GEA Bock HG34e A - Manual (Page 16)

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96191-11.2014-DGbFE
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R1 Cold conductor (PTC sensor) motor winding
R2 Thermal protection thermostat (PTC sensor)
F1 Load circuit safety switches
F2 Control power circuit fuse
F3 Safety chain (high/low pressure monitoring)
B1 Release switch (thermostat/pressostat)
Q1 Main switch
5.3 Circuit diagram for direct start 230 V ∆ / 400 V Y
Fig. 21
Compressor terminal box