Service manual
77
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.
PHD42C02E
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
20216301 REV. 2
R
S
C
FAN
COM
HERM
CAP
T1
T2
COMP
OD
FAN
CC
WARNING:DISCONNECT POWER BEFORE SERVICING.
USE COPPER CONDUCTORS ONLY
COMPRESSOR
1ø WIRING
O.D.
FAN
MOTOR
COM
208
230
LOAD
LINE
TRANSFORMER
CS
R
FIELD CONNECTION
208/230 VAC 1ø
L1
GND
L2
AIR
CIRCULATION
BLOWER
(ACB)
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
20
RD
10
O
OUT
DF
PS1
PS2
P
S
1
COMMON
Y
FAN
C
R
W
O
Y
2
1
A
B
B
A
R
G
G
CONTACTOR (CC)
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
C
C
D
T
R
S
DEFROST
CONTROL
A
B
B
A
T
E
S
T
6
0
9
0
3
0
Y
C
O
M
P
S
2
P
S
1
D
F
O
U
T
O
F
A
N
Y
O
W
R
C
G
COM
FAN HERM
CAPACITOR
YL
12
BK-27
BR-11
GND
L2T2
L1
T1
DEFROST
CONTROL
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
W1
G
E
C
R
W
O
Y
G
R
F
U
S
E
24V
COMMON
CAP
L2
START
CAP
521
START
RELAY
VT-7
RD-6
GY-9
GY-9
RD-27
230/208
VT-14
GY-9
GY-55
VT
62
VT-20
RD-10
T
O
H
E
A
T
E
R
K
I
T
DIAGNOSTICS
LED
W2
USE COPPER
CONDUCTORS
ONLY-
75°C MIN
HEATER
KIT
YL/BK
LOW PRESSURE
SWITCH (LPS)
RD-27
RD
31
L
P
S
VT
16
VT
16
VT
62
RD
33
BK
24
BK
13
BK
19
BK
20
C
2
C
1
R
3
O
ADJUST
NORM
( )+
(-)
TEST
HEAT
A
B
C
D
COOL
A
B
C
D
CUT TO
ENABLE
DEHUMIDIFY
R
2
E
M
/
W
2
W
1
Y
/
Y
2
G
VT-14
RD-31
BLOWER
INTERFACE
C
2
C
1
R
3
O
A
D
J
U
S
T
N
O
R
M
(
)+
(
-
)
T
E
S
T
H
E
A
T
A
B
C
D
C
O
O
L
A
B
C
D
C
U
T
T
O
E
N
A
B
L
E
D
E
H
U
M
I
D
I
F
Y
R
2
E
M
/
W
2
W
1
Y
/
Y
2
G
BLOWER
IN TERFACE
AIR
CIRCULATION
BLOWER
(ACB)
(COOL)
A
B
C
D
800
1000
1200
1400
(HEAT)
A
B
C
D
5KW
10KW
15KW
20KW
CFM
ADJUST
NORM
(+)
(-)
TEST
KW
DETAIL 2
RD
BK
GN
321
65
987
4
VIEW A-A
ALTERNATE UNIT POWER REFRIGERANT
LEADS MAY BE USED WITH ELECTRIC
HEATER ACCESSORIES. SEE HEATER
ACCESSORY INSTALLATION INSTRUCTIONS.
A
A
SEE DETAIL 2