Carrier 42BHC,BVC Component Static Resistance in. wg, Cv Factor by Coil and Unit Size, Row

Page 32

Performance data (cont)

42BHC,BVC COMPONENT STATIC RESISTANCE (in. wg)

 

 

 

WET COIL

 

DRY COIL

 

ONE-INCH

TWO-INCH

TWO-INCH

TWO-INCH

UNIT

NOMINAL

CABINET

 

 

 

 

 

 

 

 

PLEATED

4

6

8

1

2

4

6

8

SIZE 42BHC,BVC

CFM

PLEATED

THROWAWAY

PLEATED

MERV 11

 

Row

Row

Row

Row

Row

Row

Row

Row

FILTER

FILTER

FILTER

 

 

 

FILTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

400

0.02

0.08

0.12

0.16

0.01

0.02

0.04

0.06

0.08

0.03

0.02

0.03

0.06

06

500

0.03

0.13

0.19

0.25

0.01

0.03

0.06

0.09

0.12

0.05

0.03

0.04

0.09

600

0.04

0.18

0.27

0.36

0.02

0.04

0.08

0.13

0.17

0.08

0.04

0.06

0.12

 

700

0.06

0.25

0.37

0.50

0.03

0.06

0.12

0.17

0.23

0.10

0.06

0.08

0.17

 

800

0.08

0.32

0.49

0.65

0.04

0.08

0.15

0.23

0.30

0.14

0.08

0.11

0.22

 

600

0.04

0.18

0.27

0.36

0.02

0.04

0.08

0.13

0.17

0.08

0.04

0.06

0.12

08

700

0.06

0.25

0.37

0.50

0.03

0.06

0.12

0.17

0.23

0.10

0.06

0.08

0.17

800

0.08

0.32

0.49

0.65

0.04

0.08

0.15

0.23

0.30

0.14

0.08

0.11

0.22

 

900

0.10

0.41

0.61

0.82

0.05

0.10

0.19

0.29

0.38

0.17

0.10

0.14

0.28

 

1000

0.12

0.51

0.76

1.01

0.06

0.12

0.24

0.35

0.47

0.21

0.12

0.17

0.34

 

800

0.04

0.15

0.23

0.31

0.02

0.04

0.07

0.11

0.14

0.07

0.04

0.06

0.12

10

900

0.05

0.19

0.29

0.39

0.02

0.05

0.09

0.14

0.18

0.09

0.05

0.07

0.15

1000

0.06

0.24

0.36

0.48

0.03

0.06

0.11

0.17

0.22

0.11

0.06

0.09

0.18

 

1100

0.08

0.29

0.44

0.58

0.03

0.07

0.14

0.20

0.27

0.14

0.08

0.11

0.22

 

1200

0.09

0.35

0.52

0.69

0.04

0.08

0.16

0.24

0.32

0.16

0.09

0.13

0.26

 

1000

0.06

0.24

0.36

0.48

0.03

0.06

0.11

0.17

0.22

0.11

0.06

0.09

0.18

12

1100

0.08

0.29

0.44

0.58

0.03

0.07

0.14

0.20

0.27

0.14

0.08

0.11

0.22

1200

0.09

0.35

0.52

0.69

0.04

0.08

0.16

0.24

0.32

0.16

0.09

0.13

0.26

 

1300

0.11

0.41

0.61

0.81

0.05

0.09

0.19

0.28

0.38

0.19

0.11

0.15

0.31

 

1400

0.13

0.47

0.71

0.94

0.05

0.11

0.22

0.33

0.44

0.22

0.13

0.17

0.36

 

1400

0.07

0.26

0.39

0.52

0.03

0.06

0.12

0.18

0.24

0.13

0.07

0.10

0.21

16

1500

0.09

0.30

0.45

0.60

0.03

0.07

0.14

0.21

0.28

0.15

0.09

0.12

0.24

1600

0.10

0.34

0.51

0.68

0.04

0.08

0.16

0.24

0.32

0.17

0.10

0.13

0.27

 

1700

0.11

0.38

0.58

0.77

0.04

0.09

0.18

0.27

0.36

0.19

0.11

0.15

0.31

 

1800

0.12

0.43

0.65

0.86

0.05

0.10

0.20

0.30

0.40

0.21

0.12

0.17

0.35

 

1800

0.12

0.30

0.45

0.60

0.03

0.07

0.14

0.21

0.28

0.13

0.08

0.10

0.21

 

1900

0.13

0.34

0.50

0.67

0.04

0.08

0.16

0.23

0.31

0.14

0.08

0.12

0.24

20

2000

0.14

0.37

0.56

0.74

0.04

0.09

0.17

0.26

0.35

0.16

0.09

0.13

0.26

2100

0.16

0.41

0.61

0.82

0.05

0.10

0.19

0.29

0.38

0.18

0.10

0.14

0.29

 

2200

0.17

0.45

0.67

0.90

0.05

0.10

0.21

0.31

0.42

0.19

0.11

0.16

0.32

 

2300

0.19

0.49

0.74

0.98

0.06

0.11

0.23

0.34

0.46

0.21

0.12

0.17

0.35

 

2400

0.21

0.54

0.80

1.07

0.06

0.12

0.25

0.37

0.50

0.23

0.13

0.19

0.38

 

2400

0.11

0.22

0.33

0.43

0.03

0.05

0.10

0.15

0.20

0.13

0.07

0.10

0.21

 

