Initial Start-Up Procedure; Subsequent Start-Up Procedure; Shutdown Procedure - Sullair LS20T Operator's Manual And Parts List

Section 6
OPERATION
6.2 PURPOSE OF CONTROLS (CONTINUED)
CONTROL OR INDICATION
BLOWDOWN SOLENOID VALVE
BLOWDOWN VALVE
EMERGENCY STOP SWITCH

6.3 INITIAL START-UP PROCEDURE

Do Not attempt to start compressor more than
once over a period of thirty minutes.
The following procedure should be used to make
the initial start-up of the compressor.
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 fan
(refer to Section 4.7).
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, consult
Differential Pressure Regulator Adjustment
30
.
PURPOSE
Opens when a demand for an unload/shutdown condition
exists. When valve is opened, it will supply air to the blow-
down valve.
Vents sump pressure to the atmosphere during unload/shut-
down conditions.
Pushing in this switch, found adjacent to the Supervisor, cuts
all AC outputs from the latter and de-energizes the starter. A
fault message (E STOP) is displayed by the Supervisor until
the button is pulled out and the
Section 7( Maintenance) of this 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

Do Not attempt to start compressor more than
once over a period of thirty minutes.
On subsequent start-ups, check that the proper
level is visible in the fluid sight glass and simply
press the START
When the compressor is running, observe the
instrument panel and maintenance indicators.

6.5 SHUTDOWN PROCEDURE

To shut the compressor down, simply press the
STOP button.
in
pad is depressed.
or AUTO MODE button.