Electrical Installation - Speedaire 4B242A Manual De Instrucciones Y Lista De Piezas

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Speedaire Operating Instructions and Parts Manual
Models 4B242A and 4B243A
Installation
(Continued)
pump and service piping.
The unit should be mounted on a flat,
even surface.
PIPING
Never use plastic
(PVC) pipe for
compressed air. Serious injury or death
could result.
Bury underground lines below the frost
line and avoid pockets where conden-
sation can gather and freeze.
Apply air pressure to the piping instal-
lation and make sure all joints are free
from leaks BEFORE underground lines
are covered.
Before putting the compressor into ser-
vice, find and repair all leaks in the pip-
ing, fittings and connection.

ELECTRICAL INSTALLATION

All wiring and
electrical connec-
tions must be performed by a qualified
electrician. Installations must be in
accordance with local and national
codes.
GROUNDING
This product must be grounded.
Grounding reduces the risk of electrical
shock by providing an escape wire for
the electric current, if short circuit
occurs. This product must be equipped
with a power cord or cable that pro-
vides a grounding wire.
Improperly grounded motors
are shock hazards. Make sure
all the equipment is properly
grounded.
WIRING
Local electrical wiring codes differ from
area to area. Source wiring and protec-
tor must be rated for at least the
amperage and voltage indicated on the
motor nameplate, and meet all electri-
cal codes for this minimum. Use a slow
blow fuse type T or a circuit breaker.
Motor protection should be used when
a motor built-in thermal overload pro-
tection is not provided. Some 3 phase
units require a magnetic starter
(See Figure 3).
Overheating, short
circuiting and fire
damage will result from inadequate
wiring.
Operation
1. Remove the breather and fill pump
with approximately 16 oz. of ISO
100 industrial grade air compressor
oil (Model 4ZF21, Mobil Rarus
2. Turn outlet valve to open air flow.
3. Run the unit for 30 minutes, under no
load, to break in pump parts. The
compressor is now ready for use.
NOTE: This model is equipped with a
pressure switch that automatically
turns the motor OFF when the outlet
pressure reaches 40 psiG. After air is
used and drops to 30 psiG the pressure
switch automatically turns the motor
back on.
Maintenance
FOR EFFICIENT OPERATION BEFORE
EACH USE:
1. Check air filter.
2. Check oil.
3. Pull ring on safety valve and allow
the ring to snap back to normal
position. This valve automatically
releases air if the line pressure
exceeds the preset maximum.
Disconnect power and release
all pressure from the system
before attempting to install, service,
relocate or perform any maintenance.
LINE
Line
L1
240V
L2
Presssure
PRESSURE
SWITCH
Switch
Ground
GROUND
Figure 3 - Single Phase and Three Phase Wiring Diagrams
3
4B242A and 4B243A
Figure 4
®
427).
ASME safety valve. This valve should be
checked occasionally. If air leaks after
the ring has been released, or the valve
is stuck and cannot be actuated by the
ring, the safety valve must be replaced.
4. Check drive belt tension
(See Drive Belt).
5. With motor unplugged, clean debris
from motor, flywheel, air lines and
pump cooling fins.
TANK
Never attempt to repair or
modify a tank! Welding,
drilling or any other modification will
weaken the tank resulting in damage
from rupture or explosion. Always
replace worn, cracked or damaged tanks.
The tank should be carefully inspected
at a minimum of once a year. Look for
cracks forming near the welds. If a crack
is detected, remove pressure from tank
immediately and replace.
FUSED BREAKER
Fused Breaker
OR DISCONNECT
Or Disconnect
MOTOR
Motor
M
PRESSURE
Pressure
SWITCH
Switch
T1
Do not attempt to
tamper with the
Drain liquid from
tank daily.
L1
L2
L3
COIL
X2
Thermal
OVER-
THERMAL
LOAD
UNITS (3)
Units (3)
T3
T2
Motor
MOTOR
®
E
N
G
L
I
S
H

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4b243a

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