Parker Airtek SMART CYCLE PLUS 80, Operator'S Manual, Page: 18 / 45

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6. Using a refrigeration service or small crescent wrench, turn the valve stem counterclockwise until
it stops. Occasionally it may be necessary to re-tighten the packing nut (turn clockwise) if a leak
is noticed. The valve will now be fully opened. (Fig. 3)
7. Replace
cap.
8. Switch unit on by selecting the Load-Unload button. On / Off green LED indicator will light when
unit is running.
9. If the storage conditions were adverse (for example very cooled) the refrigeration compressor
may make a loud metallic hammering noise. If this happens, turn the dryer off at the panel and
wait 60 seconds. Then turn the dryer back on. Repeat this procedure until the refrigeration
compressor runs smoothly. The dewpoint should start to drop towards the set point.
Valve Cap
(Turn CCW to remove)
Valve Stem
(Turn CCW to open)
Packing Nut (CW)
Tighten after opening
Closed Position Open Position
Figure 3