2600

0.13

0.25

0.38

0.51

0.03

0.06

0.12

0.18

0.24

0.15

0.09

0.12

0.24

30

2800

0.15

0.29

0.44

0.59

0.03

0.07

0.14

0.21

0.27

0.17

0.10

0.14

0.28

3000

0.18

0.34

0.51

0.68

0.04

0.08

0.16

0.24

0.31

0.20

0.12

0.16

0.32

 

 

3200

0.20

0.39

0.58

0.77

0.04

0.09

0.18

0.27

0.36

0.23

0.13

0.18

0.37

 

3400

0.23

0.43

0.65

0.87

0.05

0.10

0.20

0.30

0.40

0.25

0.15

0.20

0.42

 

3400

0.13

0.24

0.36

0.48

0.03

0.06

0.11

0.17

0.22

0.15

0.09

0.12

0.24

 

3600

0.15

0.27

0.40

0.54

0.03

0.06

0.12

0.19

0.25

0.16

0.10

0.13

0.27

40

3800

0.16

0.30

0.45

0.60

0.03

0.07

0.14

0.21

0.28

0.18

0.11

0.15

0.30

4000

0.18

0.33

0.50

0.66

0.04

0.08

0.15

0.23

0.31

0.20

0.12

0.16

0.33

 

 

4200

0.20

0.36

0.55

0.73

0.04

0.08

0.17

0.25

0.34

0.22

0.13

0.18

0.37

 

4400

0.22

0.40

0.60

0.80

0.05

0.09

0.19

0.28

0.37

0.25

0.14

0.20

0.40

Hydronic coil pressure drop — All of the factory’s hy- dronic coils have a coefficient of velocity (Cv) resistance factor assigned to assist in a more accurate determination of water pressure drop (see Cv Factor by Coil and Unit Size table below).

Calculating pressure drop:

The Cv factor is equal to the flow rate of water in gpm through a piping component when the pressure drop through the component is 1.0 pounds per square inch (psi), or 2.31 ft wg.

P (ft wg) = P (psi) x 2.31

Use the Cv factor from the Cv Factor by Coil and Unit Size table to determine the water coil pressure drop.

Coil pressure drop (ft wg):

P = (GPM2/Cv2 ) x 2.31

or

P = [GPM/(0.658 x Cv)]2

or

Refer to the Water Pressure Drop for Cv Factor and Water Flow Rate table. See example on page 22.

Cv FACTOR BY COIL AND UNIT SIZE

COIL TYPE

 

 

42BHC,BVC UNIT SIZE

 

06

08

10

12

16

20

30

40

 

1 Row Heat Only

1.4

1.4

1.3

1.3

1.2

1.2

0.8

0.7

2 Row Heat Only

2.4

2.4

2.2

2.2

2.0

1.9

1.6

1.4

4 Row Heat/Cool

4.7

4.7

4.4

4.4

7.2

6.8

13.2

12.4

6 Row Heat/Cool

4.0

4.0

3.7

3.7

6.1

5.8

11.4

10.5

8 Row Heat/Cool

3.6

3.6

3.3

3.3

5.3

5.1

9.8

9.0

32

Image 32
Contents Features/Benefits Variety of coil options reduces first cost42BHC Unit 42BVC UnitTable of contents Size Nominal Cfm Coil Rows Model number nomenclaturePhysical data Options and accessories Factory-installed optionsField-installed accessories 42BHC, BVC Options and AccessoriesThermostat Functions AuxBase unit dimensions 42BHC FAN Coil Base Unit no ControlsUnit 42BHC42BHC FAN Coil with Motor Control Option 42BHC FAN Coil with Electric Heat Option Dimensions Supply Duct Return Duct 42BVC FAN Coil Base Unit no Controls42BVC Fan Size42BVC FAN Coil with Motor Control Option Dimensions 42BVC FAN Coil with Electric Heat Option42BHC Unit Corner Weights lb 42BHC Weight42BVC Unit Corner Weights lb Total Weight Unit Correction Factor lbAccessory dimensions Mixing BOX42BHC,BVC Unit SizeMixing BOX Rails OFF Valve PackagesPiping Size Close Nominal Piping Connection Location DiagramHead Stub OUT Sizes Row Coil SO Heat Options 42BHC,BVC Coil Rows Unit Hand Piping Components Application dataBasic definitions Piping Components WAY Motorized Valve Electric Selection procedure FormulasPerformance data 42BHC,BVC Airflow Correction FactorsDirect Expansion DX Correction Factors Altitude Cooling Correction Factors42BHC, BVC Nominal Cooling Capacities 42BHC,BVC Nominal Heating Capacities42BHC,BVC 4-ROW Cooling Capacity by Gpm 42BHC,BVC 6-ROW Cooling Capacity by Gpm42BHC,BVC 8-ROW Cooling Capacity by Gpm 42BHC,BVC 4-ROW Cooling Capacity by ∆T42BHC, BVC 6-ROW Cooling Capacity by ∆T 42BHC, BVC 8-ROW Cooling Capacity by ∆TCFM Suction 42BHC,BVC Temp F Rpm Bhp Unit Horsepower Data TableSize Blower CFM 42BHC,BVC Unit Horsepower Data Table 42BHC,BVC Component Static Resistance in. wg Cv Factor by Coil and Unit SizeRow FilterSound Power Data 42BHC,BVC Unit Size Nominal CFMCenter Frequency Hz 125 250 1000 2000 4000Typical wiring schematics Page Typical wiring schematics Service Switches Electrical data42BHC,BVC Electric Heater Data Availability Motor Performance Data AmpsStandard control features ControlsMotor control options Motor and electric heat control optionsGuide specifications System Fan Coil UnitCarrier Corporation Syracuse, New York 05A