
JOHNSON CONTROLS 11
SECTION 1 - SHIPPING AND REASSEMBLY
FORM 160.75-N3
ISSUE DATE: 04/15/2019
1
Shipment Form 1/10
The unit is shipped with refrigerant charge; it is not
needed to relieve the pressure. DO NOT try to open
any valves to relieve pressure or open closures, cap, or
plugs on the compressor, shells, and elsewhere on the
system.
Reclaim the refrigerant in the system before any ser-
vice activities are carried out on the refrigeration sys-
tem. Fully relieve system pressure and then repair.
The unit is charged with tons of refriger-
ant; once an uncontrollable huge leak is
found, inform all of the relevant people
to evacuate from the building to prevent
from asphyxiation.
Never touch the refrigerant that is leak-
ing, especially the liquid refrigerant; this
will cause severe freezing to your hands
or body.
REASSEMBLY
The following is a step-by-step procedure to be used to re-
assemble the chiller. Refer to the Installation - Unit (Form
160.75-N1) for other instructions.
Form 7 Shipment
1. Locate cooler and condenser shells in their nal
position. Rigging holes exist on the top corners of
each tube sheet, four per shell.
2. Bolt the tube sheets together as shown in Figure
2 on Page 8. Note that the outside surfaces of
the tube sheets must be ush.
Form 3 and Form 7 Shipment
1. Assemble vibration isolators to unit. (Refer to the
Installation - Unit (Form 160.75-N1)
2. Level shells in both directions. The longitudi-
nal alignment of the shell should be checked by
placing a level on the top of the shell, next to
the discharge connection. Check the transverse
alignment by placing a level on the tops of both
end sheets. Refer to the Installation - Unit (Form
160.75-N1) for additional instructions to level the
unit. After shell is leveled, wedge and shim each
corner of the shell to solidly support it while as-
sembling the other parts.
3. Lift compressor/motor assembly and remove
packing materials (See Figure 4 on Page 12).
Carefully lower the compressor/motor assembly
on to the supports on the cooler. Fasten compres-
sor/motor assembly with the proper hardware. Do
not tighten the bolts until all connections are made
to the compressor.
4. Bolt the suction line between the compressor and
the cooler using proper gaskets and hardware.
5. Install the ll piece or isolation valve between the
compressor and the condenser using proper gas-
kets and hardware.
6. Connect the oil line between the compressor oil
drain ange and the oil sump ange. Be sure to
install proper gaskets and hardware.
7. Complete the refrigerant liquid piping beneath the
cooler and condenser. Be sure the ll piece, orice
plate, gaskets and hardware are properly installed.
8. Tighten all hardware installed in steps 3 thru 7
above.
9. Assemble the Control Center to unit. Note: Large
units have panel mounted on brackets for ship-
ping. Small units are shipped separately.
10. Assemble the Oil Pump Control Panel.
11. Install refrigerant piping and oil return system lters.
12. Pressure test. NOTE: Relief valves must be
plugged (or capped). Refer to Unit Operation and
Maintenance (Form 160.75-O1).
13. Evacuate and charge with refrigerant. Refer to
Unit Operation and Maintenance (Form 160.75-
O1).
14. All Units – Complete installation and nally lev-
el the unit per the Installation - Unit (Form 160.75-
N1).