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Operating Instructions
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8
Installation (Continued)
L1
Pressure Switch
Thermal
Unit (1)
L2
Circuit Breaker or
Fused Disconnect
Motor
Over
Load
Coil
T2
T1
X2
Figure 6 - Single Phase Wiring Diagram
L1
L2
Pressure
Switch
Thermal
Units (3)
L3
T2
Circuit Breaker or
Fused Disconnect
X2
Motor
Over
Load
Coil
T3
T1
Figure 7 - Three Phase Wiring Diagram
T1
Load
Over
X2
Circuit Breaker or Fused Disconnect
T2
Switch
Pressure
L2
L1
GROUND
SCREW
*CUSTOMER INSTALLED POWER SUPPLY
Motor
Units(2)
Thermal
Coil
120V
LOW-OIL
SWITCH
*MAIN DISCONNECT
BRANCH CIRCUIT
PROTECTION TO BE
INSTALLED BY A
QUALIFIED ELECTRICIAN
IN ACCORDANCE
WITH NATIONAL AND
LOCAL CODES.
CUSTOMER
INSTALLED
CONTROL
POWER
SUPPLY
120V
Figure 8 - Single phase wiring diagram - Automotive Series
(Fully Packaged) Models
T1
Load
Over
X2
Circuit Breaker or Fused Disconnect
T2
Switch
Pressure
L2
L1
GROUND
SCREW
*CUSTOMER INSTALLED POWER SUPPLY
Motor
Units(3)
Thermal
Coil
120V
LOW-OIL
SWITCH
CUSTOMER
INSTALLED
CONTROL
POWER
SUPPLY
120V
T3
L3
*MAIN DISCONNECT
BRANCH CIRCUIT
PROTECTION TO BE
INSTALLED BY A
QUALIFIED ELECTRICIAN
IN ACCORDANCE
WITH NATIONAL AND
LOCAL CODES.
Figure 9 - Three phase wiring diagram - Automotive Series
(Fully Packaged) Models