WIRING CODE FACTORY WIRING
HIGH VOLTAGE
LOW VOLTAGE
HIGH VOLTAGE
FIELD
OPTIONAL HIGH
VOLTAGE
OPTIONAL LOW
VOLTAGE
COLOR CODE
BK --------------- BLACK
BL --------------- BLUE
BL/PK ---------- BLUE/PINK STRIPE
BR --------------- BROWN
OR --------------- ORANGE
PU --------------- PURPLE
RD --------------- RED
WH -------------- WHITE
YL --------------- YELLOW
YL/PK ---------- YELLOW/PINK STRIPE
1 3
4
6
E11
E16
PU
RD (LOW)
BR
RELAY
RELAY
RELAY
HERM
COM
START
RUN
230 VAC
SUPPLY
L1
L2
E13
L2 OUT
L2
L1
E10
R
C
START
E5
E8
CAP COM
E17
START
RLY
BK (HIGH)
UC BOARD
LPS
FUSE
O
L
R
C
W1
Y1
E2
Y2
FAN
RUN
RELAY
RELAY
1
2
1
2
R
C
E25
E29
E28
E26
E24
E23
E22
E14
HIGH
LPCO HPCO
E47
E1
OAT
OCT
OAS
YL
BK
RD
RD
YL
GND
LOW VOLTAGE
BARRIER
BL/PK
BK
YL/PK
YL/PK
RD
BK
BK
BK
BL/PK
IO
AUX
MAIN
C
R
S
AUX
MAIN
COMP
CS
Y2
C
BK
YL
RD
CONTROL BOX
O
L
Y2
Y1
W1
C
O
L (OPTIONAL)
Y2
Y1
W1
C
LEGACY INDOOR T-STAT
C
R
2
1
C
R
2
1
R
R
C
R
INDOOR POWER SUPPLY 24 VAC
COMMUNICATING INDOOR T-STAT
INDOOR POWER SUPPLY 24 VAC
TO INDOOR COMMUNICATING PCB
0140R00138-F
THIS WIRING SCHEMATIC SHOWS THE LEGACY WIRING FROM
THE FACTORY. THE WIRES GO TO INDOOR T-STAT AS SHOWN
IN "LEGACY INDOOR T-STAT". TO WIRE THE SYSTEM IN
COMMUNICATING MODE, THE INSTALLER HAS TO WORK
THE WIRING AS SHOWN IN "COMMUNICATING INDOOR T-STAT".
REFER TO THE IO MANUAL LOCATED IN COMMUNICATING
T-STAT KIT FOR MORE DETAILS.
FROM
OUTDOOR
UNIT
FROM
OUTDOOR
UNIT
RES
2 5
1
SC
OPTIONAL HARD START
BK
RD
SR
CM
COMPONENT CODE
C --------------- CONTACTOR
CM ------------ CONDENSER FAN MOTOR
COMP -------- COMPRESSOR
CS ------------- COMPRESSOR SOLENOID
HPS ----------- HIGH PRESSURE SWITCH
IO -------------- INTERNAL OVERLOAD
LPS ---------- LOW PRESSURE SWITCH
OAS ----------- OUTDOOR AIR SENSOR
RCCF --------- RUN CAPACITOR FOR
COMPRESSOR & FAN
SC ------------- START CAPACITOR FOR
COMPRESSOR (OPTIONAL)
SR ------------- START RELAY FOR
COMPRESSOR (OPTIONAL)
CH ------------ CRANKCASE HEATER
(OPTIONAL)
CHS ---------- CRANKCASE HEATER
SWITCH (OPTIONAL)
CONTROLS SHOWN WITH
THERMOSTAT IN 'OFF' POSITION.
YL
PU
BL
RD
NOTES:
1. IF DT IS NOT PRESENT, HPS BL/PK
WIRE GOES DIRECTLY TO TERMINAL
E29.
2. USE COPPER SUPPLY WIRES ONLY.
3. USE 40VA TRANSFORMER MINIMUM.
4. CRANKCASE HEATER FACTORY
INSTALLED OPTION.
H
F
C
RCCF
PU
BR
RD
YL
DT
SEE NOTE 1
HPS
L1
L2
K2
C
R
S
COMP
R
S
HERM
C
PSC FAN MOTOR
C
UC CONTROL
HERM
CAP
COM
C
HIGH
LOW
K4
K3
RUN CAPACITOR
FAN
CAP
1
2
5
SC
SR
OPTIONAL HARD START
O
L
R
C
W1
Y1
E2
Y2
1
2
LPS
E22
E23
E24
E26
E47
E1
HPS
OAS
DT
E28
HIGH VOLTAGE AREA
LOW VOLTAGE AREA
E29
NOTE 2
CH
E21
E14
CS
NOTE 2
CHS
GR/YL
CH
BK
BK
NOTE 4
RD
NOTE 4
RD
K6
CHS
CH
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