19
X1
X3
X2
X4
H1
H4
H2
H3
BLK
BLK
CCH
D
48HC500012
T1
T3
T2
BLK
YEL
BLU
COMP
BLK
YEL
BLK
BLK
BLK
YEL
YEL
11 21
13 23
C
230 200 C
BLK
YEL
TO INDICATE COMMON POTENTIAL
ONLY: NOT TO REPRESENT WIRING
MARKED WIRE
LEGEND
X
TERMINAL (MARKED)
TERMINAL (UNMARKED)
X
X
TERMINAL BLOCK
SPLICE
SPLICE (MARKED)
FACTORY WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
ACCESSORY OR OPTIONAL WIRING
NOTES
1. IF ANY OF THE ORIGINAL WIRE FURNISHED
MUST BE REPLACED. IT MUST BE REPLACED
WITH TYPE 90 C WIRE OR ITS EQUIVALENT.
2. COMPRESSOR AND FAN MOTORS ARE THERMALLY
PROTECTED. THREE PHASE MOTORS ARE
PROTECTED AGAINST PRIMARY SINGLE PHASING
CONDITIONS.
3. 208/230V UNIT TRAN IS WIRED FOR 230V UNIT.
IF UNIT IS TO BE RUN WITH 208V POWER SUPPLY
DISCONNECT BLK WIRE FROM 230V TAP AND
CONNECT TO 200V TAP.
4. USE COPPER, COPPER CLAD ALUMINUM OR
ALUMINUM CONDUCTORS.
5. USE COPPER CONDUCTOR ONLY.
6. DO NOT DISCONNECT POWER PLUG OR SIGNAL
WIRE WHILE UNDER LOAD.
7. VFD USER KEYPAD CONNECTED TO THE DRIVE
FOR SHIPPING PURPOSES.
8. THESE FUSES ARE MANUFACTURED BY COOPER BUSSMAN,
P/N - FNQ-R-2.
CIRCUIT BOARD TRACE
460
TRAN
24V
BRN
RED
24V
GRN/YEL
TO 24V
SCHEMATIC
48LC POWER 208/230V,460V 3 PH 3-5 TON
IFTB
IDM
CAP 3
QT
BLK 460V
VIO 208/230V
YEL
YEL
BRN
CM
IGC
SEE CONTROL
SCHEMATIC
BLK
L1
BLK
BM
BRN
YEL
L1
L3
L2
PMR
(ACCY)
BLK
YEL
BLU
BLU
YEL
C
L
G
N
YEL
GRN/YEL
BLK
BRN
DIRECT
DRIVE
(NOTE 6)
5
4
3
2
1
IFM
BLK
42
8
6
CCHR 460V ONLY
BLK
BLK
CCH
CCHTS 208/230V ONLY
BLK
BLK
BLK
BLK
WHT
BLK
FIOP
NON-POWERED
CONVENIENCE
OUTLET
115V
FIELD
SUPPLY
GR
SEE NOTE#5
MAXIMUM WIRE
SIZE 4 AWG
BLK
YEL
BLU
EQUIP
GR
FIELD
POWER
SUPPLY
T1
T2
T3
L1
L2
L3
DISCONNECT
EQUIP GR
HACR
FIOP
1/0 MAX
WIRE SIZE
SEE NOTE 5
FIOP
1/0 MAX
WIRE SIZE
SEE NOTE 4
L1,L2,L3 WIRES
ARE FACTORY
WIRES WITH
HACR/DISCONNECT
FIOPS
RLV
RMOC
RS
SAT
SEN
SET
SCT
SF
SPRH
SPT
SPTO
SSP
SW
TB
TRAN
UPC
VFD
___.A
___.B
ACCY
ALM
C
CAP
CB
CCH
CCN
CIB
CLV
COFS
COM
COMP
CTB
DDC
EC
ECB
ENTH
ERV
FB
FIOP
FS
FDWN
FPT
FU
GR (GND)
GV
HPS
HS
HUM
I
IAQ
IDM
IDR
IFC
IFM
IFTB
IGC
LAR
LAS
LDR
LEN
LPWR
LS
LSM
LTLO
MARQ
MBB
MOV
OAT
OFC
OFM
OFR
OFTB
OL
PER
PL
PMR
QT
R
RAT
RDV
RH
THERMOSTAT/IGC MARKINGS
BM
C
C-2
CM
CS
G
IF0
L1
R
R-2
RT
SS
W
W1
W2
X
Y1
Y2
GRN/YEL
WHT
LO
LOW VOLTAGE
YEL
HI
U2W1
V2V1
3
2
1
BLU
YEL
BLK
IFM
3 PH
W2U1
VFD
PE
GRN/YEL
GRN/YEL
BLU
YEL
BLK
BLU
YEL
BLK
GRN/YEL
GRN/YEL
BLU
YEL
BLK
BLK
(NOTE 7)
- OR -
BLK
BLU
GRN/YEL
O
F
M
C
BLU
BRN
YEL
WHT
LOW
VOLTAGE
