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Contents

1. Selecting the valve.......................................................................................................................................................................................................................................7

2. Installing the valve.......................................................................................................................................................................................................................................7

2.1 Diagram of the refrigerant circuit............................................................................................................................................................................................................................7

2.2 In-line filter ..................................................................................................................................................................................................................................................................8

2.3

Flow of refrigerant and spatial orientation of the valve

.......................................................................................................................................................................................8

2.4 Welding.........................................................................................................................................................................................................................................................................8

3. Positioning the probes................................................................................................................................................................................................................................9

3.1 Ideal position of the probes .....................................................................................................................................................................................................................................9

3.2 Positioning with external pressure probe........................................................................................................................................................................................................... 10

3.3 Positioning for reverse-cycle heat pumps (E

V in bi-directional operation)............................................................................................................................................... 10

4. Installing the probes .................................................................................................................................................................................................................................11

4.1 Suction temperature probe ................................................................................................................................................................................................................................... 11

4.2 Evaporation pressure transducer.......................................................................................................................................................................................................................... 12

5. Electrical connections ...............................................................................................................................................................................................................................13

5.1 Connecting the valve to the driver.......................................................................................................................................................................................................................13

5.2 Probe and power supply connections ................................................................................................................................................................................................................14

5.3 Battery module connection (for closing the valve).......................................................................................................................................................................................... 14

6. Electronic valve control devices .............................................................................................................................................................................................................16

6.1 Drivers ................................................................................................................................................................................................................................................................................... 16

6.2 Controllers with built-in driver ......................................................................................................................................................................................................................................... 17

7. Control devices: basic parameter settings.............................................................................................................................................................................................17

8. Control devices: advanced parameter settings.....................................................................................................................................................................................18

8.1 Superheat control parameters .............................................................................................................................................................................................................................. 18

8.2 Protection function control parameters............................................................................................................................................................................................................. 19

8.3 Recommended parameters...................................................................................................................................................................................................................................19

9. Start-up .......................................................................................................................................................................................................................................................22

9.1 Selecting the superheat set point.........................................................................................................................................................................................................................22

9.2 Control techniques ..................................................................................................................................................................................................................................................22

10. Troubleshooting...................................................................................................................................................................................................................................24

installation control