Figure 7 - Oil Pump Housing; Figure 8 - Liquid Line Re-Assembly; Figure 9 - High Pressure Cutout Tubing; Figure 10 - System Piping - York YD Manual

FORM 160.69-NM4
ISSUE DATE: 9/30/2020
6. Connect the oil drain lines between the com-
pressors oil drain flanges and oil pump housing
flanges. Be sure to install the proper gaskets and
hardware, see Figure 7 on page 19. The oil
pump and heater wiring have been disconneted at
the unit VSOP panel, see Figure 11 on page 20.
The wiring has been secured to the oil pump hous-
ing for shipment. Reconnect wiring to VSOP lo-
cated on evaporator.

FIGURE 7 - OIL PUMP HOUSING

7. Complete the refrigerant liquid piping beneath the
evaporator and condenser. Be sure the fill piece,
orifice plate, gaskets and hardware are properly
installed.

FIGURE 8 - LIQUID LINE RE-ASSEMBLY

JOHNSON CONTROLS
8. Tighten all hardware installed from the previous
steps 2 thru 8.
9. Assemble the Control Center to unit.
10. Assemble the VS Oil Pump Control Panel.
11. Install high pressure cutout tubing. Refer to Fig-
ure 9 on page 19.
Isolation Valve
with Actuator
LD09442

FIGURE 9 - HIGH PRESSURE CUTOUT TUBING

12. Install the refrigerant piping and oil return system
filters. Refer to Figure 10 on page 19.
Compressor #2

FIGURE 10 - SYSTEM PIPING

LD09435a
Isolation Valve
with Actuator
Compressor #1
Compressor #1
Compressor #2
VSOP Panel
LD09431
VSOP Panel
LD09433
19