Thermostatic Expansion Valves TCAE TCBE TCCE

TCAE with interchangeable orifi ce assembly and adjustable superheat TCBE with fi xed orifi ce assembly and TCCE with fi xed superheat, otherwise it is All types are straightway versions..

Thermostatic Expansion Valves,

TCAE, TCBE, TCCE

Introduction .3

Features, TC 3

Standard range: TCAE 3

TCBE 4

Variant range: TCBE/TCCE .4

Technical data 4

MOP valves .4

Identifi cation 5

Ordering: TCAE, straightway .6

TCAE orifi ce assembly .6

TCBE, straightway .6

Design/ function .7

Capacity: R22 .8

R134a 9

R404A 10

R407C 11

R507 12

R410A 13

Dimensions and weight 14

Metric conversions

1 psi = 0.07 bar

5 /9 (t1°F – 32) = t2°C

1 ton = 3.5 kW

1 in = 25.4 mm

1 ft = 0.3 m

1 lb = 0.454 kg

1 oz = 28.35

US gal/min = 0.86 m 3 /h

Introduction, type TC The TC thermostatic expansion valve has been

developed and designed for soldering into hermetic refrigeration systems It is manufactured

in stainless steel and is therefore very suitable for installation in refrigeration systems for the food industry

TC can be used in many diff erent forms of refrigeration system, in particular:

– Mobile refrigeration equipment – Air conditioning units

– Heat pump systems – Refrigeration appliances – Liquid coolers

– Ice cube machines – Traditional refrigeration systems All variants are available in both singlepacks and industrial packs as required by the customer

TCAE with interchangeable orifi ce assembly

and adjustable superheat

TCBE with fi xed orifi ce assembly and

TCCE with fi xed superheat, otherwise it is

All types are straightway versions

TCCE is manufactured to order, and consequently this technical leafl et contains no description of standard range and code numbers

TC is also available in a range of variants that give countless valve combination possibilities Contact Danfoss for further information

Bimetal connections

- straightforward and fast soldering (no

wet cloth or cooling pliers required)

Refrigerants

R22, R134a, R404A, R507, R407C, R410A and future refrigerants

Capacities from 5.0 to 7.5 TR (17.5 to 26.5 kW) for R22 Stable regulation

Bifl ow function (orifi ce 1 and 2) Compact design

- small dimensions and low weight

Stainless steel, hermetically tight solder version

- high connection strength

- high corrosion resistance

- capillary tube joints of high strength and vibration resistance

Laser-welded, stainless steel thermostatic diaphragm element

- long diaphragm life

- high pressure resistance

Stainless steel double contact bulb

- straightforward and fast installation

- good heat transfer from bulb to pipe

Adjustable superheat type (TCAE/TCBE)

- accurate setting

- adjustable in operation

Fixed superheat type (TCCE) Filter with high dirt retention capacity Available with self-cleaning bleed Available with MOP (Max Operating Pres su re)

Features, TC

Versions available in the standard range

Ranges for R22, R134a, R404A, R507, R407C and R410A:

Ranges for R404A og R507

Standard range,

Valves without MOP: 9°F Valves with MOP: 7°F

Static superheat (SS) for R507

Valves without MOP: 11°F Valves with MOP: 9.5°F

Capillary tube length 59.0 in.

Connections:

Inlet 3/8 in

1/2 in

Outlet 5/ in

MOP points

−40 → +50°F −40 → +25°F Range NM −75 → −15°CRange B MOP point for evaporating temperature t 0 and evaporating pressure p0 1 )

1 ) pe in bar gauge

Versions available in the standard range:

Ranges

Static superheat (SS) for R22, R134a, R404A, R407C, R410A

Valves without MOP: 9°F Valves with MOP: 7°F

Standard range,

TCBE

Static superheat (SS) for R507

Valves without MOP: 11°F Valves with MOP: 9.5°F

Capillary tube length: 36.0 in Connections:

Variant range TCBE/TCCE In addition to the standard range, TCBE and TCCE

valves are also available in these variants and variant combinations:

Ranges

Valves to special temperature ranges can be supplied

Static superheat (SS)

The static superheat setting is to be determined before ordering Contact Danfoss for the appropriate setting

Capillary tube length: 59.0 in Bleed: 15%

Connections:

