York YLUA0078 User Manual

JOHNSON CONTROLS
27
SECTION 2 – PRODUCT DESCRIPTION
FORM 150.73-NM1
ISSUE DATE: 09/04/2020
2
REFRIGERANT FLOW DIAGRAM
2 OR 3 COMPRESSORS PER SYSTEM
OIL EQUALIZING LINE
AIR COOLED CONDENSERS
SERVICE VALVE
OPTIONAL DISCHARGE PRESSURE TRANSDUCER
HIGH PRESSURE CUTOUT SWITCH
LOW PRESSURE SWITCH OR
SUCTION PRESSURE TRANSDUCER
LIQUID LINE SERVICE VALVE
LIQUID LINE SOLENOID VALVE
** TXV
SIGHT GLASS / MOISTURE INDICATOR
SOLENOID OPERATED HOT GAS BYPASS VALVE
*
YCUA REFRIGERANT FLOW DIAGRAM
NOTE: YCUA0078-0158 HAVE TWO REFRIGERANT SYSTEMS
* HOT GAS OPTION - SYSTEM 1 ONLY
LIQUID LINE FILTER DRIER
DX COIL
AIR FLOW
DISCHARGE AIR
TEMPERATURE SENSOR
OPTIONAL SUCTION TEMP SENSOR
FACTORY PIPING FIELD PIPING
T
T
**One TXV and Liquid Line Solenoid shown for illustration purposes. Actual refrigerant piping may vary depending on evaporator circuiting.
(OPTIONAL)
SERVICE
VALVE
(OPTIONAL)
LD04284A
FIGURE 5 - REFRIGERANT FLOW DIAGRAM

York YLUA0078 Specifications

General

Brand	York
Model	YLUA0078
Category	Heat Pump
Language	English