Sullair SRC-400 - Control System; Power Supply; Controls on the SRC-150 to 200

SRC Service Manual
Revision 02
Aug 2007
4. Control System
The SRC-150 to 200 feature a base analog controller, while the SRC-250 to 1000 are fitted with a
microprocessor.
4.1 Power Supply
The following power supplies are offered:
• 115V/1ph/60Hz +/-10% on SRC-125 & 150
• 230V/1ph/60Hz +/-10% on SRC-125 through 250
• 230V/3ph/60Hz +/-10% on SRC-250
• 460V/3ph/60Hz +/-10% on SRC-250 through 1000
• 575V/3ph/60Hz +/-10% on SRC-250 through 1000
4.2 Controls on the SRC-150 to 200
The SRC-150 to 200 use an analog controller. It features the following functions:
• Dryer on/off switch.
• Dryer on signal (green lamp).
• Alarm signal (red lamp).
• Dew point indicator
o green = dew point ok
o red = high dew point
o blue = risk of freezing
• Automatic restart (after power failure).
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