Location; Internal Wiring Check; Connecting The Machine To Line Voltage; Section 2. Installation - Hobart GPU-600 Operation And Maintenance Manual

SECTION 2. INSTALLATION

A. Location
For best operating characteristics and longest unit life, select an installation site that is not exposed to
high humidity, dust, high ambient temperature, flooding, or corrosive agents. Moisture can condense on
electrical components, causing corrosion or shorting of circuits. Dirt on components helps retain this mois-
ture in addition to providing a conducting material.
Adequate air circulation is needed at all times in order to assure proper operation. Provide a minimum of
12 inches (305mm) of free air space at both front and rear of the unit. Make sure that the ventilator open-
ings are not obstructed.
B. Internal Wiring check
Refer to the product identification plate (nameplate) on the machine's control panel to determine the
power input voltages and frequency at which it will be operated.
WARNING: ELECTRIC SHOCK CAN KILL. OPEN THE DISCONNECT SWITCH,
OR BREAKER, AND DETERMINE THAT NO VOLTAGE IS PRESENT, BEFORE
CONNECTING WIRES BETWEEN THE INPUT SERVICE AND POWER SUPPLY
OR WORKING ON THE POWER SUPPLY.
CAUTION: RECONNECTION OF CONTROL TRANSFORMER AS WELL AS MAIN INPUT CON-
NECTION PANEL MUST BE MADE WHEN CHANGING RATED INPUT VOLTAGE. SEE CHANGE-
OVER DIAGRAM.
Remove cabinet top for access to LINE VOLTAGE MAIN CHANGEOVER circuitry. Check line voltage
connections against instructions on the VOLTAGE CHANGEOVER DIAGRAM supplied with this manual.
If necessary, rearrange internal wiring and/or link connections to agree with the requirements for your in-
put.
C. Connecting the Machine to Line Voltage
The input power should be connected to the input terminals on the lifting baffle via a suitable disconnect-
ing means furnished by the user. Select the proper sized knock-out hole provided in the rear panel of the
machine to allow for the entry of the input conductors. Be certain the cable inside the power supply will
not contact the fan or hot parts. The lower holes may give a bit less weather leakage.
CAUTION: THE METHOD OF INSTALLATION, CONDUCTOR SIZE, AND OVERCURRENT PRO-
TECTION SHALL CONFORM TO THE REQUIREMENTS OF THE LOCAL ELECTRICAL CODE,
THE NATIONAL ELECTRICAL CODE, OR OTHER NATIONAL CODES, AS APPLICABLE. ALL IN-
STALLATION WIRING AND MACHINE RECONNECTION SHALL BE DONE BY QUALIFIED PER-
SONS.
April 10/89 Revised
OM-2010
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