Technical data Max bulb temperature 212°F

Max valve body temperature 250°F

Max working pressure (excl R410A) PS/MWP = 500 psig

Max working pressure,

Max test pressure (excl R410A) p' = 540 psig

Max test pressure, R410A p' = 680 psig

Bifl ow operation

With fl ow in the opposite direction, the rated capacity is reduced by up to 15%

TC with orifi ce no 3, cannot be used for bifl ow ope ra ti on

MOP-Valves To avoid charge migration when MOP valves are

used, the bulb temperature must be lower than the thermostatic element temperature

Identifi cation

Fig 2 Valve body Fig 1 Power element

Main valve data is given on the element (fi g 1) on the valve body (fi g 2), or on the orifi ce assembly (fi g 3)

Valves with bleed are marked on the element or orifi ce assembly: BP 15 (=15% bleed of nominal

ca pac i ty)

For valves with fi xed superheat setting (type TCCE) the superheat is printed on the element (e.g SS 5°C/9°F )

Main valve data example, fi g 1

MOP 100 / +15°C = MOP-point in psig and in

°C

temperature range in °C

temperature range in °F

PB 34 bar/

in bar and psig

Main valve data example, fi g 2

(MM = millimetres)

in Tons of Refrigeration

Example orifi ce assembly

R22, R134a, R404A, R507, R407C, R410A

Refrig-erant

Tpe Pressure equal-isation

Connection Inlet x outlet

Code no.

Range N

−40/+50°F Range NM −40/−25°F −75/−15°FRange B

in without MOP MOP+60°F MOP +32°F without MOP MOP−4°F

R22

TCAE 1ext.

/4 in.

R134a

R404A R507

R407C

R410A

Capillary tube length 59.0 in

Ordering

TCAE, straightway

Thermostatic element without

orifi ce and with bulb strap

Ordering

TCBE, straightway

Thermostatic expansion valve

with bulb strap

R22, R134a, R404A, R507, R407C, R410A

Rated capacity 2) Orifi ce

no.

1)

Pressure equalisation

Connection Inlet x outlet

Code no.

Range N

−40/+10°C

R22

TCBE

ext.

1 /4 in.

R134a

R404A R507

R407C

R410A

Capillary tube length 36.0 in

Ordering

TCAE orifi ce assembly

with fi lter and gasket

Spare parts

Note: To secure tightness, the orifi ce gasket must

be changed each time the orifi ce is disassembled

2 ) The rated capacity is based

on ARI 750-97

1 ) TC with orifi ce no 3, cannot

be used for bifl ow ope ra ti on

1 ) TC with orifi ce no 3, cannot

be used for bifl ow ope ra ti on

Function

1 Bulb with capillary tube

2 Thermostatic element with

diaphragm

3 Setting spindle for adjustment

of static superheat SS

4 Orifi ce assembly

Superheat, TC

See fi g 5

Qnom. = rated capacity of the valve

Static superheat SS can be adjusted with setting spindle 3, see fi g 4 (TCAE/TCBE) Static superheat cannot be adjusted on TCCE

Fig 5 Superheat

Note:

Insuffi cient subcooling can produce fl ash gas.

Fig 4 TCAE, straightway

Example

Refrigerant = R22, range N Evaporating temperature te = −20 °F Pressure drop in valve Δp = 125 psi Subcooling Δtsub = 30°F

Evaporator capacity = 5 TR Correction factor (table) = 0.89 The corrected evaporator capacity thus is to be multiplied by 0.89 = 4.45 TR

Capacity Correction for subcooling Δt u

The evaporator capacity used must be corrected

if subcooling deviates from 10°F The corrected capacity can be obtained by multiplying the evaporator capacity by the correction factor given below

Since the expansion valve capacity must be equal

to or lightly more than the corrected evaporator capacity of 4.45 TR, a TC with orifi ce 1 and a table capacity of 4.68 TR (page 8) would be a suitable choice

R410A 1.14 1.00 0.89 0.83 0.77 0.72 0.68 0.65 0.61 0.59

The standard superheat setting SS is 9°F for valves without MOP and 7°F for valve with MOP The opening superheat OS is 7°F from when opening begins to where the valve gives its rated capacity Qnom.

Example

Refrigerant 0°F 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F

R22 1.08 1.00 0.94 0.89 0.85 0.81 0.78 0.74 0.71 0.68

When subcooling Δtsub ahead of the expansion valveis other than 10°F, adjust the evaporator capacity by multiplying by the appropriate

correction factor found in the following table

Correction factor for subcooling

Δt sub

Metric conversions

1 psi = 0.07 bar

5 /9 (t1°F – 32) = t2°C

1 ton = 3.5 kW

Capacities (TR)

R22

Range N: –40 → +50°F Δt sub = 10°F, OS = 7°F

Type Orifi ce

no.

