Data Sheet for Product

5/10
Siemens Modulating refrigerant valves with magnetic actuator, PN 32 CE2N4722en
Smart Infrastructure 2020-12-21
Application examples
The diagrams shown here are principles only, without installation-specific details.
The heat recovery condenser is connected in parallel with the main condenser and is
controlled on the liquid side by a mixing valve.
Recommended pressure drop Dp
V100
across the fully-open valve
(control path 1 ® 3) 0.5 < Dp
V100
< 1 bar (see selection chart)
940239
–
+
+
3
2
1
Example:
Refrigeration capacity Q
0
Refrigerant
Condensation temperature t
c
Evaporation temperature t
0
Liquid temperature t
fl
Selected valve
Actual differential pressure Dp
v100
across valve
73 kW
R22
50 °C
+ 5 °C
45 °C
M3FK15LX
0,32 bar
The heat-recovery condenser is connected in series upstream of the main condenser
(the most common application). The selected control valve is sized for hot gas (see
data sheet 4721).
Recommended pressure drop Dp
V100
across the fully-open valve
(control path 1 ® 3) 0.5 < Dp
V100
< 1 bar (see selection chart)
940240
+
–
+
3
2
1
Example:
Refrigeration capacity Q
0
Refrigerant
Condensation temperature t
c
Evaporation temperature
0
Liquid temperature t
fl
Selected valve
Actual differential pressure Dp
v100
across valve
73 kW
R22
50 °C
5 °C
45 °C
M3FK32LX
0,45 bar
3-way hot-gas bypass
control
Hot
-
gas control