York YHKMXH009BARX-FX, Service Manual, Page: 151 / 269

YHUJYH048BARXA-X
LE
D
1
LE
D
2
CN19
CON1
W U
CO
MP
RE
SS
OR
V
M
2
20
V
A
C T
6.3A
FUS
E
1
2.USER SHOULD NOT TO CHANGE THE DIP SWITCH SW1,SW6,SW7 WITHOUT GUIDENCE. 1.DESHAED FRAMES ARE OPTIONAL, AND IN SOME MODELS ARE NOT AVAILABLE.
NOTE1:
CN8
P
M
V
P
TC
SIG
CON2
N
S
W
5
S
W
4
S
W
2
S
W
3
FA
B
: B
LA
C
K
R
:
R
ED
R:RED
W
:
W
H
IT
E
Y
/G
:
Y
EL
LO
W
/G
R
EEN
CON3
L
CO
NTR
OL
B
O
A
R
D
U
V
W
AC_L AC_N
CN607
BL
:
BL
U
E
CN11
TO I
S
P
M
B
R
W
B
CN1
L
N
E
L’
N’
HP
LP
CN2
CN9
CN10
CN3
CN4
CN6
CN5
CN7
TC
TS
TD
TE
TA
SERIAL
CN12
DC FAN MOT OR
M
CN13
DC FAN MOT OR
M
S
W
6
ON
4
3
2
1
FAN
UP
DOWN
COM
ALARM
R W
0150510493Y
CIRCUIT DIAGRAM OF OUTDOOR UNIT
L
1
2
POWER SUPPL
Y
TO INDOOR UNIT
Y/G
Y/G
FIL
TER
MODULE
3
ON
SW1-1
SW1-2
48000 BTU 60000 BTU
ON
SW1-1
SW1-2
ON
SW1-4
DC FAN MOTOR
AC FAN MOTOR
ON
SW1-4
TC: MIDDLE PIPE
TEMPERA
TURE SENSOR
TS:
CO
M
PRE
SS
OR INHALE SENSOR
TE: DEFROST
TEMPREA
TURE SENSOR
TA: AMBIENT
TEMPERA
TURE
SENSOR
TD:
CO
M
PRE
SS
OR DISCHARGE
TEMPERA
TURE
SENSOR
NOTE2:
B
M
C
R
AN
KC
ASE
H
EA
TER
4-
W
AY
VAL
VE
DOWN A
C
FA
N
M
O
TO
R
CN20
N
L
M
UNLOAD VALVE
CN16
H
CN15
CN17
ca
pa
ci
to
r
M
UP A
C
FA
N
M
O
TO
R
N
L
M
H
CN14
ca
pa
ci
to
r
SPRAY VALVE
CN18
Y/G
Y/G
ON
S
W
1
1
2
3
4
5
6
7
8
DC-
L1
L2
DC+
DC-
DC+
CAP
ACITY
REACTOR
S
W
7
ON
4
3
2
1
W
N
SW7
NEW PROTOCOL OLD PROTOCOL
SW7
+
-
W
W
B
B
L
N
1
2
3
4
W
B
Y
Y
B
L
B
L
B
5
6
B
PTC
B
Y
Y
W
W
RALA
Y
Y/G
Y
:
Y
EL
LO
W
B
W
149