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Connection Type
A permanently connected (hardwired) power sup-
ply is typically installed with wires running through
mounted and secured conduit. A disconnecting
means, such as a locking switch (see following
Figure), must be provided to allow the machine
to be disconnected (isolated) from the power
supply when required. This installation must be
performed by an electrician in accordance with all
applicable electrical codes and ordinances.
Locking
Disconnect Switch
Power
Source
Conduit
Ground
Figure 2. Typical setup of a permanently
connected machine.
Grounding Instructions
In the event of a malfunction or breakdown,
grounding provides a path of least resistance
for electrical current to reduce the risk of electric
shock. A permanently connected machine must
be connected to a grounded metal permanent wir-
ing system; or to a system having an equipment-
grounding conductor. All grounds must be verified
and rated for the electrical requirements of the
machine. Improper grounding can increase the
risk of electric shock!
Serious injury could occur if you connect
the machine to power before completing the
setup process. DO NOT connect to power
until instructed later in this manual.
Model G0637/G0638 (Mfd. Since 04/12)
Machine
Conduit
Ground
Extension Cords
Since this machine must be permanently con-
nected to the power supply, an extension cord
cannot be used.
Phase Converter
When using a phase converter, the power from
the manufactured power leg (sometimes called
the wild wire) can fluctuate. Connect the manu-
factured power leg to the 3L/2 terminal to prevent
damage to the IC board or transformer. The wire
from this terminal can handle some fluctuation
because it goes directly to the motor. The power
going to the 1L/2 and 5L/3 terminals goes to the
IC board and transformer and must be consistent
to prevent damage.
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