Danfoss Electronics TR 6 Data Sheet

MAKING MODERN LIVING POSSIBLE
Data sheet
Thermostatic Expansion Valves Type TR 6
Introduction The TR 6 series is a hermetic tight design, designed and developed with features especially for use in applications such as:
y Residential air conditioning systems y Split systems y Roof top units y Heat pumps y Light commercial air conditioning systems y Chillers
Features y Compact size - hermetic design
y Refrigerants & rated capacities ranging up to
- R22: 6.7 TR / 23.6 kW
- R410A: 7 TR / 24.5 kW
- Others on request
y Laser-welded power element
- Longer diaphragm life.
y Stainless steel capillary tube
- Tolerates more bending for easier installation and longer life.
- High strength and vibration resistance.
y Stainless steel bulb
- Self-aligning for fast and easy installation; secures with a single bulb strap/OEM strap
- More contact surface for better heat transfer
The TR design incorporates a hot-pressed brass body with the entire power element, including the capillary tube and bulb, fabricated from stainless steel. All valves are designed with balanced port which reduces the inuence from varying condensing pressures. The valves can be delivered with special connections and ttings both at the inlet and outlet and at the equalizer connec­tion.
y Balance port design y A complete program with internal check valve
with low pressure drop at full ow or without internal check valve.
y Adjustable or non-adjustable superheat, for
customer specic factory setting.
y Bleed function available. y Customer specic engravement. y Solder and mechanical connections y Straightway versions with xed orice and
with external equalization.
y UL listed, le SA7200
DKRCC.PD.AN0.A6.22 / 520H7258
Data sheet Thermostatic expansion valves , type TR 6
Valve program
Standard versions
Options on request
Technical data
Refrigerants:
R22 and R410A
Operating range:
+14 °F to +59 °F / –10 °C to +15 °C
Setting:
Fixed setting:
Static superheat in accordance with customers' specications.
Adjustable setting:
Factory static superheat of 7.2 °F / 4 °K.
Refrigerants:
Other refrigerants.
Range:
Other temperature ranges.
MOP:
Special MOP charges.
Capillary tube lengths:
20 In. / 0.5 m
38.4 In / 0.975 m
Max. operating temperature
Thermostatic element:
R22: max. 212 °F / 100 °C R410A: max. 212 °F / 100 °C
Valve body: 230 °F / 110 °C
Packing:
Single or industrial pack
Versions:
All valves are in straightway versions. With or without internal check valve.
Standard connections:
3
/8 in. ODF inlet x 1/2 in. ODF outlet x
1
/4 In are nut 24.3 inch length
Capillary tube length: 31.5 In /0.8 m
Options for Connections:
Inlet/Outlet:
– Inlet: 3/8 in. ODM, 3/8 in. ODF, 1/2 in. ODF, chatle,
aeroquip
– Outlet: 3/8 in. ODF, 1/2 in ODF, 5/8 in ODF, chatle,
aeroquip, are
Equalizer:
Cu capillary tube size: Ø 1/8 in. ¼ in. Flare Nut with l = 9.5, 16.9 or 24.3 in. Solder 1/8 in. ODM with l = 16.9 or 24.3 in. Solder 1/4 in ODF with l = 31.7 or 39.1 in.
Max. working pressure
MWP 630 psig / PS = 45.5 bar
Max. test pressure
680 psig / Pf = 47 bar
Identication
Essential valve data is given on the power element.
Main valve data example:
TR6 = Valve type R410A = Refrigerant
6.70 TR = Rated capacity Qnom
in Tons of Refrigeration MWP 630psig/ PS 45.5 bar = Max. working pressure in psig and bar
067Uxxxx = Code number BC1109D = Date making (BC=Mexico,
week 11, year 2009, weekday D=Thursday) +15/+60 °F = Evaporating temperature range in °F
-10/+15 °C = Evaporating temperature range in °C
Fig. 1
2 DKRCC.PD.AN0.A6.22 / 520H7258
Data sheet Thermostatic expansion valves , type TR 6
Design and function
Fig. 2 TR 6 with xed setting
1. Bulb
2. Thermostatic element
3. Push pin seal
4. Balanced port
5. Check valve
6. Setting spindle for adjustment of static superheat (SS)
7. Equalizer
8. Inlet connection
9. Outlet connection
Fig. 3 TR 6 with adjustable setting
The central push pin is sealed with a robust seal (pos. 3) that ensures maximum tightness and minimum friction through the lifetime of the valve.