BLK
OFM
BLU
FU
FU
2 AMP
2 AMP
SEE NOTE #8
TRAN
OFM
FOR
460V
ONLY
BLU
BLK
BLU
BLK
BLK
BLU
BLU
BLK
BLK
BLU
FOR 230V
ONLY
BLK
BLK
TRAN
CTB
C
X
THERMOSTAT
C
G
W2
W1
Y2
Y1
R
COMPONENT ARRANGEMENT
COFS
(FIOP)
VFD
FAN
BD
HACR/DISCONNECT
OPTION
IFTB
7220
-OR-
RTU-OPEN
CCHR
460V &
575V
ONLY
PHASE
LOSS
IFM
TDR
TRAN 2
REHEAT BOARD
OFR1
OFR2
DEHMIDIFICATION FIOP
DEHMIDIFICATION FIOP
230 200 C
BLK
YEL
460
TRAN 2
24V
BRN
RED 24V
GRN/YEL
TO 24V
SCHEMATIC
575
DEHUMIDIFICATION FIOP
MOV1
MOV3
MOV2
CIRCUIT A
CIRCUIT B
ACCESSORY
ALARM RELAY
CONTACTOR,COMPRESSOR
CAPACITOR
CIRCUIT BREAKER
CRANKCASE HEATER
CARRIER COMFORT NETWORK
COMMUNICATION INTERFACE BOARD
COOLING LIQUID VALVE
CONDENSATE OVERFLOW SWITCH
SIGNAL COMMON
COMPRESSOR MOTOR
CENTRAL TERMINAL BOARD
DIRECT DIGITAL CONTROL
ENTHALPY CONTROL
ECONOMIZER CONTROL BOARD
ENTHALPY
ENERGY RECOVERY VENTILATOR
FUSE BLOCK
FACTORY INSTALLED OPTION
FLAME SENSOR
FIRE SHUT DOWN
FREEZE PROTECTION THERMOSTAT
FUSE
GROUND
GAS VALVE
HIGH PRESSURE SWITCH
HALL EFFECT SENSOR
HUMIDISTAT
IGNITOR
INDOOR AIR QUALITY SENSORS
INDUCED DRAFT MOTOR
INDUCED DRAFT RELAY (575V)
INDOOR FAN CONTACTOR
INDOOR FAN MOTOR
INDOOR FAN TERMINAL BLOCK
INTEGRATED GAS CONTROL
LOW AMBIENT RELAY
LOW AMBIENT SWITCH
COMPRESSOR LOADER(INTERNAL)
LOCAL EQUIPMENT NETWORK
CURRENT LOOP POWER
LIMIT SWITCH
LIMIT SWITCH (MANUAL RESET)
LOW TEMP LOCKOUT
SCROLLING MARQUEE DISPLAY
MAIN BASE BOARD
METAL OXIDE VARISTOR
OUTDOOR AIR TEMP. SEN
OUTDOOR FAN CONTACTOR
OUTDOOR FAN MOTOR
OUTDOOR FAN RELAY
OUTDOOR FAN TERMINAL BLOCK
OVERLOAD
POWER EXHAUST RELAY
PLUG ASSEMBLY
PHASE MONITOR RELAY
QUADRUPLE TERMINAL
RELAY
RETURN AIR TEMP. SEN
REHEAT DISCHARGE VALVE
RELATIVE HUMIDITY
REHEAT LIQUID VALVE
REMOTE OCCUPANCY
ROLLOUT SWT
SUPPLY AIR TEMP SEMSOR
SENSOR
SET POINT OFFSET
SATURATED CONDENSING TEMP
SIGNAL FILTER
SPACE RELATIVE HUMIDITY
SPACE TEMPERATURE SENSOR
SPACE TEMPERATURE OFFSET
SATURATED SUCTION PRESSURE
SWITCH
TERMINAL BLOCK
TRANSFORMER
UNIVERSAL PROTOCOL CONVERTER
VARIABLE FREQUENCY DRIVE
BLOWER
COMMON
COMMON (TRAN2)
COMBUSTION MOTOR
CENTRIFUGAL SWITCH
FAN
INDOOR FAN ON
LINE 1
THERMOSTAT POWER
THERMOSTAT POWER (TRAN2)
POWER SUPPLY
SPEED SENSOR
THERMOSTAT HEAT CALL
1st STAGE OF HEATING
2nd STAGE OF HEATING
ALARM OUTPUT
1st STAGE OF COOLING
2nd STAGE OF COOLING
C13387
Fig. 26 -- 48LC Power Wiring Diagram, 208/230V, 460V 3 Phase
48HC48LC
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