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20
R
BK
7
7
6
6
11 11
10 10
8
8
2
2
3
3
4
4
1
1
5
5
9
9
12 12
ECONOMIZER PLUG
BL
Y
0
G
ENERGIZED
T
G
DE-ENERGIZED
0
W
45
BR
T
W
T+45
BR
ENERGIZED
DE-ENERGIZED
T+60
HEATING FAN LOGIC
COOLING FAN LOGIC
COLOR CODE
BK BLACK
BL BLUE
BR BROWN
GY GRAY
G GREEN
O ORANGE
P PINK
R RED
V VIOLET
W WHITE
Y YELLOW
FIELD
SUPPLY
C F
SCHEMATIC
460-3-60
1
1
SEE NOTE 5
LEGEND
FIELD SPLICE
TERMINAL (MARKED)
TERMINAL (UNMARKED)
SPLICE (IF USED)
SPLICE (MARKED)
FACTORY WIRING
FIELD CONTROL WIRING
FIELD POWER WIRING
ACCESSORY OR OPTIONAL
WIRING
TO INDICATE COMMON
POTENTIAL ONLY:
NOT TO REPRESENT WIRING
BLR BLOWER RELAY
C CONTACTOR
COMP COMPRESSOR MOTOR
CR COMBUSTION RELAY
EQUIP EQUIPMENT
FS FLAME SENSOR
FU FUSE
GND GROUND
GVR GAS VALVE RELAY
HV TRAN HIGH VOLTAGE TRANSFORMER
I IGNITOR
IGC INTERGRATED GAS UNIT
CONTROLLER
IDM INDUCED DRAFT MOTOR
IFM INDOOR FAN MOTOR
LS1 PRIMARY LIMIT SWITCH
MGV MAIN GAS VALVE
OFM OUTDOOR FAN MOTOR
QT QUADRUPLE TERMINAL
RS ROLLOUT SWITCH
TRAN TRANSFORMER
EQUIP_GND
IDM
V
Y
BR
G/Y
CAP 2
QT
COMP
T1
T2
T3
Y
BR
FS
LS1
1
3
RS
1
3
LS2
1
3
R
PRIMARY
460V
TRAN
SECONDARY
24V
24
24
460
460
MGV
M
C
OFM
CAP1
Y
BR
C
11
21
13
23
BK
Y
COMPRESSOR PLUG
Y
BK
V
BK
Y
BL
BL
GY
BR
G/Y
BK
BK
CCH
G
IF USED
NOTES:
1. IF ANY OF THE ORIGINAL WIRES FURNISHED ARE
REPLACED, THEY MUST BE REPLACED WITH TYPE
90 DEG. C WIRE OR ITS EQUIVALENT.
2. SEE PRICE PAGES FOR THERMOSTAT AND SUBBASES.
3. USE 75 DEG. COPPER CONDUCTORS FOR FIELD
INSTALLATION.
4. SEE INSTALLATION INSTRUCTIONS
FOR PROPER HEATING AND COOLING CONNECTIONS
FOR YOUR UNIT. INDOOR FAN MOTOR PLUGS
- "DO NOT DISCONNECT UNDER LOAD"
5. LS2 USED ON SMALL CHASSIS ONLY.
6. INDUCER CAPACITOR AND WIRING ON CERTAIN MODELS ONLY.
IF CAP2 IS PRESENT, YELLOW WIRES FROM CONTACTOR AND IDM
CONNECT ON SAME SIDE OF CAP2.
7. THIS FUSE IS MANUFACTURED BY LITTELFUSE, P/N 257003.
8. THIS FUSE IS MANUFACTURED BY LITTELFUSE, P/N 257005.
9. THESE FUSES ARE MANUFACTURED BY COOPER BUSSMAN,
P/N FNQ-R-5.
10. DEHUMIDIFICATION FEATURE CANNOT BE USED WHEN
ECONOMIZER IS INSTALLED.
L3
L1
BK
BK
Y
O
DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING
CONNECTION WIRING DIAGRAM
I
Y
CAP 1 CAPACITOR, COMP
CAP 2 CAPACITOR, INDUCER
PRS PRESSURE SWITCH
3
C
X
5
W
4
Y
R
24V
P2
1
2
GAS
HEAT
LOW
G
4
6
W
Y1/Y
R
C
3 2 1
P1
COM
C
C
FUSE
COM
R
3A
24VAC
IFB
R
W
R
BR
IFM
GND
L2
L1
COM
1 2
4
3 5
BR
GY
SEE
NOTE 6
GND
SEE NOTE 4
IFB INDOOR FAN BOARD
LGPS LOW GAS PRESSURE SWITCH
(WHEN USED)
BL
L2
L1
C
J2
W
IFC
G
R
RS
RS
LS
LS
CS
CS
GV
GV
C
IGC
CM
BM
FS
RT
V
V
C
C1
C2
SEE
NOTE 4
BL
P
R
O
BK
LS2 SECONDARY LIMIT SWITCH
T'STAT THERMOSTAT
BR
BK
BR
BR
5A FUSE
R
SEE
NOTE 7
SEE NOTE 9
SAT
BL
BL
ECON
BR
Y
GY
BK
R
BR
R
P
P
Y2
FU1 5 AMP
FU2 5 AMP
R
BK
4
1
2
3
230V
460V
C
C
AUTOTRANSFORMER
BK
R
SEE NOTE 9
BK
R
BK
BK
Y
Y
GY
BL
LPS
HPS
BK
BL
GROUNDED
THRU STANDOFF
PRS
O
Y
O
LGPS (WHEN USED)
DH DEHUMIDIFICATION SIGNAL
HIGH
Y2/DH
5
Y
R
G
W
Y1
R
G
W
T'STAT
BR
C
1
1
BL
DH
ECON ECONOMIZER
SEE
NOTE 10
A09265
Fig. 16 -- 460--3--60 Connection Wiring Diagram
577C
--
--
A
Summary of Contents for 577C--A
Page 4: ...4 A09477 Fig 3 577C A24 36 Unit Dimensions 577C A ...
Page 5: ...5 A09478 Fig 4 577C A42 60 Unit Dimensions 577C A ...
Page 16: ...16 A09282 Fig 14 208 230 1 60 Connection Wiring Diagram 577C A ...
Page 17: ...17 A09282 Fig 14 Cont 208 230 1 60 Ladder Wiring Diagram 577C A ...
Page 18: ...18 A09264 Fig 15 208 230 3 60 Connection Wiring Diagram 577C A ...
Page 19: ...19 A09264 Fig 15 Cont 208 230 3 60 Ladder Wiring Diagram 577C A ...
Page 25: ...25 Table 7 Cooling Charging Chart A09083 577C A ...