York YCUL0045E, Installation Operation & Maintenance

Page: 11 / 144

JOHNSON CONTROLS
11
FORM 150.63-NM8 (1020)
LD04284A
REFRIGERANT FLOW DIAGRAM
FIG. 1 – REFRIGERANT FLOW DIAGRAM
2 OR 3 COMPRESSORS PER SYSTEM
OIL
EQUALIZING
LINE
AIR COOLED CONDENSERS
SER
VICE V
AL
VE
OPTIONAL
DISCHARGE
PRESSURE
TRANSDUCER
HIGH PRESSURE CUT
OUT
SWITCH
SER
VICE
VA
LV
E
LOW PRESSURE SWITCH OR
SUCTION PRESSURE
TRANSDUCER
DISCHARGE LINE BALL
V
AL
VE
LIQUID LINE SER
VICE V
AL
VE
LIQUID LINE SOLENOID V
AL
VE
**
TXV
SUCTION LINE BALL
V
AL
VE
SIGHT
GLASS /
MOISTURE INDICA
TO
R
SOLENOID OPERA
TED
HOT
GAS BYP
ASS V
AL
VE
*
YCUL
REFRIGERANT
FLOW DIAGRAM
NOTE:
YCUL0046-0090 HA
VE
TWO REFRIGERANT
SYSTEMS
* HOT
GAS OPTION - SYSTEM 1 ONL
Y
LIQUID LINE FIL
TER DRIER
EV
AP
.
AIR FLOW
DISCHARGE
AIR
TEMPERA
TURE SENSOR
OPTIONAL
SUCTION
TEMP
SENSOR
FA
CT
OR
Y
PIPING
FIELD PIPING
T
T
**One
TXV and Liquid Line Solenoid shown for illustration purposes.
Actual refrigerant piping may vary depending on evaporator
circuiting.
0125-0275