Dulas VC150SDD, Инструкция по установке и руководство техника

Страница: 36 / 47

VC150SDD Installation & Technician’s Manual
Page 36 of 47
Section 3. How to check that the compressor is working
The Secop compressor and compressor controllers are a well-established design and are very
robust.
Note: Terminology in this procedure refers to the diagram on the following page and also
section 27. VC150SDD Electrical Schematic
Before testing the compressor confirm that the PV array is working – see Section 2.
To test the compressor and compressor controller it can be directly connected to the PV as
follows, be sure to have confirmed that the PV array is working first:
1. Switch the PV isolator off (indicated by a “0”).
2. Wait two minutes or more to ensure the capacitor has discharged
3. Remove the four screws that secure the Dulas SDD controller cover and lift off cover.
4. Make a note of the connections to connector J1 so that they can be reconnected correctly
after completing the test.
5. Disconnect connector J1. Remove the two PV cables. Switch the PV isolator on (indicated
by a “1”). Check the open circuit voltage and short circuit current of the PV array.
6. Temporarily connect the PV cables to the compressor cables and capacitor cables. The
circuit board has labels by the connector.
PV+ cable should be connected to F1+ cable and C+ cable. These three cables
should be the same colour.
PV- cable should be connected to F1- cable and C- cable. These three cables
should be the same colour.
7. Disconnect connector J3, make a short circuit between the two wires leading to the
compressor.
8. Switch the PV isolator on. Check that the compressor is running. After running for a few
minutes the condensers should both start to get warm.
9. If the compressor runs and after ten minutes the condensers get warm it can be assumed
the compressor, compressor controller and refrigeration circuit are working.
10. Switch off the PV at the isolating switch. Now replace the connections to their original
condition:
Remove the short on the J3 connector and reconnect it to the circuit board.
Reconnect the PV, capacitor, and fridge cables to the J1 connector and reconnect
to the circuit board.
11. If the PV array is working and the compressor is working go to the next section to test the
Dulas SDD controller.