Instruction Manual
W32- Series Medium-Vertical Compressors
Page I - 16.
WARNING
•
Do not adjust the safety valves and do not alter their original settings. Only authorized service
technicians are certified to make such adjustments. If required, replace and return the old one for
reconditioning to the factory or to a dealer nearest you.
•
Do not remove the leaking safety valves and do not replace it with a plug. This may be extremely
dangerous. If safety valve leaking, replace it.
3.4. Drain Timer Adjustment :
The drain function is controlled by a sequential timer
relay that is located inside the control cabinet. This is
how this relay looks Figure 3.4.1:
1
0
0
5
5
10
10
15
15
20
20
25
25
30
30
2
3
a
b
Figure 3.4.1
On this relay you will find two dials to control the time
adjustment petentiometers (see Figure 3.4.2)
The dial on the left controls the length of period
during which the vent valve remains open (drains the
condensate).
It is adjustable between 0 to 10 seconds. The dial
does not have figures on; it needs to be proportionally
adjusted. The full scale shows 10 seconds, while half
the scale will indicate 5 seconds.
Normally, it should be set to approximately 5 seconds.
If within 5 seconds all the moisture is drained, and too
much air is wasted, shorten the draining period; if
condensate is not fully drained, increase the draining
period.
The dial on the right is used to adjust the period
during which the drain valve will remain closed. Adjust
this period depending on the specific operating
conditions. This dial controls a potentioemeter that
sets the relay between 0 to 30 minutes. Default value
is 15 minutes.
Draining
Adjustable
Adjustable
Drain valve
period
0-30" (min)
0-10" (sec)
closed
period
Figure 3.4.2
Fill in the following forms (total 2 pages) at the initial start up. Send a copy to the
manufacturer for record keeping, and retain the original report n the file of your
compressor.
