Operating instructions

INSTALLATION
15 Nov 09 3-5
ACD-1500Degasser
ELECTRIC POWER CONNECTIONS
WARNING! TO AVOID SERIOUS PERSONAL INJURY BE SURE POWER TO
EQUIPMENT IS LOCKED OUT, TAGGED OUT, AND DE-ENERGIZED BEFORE
BEGINNING ELECTRICAL INSTALLATION.
WARNING! MOTOR MUST BE OPERATED AT THE DESIGNATED SUPPLY
VOLTAGE AND FREQUENCY.
WARNING! A FUSED-DISCONNECT PRIMARY POWER SUPPLY WITH
SUFFICIENT INTERRUPTING CAPACITY TO CLEAR THE MAXIMUM FAULT
CURRENT CAPABILITY OF THE SYSTEM IS REQUIRED.
WARNING! ELECTRICAL CONNECTIONS MUST BE MADE IN ACCORDANCE
WITH THE NATIONAL ELECTRICAL CODE (NEC) AND ALL APPLICABLE
LOCAL CODES. FAILURE TO COMPLY MAY RESULT IN AN UNSAFE
CONDITION THAT COULD INJURE PERSONNEL OR DAMAGE EQUIPMENT.
ENSURE THAT ALL ELECTRICAL AND CONDUIT CONNECTIONS ARE
SECURE.
The electrical connections should be performed only by trained, qualified personnel familiar with
high-voltage applications and knowledgeable of National Electrical Code (NEC) standards and
other applicable state or local codes for installation of industrial equipment. A fused disconnect is
required for primary power supply.
The degasser is factory-wired to operate at either of the following two power configurations:
460/480Vac 60Hz Three-phase
380/400Vac 50Hz Three-phase
Refer to Section 8 for the wiring schematic for the machine’s power requirements. The fused
disconnect and wiring to the equipment shall be suitably sized and in accordance with NEC
standards and all applicable state and local codes.
Make the following electric power connections:
1. Install a fused disconnect device having sufficient interrupting capacity to clear the maximum
fault current capability of the power supply system.
2. Remove the plug from hole at bottom of the electrical control panel, install appropriate feed-
through into the hole, and attach rigid conduit. Pass three-phase cable through the conduit
and into the control panel.
3. Connect three-phase power leads to the terminal block at the lower left corner of the electrical
control panel as shown in Figure 3-4.
4. Turn on electric power, press START button, and confirm that pump motor rotates in correct
direction. Reverse two leads in electrical control panel, if motor rotation is opposite.
Note! If rotation is opposite, connections are reversed. Refer to Section 3 for
proper connection procedure.