Pressure drop across valve Δp psi

Type Orifi ce no.

Pressure drop across valve Δp psi

TC

1

2

3

4.13

4.98

6.20

4.80 5.84 7.19

5.27 6.37 7.90

5.62 6.79 8.43

5.88 7.12 8.85

6.08 7.36 9.16

6.22 7.55 9.14

6.33 7.76 9.59

TC 1 2 3

2.97 3.51 4.47

3.40 4.03 5.14

3.71 4.39 5.61

3.92 4.66 5.95

4.09 4.86 6.23

4.21 5.03 6.46

4.30 5.15 6.64

4.36 5.24 6.77

TC

1

2

3

3.95

4.74

5.93

4.57 5.50 6.87

5.02 6.04 7.49

5.34 6.43 8.06

5.59 6.74 8.43

5.77 6.96 8.73

5.90 7.15 8.96

6.01 7.27 9.15

TC 1 2 3

2.39 2.80 3.59

2.73 3.20 4.12

2.96 3.48 4.49

3.13 3.69 4.77

3.25 3.85 4.99

3.35 3.97 5.17

3.41 4.07 5.31

3.46 4.14 5.43

TC

1

2

3

3.50

4.17

5.28

4.04 4.81 6.08

4.41 5.27 6.65

4.68 5.60 7.09

4.89 5.85 7.42

5.04 6.02 7.68

5.15 6.20 7.89

5.23 6.32 8.05

TC 1 2 3

1.82 2.12 2.75

2.07 2.41 3.13

2.24 2.62 3.41

2.37 2.77 3.62

2.46 2.89 3.79

2.53 2.98 3.93

2.58 3.05 4.04

2.61 3.10 4.12

Range B: –75 → –15°F Δt sub = –10°F, OS = 7°F

Type Orifi ce

no.

Pressure drop across valve Δp psi

Type Orifi ce no.

Pressure drop across valve Δp psi

TC

1

2

3

2.76

3.52

4.57

3.15 4.05 5.24

3.44 4.44 5.76

3.65 4.74 6.17

3.81 4.98 6.51

3.94 5.19 6.79

4.03 5.35 7.04

4.11 5.50 7.25

TC 1 2 3

1.46 1.85 2.45

1.66 2.11 2.81

1.81 2.31 3.09

1.91 2.47 3.31

2.00 2.60 3.51

2.06 2.71 3.67

2.11 2.80 3.82

2.15 2.88 3.95

TC

1

2

3

2.28

2.93

3.83

2.63 3.37 4.41

2.87 3.69 4.84

3.04 3.95 5.18

3.17 4.15 5.40

3.28 4.32 5.72

3.36 4.46 5.94

3.42 4.58 6.13

TC 1 2 3

1.11 1.39 1.85

1.26 1.60 2.13

1.37 1.75 2.35

1.45 1.87 2.52

1.53 1.96 2.67

1.56 2.05 2.80

1.59 2.12 2.91

1.62 2.17 3.01

Evaporating temperature –45°F

TC

1

2

3

1.78

2.37

3.11

2.13 2.71 3.57

2.31 2.97 3.93

2.45 3.17 4.21

2.56 3.34 4.46

2.64 3.48 4.66

2.71 3.59 4.85

2.75 3.69 5.01

Refrigerant 0°F 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F

R134a 1.10 1.00 0.93 0.88 0.82 0.78 0.74 0.70 0.67 0.64

Correction factor

for subcooling Δt sub

When subcooling Δtsub ahead of the expansion valveis other than 10°F, adjust the evaporator capacity by multiplying by the appropriate

correction factor found in the following table

Metric conversions

1 psi = 0.07 bar

5 /9 (t1°F – 32) = t2°C

1 ton = 3.5 kW

Capacities (TR)

R134a

Range N: –40 → +50°F Δt sub = 10°F, OS = 7°F

Type Orifi ce

no.

Pressure drop across valve Δp psi

Type Orifi ce no.

