24
Step 3 — Separate Machine Components —
The design of the 23XRVchiller allows for disassembly at the
jobsite so that the individual chiller components may be
moved through existing doorways. Use the following proce-
dures to separate the machine components.
Suggested locations to cut piping will minimize the width of
the condenser/economizer assembly.
SEPARATE COOLER AND CONDENSER
NOTE: For steps 1 through 13 refer to Fig. 17 for units with Q
or R compressors, or Fig. 18 for units with P compressors. The
cooler in Fig. 17 has been removed from the picture to show
the pipes and lines that must be cut.
Check that the holding charge has been removed from the
chiller.
1. Place a support plate under each tube sheet to keep each
vessel level (does not apply to units with P compressor).
2. Remove cooler relief valve and relief valve vent piping
(cooler not shown in Fig. 17 or 18, see Fig. 3, 4, or 5).
3. Cut the motor cooling refrigerant drain line (see Fig. 17,
item 4) (does not apply to units with P compressor).
4. Unbolt and rig the suction elbow off (does not apply to
units with P compressor) and disconnect the compressor
suction line at the cooler and compressor. Remove bolts
from the vaporizer vent line flange.
5. Cut the VFD cooling drain line (see Fig. 17, item 11)
(does not apply to units with P compressor).
6. Cut the oil reclaim line(s) (see Fig. 17, item 12, or Fig. 18,
item 10) .
7. Cut the hot gas bypass line between the HGBP (hot gas
bypass) solenoid valve and cooler feed line (see Fig. 17,
item 10, or Fig. 18, item 11).
8. Cut or unbolt the cooler liquid feed line (see Fig. 17, item
9, or Fig. 18, item 3), near the economizer or condenser
float chamber at the flanged connection. For economized
units with Q or R compressors, temporarily secure the in-
line economizer orifice plate to the economizer flange.
CONDENSER
PRESSURE
CABLE
HOT GAS
BYPASS
CABLES
ECONOMIZER PRESSURE
SENSOR CABLE AND
ECONOMIZER
TEMPERATURE
SENSOR CABLE
a23-1686
a23-1687
EVAPORATOR LEAVING
LIQUID TEMPERATURE
SENSOR CABLE
EVAPORATOR ENTERING
LIQUID TEMPERATURE
SENSOR CABLE
CONDENSER LEAVING
LIQUID TEMPERATURE
SENSOR CABLE
CONDENSER ENTERING
LIQUID TEMPERATURE
SENSOR CABLE
END VIEW
OIL PUMP
CONDUIT
OIL DISCHARGE
PRESSURE
SENSOR CABLE
OIL SUMP
PRESSURE
CABLE
OIL SUMP
TEMPERATURE
SENSOR CABLE
OIL HEATER
CONDUIT
EVAPORATOR
SATURATED
TEMPERATURE
SENSOR CABLE
TEMPERATURE
SENSOR
CABLE
COOLER
PRESSURE
CABLE
Fig. 16 — Electrical Cable Routing (Unit with P Compressor Shown)
BACK VIEW
IMPORTANT: If the cooler and condenser vessels must
be separated, the heat exchangers should be kept level
by placing a support plate under the tube sheets. The
support plate will also help to keep the vessels level and
aligned when the vessels are bolted back together.
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