070.610-IOM (JUL 21)
Page 75
RWF II Rotary Screw Compressor Units
Index
stop valve, 45
vibration analysis, 41
vibration readings, 41
volume ratio control,
volumizer unit,
manual solenoid, 35
manway bolts, 35
manway cover, 35
microprocessor, 11,13,25,26
microprocessor control system, 14
mist, 24
motor, 14
motor and bare compressor replace-
motor contactor, 14
motor rotation, 6
motor starter coils, 15
motor starter contactor, 14
motor starters, 33
mounting bolts, 6
movable slide stop, 25
movable slide valve, 23,25
MSS, 25
MSV, 25
MSV solenoid, 25
N
neoprene drive spacer, 7
nitrogen charge, 7
O
dual oil filters,
main oil filter,
oil, 5
oil charge, 8
oil charge reser voir, 24
oil-charging valve, 36
oil cooler, 10,23
oil-entrained refrigerant, 36
oil filter cartridges,
oil filters,
oil foaming, 8,34,36,42
oil heaters, 8,14
oil leakage, 8,34,42
oil level cutout, 8,34,36,42
oil level transmitter
replacement,
troubleshooting,
DIN plug,
oil manifold, 25,26,31
oil pressure loss, 8,42
oil pump, 23,24
oil pump coupling, 7
oil pump starter, 14
oil sampling valve, 42
oil seal, 23
oil separator, 13,23,24
oil strainer elements, 36
oil temperature, 10
operating level, 8
operating log sheet, 63
optical isolation, 21
orifice,
outlet pressure regulator, 12
overpressurizing, 12
P
packaged refrigerant recirculation
package vibration, 5
partial load, 12
pH, 11
P and I diagram, 58
pipe hangers, 5
piston, 24
plate and shell oil cooler, 9,10
plate and shell type thermosyphon oil
cooler, 10
port pressure, 12
power feed, 19
powermizer, 13.
see also
economizer
premature bearing failure, 33
pressure differential, 24
pressure limiting device.
see
high pres-
sure cut-out
pressure-regulating valve, 31
proportional band, 25
no pump, 23
PVC conduit, 19
Q
R
reboot, 21
receiver, 10,11
refrigerant charge, 5
refrigerant isolation valves, 10
refrigerant vapor, 36
refrigeration oil, 35
regulating control transformer, 14
roller bearings, 23
rotary screw compressor, 5
rotor contact, 23
S
safety valve, 10
sales order numbers, 3
sc2, 25
scaling, 11
self-lubricating, 23
separator, 6,8,36
serial number, 4
service valves, 36
setpoint, 13,25
severe water conditions, 11
SGC compressor, 25
SGC compressor, 23
angular-contact ball bearings, 23
axial load bearings, 23
axial loads, 23
balance pistons, 23
compressor drive shaft, 23
"d" flange adapter,
discharge pressure, 23
external strainer, 23
helical rotors, 23
infinitely variable volume ratio,
movable slide valve, 23
roller bearings, 23
rotor contact, 23
self-lubricating, 23
shaft rotation, 23
single-acting mode, 25
slide valve, 23
shaft rotation, 23
shunting device, 14
shutdown, 49
shutdown cycles, 8
shutdowns, 33
sight glass, 8,24,36
single-box control, 13
single-port liquid injection, 26
skip frequencies, 32
slide stop, 23
slide stop piston, 26
slide valve, 13,23,25
slide valve position, 31
slugging, 33
Sola® constant voltage (CV)
transformer, 14
solenoid, 13,35
solenoid valve, 11,25,26,31
solid-state, 14
spacer, 6
spring isolators, 5
star networks, 21
starter coil, 15
starter operating log sheet, 68
starter package, 14
starter wiring diagram, 14
start-up
CoolWare™, 31
discharge temperature, 31
hand expansion valve, 31
initial start-up, 31
prestart checklist, 31
start-up, 8
theoretical discharge temperature, 31
water control valve, 32
stop valve, 35
strainer, 11,12,35
strainer basket, 35
strainer cover, 35
strainer elements, 36
strainer inlet service valve, 35
subcooled liquid, 12
subcooling, 11
suction, 24
suction accumulators, 33
suction bypass, 12
