Atlas Copco GR110, Инструкция

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Instruction book
6 PROBLEM SOLVING
Warning Before carrying out any maintenance, repair or
adjustment, stop the compressor, press emergency
stop button (S2-Fig. 3.5) and switch off the
voltage. Close the air outlet valve and open the
manual condensate drain valve(s). 1)
Take precautions to avoid an accidental restart.
Apply all relevant safety precautions, including
those mentioned in this book.
Faults and suggested remedies
1 A service message appears on the display
Replace the indicated component or grease the drive motor
as the case may be. Consult the "User manual for
Elektronikon regulator" to remedy the trouble and to reset
the message (section "Submenu SERVICE")
2 A shut-down warning message appears on the display
LED (3-Fig. 1.6) will light up indicating that the temperature
at the outlet of the compressor elements is too high. See
below. The message disappears as soon as the cause of the
trouble is remedied
3 Unit is shut-down
LED (3-Fig. 1.6) will blink indicating either that the outlet
temperature is too high (see below) or that the motor
overload relay has tripped. Consult the "User manual for
Elektronikon regulator" to remedy the trouble and to reset
the message (section "Submenu STATUS DATA")
4 Condensate is not discharged from condensate trap(s)
during loading
a Discharge pipe of condensate trap clogged
a Check and correct as necessary
b Float valve of condensate trap(s) malfunctioning
b Remove float valve assembly, clean and check
5 Compressor air delivery or pressure below normal
a Air consumption exceeds air delivery of compressor
a Check equipment connected
b Choked air filters
b Replace filters
c Air leakages
c Check and correct
6 Compressor elements outlet temperature or delivery air
temperature above normal
a Insufficient cooling air
a Check for cooling air restriction. Improve ventilation of
compressor room. Avoid recirculation of cooling air
b On GR W, cooling water temperature too high or flow too
low
b See section 7.5. Increase water flow and check temperature
c Oil level too low
c Check and correct as necessary
d Oil coolers clogged
d Consult Atlas Copco
e Air cooler clogged
e Consult Atlas Copco
f On GR W, restriction in cooling water system due to dirt or
formation of scale
f Consult Atlas Copco
7 If an oil/water separator (OSD) is provided: turbulences
in separator vessel
a Air leakage through condensate flexible towards vessel
a Remove float valve assembly, clean and check
Footnote chapter 6
1) On compressors with optional OSD separator, a valve is fitted
underneath the condensate trap. Close the valve after repairing.