27
Table 8B — 19XR Waterbox Cover Weights — SI (kg) (cont)
LEGEND NOTE: Weight for NIH 2-pass cover, 1034 kPa, is included in the
heat exchanger weights shown in Tables 6A and 6B.
RIG MACHINE COMPONENTS — Refer to instructions
below, Fig. 7-10, and Carrier Certified Prints for machine com-
ponent disassembly.
.
NOTE: 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.
NOTE: Wiring must also be disconnected. Label each wire
before removal (see Carrier Certified Prints). In order to dis-
connect the starter from the machine, remove wiring for the oil
pump, oil heater, control wiring at the power panel, and the
main motor leads at the starter lugs.
Remove all transducer and sensor wires at the sensor. Clip
all wire ties necessary to pull heat exchangers apart.
To Separate Cooler and Condenser:
1. Place a support plate under each tube sheet to keep each
vessel level (Fig. 7, Item 6).
2. Cut the refrigerant motor cooling line at the location
shown (Fig. 7, Item 7).
3. Disconnect the compressor discharge elbow at the com-
pressor (Fig. 8, Item 6).
4. Cut the hot gas bypass line at the location shown (Fig. 7,
Item 1).
5. Unbolt the cooler liquid feed line at the location shown
(Fig. 7, Item 10).
6. Cover all openings.
7. Disconnect all wires and cables that cross from the cooler
side of the machine to the condenser side, including:
a. temperature sensor cable at the waterbox (Fig. 9,
Item 5)
WATERBOX
DESCRIPTION
COOLER
FRAME 7 FRAME 8
STANDARD
NOZZLES
FLANGED
STANDARD
NOZZLES
FLANGED
NIH, 1 Pass Cover, 1034 kPa 149 200 189 224
NIH, 2 Pass Cover, 1034 kPa 193 245 245 314
NIH, 3 Pass Cover, 1034 kPa 567 586 739 765
MWB End Cover, 1034 kPa 383 383 510 510
NIH/MWB Return Cover, 1034 kPa 143 143 183 183
NIH, 1 Pass Cover, 2068 kPa 777 854 1070 1144
NIH, 2 Pass Cover, 2068 kPa 754 865 1075 1179
NIH, 3 Pass Cover, 2068 kPa 782 820 1067 1141
NIH/MWB End Cover, 2068 kPa 625 625 885 885
WATERBOX DESCRIPTION
CONDENSER
FRAME 7 FRAME 8
STANDARD
NOZZLES
FLANGED
STANDARD
NOZZLES
FLANGED
NIH, 1 Pass Cover, 1034 kPa 149 200 189 224
NIH, 2 Pass Cover, 1034 kPa 183 236 230 300
NIH, 3 Pass Cover, 1034 kPa 554 580 666 693
MWB End Cover, 1034 kPa 354 354 457 457
Bolt-on MWB End Cover, 1034 kPa 318 318 593 593
NIH/MWB Return Cover, 1034 kPa 143 143 183 183
NIH, 1 Pass Cover, 2068 kPa 767 840 901 976
NIH, 2 Pass Cover, 2068 kPa 738 845 859 1008
NIH, 3 Pass Cover, 2068 kPa 777 831 904 958
NIH/MWB End Cover, 2068 kPa 579 579 760 760
NIH — Nozzle-in-Head
MWB — Marine Waterbox
IMPORTANT: Only a qualified service technician should
perform this operation.
WARNING
Do not attempt to disconnect flanges while the machine is
under pressure. Failure to relieve pressure can result in per-
sonal injury or damage to the unit.
CAUTION
Before rigging the compressor, disconnect all wires enter-
ing the power panel to avoid unit damage.
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