Use and Care Manual

8
EMAX Electric Operated, Piston Compressors
Three Phase Motors (See figure 7)
1. Connect first power lead to 1L1.
2. Connect second power lead to 3L2.
3. Connect third power lead to 5L3.
4. Connect ground wire to existing motor ground
wire.
5. Check for proper motor rotation. When facing
motor shaft, pulley should turn counterclock-
wise. If rotation is reversed, turn off power
then switch two power leads.
Ensure wiring is installed
according to voltage required for
proper motor operation (220V or 460V).
Operation
Safety Rules
1. Make sure all operators receive product train-
ing, read and understand all instructions.
Keep all flammable, combustible,
poisonous and noxious materials
away from operating area. Make
sure there are no oily rags, trash,
leaves, litter or other combustible
materials in operating area. Keep
suitable, fully charged fire extinguishers nearby
when servicing and operating the compressor.
2. NEVER allow modifications to compressor
structure or controls.
3. Keep all ignition sources away from exposed
electrical parts.
4. Keep all persons clear of compressor during
start-up and operation.
5. NEVER operate the compressor with the fan,
coupling or other guards removed.
6. DO NOT engage in horseplay with air hoses as
death or serious injury may result.
7. Make sure to provide adequate ventilation
and use proper lubricant while operating the
compressor. If lubricant or other combustible
substances are spilled, clean up immediately.
8. When checking or adding lubricant or when re-
filling air line anti-icer systems with antifreeze
compound, shut off compressor and allow it to
cool. Keep sparks, flames and other ignition
sources away and DO NOT permit smoking in the
vicinity.
9. Stop compressor and disconnect power if a
hazardous condition arises.
10. Wear snug fitting clothing and confine long hair
when around compressor. Keep all body parts
and clothing away from couplings, flywheel and
other moving parts of the equipment.
Figure 6: Single Phase Wiring Diagram
with magnetic starter
Figure 7: Three Phase Wiring Diagram
with magnetic starter
Breaker
Power Supply
220 V
Pressure
Switch
Motor
Thermal
Overload
Mag
Starter
Power
1
Power
2
A1
T1 T2 T3
T1 T2 T3
A2
NC
95
NC
96
A2
1L1 3L2 5L3
110V Power
Wires
Jumper wire
from 3L2 power
to NC96
Jumper wire
from 1L1 to
top of
selector switch
Jumper wire
from bottom of
selector switch
to pressure switch
Jumper wire
from NC95 to A2
Common
ground wire
Large jumper wire
5L3 to T2 on overload
Wire connection
from coil to
pressure switch
ON-OFF
Selector Switch
(if equipped)
Breaker
Power Supply
220 V
Pressure
Switch
Motor
Thermal
Overload
Mag
Starter
Power
1
Power
2
A1
T1 T2 T3
T1 T2 T3
A2
NC
95
NC
96
A2
1L1 3L2 5L3
Power
3
110V Power
Wires
Jumper wire
from 3L2 power
to NC96
Jumper wire
from 1L1 to
top of
selector switch
Jumper wire
from bottom of
selector switch
to pressure switch
Jumper wire
from NC95 to A2
Common
ground wire
Wire connection
from coil to
pressure switch
ON-OFF
Selector Switch
(if equipped)