Atlas Copco GA 37 VSD Instruction Book page 20

Reference
Da
Dm
Da1
Dm1
Beside each automatic drain outlet is a manual (Dm) condensate drain connection for manually
draining of the condensate.
Electronic drains
On some models, another model of electronic drains is used.
Operation
The condensate accumulates in the collector of the drain. When the condensate reaches a
certain level, it is discharged through the automatic drain outlet (Da).
The Test button on top of the drain can be used in three different ways, according the situation:
• When pressed during normal operation, it starts the manual drain test.
• When pressed during an alarm, it resets the control logic
• By pressing the Test button for at least 5 seconds, the self diagnosis routine will start.
LED explanation
Green LED on
Normal operation, drain is in standby and awaiting condensate.
Green LED blinking
Normal operation, drain valve is open to drain water.
18
Designation
Automatic drain connection
Manual drain connection
Automatic drain connection of the dryer (only on Full-Feature units)
Manual drain connection of the dryer (only on Full-Feature units)
Electronic condensate drains
Instruction book
API480496