13–11–602 Page 20
Operation with incorrect motor rota-
tion can damage equipment and
cause water eruption from the com-
pressor inlet. When checking motor
rotation, induce minimum rotation
(less than one revolution if possible).
Never allow motor to reach full speed.
8.
System Pressure – Set the controls to the de-
sired unload pressure and differential. DO NOT
EXCEED THE MAXIMUM OPERATING PRES-
SURE ON THE COMPRESSOR NAMEPLATE.
See Section 4, “Controls and Instruments” for pro-
cedure.
Operation at excessive discharge air
pressure can cause personal injury or
damage to equipment. Do not adjust
the full discharge air pressure above
the maximum stamped on the unit
nameplate.
9. Operating Mode – Refer to Section 4 for detailed
information on the control system.
10. Enclosure – Check for damaged panels or doors.
Check all screws and latches for tightness. Be
sure doors are closed and latched.
STARTING THE UNIT – Observe the following starting
procedures.
Unit Cold – If the unit is a water–cooled heat exchang-
er model, open any manual water inlet valves wide
open. Start the unit by pushing either the “CONSTANT
RUN” button or one of the “AUTO” buttons. Since the
unit is equipped with a minimum (65 psig – 4.5 bars)
pressure discharge valve, no special procedure to
maintain unit reservoir pressure is required.
Unit Hot – No warm–up period is required. If the unit
is a water–cooled heat exchanger model, open any
manual water inlet valves wide open. Start the unit by
pushing either the “CONSTANT RUN” button or one of
the “AUTO” buttons.
DAILY CHECK – Refer to Section 8, “Maintenance
Schedule,” page 48.
STOPPING THE UNIT – Press the “STOP–RESET”
button. The air/water reservoir will automatically blow
down as the motor stops. If the unit is a water–cooled
heat exchanger type, close any manual water inlet
valves.
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: ......
