Internal Wiring Diagrams
This section shows the internal wiring diagrams according to the supply voltage and the commercial reference of the cooling unit.
Legend of the symbols used in the internal wiring diagrams:
Si: Internal temperature sensor
Hcc: Compressor with case heater (for outdoor cooling units)
Cc: Compressor capacitor
Ps: DC power supply
Ci: Internal fan capacitor
Ca: Ambient fan capacitor
Mc: Compressor
Ma: Ambient fans
Mi: Internal fan
CC: Contactor
|
Supply voltage |
Commercial reference |
Diagram |
|---|---|---|
|
1 x 230 Vac +N |
NSYCU350DG NSYCUX350DG NSYCU600DG NSYCUX600DG NSYCUHD350DG NSYCUHD600DG NSYCU600RDG |
|
|
1 x 230 Vac +N |
NSYCU800DG NSYCU1KDG NSYCUX1KDG NSYCU1K2DG NSYCU1K6DG NSYCU1K6DG NSYCU2KDG NSYCU3K2DG NSYCUHD800DG NSYCUHD1KDG NSYCUHD1K6DG NSYCU800RDG NSYCU1K2RDG NSYCU1K5RDG NSYCU2KRDG |
(1) Used only for roof-mounted cooling units above 1.2 kW and 3 kW side-mounted cooling units. |
|
2 x 400/460 Vac |
NSYCU8002P4DG NSYCU1K2P4DG NSYCUX1K2P4DG NSYCUHD1K2P4DG NSYCU1K22P4DG NSYCU1K62P4DG NSYCUHD1K62P4DG |
(1) Used only for roof-mounted cooling units above 1.2 kW. |
|
3 x 400/460 Vac |
NSYCU2K3P4DG NSYCUX2K3P4DG NSYCUHD2K3P4DG NSYCU2K3P4RDG NSYCU3K23P4DG NSYCU3K3P4RDG NSYCU4K3P4DG NSYCU4K3P4RDG |
(1) Used only for 3 kW and 4 kW cooling units. (2) Used only for 2 kW roof-mounted cooling units. (3) Used only for 2 kW wall-mounted cooling units without pressure switch. |