Taylor-Wharton Auto Fill Laser Pak - Manual (Page 19)

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Low Pressure Alarm – If the pressure of the vessel in Supply mode drops below this value the error alarm
and error indicator light will be activated.
System Vent to Bulk – The system will not vent back to the bulk tank if this parameter is turned off.
Setting Initial Setting Unit
Pressure Builder Open 450 psig
Pressure Builder Range 30 psi
Vent to Bulk 510 psig
Bulk Pressure High 230 psig
Low Pressure Alarm 370 psig
System Vent to Bulk On On/Off
Figure 12: Initial Settings
First Fill
The first fill should be performed manually. This is necessary to properly purge and control cooling of the
inner vessels. Calibration of the level transmitters is also covered in this procedure. It is recommended that
this procedure be performed once a year to recalibrate the level transmitters.
CAUTION: Follow the safety precautions at the beginning of this manual. Accidental contact with liquid or
cold gas can occur when operating the solenoid valve manual overrides.
1.
Press the start/stop button on the control panel inward. Turn the power switch to the “On” position.
Open the control panel door. With power on and the start/stop button pressed inward settings may be
adjusted on the graphic interface (Panel View) without running the system.
CAUTION:
Do not touch the wiring inside the control panel while power is activated. The
operator should touch only the graphic interface located in the upper right corner.
2.
Make sure that the manual override handles of all eight of solenoid valves are in the closed position.
The override is closed when the handle is turned counterclockwise fully. When closing the override,
the handle will move downward, away from the valve body.
3.
Slowly open the bulk liquid withdrawal valve. Open the valve completely.
4.
Turn the manual override handles of the vent solenoid valves (V-3A & V-3B) until venting begins.
Turn the handles two additional turns. The vessels are now being filled. First fill should be
performed slowly. The rate of filling can be adjusted by throttling the vent solenoid valves.
5.
While the vessels are filling, go to the control panel. On the graphic interface, from the default
screen, press “F3” to enter the setting adjustment screen. Press “F1” to enter the level scale screen.
The row labeled “Vessel Level” indicates the liquid level, in inches of water, for each of the vessels.
The vessel level reading will update continuously.