Quick Selection

Capacities
R22 R134a R404A/R507 R407C
Valve Cond.
Capacity in [kW] Capacity in [kW] Capacity in [kW] Capacity in [kW]
type/ temp. 3) Evaporating temp. [°C] Evaporating temp. [°C] Evaporating temp. [°C] Evaporating temp. [°C]
Orifice [°C] -35 -30 -10 0 5 -30 -10 -5 0 5 -40 -35 -30 -10 0 -10 -5 0 5 10
T2 / 0X
0.49 0.51 0.55 0.54 0.51 0.35 0.40 0.41 0.41 0.40 0.33 0.35 0.37 0.42 0.41 0.59 0.59 0.59 0.58 0.55
T2 / 00 0.95 1.00 1.1 1.1 1.1 0.61 0.73 0.75 0.77 0.77 0.61 0.66 0.70 0.85 0.88 1.2 1.2 1.3 1.3 1.2
T2 / 01 1.6 1.7 2.4 2.7 2.7 0.88 1.3 1.5 1.6 1.6 0.96 1.1 1.2 1.8 2.1 2.5 2.7 2.9 3.1 3.2
T2 / 02 2.2 2.5 3.5 3.9 3.9 1.2 1.9 2.0 2.1 2.2 1.3 1.5 1.7 2.6 3.0 3.7 4.0 4.3 4.5 4.6
25
T2 / 03 3.9 4.3 6.2 6.9 7.0 2.2 3.3 3.6 3.8 4.0 2.4 2.7 3.1 4.7 5.4 6.6 7.1 7.6 8.1 8.3
T2 / 04 5.7 6.4 9.1 10.2 10.5 3.2 4.8 5.2 5.6 5.9 3.5 4.0 4.6 7.0 8.0 9.8 10.6 11.4 12.0 12.5
T2 / 05 7.3 8.0 11.6 13.0 13.3 4.0 6.1 6.6 7.1 7.5 4.5 5.1 5.8 8.9 10.2 12.4 13.4 14.4 15.2 15.7
T2 / 06 8.9 9.8 14.1 15.9 16.3 4.9 7.5 8.2 8.7 9.1 5.5 6.2 7.1 10.8 12.4 15.1 16.4 17.6 18.6 19.2
T2 / 0X
0.53 0.55 0.60 0.61 0.60 0.37 0.44 0.45 0.45 0.46 0.32 0.34 0.36 0.42 0.43 0.61 0.62 0.63 0.63 0.62
T2 / 00 1.0 1.1 1.2 1.3 1.3 0.64 0.79 0.83 0.86 0.88 0.59 0.64 0.69 0.86 0.92 1.3 1.3 1.3 1.4 1.4
T2 / 01 1.7 1.8 2.6 3.0 3.2 0.93 1.4 1.6 1.7 1.9 0.92 1.1 1.2 1.8 2.2 2.7 2.9 3.1 3.3 3.5
T2 / 02 2.3 2.6 3.8 4.4 4.7 1.3 2.0 2.2 2.4 2.6 1.2 1.4 1.7 2.7 3.2 3.9 4.3 4.6 5.0 5.3
35
T2 / 03 4.1 4.6 6.8 7.9 8.4 2.3 3.6 4.0 4.4 4.7 2.2 2.6 3.0 4.8 5.7 7.0 7.6 8.3 8.9 9.4
T2 / 04 6.1 6.8 10.1 11.8 12.5 3.4 5.3 5.8 6.4 6.9 3.3 3.9 4.5 7.1 8.5 10.3 11.3 12.3 13.3 14.2
T2 / 05 7.7 8.6 12.8 14.9 15.8 4.2 6.7 7.4 8.1 8.8 4.3 4.9 5.6 9.0 10.7 13.0 14.3 15.6 16.7 17.8
T2 / 06 9.5 10.5 15.6 18.2 19.3 5.2 8.2 9.1 9.9 10.7 5.2 6.0 6.9 11.0 13.1 15.9 17.4 19.0 20 22
T2 / 0X
0.55 0.57 0.64 0.65 0.64 0.38 0.45 0.47 0.48 0.49 0.29 0.31 0.33 0.40 0.42 0.62 0.63 0.64 0.64 0.64
T2 / 00 1.0 1.1 1.3 1.4 1.4 0.65 0.82 0.86 0.90 0.94 0.55 0.60 0.64 0.83 0.90 1.3 1.3 1.3 1.4 1.4