Pressure drop across valve Δp psi

TC

1

2

3

2.86

3.65

4.66

3.30 4.23 5.33

3.57 4.53 5.77

3.76 4.77 6.10

3.90 4.96 6.32

3.98 5.07 6.49

4.04 5.14 6.60

4.06 5.19 6.67

TC 1 2 3

1.85 2.30 3.02

2.09 2.59 3.40

2.23 2.78 3.66

2.33 2.92 3.84

2.39 3.01 3.97

2.43 3.07 4.07

2.45 3.11 4.13

2.46 3.12 4.17

TC

1

2

3

2.69

3.41

4.39

3.08 3.89 5.00

3.33 4.21 5.41

3.51 4.41 5.70

3.63 4.59 5.91

3.70 4.70 6.05

3.75 4.77 6.16

3.77 4.81 6.22

TC 1 2 3

1.41 1.74 2.30

1.58 1.95 2.58

1.68 2.09 2.77

1.75 2.18 2.91

1.79 2.25 3.00

1.82 2.29 3.07

1.83 2.31 3.11

1.83 2.32 3.14

TC

1

2

3

2.28

2.89

3.75

2.60 3.27 4.24

2.80 3.52 4.57

2.93 3.69 4.79

3.02 3.81 4.97

3.08 3.90 5.09

3.11 3.95 5.17

2.12 3.98 5.23

TC 1 2 3

1.01 1.25 1.66

1.13 1.39 1.85

1.20 1.48 1.99

1.24 1.55 2.08

1.27 1.59 2.14

1.29 1.61 2.19

1.29 1.63 2.22

1.29 1.63 2.23

Refrigerant 0°F 10°F 20°F 30°F 40°F 50°F 60°F 70°F 80°F 90°F

Correction factor

for subcooling Δtsub

When subcooling Δtsub ahead of the expansion valveis other than 10°F, adjust the evaporator capacity by multiplying by the appropriate

correction factor found in the following table

Metric conversions

1 psi = 0.07 bar

5 /9 (t1°F – 32) = t2°C

1 ton = 3.5 kW

Capacities (TR)

R404A

Range N: –40 → +50°F Δt sub = 10°F, OS = 7°F

Type Orifi ce

no.

Pressure drop across valve Δp psi

Type Orifi ce no.

Pressure drop across valve Δp psi

TC

1

2

3

3.28

4.18

5.28

3.53 4.49 5.67

3.67 4.67 5.90

3.74 4.76 6.02

3.76 4.80 6.05

3.74 4.77 6.03

3.68 4.69 5.94

3.59 4.59 5.81

TC 1 2 3

2.44 3.06 3.97

2.59 3.25 4.22

2.67 3.35 4.36

2.71 3.40 4.43

2.71 3.41 4.45

2.68 3.39 4.43

2.63 3.33 4.37

2.56 3.26 4.28

TC

1

2

3

3.17

4.02

5.11

3.40 4.31 5.44

3.53 4.48 5.69

3.59 4.57 5.83

3.61 4.60 5.84

3.66 4.57 5.81

3.53 4.50 5.74

3.45 4.40 5.38

TC 1 2 3

1.98 2.46 3.22

2.09 2.60 3.41

2.15 2.68 3.52

2.17 2.71 3.58

2.16 2.71 3.59

2.13 2.69 3.56

2.09 2.64 3.51

2.03 2.57 3.43

TC

1

2

3

2.85

3.60

4.62

3.04 3.77 4.93

3.15 3.98 5.11

3.20 4.05 5.21

3.21 4.06 5.23

3.18 4.04 5.21

3.20 3.99 5.14

3.06 3.89 5.04

TC 1 2 3

1.53 1.88 2.48

1.59 198 2.62

1.63 2.03 2.70

1.64 2.05 2.73

1.63 2.04 2.73

1.61 2.02 2.71

1.57 1.98 2.66

1.52 1.92 2.59

Range B: –75 → –15°F Δt sub = –10°F, OS = 7°F

Type Orifi ce

no.

Pressure drop across valve Δp psi

Type Orifi ce no.

