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4.3
Electrical connections
Always disconnect the power supply before working on the electrical circuit!
General instructions
Step
Action
1
Install an isolating switch near the compressor.
2
Check the fuses and the setting of overload relay. See
Settings for overload relay and
fuses.
3
If fitted, check transformers for correct connection.
4
Connect the power supply cables to terminals L1, L2 and L3 (1X0) and the neutral
conductor (if applicable) to terminal (N). Connect the earth conductor.
The power supply cable delivered with the compressor must be protected by raceway or
by a suitable conduit system.
Specific voltage change instructions for units with 208 V / 230 V / 460 V cubicle
The standard voltage configuration for the compressor is mentioned on the data plate of the
machine.
When the compressors leave the factory, the units are connected for 230 V / 3 phase.
To modify the wiring for an operating voltage of 208 V or 460 V, the main cubicle should be
rewired as described below:
Instruction book
48
2920 7114 70
Содержание QRS 10
Страница 2: ......
Страница 18: ...2 3 Oil system Oil system Oil system units with dryer Instruction book 16 2920 7114 70 ...
Страница 23: ...Electric cubicle UL DOL Instruction book 2920 7114 70 21 ...
Страница 51: ...208 230 460V 60Hz Instruction book 2920 7114 70 49 ...
Страница 74: ...8 Problem solving Control panel Air outlet valve Instruction book 72 2920 7114 70 ...
Страница 75: ...Oil filler plug Condensate drain valve on air receiver Instruction book 2920 7114 70 73 ...
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Страница 86: ...No 2920 7114 70 2017 03 Printed in Belgium People Passion Performance www cp com ...