The balanced port (pos. 4) ensures minimal superheat changes when condensing pressure varies. This feature makes the valve ideal for bi­ow operation.
Static superheat (SS) can be adjusted with the setting spindle (see g. 3, pos. 6) . The standard superheat setting is 3.6 ° F / 2 °K.
Fig. 4
Terminology (g.4)
SS = Static superheat OS = Opening superheat OSH = SS + OS = Operating superheat
Example
Static superheat SS = 3.6°F (2K) (factory setting) or according to customer specication.
Opening superheat OS = 7.2 °F (4K)
The opening superheat is 7.2 °F / 3.6 °C, i.e. from the point the valve begins to open up to nominal capacity. Opening superheat (OS) is a xed value and cannot be changed.
Operating superheat OSH = SS + OS OSH = 3.6 °F + 7.2 °F = 10.8 °F (6 °K)
OSH is the total superheat that can be measured on the system.
DKRCC.PD.AN0.A6.22 / 520H7258 3
Data sheet Thermostatic expansion valves , type TR 6
Application
TR 6
without
check valve
EVR/EVRH
Fig. 5. Traditional air conditioning system, cooling only
4-way
Indoor coil
valve
SGI/SGN/SGH
DCL/DML
Outdoor coil
TR 6
with check
valve
SGI/SGN/SGH
Fig. 6. Traditional air conditioning / heat pump system
Indoor coil Outdoor coil
TR 6 without check valve
Fig. 7. Simplied air conditioning / heat pump system (bi-ow)
Fig. 5 illustrates the diagram of a traditional air conditioning system where the TR 6 is controlling liquid injection in one direction only.
Fig. 6 illustrates a split air conditioning/heat pump system with cooling/heating mode and two thermostatic expansion valves, one for cooling mode and one for heating mode. The thermostatic expansion valves each has a built-in check valve, which has the function of preventing ow in one direction and allowing the ow in the opposite direction. It means that one thermostatic expansion valve is controlling liquid injection into the evaporator
DCB/DMB
4-way valve
has an open check valve allowing the liquid refrigerant ow in the liquid line.
Fig. 7 illustrates a similar system as the previous one, but this time it is a packed unit with a short distance between the evaporator and the condenser, the bi-ow feature of the TR 6 thermostatic expansion valve can be used. The two thermostatic expansion valves have, therefore, been replaced by one TR 6 bi-ow valve controlling liquid injection in both directions. The normal ow direction marked with an arrow should be used for the primary function, i.e. cooling or heating.
and the other thermostatic expansion valve
TR 6 with check valve
4 DKRCC.PD.AN0.A6.22 / 520H7258
Data sheet Thermostatic expansion valves , type TR 6
Ordering
Adjustable setting
Check valve capacity
Range N = 14 °F 59 °F (–10 °C +15 °C)
Rated capacity
1)
Q
Refrigerant
TR kW
3.3 11.4 3 067L5855
4.5 15.8 4 067L5856
R22
5.3 18.5 5 067L5857
5.6 19.6 6 067L5858
6.7 23.6 7 067L5859
3 10.5 3 067L5955
4 14.0 4 067L5956
R410A
5 17.5 5 067L5957
6 21.0 6 067L5958
7 24.5 7 067L5959
Pressure equalisation = ¼ in. ODF
1
) The rated capacity is based on: Evaporating temperature, t
Condensing temperature, t
2
) Partnumbers consist of a valve, bulbstrap and the following connectors: 1 Chatle 1 Aeroquip
3
8
/
" female connector
5
8
/
" female connector
= 90 °F / 32 °C, Opening superheat, OS = max. 7.2 °F / 4K
c
TC=90 °F/ 32 °C TI=75 °F/ 24 °C
nom
= 41 °F / 5 °C, Liquid temperature, tl = 82 °F / 28 °C,
e
Orice no.
R22 and R410A
Connection
3
/8 in. x 1/2 in. x 1/4 in. equalizer
with are nut ODF
Inlet × Outlet
2)
Mass ow lb/h
Dp (psi)
Fig. 8 Internal check valve for orice bypass in reverse ow (ow rate as a function of pressure dierential)
DKRCC.PD.AN0.A6.22 / 520H7258 5
Data sheet Thermostatic expansion valves , type TR 6
Capacity
US units
SI units
Capacity in TR for MAH +14/+59 °F at 7.2 °F static superheat SS
Type
TR 6
TR 6
Orice
no.