Pressure drop across valve Δp psi

TC

1

2

3

2.42

3.06

3.99

2.70 3.42 4.45

2.86 3.63 4.74

2.94 3.76 4.92

2.98 3.82 5.03

2.98 3.89 5.08

2.95 3.82 5.08

2.90 3.77 5.04

TC 1 2 3

1.33 1.66 2.21

1.46 1.83 2.44

1.53 1.93 2.61

1.57 1.99 2.71

1.58 2.02 2.76

1.57 2.02 2.78

1.55 2.00 2.78

1.51 1.96 2.75

TC

1

2

3

2.05

2.59

3.40

2.28 2.88 3.79

2.41 3.05 4.03

2.48 3.15 4.18

2.50 3.20 4.27

2.50 3.21 4.31

2.47 3.20 4.31

2.42 3.15 4.28

TC 1 2 3

1.01 1.26 1.69

1.11 1.38 1.87

1.16 1.46 1.98

1.18 1.50 2.05

1.19 1.51 2.09

1.18 1.51 2.11

1.15 1.49 2.10

1.12 1.46 1.07

Evaporating temperature –45°F

TC

1

2

3

1.69

2.11

2.80

1.86 2.34 3.10

1.96 2.47 3.30

2.01 2.55 3.43

2.03 2.59 3.50

2.02 2.60 3.53

1.99 2.58 3.53

1.95 2.54 3.50

Correction factor

for subcooling Δt sub

When subcooling Δtsub ahead of the expansion valveis other than 10°F, adjust the evaporator capacity by multiplying by the appropriate

correction factor found in the following table

Metric conversions

1 psi = 0.07 bar

5 /9 (t1°F – 32) = t2°C

1 ton = 3.5 kW

Capacities (TR)

R407C

Range N: –40 → +50°F Δt sub = 10°F, OS = 7°F

Type Orifi ce

no.

Pressure drop across valve Δp psi

Type Orifi ce no.

Pressure drop across valve Δp psi

TC

1

2

3

4.04

5.13

6.49

4.65 5.89 7.34

5.06 6.42 8.07

5.34 6.77 8.53

5.53 7.02 8.86

5.65 7.19 9.06

5.72 7.29 9.20

5.75 7.33 9.25

TC 1 2 3

2.82 3.55 4.54

3.22 4.03 5.14

3.47 4.34 5.55

4.64 4.56 5.84

3.74 4.71 6.04

3.81 4.81 6.19

3.85 4.87 6.28

3.86 4.89 6.33

TC

1

2

3

3.86

4.88

6.12

4.43 5.52 7.01

4.80 6.07 7.61

5.06 6.40 8.02

5.24 6.63 8.32

5.35 6.79 8.51

5.41 6.88 8.64

5.43 6.92 8.70

TC 1 2 3

2.26 2.80 3.61

2.55 3.16 4.08

2.73 3.39 4.39

2.85 3.56 4.61

2.93 3.67 4.77

2.98 3.74 4.88

3.01 3.79 4.95

3.01 3.80 4.99

TC

1

2

3

3.40

4.27

5.41

3.87 4.86 6.17

4.19 5 26 6.66

4.40 5.54 7.01

4.54 5.73 7.27

4.63 5.85 7.44

4.68 5.93 7.55

4.69 5.97 7.61

TC 1 2 3

1.69 2.08 2.71

1.90 2.34 3.05

2.03 2.51 3.29

2.12 2.63 3.45

2.18 2.71 3.56

2.21 2.76 3.64

2.22 2.79 3.69

2.22 2.80 3.72

Range B: –75 → –15°F Δt sub = –10°F, OS = 7°F

Type Orifi ce

no.

Pressure drop across valve Δp psi

Type Orifi ce no.

Pressure drop across valve Δp psi

TC

1

2

3

2.50

3.15

4.19

2.83 3.59 4.77

3.03 3.88 5.18

3.19 4.10 5.51

3.30 4.25 5.73

3.36 4.37 5.94

3.40 4.45 6.09

3.42 4.50 6.20

TC 1 2 3

1.27 1.59 2.15

1.43 1.79 2.44

1.53 1.94 2.66

1.60 2.04 2.82

1.64 2.11 2.95

1.67 2.16 3.05

1.69 2.20 3.13

1.69 2.22 3.19

TC

1

2

3

2.04

2.60

3.46

2.33 2.94 3.94

2.50 3.18 4.29

2.62 3.35 4.55

2.70 3.48 4.75

2.75 3.57 4.92

2.78 3.63 5.04

2.79 3.67 5.14

TC 1 2 3

0.95 1.19 1.61

1.07 1.34 1.83

1.14 1.44 1.99

1.19 1.52 2.12

1.22 1.57 2.21

1.24 1.61 2.29

1.25 1.63 2.34

1.25 1.65 2.39

Evaporating temperature –45°F

TC

1

2

3

1.65

2.06

2.77

1.85 2.33 3.15

1.99 2.52 3.43

2.08 2.65 3.64

2.14 2.75 3.81

2.18 2.82 3.94

2.20 2.87 4.04

2.21 2.90 4.12