Taylor-Wharton Auto Fill Laser Pak - Manual (Page 15)

15
Figure 9: Piping schematic for typical installation
Electrical
Only persons experienced with industrial wiring should perform the electrical installation. The installation
should conform to the National Electrical Code and any applicable local requirements. The control panel,
instruments, and solenoid valves are preinstalled and wired. Power and alarm (if used) are to be installed and
wired by the customer.
Two 1/2” female conduit hubs are provided pre-installed in the bottom of the control panel. See sheet 2 of the
general arrangement drawing in the appendix. The hub on the left (when facing the panel door) is intended for
power wiring. The hub on the right is for the alarm.
Power
Power electrical requirements are 20 amps, 120 volts alternating current at 60 Hz. It is recommended that the
power wiring be enclosed in rigid metal conduit.
Important: Before wiring power, turn the power switch on the front of the panel, to the “Off” position. Push
the “Start/Stop” button to the inward position.
A 20-amp breaker is provided inside the control panel in the lower left corner. This is the hot power
connection. The neutral power wire may be attached to any of the neutral power terminals. They are located
immediately to the right of the 20-amp breaker and are labeled “N”. A ground lug is mounted on the
enclosure sub-panel. The ground power wire should be attached to the lug.
Error Alarm
The customer may install an error alarm. This is not required for operation. Note that an error indicator light
is pre-installed on the front of the control panel. The customer provides the alarm horn, buzzer, or light. The
alarm must be powered by 120 volts alternating current. Connect the hot power wire of the alarm to the
terminal labeled R1-1. Connect the neutral power wire to any of the neutral power terminals labeled “N”.
The ground wire, if required, should be attached to the ground lug mounted on the enclosure sub-panel. The
Auto-Fill Laser Pak controller will activate the alarm when an error has been detected. A selector switch on
Bulk Tank
Auto-Fill
Laser Pak
Vaporizer
Bulk Liquid
Withdrawal Valve
Strainer
Vaporizer
Relief Valve
Vaporizer Shut-
Off Valve
Relief
Valve
Final Line
Regulator
To
Application
CN-2 CN-1
To
Atmosphere System
Drain Valve
Control
Panel
Bulk Tank
Pressure Line