Direction Of Rotation - maxus tools Cast Iron Serie Instrucciones De Operación

Air Compressors
Installation
(Con't)
Recommended wire sizes may be larger
than the minimum set up by local ordi-
nances. If so, the larger size wire should
be used to prevent excessive line voltage
drop. The additional wire cost is very
small compared with the cost of repair-
ing or replacing a motor electrically
"starved" by the use of supply wires
which are too small.
GROUNDING
DANGER
!
Improperly grounded
electrical components
are shock hazards.
Make sure all the com-
ponents are properly grounded to pre-
vent death or serious injury.
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 installed
and operated with a power cord or
cable that has a grounding wire.
MOTOR HOOKUP AND STARTER
INSTALLATION
Branch circuit protection must be provid-
ed as specified in the United States
National Electrical Code, Chapter 2,
"Wiring Design and Protection." Article
210, using the applicable article "For
Motors and Motor Controllers," (Article
430, Table 430-1 52).
IMPORTANT: Overload protection is
required for all motors. Certain motors
Line
Ground
L3 (for 3 phase wiring only)
L2
L1
Single Phase/
Three Phase
Motor
Wiring Diagram
Figure 3 - For Motor Frame Sizes R56HZ,
Y56Y or L143T. Refer to Motor Nameplate
Discharge
Tube
Check Valve
Tank
Pressure
Gauge
Isolation Pad
(available separately)
Figure 2 - Horizontal Unit Identification
have this protection built-in. To deter-
mine if a motor has built-in overload
protection, refer to the frame size on
the motor nameplate.
Motors with frame size R56HZ, Y56Y or
L143T include built-in overload protec-
tion. No additional protection is
required. Use Figure 3 wiring diagram.
Motors with frame sizes 184T, 215T,
254T or 284T DO NOT have built-in over-
load protection. A magnetic starter is
required. Use Figure 4 wiring diagram.
To change to the alternate voltage
on three phase motors with 230/460
ratings:
1. Rewire motor per data plate on
motor or instruction sheet.
2. Check electric rating of magnetic
starter and replace thermal overload
Circuit Breaker or
Fused Disconnect
L1
X2
Pressure Switch
Thermal
Units (3)
T1
Motor
Single Phase
Wiring Diagram
Figure 4 - For Motor Frame Sizes 184T, 215T, 254T or 284T. Refer to
Motor Nameplate
4
Pump
Safety Valve Access
Motor
Drain cock
elements or magnetic starter as
required. The voltage and amperage
ratings are listed on the motor
nameplate.

DIRECTION OF ROTATION

NOTE: Improper rotation will result in
reduced unit life.
The direction of rotation must be coun-
terclockwise (as shown by the arrow on
the flywheel) while facing the flywheel
side of the pump. The motor nameplate
will show wiring information for coun-
terclockwise rotation.
The proper direction is very important.
The direction of rotation of 3 phase
motors can be reversed by interchang-
ing any two motor-line leads. For single
phase motors, refer to the motor
nameplate.
Circuit Breaker or
Fused Disconnect
L2
Over
Load
Coil
Pressure
Switch
T2
Three Phase
Wiring Diagram
Factory Mounted
Magnetic Starter
(Not on
all units)
Pressure Switch
Tank Shut-off
Valve
(available separately)
Discharge Port
L1
L2
L3
Coil
X2
Over
Thermal
Load
Units (3)
T2 T3
T1
Motor