BE Pressure supply 80 Gallon Air Compressor AC5080B3 - Manual (Page 5)

Condensation Discharge Piping. If installing a
condensation discharge line, the piping must be at least
one size larger than the connection, as short and direct
as possible, secured tightly and routed to a suitable drain
point. Condensation must be disposed of in accordance
with local, state, and federal laws and regulations. WARNING! If an aftercooler, check valve, block valve,
or any other restriction is added to the compressor
discharge, install a properly sized ASME approved
safety/relief valve between the compressor discharge
and the restriction.
Wiring Installation
L2
L1
00857
L1
Electrical Service
Customer supplied wires
Pressure
Switch
M
Motor
B1 R1
L2
Pressure
Switch
00865
Motor
Starter
Overload
B1
M
L2
Motor
Starter
Contact
R1
L1
R2
Motor
Starter
Contact
B2
1A
FUSE
B3 R4
Motor
Starter
Coil
R5
Motor
Starter
Overload
R3
Electrical Service
Customer supplied wires
Motor
Pressure
Switch
00865
L2
L1
Model 459231
Top View - Pressure Switch
Model 459241
Side View - Motor Starter
General. The motor rating, as shown on the motor
nameplate, and the power supply must have compatible
voltage, phase and hertz characteristics.
Wire Size. The electrical wiring between the power
supply and electric motor varies according to motor
horsepower. Power leads must be adequately sized to
protect against excessive voltage drop during start-up.
Information for selecting proper wire size should be
provided by a qualified electrician. If other electrical
equipment is connected to the same circuit, the total
electrical load must be considered in selecting the
proper wire size. Do not use undersized wire.
NOTE: On units requiring a motor starter, connect line
power to the starter. DO NOT connect the line power to
the pressure switch. Magnetic Starter. If the motor installed on your
compressor has a motor reset button, it does not
require a magnetic starter. If the motor does not have
this button, connect the power leads to the starter
located under the compressor top plate.
Circuit Breaker. Refer to the National Electric
Code to determine the proper circuit breaker rating
required. When selecting a circuit breaker, remember
the momentary starting current of an electric motor is
greater than its full load current. Time delay or “slow-
blow” circuit breakers are recommended.
WARNING! The installation should be made by
a qualified electrician. If the products must be
reconnected for use on different types of circuits, the
re-connection should be made by qualified personnel.