ST16135-00C
11
5
Installation and Commissioning
5.6
Regulated Speed Compressor Installation
The compressor should be installed generally as instructed for a
standard fixed speed compressor of the same power (kW) rating.
Electrical supply fuse sizes are the same as for standard fixed
speed compressors of the same power (kW) rating.
Alternatively, a circuit breaker (Type D) of suitable size and with
motor starting characteristics may be used to protect the
installation.
The maximum starting current under all starting conditions will not
exceed 150% motor full load current and will generally be no more
than 100% full load current.
The installation must be earthed in accordance with local
regulations. The use of RCDs is not recommended.
Water drain, filters or dryers fitted downstream of the compressor
discharge must be correctly sited to avoid excessive flow
restrictions to ensure stable operation of the speed control
system.
5.7
RS Operation with other Hydrovane
Compressors
Hydrovane RS compressors may be operated efficiently in
conjunction with other Hydrovane compressors fitted with
automatic stop-start control.
Adjust the RS minimum air line pressure to midway between the
maximum and minimum air line pressure settings of the other
compressor. The RS compressor will automatically assume the
lead compressor role after several cycles.
IMPORTANT NOTES:
If the RS compressor is operated with
other Hydrovane standard single speed compressors feeding a
common pressure system, the minimum air line pressure of the
RS compressor must be limited to the lowest maximum air line
pressure of the single speed machine(s). No attempt must be
made to increase the operating pressure of the single speed
machine(s).
The pressure transducer sensing point is located in a valve
housing adjacent to the outlet from the compressor. If the
pipework from the compressor to the system is restricted, or prone
to excessive pressure fluctuation, rapid speed changes and/or
frequent stopping and starting of the motor may occur.
Should this condition arise, consult a Hydrovane Distributor who
will arrange to re-site the pressure transducer location.
