Gasboy 8700Q Series - Manual (Page 22)

GASBOY Series 8700Q
4-2 09/23/03
GROUNDING
To ensure proper operation of the equipment and provide the necessary safety factors, this unit
must be grounded. A ground wire (preferably green) 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 at 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 should be supplied from a dedicated breaker. No other equipment should be
powered from this breaker. Remote dispensers may be grouped together on a single breaker
when the submersible pump has its own breaker. It is recommended that no more than two
remote dispensers be powered from one breaker to maintain isolated control with the circuit
breaker panel in case of problems. Units directly driving pumps (suction or submersible) should
be supplied power from a separate breaker. A tag on the motor identifies the maximum current
draw of the motor. If two (2) pumps are supplied from one breaker, that breaker must be capable
of handling the load of both motors. In cases where multiple remote dispensers supply power to a
single submersible pump, all breakers controlling the remote dispenser must be on the same
phase of power. Failure to do this will damage the equipment. Provisions must be made to break
both legs of any AC circuit.
THE PUMP MOTOR
Pumps are shipped from the factory with motors wired according to the specifications given on the
order as to 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.
Many motor failures result from improper setting of the motor change-over plate. If set for 115
VAC and a 230 VAC feed is used, the motor will burn out after running only a short time. If set for
230 VAC and a 115 VAC feed is used, the motor will run very slowly and the starting field will soon
burn out.
MOTOR AMP RATINGS
The following chart shows the maximum running amperage that can be expected for each pump
motor, unless noted otherwise:
Models 115v/60hz units 230v/60hz units 230v/50hz units
8753QTW1, 8753Q, 8753QTW2,
8753QTW1M 10.0 5.0. 6.0
NOTES:
1. These numbers do not account for the higher load upon startup, nor up to one additional amp
associated with other electrical components (lights, solenoid valves, etc.).
2. The 8753QTW2 and 8753QTW1M have one pump motor per side.