Gasboy 580 Series - Manual (Page 18)

Wiring Grounding
Page 14 MDE-4766 Series 580 Installation/Operation/Parts Manual · April 2009
Grounding
To ensure proper operation of the equipment and provide the necessary safety factors, this unit
must be grounded. A ground wire (green or green with yellow stripe) must be connected
between the unit’s AC junction box ground lug and the main electrical service panel. One (1)
earth ground connection is required per unit. The ground rod is to be a solid, corrosion-
resistant conductor and must be installed on the main electrical panel in accordance with the
National Electrical Code. It should be properly tied into the ground bus strip of the panel. We
recommend the neutral and ground bus strips be bonded together (unless prohibited by local
codes).
Circuit Breakers
Power to the unit must be supplied from a dedicated breaker. No other equipment should be
powered from this breaker. A tag on the motor identifies the maximum current draw of the
motor. If two units are supplied from one breaker, that breaker must be capable of handling the
load of both motors.
Pump Motor
Pumps are shipped from the factory with motors wired according to the specifications given
on the order regarding kind of current, frequency and voltage.
Very often on installation, it becomes necessary to change the original setting to suit the AC
power source. To do this, locate the motor change-over plate (typically located on the shaft
end of the motor) and remove the screw which secures it in place. Slide the plate so that the
desired voltage, as marked on the plate, lines up with the screw hole. Reinsert the screw and
secure the plate in place. 380 VAC pumps are permanently set and cannot be changed.
Many motor failures result from improper setting of the motor change-over plate. If set for
120 VAC and a 240 VAC feed is used, the motor will burn out after running only for a short
time. If set for 240 VAC and a 120 VAC feed is used, the motor will run very slowly and the
starting field will soon burn out.
Note: These numbers do not account for the higher level upon startup.
Motor Amp Ratings
Models 115 V/60 Hz Units 230 V/60 Hz Units 230 V/50 Hz Units 380 V/50 Hz Units
582 6.8 3.4 4.0 N/A
583 10.6 5.3 6.3 1.5