Product Manual

13
2920 1339 02
Instruction book
1. Switch off and
depressurize the dryer
before starting
maintenance or repairs
2. Manual condensate
drain
3. Automatic condensate
drain
4. Pressure dewpoint
5. Dryer on-off
6. Voltage on
7. Dewpoint alarm
Fig. 9. Pictographs
H1. Indicator lamp, VOLTAGE ON
S1. Button, ON-OFF
1. Pressure dewpoint indicator
2. Pictograph, pressure dewpoint
3. Pictograph, dryer on-off
4. Pictograph, dewpoint alarm
Fig. 10. Control panel
2.4 Pictographs (Fig. 9)
3 OPERATING INSTRUCTIONS
Safety precautions
The operator must apply all relevant safety precautions,
including those mentioned in this book.
Altitude operation
Consult Atlas Copco if operating above 3000 m.
3.1 Starting (Fig. 10)
1. If installed, close the dryer by-pass valve.
2. Press on-off button (S1).
3. Open the dryer air inlet valve (customer's installation).
4. Approx. 5 minutes later, open the dryer air outlet valve
(customer's installation).
5. Approx. 10 minutes later, the nominal dewpoint will be
reached.
3.2 During operation
Regularly check:
1. Pressure dewpoint indicator (1-Fig. 10). 1)
2. That condensate is discharged (7-Fig. 7). The amount
depends on the operating conditions.
3. Regularly open manual drain valve (5-Fig. 7) for approx.
10 seconds to discharge condensate and possible impurities.
3.3 Stopping (Fig. 10)
1. Close the dryer inlet and outlet valves (customer's
installation).
2. Press on-off button (S1). The dryer stops. Voltage on lamp
(H1) remains alight.
1) The pressure dewpoint will deviate from nominal if the air inlet
conditions or volume flow differ from nominal.