Spectra Watermakers LB-1800C, Installation And Operating Manual

Page: 11 / 53

11
INSTALLATION
Control System Overview
VFD Speed controls
The VFD for the Pearson Pump is
mounted for easy access. This
speed control is configured for the
line voltage indicated on your order
and it converts this to 3 phase output
which allows for speed control.
It also provides “ soft start ” so the
motors will not draw more than their
normal full load.
Systems supplied with the optional
boost pump will use the same speed
control which can be connected to
the water maker (via the attached
control cable) so it will start when the
watermaker starts, or it can be oper-
ated independently.
In normal operation the toggle switch
should be in the AUTO position.
Three way Toggle Switch:
Up—AUTO
Middle—OFF
Down—Manual