Carrier Omnizone 50XCR06 Installation, Start-Up And Service Instructions Manual page 23

DISC1
L1
208/230V
3 L2
60 Hz
L3
GND
a50-8516
Fig. 15 — Typical Wiring Schematic (50XCR12-24, 208/230-3-60 Units Shown)
C — Compressor Contactor
CH — Crankcase Heater
CLO — Compressor Lockout
COMP — Compressor
CR — Control Relay
DISC — Disconnect
FR — Fan Relay
FRZ — Freeze Protection
GND — Ground
HPS — High Pressure Switch
HR — Heat Relay
IFC — Indoor-Fan Contactor
IFM — Indoor-Fan Motor
IFR — Indoor-Fan Relay
LPS — Low Pressure Switch
LLT — Liquid Line Temperature
OFC — Outdoor-Fan Contactor
TB1
100/BLK
101/BLK
102/BLK
GND
LEGEND AND NOTES FOR FIG. 15-17
LEGEND
OFM — Outdoor-Fan Motor
OFR — Outdoor-Fan Relay
SAT — Supply Air Thermistor
SV — Solenoid Valve
TB — Terminal Block
TRAN — Transformer
VFD — Variable Frequency Drive
Terminal Block Connection
Marked Terminal
Unmarked Terminal
Splice
Factory Wiring
Field Power Wiring
IFC/IFR
103/BLK L1 T1
104/YEL L2 T2
105/BLU L3 T3
C1
118/BLK L1 T1
119/YEL L2 T2
120/BLU L3 T3
125/BLK
126/BLK
C2
127/BLK L1 T1
128/YEL L2 T2
129/BLU L3 T3
134/BLK
135/BLK
TRAN1
150/BLK 500/BRN
240V
208V
COM
151/YEL 501/RED
TRAN2
152/BLK FU1 154/BLK
H3
240V
UNUSED TAPS
H2
208V
NOT SHOWN
COM
153/YEL FU2 155/YEL
H1
FUSE
FU1-2
FU3
NOTES:
1. Fan motors are inherently thermally protected.
2. Three-phase motors are protected under primary
single phase conditions.
3. Use conductors suitable for at least 194°F (90°C)
when replacing factory wiring.
4. Use copper conductors only.
5. Wiring for field power supply must be rated at 165°F
(75°C) minimum.
23
IFM
106/BLK 1
107/YEL 2 109/GRN
108/BLU 3
CLO1-Loop
COMP1
121/BLK 1
122/YEL 2 124/GRN
123/BLU 3
CH1
CLO2-Loop
COMP2
130/BLK 1
131/YEL 2 133/GRN
132/BLU 3
CH2
TB3
Continued
Continued
on Low
580
on Low
X2
BRN
Voltage
Voltage
Diagram
Diagram
Page 30
581 561
FU3
X1
ORN RED
A V Class
1 600 CC
5 600 CC