Use and Care Manual

15
Parameters Table
Parameters
Description
Min
Max
Default
Unit
/4
Select probe display
0F0F
1
1
3
1
/C1
Offset of probe 1
1F1F
2
10.4
53.6
28.4
°F
/C2
Offset of probe 2 (not used)
10.4
53.6
28.4
°F
/C3
Offset of probe 3 (not used)
10.4
53.6
28.4
°F
Set
Set point
30
176
30
°F
Rd
Control differential (not used)
32
176
32
°F
P1
Duration of auto purge
0
999
4
Second
P2
Time interval between two auto purges
0
999
2
Minute
P3
Short manual purge cycle
0
999
1
Minute
P4
Long manual purge cycle
0
999
0
Minute
AL (not used)
Threshold/Deviation for the low temperature
alarm
-
58
302
32 °F
AH (not used)
Threshold/Deviation for the high temperature
alarm
-
58
302
32 °F
Changing condensate drains parameters
General
x The condensate drain energizes automatically opens every two minutes (parameter p2) for a duration of four seconds
(parameter p1). The factory setting matches the standard operating conditions of the dryer. However, you may have to :
x increase the duration and possibly the frequency of purging if the temperature of the air to be treated is higher than the
rated value and if there is water in liquid condensate downstream of the dryer.
x decrease the duration and possibly the frequency of the condensate drain if the temperature of the air to be treated is
lesser than the rated value (in the case of a water aftercooler after the air compressor) or if the compressed air to be
treated is not saturated with humidity (pre-drying or partial expansion)
The objective of properly adjusting the purge duration is simply to limit the loss compressed air to the absolute minimum
required for this operation. A properly adjusted purging operation is characterized by:
x the expulsion of condensates (water/oil emulsion) for the majority of the purge time.
x a short jet of dry compressed air without condensates at the end of the purge
Functioning of manual purge
Short cycle:
x Press the purge icon and hold for 1 second.
x The screen displays “Sho” for the first three seconds
x Release the button to start the short purge cycle (refer to P3 parameter)
Long cycle:
x Press the purge icon and hold for several seconds.
x The screen displays “Sho” for the first three seconds and then displays “Lon”.
x When the screen displays “Lon”, release the button to start the long purge cycle.
(refer to P4 parameter)
1
In IAD dryers, probe 1 is only used. Do not change this parameter
2
This offset allows taking into account the effects of heat transfer between the probe and the measured environment. Do not change this parameter.