Section 5
OPERATION
32
5.3 INITIAL START-UP PROCEDURE
The following procedure is used to make the initial
start-up of the vacuum system:
1. Read the preceding pages of this manual thor-
oughly.
2. Be sure that all preparations and checks
described in the Installation Section have been
made.
3. Crack open the shutoff valve to the system.
4. Start the vacuum system by pushing the START
button.
5. Check for possible leaks in piping.
6. Open valving in the system so that the inlet of the
inlet filter is as near to 0" Hg as possible. Check
the vacuum between the butterfly valve and the
vacuum unit. A capped tube tee located at the
back of the Sullicon can be used as a connec-
tion point to attach a vacuum gauge. This vacu-
um should be 15 in-Hg when the system vacu-
um is zero. If not, adjust the inlet valve and/or
linkage to attain 15 in-Hg.
7. Close system valving opened in Step 6.
8. Slowly close the shut-off valve and check that the
vacuum regulator is set correctly. If set correctly,
the vacuum system will unload at the desired
system vacuum. If adjustments are necessary,
see Control System Adjustments in the
Maintenance Section of this manual.
9. Open shut-off valve to service line.
10. Observe the operating temperature. If the oper-
ating temperature exceeds 200ºF (93ºC), your
cooling system or installation environment
should be checked.
11. Observe return line sight glass and mainte-
nance gauges.
12. Reinspect the vacuum system for temperature
and leaks the following day.
5.4 SUBSEQUENT START-UP PROCEDURE
On subsequent start-ups, check that the proper
level is visible in the fluid level sight glass and sim-
ply press the START button. When the vacuum sys-
tem is running, observe the instrument panel and
maintenance gauges.
5.5 SHUTDOWN PROCEDURE
To shut the vacuum system down, press the STOP
button.
5.6 AUTOMATIC RE-START OPTION
This option is sometimes requested on Sullair com-
pressors and Vacuum Systems. Its function is to
restart the package upon sensing the return of
incoming power after a power failure.
Prior to initial power-up or after routine mainte-
nance, make certain that:
1. If the vacuum system has dual control and is
equipped with a "hand-off-auto" selector switch,
the selector switch is in the "off" position.
2. If the vacuum system does not have dual control,
the push-pull maintained STOP button is in
maintained stop (depressed) position.
5.2 PURPOSE OF CONTROLS (CONTINUED)
CONTROL OR INDICATOR PURPOSE
SULLICON CONTROL Regulates the amount of gas allowed to enter the inlet
valve. This regulation is determined by the amount of
gas being admitted to the system.
VACUUM REGULATOR Opens an atmospheric pressure line to the Sullicon
Control allowing the Sullicon Control to regulate system
vacuum according to demand.
WATER REGULATING VALVE (WATER-COOLED
ONLY)
Regulates the amount of cooling water used in the
cooler to keep the machine running at a normal operat-
ing temperature of 180°F (82°C).
The circuit cannot discern between a
return of power after an outage and an
initial power-up during start-up or after
routine maintenance downtime.
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