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FORM 150.72-NM3 (1020)
ISSUE DATE 10/05/2020
D
e
s
g i
n
A CC
- ADIS
-
A
M
- BAMB
-BDA T
-
B
D
- BECT
- BLCT
-BMP
-
B
S
-CPF
- ECH
-EEH
E -
H
R
-EPH
-EXT
- F
-
F
H
-FSC
-FSI
GND
G/Y
J
K -
-KF
-KFH
-KFL
-KFOL
-KFS
-KH
-KM
-KCR
-KP
-KT
- M
-MF
-MP
NU
PE
PWM
JOHNSON CONTROLS
ELECTRICAL NOTES AND LEGEND
a
o i t
n
D
E
S
C
R
P I
T
O I
N
A CCESSORY
DISPLAY BOARD
B
M
C I
R
O
B
O
A
R
D
A MBIENT
DISCHA RGE AIR TEMPERATURE
P
D
S I
C
H
A
R
G
E
P
R
E
S
S
U
R
E
ENTERING CHILLED TEMPERATURE
LEAV ING CHILLED TEMPERATURE
NOT FITTED ON REMOTE EV AP. UNITS
MOTOR PROTECTOR COMPRESSOR
P
S
U
C
T
O I
N
P
R
E
S
S
U
R
E
CAPACITOR POWER FA CTOR
CRA NKCASE HEATER
EVA PORATOR HEA TER
H
H
E
A
T
R
E
C
O
V
E
R
Y
H
E
A
T
E
R
PUMP HEATER
EXTERNA L TO CONTROL PANEL
FUSE
P
H
G I
H
P
R
E
S
S
U
R
E
C
U
T
O
U
T
FAN SPEED CONTROLLER
FAN SPEED INHIBIT TWO SPEED
FAN OPTION ONLY
GROUND
GREEN / YELLOW
P
L
U
G
B
O
A
R
D
C
O
N
N
E
C
T
O
R
C
R I
C
U
T I
B
O
A
R
D
R
E
L
A
Y
(INCLUDING COIL SUPPRESSOR)
FAN CONTACTOR HIGH SPEED
(INCLUDING COIL SUPPRESSOR)
FAN CONTACTOR LOW SPEED
(INCLUDING COIL SUPPRESSOR)
FAN OVERLOAD
RELA Y FA N SPEED
HEATER RELAY
COMPRESSOR CONTA CTOR
(INCLUDING COIL SUPPRESSOR)
CONTROL RELAY
PUMP CONTA CTOR PA RT
(INCLUDING COIL SUPPRESSOR)
RELA Y TIMER
COMPRESSOR MOTOR
MOTOR FAN
MOTOR PUMP
NOT USED
PROTECTIV E EARTH
PULSE WIDTH MODULATION TEMP
RESET or REMOTE UNLOAD 2nd STEP
SECTION 5 – TECHNICAL DATA
035-21966-101 REV G
D
e
s
g i
n
a
o i t
n
D
E
S
C
R
P I
T
O I
N
-QCB
CIRCUIT BREAKER
MANUA L MOTOR STA RTER COMPRESSOR
-QMMSC
-
Q
M
M
S
P
M
A
N
U
A
L
M
O
T
O
R
S
T
A
R
T
-QSD
SWITCH DISCONNECT
R
RESISTOR
R
E
D
R
E
D
RP
RUN PERMISSIV E
RU
REMOTE UNLOAD Ist STEP
SCH
THERMOSTA T CRANKCASE HEATER
SCR
SCREEN
-
S
F
F
L
O
W
S
W
T I
C
H
- SKP
KEYPAD
- SOA
SWITCH OFF A UTO
-SZT
ZONE THERMOSTAT
- T
TRANSFORMER
T -
C
T
R
A
N
S
F
O
R
M
E
R
C
U
R
R
E
N
-UBR
BRIDGE RECTIFIER
-WHT
WHITE
-
X
P
PLUGS BETWEEN POW./MICRO. SECTION
- XTBC
TERMINA L BLOCK CUSTOMER
- XTBF
TERMINA L BLOCK FACTORY
-YESV
EV APORATOR SOLENOID V ALVE
-YHGSV
HOT GAS SOLENOID V ALVE
(INCLUDING COIL SUPPRESSOR)
LIQUID LINE SOLENOID V ALVE
- Y LLSV
F
E I
L
D
M
O
U
N
T
E
D
A
N
D
W
EV AP. UNIT
-
Z
C
P
R
C
O
M
P
R
E
S
S
O
R
NOTE WELL {SEE NOTE}
NB
WIRING AND ITEMS SHOWN THUS
ARE STANDARD Y ORK ACCESSORIES
WIRING AND ITEMS SHOWN THUS
ARE NOT SUPPLIED BY Y ORK
ITEMS THUS ENCLOSED FORM A
COMPONENTS OR SETS OFCOMPONENTS
E
R
P
U
M
P
T
R I
E
D
O
N
R
E
MOTE
035-21966-101 REV G
53
5 5
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