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13–11–602 Page 51
SECTION 10
TROUBLE SHOOTING CONTROLS
AUTO SENTRY ES CONTROLLER
DISPLAY MODES
The normal display indicates the package service pressure, the airend discharge, the total running hours, and one
of the following operating modes. The green light will be on for any operating mode, whether the compressor is run-
ning or not.
READY
The compressor has been stopped by pressing the [STOP/RESET] key.
CON
The compressor is operating in the Constant Run mode.
LDM
The compressor is operating in the Low Demand mode.
AUTO
The compressor is operating in the Automatic mode.
SEQ n
The compressor is operating in the sequence mode.
The following alternate displays may be called by pressing a cursor [<] or [>] key
DIS TMP
The temperature at the airend discharge
RES PRES
The pressure in the air/water reservoir
DIF PRES
The pressure drop across the air/water/separator
RES TMP
The temperature at the air/water reservoir
SYS PRES
The pressure downstream of the air/water separator
TOT HRS
The total hours of compressor running
BD TMR
The time remaining before a blowdown will be allowed
AUTO TMR
The time remaining of unloaded motor operation
ADVISORY TROUBLE SHOOTING GUIDE
All advisories are indicated on the keypad by a yellow indicator in the Status area and one of the following messages
alternating with the normal lower line display. Perform service or maintenance as indicated, then clear the advisory
as instructed in Section 4.
Message
Action Needed
CHNG AIR FILTER
Excessive vacuum has been detected after the air filter, indicating it has
become full. Change the air filter to ensure maximum air delivery.
CHNG H
2
O FILTER
The differential pressure across the water filter has risen to over 30 psig.
Change the filter to ensure an adequate flow of coolant.
CHNG OIL FILTER
The unit has been operated for the programmed number of hours since
the last filter replacement. Change the filter to ensure an adequate flow
of lubricant.
CHANGE OIL
The unit has been operated for the programmed number of hours since
the last oil change. Change the oil to ensure lubricant quality.
HIGH DISCH TEMP
The temperature was greater than 180
_
F (82
_
C) at: (1) the air end
HIGH OIL TEMP
discharge, (2) oil injection or (3) the package service connection. Ensure
HIGH SYS TEMP
that the compressor receives adequate cooling air or water, and that the
coolers are not plugged
Summary of Contents for TWISTAIR EWDQ D
Page 14: ...13 11 602 Page 4 FIGURE 1 6 AIR WATER SCHEMATIC FIGURE 1 7 OIL SCHEMATIC...
Page 17: ...13 11 602 Page 7 DECALS 206EAQ077 212EAQ077 218EAQ077 211EAQ077 207EAQ077...
Page 18: ...13 11 602 Page 8 DECALS 216EAQ077 206EWD077 222EAQ077 221EAQ077 208EAQ077...
Page 35: ...13 11 602 Page 25 FIGURE 4 2 FLOW CHART FOR SET UP PROGRAMMING...
Page 44: ...13 11 602 Page 34 FIGURE 4 6 CONTROL TUBING SCHEMATIC 206EWD797 A Ref Drawing...
Page 48: ...13 11 602 Page 38 FIGURE 4 10 WIRING DIAGRAM FULL VOLTAGE 202EWD546 REF DRAWING...
Page 49: ...13 11 602 Page 39 FIGURE 4 11 WIRING DIAGRAM WYE DELTA 203EWD546 REF DRAWING...
Page 50: ...13 11 602 Page 40 FIGURE 4 12 AUTO SENTRY ES CONTROLLER DISPLAY...
Page 53: ...13 11 602 Page 43 FIGURE 5 2 FLOW DIAGRAM AIR COOLED 202EWD797 B Ref Drawing...
Page 54: ...13 11 602 Page 44 FIGURE 5 3 FLOW DIAGRAM WATER COOLED 203EWD797 A Ref Drawing...
Page 68: ......