Evaporating temperature 0°F Evaporating temperature 20°F
3 1.48 1.63 1.72 1.77 1.80 1.81 1.81 1.79 1.99 2.21 2.32 2.39 2.42 2.43 2.41 2.39
4 2.17 2.38 2.50 2.56 2.59 2.59 2.57 2.53 2.88 3.17 3.31 3.39 3.41 3.41 3.38 3.33
5 2.67 2.91 3.05 3.11 3.14 3.13 3.10 3.05 3.49 3.83 3.99 4.07 4.10 4.08 4.03 3.97
6 2.85 3.11 3.24 3.30 3.32 3.30 3.26 3.21 3.72 4.07 4.24 4.32 4.33 4.31 4.25 4.18
7 3.49 3.79 3.93 3.98 3.98 3.94 3.87 3.79 4.55 4.95 5.14 5.21 5.21 5.16 5.08 4.97
Evaporating temperature 40°F Evaporating temperature 50°F
3 2.61 3.01 3.27 3.36 3.35 3.32 3.28 3.22 2.56 2.96 3.24 3.41 3.54 3.63 3.69 3.72
4 3.78 4.36 4.51 4.55 4.54 4.49 4.43 4.34 3.70 4.28 4.68 4.94 5.12 5.24 5.12 4.99
5 4.55 5.13 5.28 5.33 5.33 5.27 5.19 5.09 4.45 5.16 5.64 5.95 6.14 6.02 5.89 5.75
6 4.91 5.42 5.59 5.64 5.63 5.56 5.47 5.36 4.81 5.57 6.09 6.42 6.45 6.33 6.20 6.05
7 6.00 6.53 6.73 6.79 6.76 6.67 6.55 6.40 6.07 7.03 7.68 7.81 7.72 7.58 7.42 7.23
Pressure drop across valve D psi Pressure drop across valve D psi
50 75 100 125 150 175 200 225 50 75 100 125 150 175 200 225
Capacity in kW for MAH –10 °C/+15 °C at 4 °K static superheat SS
Type
TR 6
TR 6
Orice
no.
Evaporating temperature –17.8°C Evaporating temperature –6.7°C
3 5.18 5.71 6.03 6.21 6.31 6.34 6.32 6.27 6.98 7.72 8.13 8.36 8.47 8.49 8.45 8.36
4 7.61 8.34 8.74 8.96 9.05 9.05 8.98 8.87 10.08 11.08 11.60 11.86 11.95 11.92 11.82 11.65
5 9.34 10.20 10.67 10.90 10.98 10.95 10.85 10.69 12.22 13.39 13.98 14.26 14.34 14.28 14.12 13.89
6 9.98 10.87 11.34 11.56 11.62 11.56 11.42 11.23 13.03 14.25 14.85 15.11 15.17 15.08 14.89 14.62
7 12.23 13.25 13.75 13.94 13.93 13.79 13.55 13.25 15.92 17.34 18.00 18.25 18.25 18.06 17.77 17.39
Evaporating temperature 4.4°C Evaporating temperature 10°C
3 9.14 10.55 11.44 11.75 11.73 11.63 11.47 11.27 8.95 10.36 11.33 11.95 12.39 12.71 12.91 13.03
4 13.22 15.27 15.78 15.92 15.89 15.73 15.50 15.20 12.95 14.99 16.39 17.28 17.92 18.35 17.91 17.45
5 15.93 17.94 18.49 18.67 18.64 18.46 18.18 17.82 15.59 18.05 19.74 20.81 21.49 21.07 20.63 20.14
6 17.19 18.97 19.55 19.73 19.69 19.47 19.15 18.76 16.84 19.49 21.31 22.46 22.58 22.16 21.70 21.17
7 21.00 22.85 23.57 23.77 23.67 23.36 22.93 22.41 21.25 24.60 26.89 27.33 27.02 26.54 25.96 25.31
Pressure drop across valve D bar Pressure drop across valve D bar
3.5 5.2 6.9 8.6 10.3 12.1 13.8 15.5 3.5 5.2 6.9 8.6 10.3 12.1 13.8 15.5
R22
R22
Correction for subcooling Dt
The evaporator capacity used must be
sub
corrected if subcooling deviates from 7.2°F/ 4°K. The corrected capacity can be obtained by multiplying the evaporator capacity by the correction factor given below.
