070.610-IOM (JUL 21)
Page 73
RWF II Rotary Screw Compressor Units
Index
Index
compressor port locations, 50
compressor prestart checklist, 64
condenser, 24
condenser inlet, 9
condensing pressure, 9
condensing tempera ture, 10
conduit, 19
cone/button, 9
constant speed starters, 19
control power regulator, 16
control power transformer, 14
control transformer, 14
coolers, 5
cooling tower water, 11
cooling water, 11
coupling, 14
coupling data table, 7
coupling hubs, 6
CPT, 15
crane, 6
CT, 15
CT ratio, 15
current transformer, 15
cutout parameters, 24
cycle time, 25
D
Daisy-chaining, 21
dead band, 25
demand oil pump strainer, 35
demand pump, 23,24
Demand pump
Carbon-graphite bushings, 36,37,39
Thrust-bearing assembly, 38
Troubleshooting
Grease leaks from vent port, 47
Insufficient oil pressure,
Noise and vibration, 47
Oil pressure drops as head pressure
increases, 47
Oil pressure fluctuates,
Oil pressure rapidly drops, 47
"D" flange adapter,
disc drive spacer, 6
discharge check valve, 24,29
discharge pressure, 23
disconnect switches, 33
disc packs, 6
double-acting hydraulic cylinders, 25
double-acting mode, 25
double-acting solenoid valve, 26
drain valve, 35
drive coupling, 29
drive hubs, 7
dry nitrogen, 7,33
dual dip tube method, 10
dual-port liquid injection, 26
dual-setpoint, 13
DX economizer, 11
DX vessel, 12
E
economizer
back-pressure regulator valve, 12
balancing load, 12
BPR valve, 12
check valve, 12
DX economizer, 11
DX vessel, 12
economizer port, 11,12
economizer vessel, 12
electric shutoff option, 12
flash economizer system,
flash gas,
flash vapor,
heat exchanger, 11
isolation valve, 12
liquid feed solenoid, 12
liquid solenoid, 11
microprocessor, 11
outlet pressure regulator, 12
overpressurizing, 12
Packaged refrigerant
recirculation unit, 12
partial load, 12
port pressure, 12
strainer, 12
subcooled liquid, 12
subcooling, 11
suction bypass, 12
suction pressure, 12
economizer port, 11,12
economizer vessel, 12
elastomeric gear, 7
electric shutoff option, 12
entrapped refrigerant, 35
evaporator, 11
external controller, 14
external oil cooler, 8
External Oil Cooling, 31
external strainer, 23
EZ-CAL™, 46,58,61
EZ-COOL™, 27
F
filter assembly,
filter canister,
filter elements,
fixed bulkhead,
Symbols
three-phase ground, 18
three-phase supply, 18
A
abnormal operation
analysis and correction, 44
across-the-line, 14
atmospheric pressure, 34,36
axial load bearings, 23
axial loads, 23
B
back-feeding, 29
back flushing,
back-pressure regulator, 13
back-pressure regulator valve, 12
balance piston, 23,31
balance piston pressure regulator, 41
balancing load, 12
bleed valve, 34
booster application, 14,24
booster compressor, 31
booster systems, 29
BP, 25
BP coupling data table, 7
BPR valve, 12
brownouts, 16
C
cable trays, 19
check valve, 12,29
chemical cleaning process, 11
circuit breaker, 14
circuit breaker disconnect, 14
clamping bolts, 7
coalescer filter element,
coalescer filter retainer,
codes, 19
cold-start system, 24
cold-start valve, 24
comm port protection, 21
communications, 21
compressor
compressor, 12
discharge, 24
drive shaft, 23
hydraulic system, 25
lubrication, 24
motor, 14,15
oil tempera ture, 26
suction, 25
Vi, 25
compressor operating log sheet, 68