Carrier 19XL User Manual
Page 96
Fig.
51
—
T
ypical
W
ye-Delta
Unit
Mounted
Starter
W
iring
Schematic
LEGEND
1M,
2M
—
Main
Compressor
Contactors
CB
—
Circuit
Breaker
CR
—
Control
Relay
CT
—
Current
T
ransformer
DS
—
Disconnect
GF
—
Ground
Fault
GFR
—
Ground
Fault
Relay
H1,
H2
—
Power
T
ransformer
Input
T
erminal
HPS
—
High-Pressure
Switch
J—
Module
Connector
L1,
L2,
L3
—
3-Phase
Line
T
erminals
NC
—
Normally
Closed
OL
—
Overload
OS1,
OS2,
OS3
—
3-Phase
Current
Power
Source
to
Oil
Pump
PMR
—
Phase
Loss
Reversal
Relay
PMR
VR
—
Phase
Loss,
Phase
Reversal,
Overvoltage,
Undervoltage
Relay
POT
—
Potentiometer
PR
—
Pilot
Relay
S—
Compressor
Motor
Start
Contactor
SMM
—
Starter
Management
Module
ST
—
Shunt
T
rip
T—
Motor
T
erminal
TB
—
T
erminal
Board
TR
—
T
ransition
Resistor
TRFP
—
T
ransition
Resistor
Fault
Protector
X—
V
ariable
Number
X1,
X2
—
Power
T
ransformer
Output
T
erminal
Dry
Contact
96