Table of Contents
Advertisement
Electrical Drawings - continued
D
e
s
g i
n
a
o i t
n
D
E
S
C
R
P I
T
O I
N
A CC
A CCESSORY
- ADIS
DISPLAY BOARD
-
A
M
B
M
C I
R
O
B
O
A
R
D
- BAMB
A MBIENT
-BDA T
DISCHA RGE AIR TEMPERATURE
-
B
D
P
D
S I
C
H
A
R
G
E
P
R
E
S
S
U
R
E
- BECT
ENTERING CHILLED TEMPERATURE
- BLCT
LEAV ING CHILLED TEMPERATURE
NOT FITTED ON REMOTE EV AP. UNITS
-BMP
MOTOR PROTECTOR COMPRESSOR
-
B
S
P
S
U
C
T
O I
N
P
R
E
S
S
U
R
E
-CPF
CAPACITOR POWER FA CTOR
- ECH
CRA NKCASE HEATER
-EEH
EVA PORATOR HEA TER
E -
H
R
H
H
E
A
T
R
E
C
O
V
E
R
Y
H
E
A
T
E
R
-EPH
PUMP HEATER
-EXT
EXTERNA L TO CONTROL PANEL
- F
FUSE
-
F
H
P
H
G I
H
P
R
E
S
S
U
R
E
C
U
T
O
U
T
-FSC
FAN SPEED CONTROLLER
FAN SPEED INHIBIT TWO SPEED
-FSI
FAN OPTION ONLY
GND
GROUND
G/Y
GREEN / YELLOW
J
P
L
U
G
B
O
A
R
D
C
O
N
N
E
C
T
O
R
K -
C
R I
C
U
T I
B
O
A
R
D
R
E
L
A
Y
-KF
(INCLUDING COIL SUPPRESSOR)
-KFH
FAN CONTACTOR HIGH SPEED
(INCLUDING COIL SUPPRESSOR)
-KFL
FAN CONTACTOR LOW SPEED
(INCLUDING COIL SUPPRESSOR)
-KFOL
FAN OVERLOAD
-KFS
RELA Y FA N SPEED
-KH
HEATER RELAY
-KM
COMPRESSOR CONTA CTOR
(INCLUDING COIL SUPPRESSOR)
-KCR
CONTROL RELAY
-KP
PUMP CONTA CTOR PA RT
(INCLUDING COIL SUPPRESSOR)
-KT
RELA Y TIMER
- M
COMPRESSOR MOTOR
-MF
MOTOR FAN
-MP
MOTOR PUMP
NU
NOT USED
PE
PROTECTIV E EARTH
PWM
PULSE WIDTH MODULATION TEMP
RESET or REMOTE UNLOAD 2nd STEP
44
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
E
R
P
U
M
P
-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
T
-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
R I
E
D
O
N
R
E
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
GENERAL
a.
THIS DRAWING IS BASED ON IEC SYMBOLS.
b.
FIELD WIRING TO BE IN ACCORDANCE WITH THE RELEVANT ELECTRICAL CODE AS WELL AS ALL OTHER
APPLICABLE CODES AND SPECIFICATIONS
c.
ALL SOURCES OF SUPPLY SHOWN ON THIS DIAGRAM TO BE TAKEN FROM ONE MAIN ISOLATOR, NOT
SHOWN OR SUPPLIED BY YORK.
d.
GREEN AND YELLOW WIRE IS USED FOR EARTH, MULTI-COLOURED CABLE USED FOR LOW VOLTAGE.
RED WIRE USED FOR A.C. CONTROL, BLUE WIRE FOR NEUTRAL, BLACK WIRE FOR A.C. AND D.C.
POWER. ORANGE WIRE SHOULD BE USED FOR INTERLOCK CONTROL WIRING SUPPLIED BY EXTERNAL
SOURCE.
e.
LEGEND DESIGNATION DEPICTS COMPONENT ABBREVIATIONS. NUMBER PREFIX LOCATED, IF
APPLICABLE, ON SCHEMATIC CIRCUIT, REFERS TO SYSTEM THEREON, E.G.= 1-FHP2 REFERS TO HIGH
PRESSURE CUTOUT NO 2 ON SYSTEM NO 1.
f.
ALL WIRING TO CONTROL SECTION VOLTAGE FREE CONTACTS REQUIRES A SUPPLY PROVIDED BY THE
DERIVING THE SUPPLIES FOR THE VOLTAGE FREE TERMINALS WITH REGARD TO A COMMON POINT OF
ISOLATION. THUS, THESE CIRCUITS WHEN USED MUST BE FED VIA THE COMMON POINT OF ISOLATION
THE VOLTAGE TO THESE CIRCUITS IS REMOVED WHEN THE COMMON POINT OF ISOLATION TO THE UNIT
IS OPENED. THIS COMMON POINT OF ISOLATION IS NOT SUPPLIED BY YORK. THE YORK VOLTAGE
FREE CONTACTS ARE RATED AT 100VA. ALL INDUCTIVE DEVICES {RELAYS} SWITCH BY THE YORK
VOLTAGE FREE CONTACTS MUST HAVE THEIR COIL SUPPRESSED USING STANDARD R/C SUPPRESSORS.
g.
CUSTOMER VOLTAGE FREE CONTACTS CONNECTED TO TERMINAL 13 MUST BE RATED AT 30V 5ma
NO CONTROLS {RELAYS ETC.} SHOULD BE MOUNTED IN ANY SECTION OF THE CONTROL PANEL.
ADDITIONALLY, CONTROL WIRING NOT CONNECTED TO THE YORK CONTROL PANEL SHOULD NOT BE RUN
h.
THROUGH THE PANEL.
IF THESE PRECAUTIONS ARE NOT FOLLOWED, ELECTRICAL NOISE COULD CAUSE MALFUNCTIONS OR
DAMAGE TO THE UNIT AND ITS CONTROLS.
I.
MOTE
120/14.3 - (SIGNAL IN/OUT) I.E. 120 IS WIRE # AND 14.3 REFERS TO SHT. 14 COLUMN 3
FORM 150.63-EG4 (1012)
JOHNSON CONTROLS
Hide quick links:
Advertisement
Table of Contents