Correction factor for subcooling Dt
Correction factor
R22 1.00 1.06 1.11 1.15 1.20 1.24 1.29 1.33
4 °K 10 °K 15 °K 20 °K 25 °K 30 °K 35 °K 40 °K
7.2 °F 18 °F 27 °F 36 °F 45 °F 55 °F 63 °F 72 °F
sub
6 DKRCC.PD.AN0.A6.22 / 520H7258
Note: Insucient subcooling can produce ash gas.
Dt
sub
Data sheet Thermostatic expansion valves , type TR 6
Capacity (cont.)
US units
SI units
Capacity in TR for MAH +14/+59°F at 7.2°F static superheat SS
Type
TR 6
TR 6
Orice
no.
Evaporating temperature 0°F Evaporating temperature 20°F
3 1.48 1.67 1.79 1.86 1.90 1.93 1.94 1.94 1.87 2.13 2.30 2.40 2.46 2.50 2.51 2.51
4 2.20 2.47 2.63 2.72 2.78 2.81 2.81 2.80 2.74 3.12 3.36 3.49 3.56 3.60 3.61 3.59
5 2.71 3.05 3.23 3.34 3.41 3.43 3.43 3.41 3.36 3.82 4.10 4.25 4.33 4.37 4.37 4.35
6 2.91 3.25 3.45 3.56 3.62 3.65 3.64 3.61 3.59 4.08 4.37 4.53 4.61 4.65 4.64 4.61
7 3.58 3.99 4.22 4.34 4.40 4.41 4.39 4.34 4.42 5.00 5.34 5.52 5.61 5.64 5.62 5.56
Evaporating temperature 40°F Evaporating temperature 50°F
3 2.30 2,63 2.86 3.01 3.09 3.14 3.15 3.15 2.53 2.90 3.15 3.32 3.43 3.48 3.49 3.48
4 3.33 3.80 4.11 4.31 4.41 4.46 4.47 4.44 3.63 4.15 4.49 4.71 4.85 4.90 4.90 4.87
5 4.03 4.59 4.96 5.20 5.31 5.36 5.36 5.32 4.36 4.97 5.37 5.63 5.79 5.84 5.84 5.80
6 4.31 4.90 5.29 5.54 5.65 5.70 5.69 5.65 4.66 5.31 5.73 6.00 6.16 6.21 6.21 6.16
7 5.29 6.01 6.47 6.77 6.89 6.93 6.91 6.85 5.73 6.51 7.02 7.34 7.53 7.57 7.55 7.48
Pressure drop across valve D psi Pressure drop across valve D psi
50 75 100 125 150 175 200 225 50 75 100 125 150 175 200 225
Capacity in kW for MAH –10 °C/+15 °C at 4 °K static superheat SS
Type
TR 6
TR 6
Orice
no.
Evaporating temperature –17.8°C Evaporating temperature –6.7°C
3 5.19 5.86 6.25 6.50 6.66 6.76 6.79 6.79 6.53 7.47 8.06 8.40 8.62 8.74 8.79 8.78
4 7.69 8.65 9.19 9.53 9.73 9.83 9.85 9.80 9.60 10.93 11.75 12.20 12.47 12.60 12.63 12.57
5 9.50 10.66 11.31 11.70 11.92 12.02 12.02 11.95 11.76 13.37 14.34 14.87 15.16 15.30 15.31 15.22
6 10.17 11.39 12.07 12.47 12.68 12.77 12.74 12.65 12.58 14.28 15.30 15.84 16.13 16.26 16.24 16.13
7 12.53 13.98 14.76 15.19 15.40 15.44 15.36 15.20 15.46 17.51 18.70 19.32 19.63 19.73 19.66 19.47
Evaporating temperature 4.4°C Evaporating temperature 10°C
3 8.04 9.22 10.01 10.55 10.82 10.98 11.03 11.01 8.86 10.16 11.03 11.62 12.01 12.17 12.22 12.19
4 11.64 13.30 14.38 15.10 15.44 15.61 15.63 15.55 12.71 14.52 15.70 16.48 16.97 17.14 17.16 17.05
5 14.10 16.07 17.35 18.19 18.57 18.75 18.75 18.63 15.26 17.40 18.79 19.70 20.25 20.44 20.43 20.29
6 15.07 17.16 18.51 19.38 19.77 19.94 19.92 19.77 16.31 18.58 20.05 20.99 21.57 21.74 21.72 21.55
7 18.52 21.05 22.66 23.68 24.11 24.27 24.20 23.98 20.05 22.80 24.56 25.68 26.34 26.51 26.44 26.19
Pressure drop across valve D bar Pressure drop across valve D bar
3.5 5.2 6.9 8.6 10.3 12.1 13.8 15.5 3.5 5.2 6.9 8.6 10.3 12.1 13.8 15.5
R410A
R410A
Correction for subcooling Dt
The evaporator capacity used must be
sub
Note: Insucient subcooling can produce ash gas.
corrected if subcooling deviates from 7.2 °F/ 4 °K. The corrected capacity can be obtained by multiplying the evaporator capacity by the correction factor given below.
