Brochure

Emerson Climate Technologies
180
EX Extended Capacity Tables
Application Condensing Pressure Regulation and Liquid Duty - Nominal Capacities (kW)
Valve Type Kv, m3/h R407C R22 R134a R404A
EX5
0.68 18 20 18 13
EX6
1.57 43 46 42 30
EX7
5.58 153 162 151 106
EX8
16.95 463 491 458 323
The nominal capacity (Qn) is based on the following conditions:
Refrigerant Evaporating temperature Condensing temperature Subcooling Pressure Drop
R407C +4°C (dew point)
+38°C bubble point /
+43°C dew point
1K 0.35 bar
R22, R134a, R404A +4°C +38°C 1K 0.35 bar
Multiply above nominal capacities by following factors to obtain capacities at different pressure drops:
∆P, bar 0.15 0.20 0.35
Example:
The EX6 provides 30kW at 0.35bar pressure drop with R404A or
30*0.76=22.8 kW at 0.2 bar pressure drop.
Correction factor 0.65 0.76 1.00
R-134a Extended Capacities (kWatts) EX5-8 Series
Valve Type
Condensing
Temperature
°C
Evaporating Temperature (°C)
+10 0 -10 -20
EX5
+60
14 13 13 12
EX6
32 31 29 27
EX7
115 109 104 98
EX8
350 332 315 296
EX5
+50
16 15 15 14
EX6
37 36 34 32
EX7
133 127 121 115
EX8
405 387 369 350
EX5
+30
18 18 17 16
EX6
42 41 39 37
EX7
151 145 139 133
EX8
458 440 422 403
EX5
+40
20 20 19 18
EX6
47 46 44 42
EX7
168 162 156 150
EX8
512 493 474 455
EX5
+20
22 22 21 20
EX6
52 51 49 47
EX7
186 180 173 167
EX8
564 546 526 507