User manual

ManualsBrandsAtlas Copco ManualsAir CompressorGA315 W

2920 1475 00

Instruction book

The system includes an OSD315 oil/water separator (shown at

the left) connected to the condensate trap downstream of the

air cooler. The condensate is led from the condensate trap

through inlet (4) and filter (5) towards water vessel (3) where

the oil rises due to the difference in specific mass. The water

flows through condensate outlet (1) to the outside of the

bodywork. The oil flows into collector (6), which must be

emptied regularly.

For Full-feature compressors, the system also includes an

OSD90 (shown at the right) connected to the dryer condensate

trap. OSD90 are additionally provided with a pre-filter (7)

and a pressure gauge (8).

Servicing procedure

1. Stop the compressor, press emergency stop button (S2-Fig.

3.8) and switch off the voltage.

2. Close the outlet valve and open the valve underneath the

air cooler condensate trap.

3. Oil the gaskets of the new filters, fill the filters with water

and fit them.

4. On OSD90, unscrew the pre-filter housing, fit a new pre-

filter and fit the housing using a new O-ring.

5. Inspect the strainer/restrictors at the inlet of the separator

vessels, clean and reinstall them. Close the valve underneath

the condensate trap.

6 PROBLEM SOLVING

Warning Before carrying out any maintenance, repair or

adjustment, stop the compressor, press emergency

stop button (S2-Fig. 3.8) 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 shut-down warning message appears on the display

LED (7-Fig. 3.8) 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

2 Unit is shut down

LED (7-Fig. 3.8) 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")

3 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 leakage

c Check and correct

6 Compressor element 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 GA W, cooling water temperature too high or flow too

low

b See section 7.5. Increase water flow and check temperature

1 Water outlet

2 Oil outlet

3 Water vessel

4 Condensate inlet

5 Filter

6 Oil collector

7 Pre-filter

8 Pressure gauge

Fig. 5.1 OSD90/315 oil separators (option)

Footnote chapter 6

1) On compressors with optional OSD separator, a valve is fitted

underneath the condensate trap. Close the valve after repairing.

51446F