MKS 651C - How To Change the Line Voltage

Chapter Two: Installation Setu
p
25
How To Change the Line Voltage
1. Check the current line voltage setting.
Refer to Figure 1 for the location of the voltage selector switch on the
low power
unit, or
to Figure 2, page 26, for the location of the switch on the
high power
unit. The label
above the switch (on either unit) shows the corresponding voltage range and fuse
requirements for either voltage setting.
2. Use a small device, for example, a screwdriver, to set the switch to the left position for
operation in the 115 V range, or to the right position for operation in the 230 V range.
Volta
g
e Selector
Switch
Fuses
Figure 1: Voltage and Fuse Data for the Low Power Unit