Atlas Copco ZR 200 Instruction Book page 100

Condition
Compressor capacity or
working pressure lower than
normal
Oil pressure too low
Air temperature above normal
Condensate is not discharged
from condensate traps during
operation
Drain continuously discharges
air
98
Fault
Loading solenoid valve
inoperative
Full-load/no-load valve
malfunctioning
Air consumption exceeds
capacity of compressor
Leaking connections and
damaged/leaking parts
Oil level too low
Oil filters clogged
Inlet temperature too high due
to bad room ventilation or
recirculation of cooling air
On ZR compressors,
insufficient cooling water flow
On ZR compressors,
restriction in cooling water
system due to formation of
scale or dirt deposits
Unloading pressure incorrectly
set
Drain/pipe clogged
Frozen drain piping
Venting lines not/badly
assembled
Only on IC drain : intercooler
condensate check valve
defect/dirty/wrongly
assembled
Solenoid valve defect/dirty
Manually operated solenoid
valve
Level sensor defect/dirty
Damaged/poor assembled
condensate drain (housing/
seals/valve/...)
Solenoid valve defect/dirty
Level sensor defect/dirty
Remedy
Check and replace the valve as necessary
Have the valve inspected
Check pneumatic plant
Check for leaks. Tighten leaking
connections and replace damaged/leaking
parts.
Top up level as described in section Before
starting.
Replace filters
Improve ventilation in compressor room
and prevent recirculation of cooling air
Check water temperature and increase
cooling water flow
Consult the Atlas Copco Customer Center
Check the controller setting.
Check and correct
Check and correct
Check and correct
Check and correct
Check and correct
Set valve to automatic operation
Clean sensor or replace as necessary
Check and correct
Check and correct
Clean sensor or replace as necessary
Instruction book
AIF999999