16
YORK INTERNATIONAL
NOTES:
1. Outdoor unit and indoor unit should be located as close
together as possible.
2. Filter driers and cores provided by YORK for field installa-
tions by others.
3. Liquid line solenoid valves are required and may be ob-
tained from YORK as an option to be field installed just
upstream of expansion device.
4. Sight glass with moisture indication recommended, sup-
plied by others.
5. Expansion valves supplied by others to be properly sized
for each application.
6. Suction lines should be insulated. Double suction risers are
not required for most applications when proper ASHRAE
refrigeration pipe sizing guide lines are followed. The illus-
tration above shows a double suction riser if job conditions
or ASHRAE requirements make this necessary.
7. Piping must also meet all applicable codes and standards
for field piping.
FIG. 5 – PIPING SAMPLE
LD00569
LEGEND
ITEM NO.
DESCRIPTION
1
CONDENSING UNIT
2
SYSTEM #1 COMPRESSOR AND SUCTION CONNECTION
3
SYSTEM #2 COMPRESSOR AND SUCTION CONNECTION
4
SYSTEM #1 SUCTION LINE VERTICAL RISER
5
SYSTEM #2 SUCTION LINE VERTICAL RISER
6
SYSTEM #2 LIQUID LINE
7
SYSTEM #2 LIQUID SOLENOID VALVE
8
SYSTEM #2 SIGHT GLASS
9
SYSTEM #2 EXPANSION VALVE
10
SYSTEM #2 EQUALIZER LINE
11
SYSTEM #2 THERMO BULB (Connected to Expansion Valve)
12
SYSTEM #2 SUCTION LINE
13
#2 AIR HANDLING UNIT
14
SYSTEM #1 SUCTION LINE
15
#1 AIR HANDLING UNIT
16
FILTER DRIERS
17
SYSTEM #1 STOP VALVE
18
SYSTEM #2 STOP VALVE
19
SYSTEM #1 HOT GAS BYPASS LINE (OPTIONAL)
20
SYSTEM #2 HOT GAS BYPASS LINE (OPTIONAL)
