection and opening for routing of control wiring C Fans 1 Evaporator a Blower shall be of the forward curved centrifugal direct drive type or belt drive 4 and 5 tons only b Motor shall have permanently lubr...

Страница 16: ...ield installed light shall illuminate when reservoir rises above a preset level Unit shall shut down upon reservoir light illumination 5 Head Pressure Control Package Allows unit to mechanically cool down to 0 F ambi ent temperature Package shall include damper operating device and all necessary hardware 6 Vibration Isolation Package Shall provide 4 spring hangers for ceiling mounted unit to dampe...

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