Data Sheet for Product

14/20
Siemens Modulating refrigerant valves with magnetic actuator, PS45 CE2N4714en
Smart Infrastructure 2021-08-02
a) Refrigerant valve MVL661..-.. for capacity control of a dry expansion evaporator.
Suction pressure and temperature are monitored with a mechanical capacity
controller and reinjection valve.
• Typical control range 0...100%
• Energy-efficient operation with low loads
• Ideal control of temperature and dehumidification
40155A
*
b) Refrigerant valve MVL661..-.. for capacity control of a chiller.
• Typical control range 10...100%
• Energy-efficient operation with low loads
• Allows wide adjustment of condensing and evaporating temperatures
• Ideal for use with plate heat exchangers
• Very high degree of frost protection
40156A
A larger valve may be required for low load operation than is needed for full load
conditions. To ensure that the selected valve will not be too small for low loads, sizing
should take account of both possibilities.
Capacity control
Note
MVL661
MVL661