Sullair LS-200 - Initial Start-Up Procedure; Subsequent Start-Up Procedure; Shutdown Procedure

Section 6
OPERATION- ELECTRO-MECHANICAL
45
6.2 PURPOSE OF CONTROLS GUIDE- ELECTRO-MECHANICAL (CONTINUED)
CONTROL OR INDICATOR PURPOSE
PRESSURE SWITCH
BLOWDOWN VALVE
Senses service line pressure. When line pressure reaches
maximum setting the pressure switch signals the pilot valves
to unload the compressor.
Vents sump pressure to the atmosphere during unload condi-
tions and shutdown.
6.3 INITIAL START-UP PROCEDURE
Refer to Figure 6-1. The following procedure should
be used to make the initial start-up of the compres-
sor.
1. Be sure that all preparations and checks
described in the Installation Section have been
made.
2. Read the preceding pages of this manual thor-
oughly.
3. Jog motor to check for correct rotation of main
motor or fan motor (refer to Section 4.8).
4. Start the compressor in the desired operating
mode or .
5. Slowly open the shut-off valve to the service line.
6. Check for possible leaks in piping.
7. Slowly close the shut-off valve to assure proper
nameplate pressure unload setting is correct.
The compressor will unload at nameplate pres-
sure. If adjustments are necessary, see Control
System Adjustment section in the compressor
operator’s manual.
8. Observe the operating temperature. Refer to
compressor operator’s manual for acceptable
operating range. If temperature exceeds this
range, the cooling system and installation envi-
ronment should be checked.
9. Open shut-off valve to the service line.
10. Reinspect the compressor for temperature and
leaks the following day.
6.4 SUBSEQUENT START-UP PROCEDURE
Refer to Figure 6-1. On subsequent start-ups,
check that the proper level is visible in the fluid sight
glass and simply press the START or AUTO
MODE button. When the compressor is run-
ning, observe the instrument panel and mainte-
nance indicators.
6.5 SHUTDOWN PROCEDURE
Refer to Figure 6-1. To shut the compressor down,
press the STOP button.
Before initial start up check that fluid is at prop-
er level in the sight glass (see Figure 3-1).
Grease motor per manufacturer’s recommenda-
tions.