T2 / 01 1.7 1.9 2.8 3.2 3.4 0.96 1.5 1.7 1.8 2.0 0.85 0.98 1.1 1.8 2.1 2.7 2.9 3.2 3.4 3.7
T2 / 02 2.4 2.7 4.0 4.8 5.1 1.3 2.1 2.4 2.6 2.8 1.1 1.3 1.5 2.6 3.2 3.9 4.3 4.7 5.2 5.6
45
T2 / 03 4.3 4.8 7.2 8.5 9.2 2.3 3.8 4.2 4.7 5.1 1.9 2.3 2.7 4.6 5.7 7.0 7.7 8.5 9.2 9.9
T2 / 04 6.3 7.1 10.7 12.7 13.7 3.4 5.6 6.2 6.9 7.6 3.0 3.5 4.1 6.9 8.4 10.4 11.5 12.6 13.8 14.9
T2 / 05 8.0 9.0 13.6 16.1 17.3 4.3 7.0 7.8 8.7 9.6 3.8 4.4 5.2 8.7 10.6 13.2 14.5 15.9 17.3 18.7
T2 / 06 9.8 11.0 16.6 19.6 21 5.3 8.6 9.6 10.7 11.7 4.7 5.5 6.4 10.6 12.9 16.0 17.7 19.4 21 23
T2 / 0X
0.56 0.58 0.65 0.67 0.67 0.38 0.45 0.47 0.49 0.50 0.26 0.28 0.30 0.37 0.39 0.60 0.61 0.62 0.63 0.63
T2 / 00 1.1 1.1 1.3 1.4 1.4 0.63 0.81 0.86 0.90 0.95 0.48 0.53 0.57 0.75 0.82 1.2 1.2 1.3 1.3 1.3
T2 / 01 1.7 1.9 2.8 3.3 3.6 0.95 1.5 1.7 1.9 2.0 0.74 0.86 1.0 1.7 2.0 2.6 2.9 3.1 3.4 3.6
T2 / 02 2.3 2.6 4.1 5.0 5.4 1.2 2.1 2.4 2.7 2.9 0.82 1.0 1.3 2.4 2.9 3.8 4.2 4.7 5.1 5.6
55
T2 / 03 4.3 4.8 7.4 8.9 9.6 2.2 3.8 4.3 4.8 5.3 1.5 1.8 2.2 4.2 5.3 6.8 7.5 8.3 9.1 9.9
T2 / 04 6.4 7.2 11.0 13.3 14.4 3.4 5.7 6.4 7.2 7.9 2.4 2.9 3.5 6.3 7.8 10.1 11.3 12.4 13.7 14.9
T2 / 05 8.1 9.1 14.0 16.7 18.1 4.2 7.0 8.0 9.0 10.0 3.0 3.7 4.4 7.9 9.9 12.8 14.2 15.7 17.2 18.7
T2 / 06 9.9 11.1 17.0 20 22 5.2 8.7 9.8 11.0 12.1 3.8 4.6 5.4 9.7 12.1 15.6 17.3 19.1 21 23
3) Condensing temperature at bubble point.
Correction factor
Refrigerant
Subcooling [K]
2 4 10 15 20 25 30 35 40 45 50
R22 0.98 1 1.06 1.11 1.15 1.20 1.25 1.30 1.35 1.39 1.44
R134a 0.98 1 1.08 1.13 1.19 1.25 1.31 1.37 1.42 1.48 1.54
R404A/R507 0.96 1 1.10 1.20 1.29 1.37 1.46 1.54 1.63 1.70 1.78
R407C 0.97 1 1.08 1.14 1.21 1.27 1.33 1.39 1.45 1.51 1.57
When the subcooling ≠ 4 K then:
1. Table value x Factor = Plant capacity
2. Plant capacity / Factor = Table value
Example:
Refrigerant = R407C
Q nom = 10 kW
t e = 0°C
t c = 55°C
Δt sub = 25 K
Selection:
1. T2, Orifice 04 = 12.4 kW x 1.27 = 15.75 kW → Valve too large
Thermostatic valve
+
Orifice
Right selection:
2. 10 kW / 1.27 = 7.9 kW → T2, Orifice 03
8