York YKCA-YKHA 18 Service Manual page 31

YKHA 48
Indoor unit:
Outdoor unit:
2 2 07 5 7 9 02 4
H- P RO K1
MAI N CONTROL BOARD
CN2 01
B L A C K ( HI )
RED( LOW)
XT5
R ED
BLACK
S.V.
BLUE
XT7
FAN3
BL UE
BLU E
BLUE( N)
CAP3
XT6
BLUE( N)
BLUE (N)
1 2 3
XT4
TO IN DOOR
CN200
CN1 00
T201
BLA C K(L 1)
A1
1
3
BLACK( L2)
BLACK( L3)
5
BLUE
21
BLUE
T3
COMP
HEAT
BLUE(N)
BLA CK
A B C
N
4
Y/G
XT3
Y/G
TO IN DOOR
T5
WI RI NG DIAGRAM
PART NAM E
CODE
COM PRESSOR
C OMP
O UTDOO R FAN
FAN3
FAN CAP.
C AP 3
KM1 AC CO NTACTOR
K M 1
A2
2
CRANK
H EA T
4
6
4- W AY TERMI NAL
X T 4
22
CO NNECTOR
X T5 -7
H-P RO HI GH PRESSURE SW I TCH
W HI T E
CURRENT DETECTOR
T201
T2
R T3 PI PE TEMP. SENSOR
R ED
T1
CO NNECTORS
X S8 -9
CONNECTORS
X P8 -9
CN100-208 P. C. BOARD SOCKETS
TEMP. PROTECT SW I TCH
K 1
ROO M TEMP. SENSOR
RT4
X T 3 5- W AY TERMI NAL
T5 TRANSFORMER
4- W AY VALVE
S .V
LOW PRESSURE S W I TCH
L- PRO