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09706-09.2013-DGbFEI

400 V

Direktstart YY Teilwicklungsstart Y/YY

1V1 1W11U1

2W12V12U1

L3L2L1 L3L2L1

L3L2L1

1V1 1W11U1

2W12V12U1

Direct start YYY

Part winding start Δ/YYY

ATTENTION! Failure to do this results in opposed rotary elds 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.

The motor is wired for direct start (YYY) at the factory. For part winding start Δ/YYY the bridges must

be removed and the motor feed line connected according to the circuit diagram:

INFO! Whentestingcoilswithresistancetester,pleasenotethatpartial

winding 1 and partial winding 2 are wired internally in HG7.

5.3 Standardmotor,designfordirectorpartwindingstart

Designation on the name plate Sticker on the terminal box

∆/YYY

Compressors with this marking are suitable for direct or partial winding start. The motor winding is

subdivided into two parts: Part winding 1 = 60% and part winding 2 = 40%. This winding division

reduces the start-up current needed for a part winding start to approx. 65% of that for a direct start.

INFO! A mechanical unloaded start with bypass solenoid valve is

 notrequired.

5| Electrical connection

GEA HG7 Series User Manual

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