Correction factor for subcooling Dt
Correction factor
R410A 1.00 1.08 1.14 1.20 1.26 1.31 1.37 1.43
4 °K 10 °K 15 °K 20 °K 25 °K 30 °K 35 °K 40 °K
7.2 °F 18 °F 27 °F 36 °F 45 °F 55 °F 63 °F 72 °F
sub
Dt
sub
DKRCC.PD.AN0.A6.22 / 520H7258 7
Data sheet Thermostatic expansion valves , type TR 6
Sizing
t
l
pe~t
e
EVR/EVRH
Fig. 9
Q
e
SGI/SGN/SGH
DCL/DML
p
c
t
c
US units
Example:
Refrigerant R22
The corrected evaporator capacity then becomes
4.0 × 1.06 = 4.24 TR Evaporating temperature te = 40°F pe = 79 psi Condensing temperature tc = 118°F pc = 256 psi Pressure drop in liquid line,
As the selected valve must be equal to or slightly larger than the corrected evaporator capacity of 4.24 TR, the TR 6 with orice 4 having a table capacity of 5.4 TR would be a suitable choice.
drier and distributor system Dp2+ Dp1 = 27 psi
Pressure drop in valve Dp = 256 – 79 – 27 = 150 psi Subcooling Dt
= tc – tl = 18 °F
sub
Evaporator capacity = 4.0 TR Correction factor from table = 1.06
Capacity in TR for MAH +14/+59°F at 7.2°F static superheat SS
Type
TR 6
TR 6
Orice
no.
Evaporating temperature 0°F Evaporating temperature 20°F
3 1.48 1.63 1.72 1.77 1.80 1.81 1.81 1.79 1.99 2.21 2.32 2.39 2.42 2.43 2.41 2.39
4 2.17 2.38 2.50 2.56 2.59 2.59 2.57 2.53 2.88 3.17 3.31 3.39 3.41 3.41 3.38 3.33
5 2.67 2.91 3.05 3.11 3.14 3.13 3.10 3.05 3.49 3.83 3.99 4.07 4.10 4.08 4.03 3.97
6 2.85 3.11 3.24 3.30 3.32 3.30 3.26 3.21 3.72 4.07 4.24 4.32 4.33 4.31 4.25 4.18
7 3.49 3.79 3.93 3.98 3.98 3.94 3.87 3.79 4.55 4.95 5.14 5.21 5.21 5.16 5.08 4.97
Evaporating temperature 40°F Evaporating temperature 50°F
3 2.61 3.01 3.27 3.36 3.35 3.32 3.28 3.22 2.56 2.96 3.24 3.41 3.54 3.63 3.69 3.72
4 3.78 4.36 4.51 4.55 4.54 4.49 4.43 4.34 3.70 4.28 4.68 4.94 5.12 5.24 5.12 4.99
5 4.55 5.13 5.28 5.33 5.33 5.27 5.19 5.09 4.45 5.16 5.64 5.95 6.14 6.02 5.89 5.75
6 4.91 5.42 5.59 5.64 5.63 5.56 5.47 5.36 4.81 5.57 6.09 6.42 6.45 6.33 6.20 6.05
7 6.00 6.53 6.73 6.79 6.76 6.67 6.55 6.40 6.07 7.03 7.68 7.81 7.72 7.58 7.42 7.23
Pressure drop across valve D psi Pressure drop across valve D psi
50 75 100 125 150 175 200 225 50 75 100 125 150 175 200 225
R22
8 DKRCC.PD.AN0.A6.22 / 520H7258
Data sheet Thermostatic expansion valves , type TR 6
Dimensions and weights
Fixed setting
Adjustable setting
All dimensions in inches
Fig. 10
All dimensions in inches
Fig. 11
Weight
0.57 lbs
Weight
0.67 lbs
9 DKRCC.PD.AN0.A6.22 / 520H7258 © Danfoss A/S (AC-MCI sw) 2012-12
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