GEA HGZ7 Series, Руководство по сборке, Страница: 24 / 42

24
D
GB
F
E
09726-09.2015-DGbF
400 V
Direktstart YY Teilwicklungsstart Y/YY
1V1 1W1 1U1
2W1 2V1 2U1
L3 L2 L1 L3 L2 L1
L3 L2 L1
1V1 1W1 1U1
2W1 2V1 2U1
Direct start Part winding start
6 | Electrical connection
6.3 Standard motor, design for direct or partial winding start
The motor is wired for direct start (YY) at the factory. For part winding start Y/YY the bridges must be
removed and the motor feed line connected according to the circuit diagram:
INFO A mechanical unloaded start with bypass solenoid valve is
not required
.
ATTENTION Failure to do this results in opposed rotary fields and results in
damage to the motor. After the motor starts up via partial winding
1, partial winding 2 must be switched on after a maximum delay
of one second . Failure to comply can adversely affect the service
life of the motor.
INFO When testing coils with resistance tester, please note that partial
winding 1 and partial winding 2 are wired internally in HGZ7.
Compressors with this marking are suitable for direct or partial winding start. The motor winding is
subdivided into two parts:
Part winding 1 = 50% and part winding 2 = 50%.
This winding division reduces the start-up current needed for a part winding start to approx. 50% of
that for a direct start.
Designation on the name plate Sticker on the terminal box
Y/YY
Y/YY