74
WIRING DIAGRAMS
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
YL YELLOW
OR ORANGE
VT VIOLET
GN GREEN
BK BLACK
BR BROWN
WH WHITE
BU BLUE
GY GRAY
RD RED
COLOR CODE
LOW VOLTAGE
LOW VOLTAGE FIELD
HI VOLTAGE
HI VOLTAGE FIELD
20014001 REV. 3
R
S
C
FAN
COM
HERM
CAP
T1
T2
COMP
OD
FAN
CC
WARNING:DISCONNECT POWER BEFORE SERVICING.
COMPRESSOR
1ø WIRING
O.D.
FAN
MOTOR
COM
208
230
LOAD
LINE
TRANSFORMER
CS
R
FIELD CONNECTION
208/230 VAC 1ø
L18/23
GND/230
L2D/23
AIR CIRCULATION
BLOWER
(ACB)
CAPACITOR
(CAP)
L1
208/230 VAC 1ø
FOR PROPER OPERATION ON 208 VOLT THE
FOLLOWING CHANGE MUST BE MADE:
208 VOLT INSTALLATION
MOVE RD6 WIRE FROM TRANSFORMER
230 TERMINAL TO 208 TERMINAL.
VT-14
RD-24
BU-23
VT
20
RD
10
BR
BR
4
3
2
1
5
6
O
OUT
DF
PS1
PS2
P
S
1
COMMON
Y1 OUT
FAN
E
C
R
W
O
Y
2
1
A
B
A
R
G
G
CONTACTOR
1
2
3
5
4
REVERSING
SOLENOID
(RS)
DEFROST
THERMOSTAT
(DT)
PIN 1
PIN 2
PIN 3
PIN 4
PIN 5
PIN 6
PIN 7
PIN 8
PIN 9
YL-5
GY-70
TO
HEATER
KIT
SEE
DETAIL 1
TEST
60
DETAIL 1
HEATCRAFT
ADJUSTABLE DEFROST INTERVAL
(FACTORY SETTING AS SHOWN)
30 90
BU-34
GY-70
RD-13
BR-21
OR-49
YL-27
BU-34
RD-13
BR-21
OR-49
YL-27
VT-18
BK-26
C
C
D
T
R
S
DEFROST
CONTROL
A
B
B
A
T
E
S
T
6
0
9
0
3
0
Y
O
U
T
C
O
M
P
S
2
P
S
1
D
F
O
U
T
O
F
A
N
Y
O
W
R
C
E
G
COM
FAN HERM
CAPACITOR
YL
12
VT-16
BK-27
BR-11
GND
L2
T2
L1T1
DEFROST
CONTROL
ELECTRIC
HEAT
RELAY
COOLING
SWITCH
RELAY
DIAGNOSTICS LED 1 LED 2
NORMAL
OPERATION
SHORT
CYCLE
OPEN
PRESSURE
SWITCH
LOCKOUT
BOARD
FAILURE
BOTH
FLASHING
ALTERNATE
FLASHING
OFF ON
ON OFF
ON ON
FUSE
RD-11
W1
G
ECRWOY
ELECTRIC
HEAT RELAY
G
R
F
U
S
E
COOLING
SPEED
24V
COMMON
CAP
L2
START
CAP
52
1
START
RELAY
HI
MED HI
LO
CAP
2
4
1
3
COOLING
TAP
5
HEAT
TAP
ACB
M LO
230 VOLT
COOLING
SWITCH
RELAY
VT-7
RD-6
GY-9
GY-9
RD-33
RD-2
VT-62
RD-31
RD-27
OR
28
GY
55
BU
1
GY-8
BK-19
BK-20
BK-24
BK-13
230/208
VT-14
GY-9
GY-8
BU-1
RD-27
VT
62
RD
31
VT-20
RD-10
VT-62
BU
23
RD
31
VT-16
BK-26
VT-18
RD-24
BU-23
TO HEATER
DIAGNOSTICS
LED
RD
BK
GN
UNIT POWER WITH
ELECTRIC HEATER ACCESSORIES
ELECTRIC
HEAT
RELAY
MODEL
NUMBER
COOLING
BLOWER
SPEED TAP
ELECTRIC HEAT BLOWER TAP
PHCB05C1 PHCB10C1 PHCB15C1 PHCB20C1
PHB24C02D
PHB30C02D
PHB36CO2D
LOW
MED-LOW
MED-HIGH
LOW
LOW
LOW
MED-LOW
MED-LOW
MED-LOW
MED-HIGH
MED-HIGH
MED-HIGH
MED-HIGH
M
E
D-HIGH
MED-HIGH
W2
HEAT
KIT
PHB24, 30, 36
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