GEA Bock HG88e - Manual (Page 30)

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8| Accessories
8.1 Capacity regulator
Fig. 27
LR 3
LR 1 LR 2
Delivery condition (from the factory):
Capacity regulator installed with cover
(transport protection). Fig. 28
WARNING Several capacity regulators cannot switch at the same time during
compressor operation! Otherwise the sudden change in load can
damage the compressor! Comply with the switching interval of 60 s.
•
Comply with the switching sequence:
Swiching on LR1 60s LR2 60s LR3
Swiching off LR3 60s LR2 60s LR1
Control unit
(pilot valve)
Cover
Magnetic coil
Fig. 29
Screw in control unit (pilot valve) with seal
ring and tight with 15 Nm.
Wet thread sides with ester oil.
Insert magnetic coil, fasten it with knurled
nut and connect it.
Fig. 30
ATTENTION If the capacity regulator is installed at the factory, the control com-
ponent (pilot valve) is subsequently installed and connected by the
customer. If the control component is not connected, the cylinder bank
is switched off permanently. Damage to the compressor is possible!
Before start-up, remove the cover at the capacity
regulator and replace it with the enclosed control
unit (pilot valve).
Attention! Compressor is under pressure!
Depressurize the compressor first.
Knurled nut
Seal ring