Restart
44
HDK350_EN_01_2005-05-10
Restart
Depending on the fittings installed by the operator and the actual pressure
conditions, the unit might have to be restarted at operating pressure. The
following general rules apply:
When switched off, the dryer is blocked in the main flow direction.
The pressure in the vessel drops (provided that the compressed air outlet
valve provided by the operator is opened), if
—
compressed air can escape to the compressed air system,
—
the dewpoint-sensing control is implemented.
If compressed air system and dryer have remained at operating pressure
►
Ensure that the compressed air inlet valve (provided by the operator) is open.
►
Set ON/OFF switch to
I
. The programme
continues the cycle from the point at which it
was interrupted.
ON/OFF switch
Slowly open compressed air outlet valve!
Avoid a sudden drop in pressure in any circumstance! If pressure drops too
fast, this may cause damage to the dryer. Therefore, the compressed air
outlet valve must always be opened quite slowly!
►
Slowly open the compressed air outlet valve installed by the owner. Observe
the vessel pressure gauge of the pressurised vessel. The pressure should
not drop below the operating pressure (if poss.). If necessary, keep the
compressed air outlet valve in a slightly open position until the compressed
air system downstream of the dryer has filled up completely; only then should
the valve be opened fully.
The dryer is now in operation again and operates fully automatically.
If compressed air system and dryer have not remained at operating pressure
►
If disconnected, reconnect the voltage supply of the dryer.
►
Pressurise and switch on the dryer as described in the section
Open
compressed air supply and switch on dryer
on page 37.
The dryer is now in operation again and operates fully automatically.
Summary of Contents for HDK 50/100
Page 1: ...High Pressure Dryer HDK 50 100 600 350 Operating Instructions Issue 05 2005 EN...
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Page 72: ...Dimensional drawing 72 HDK350_EN_01_2005 05 10 Items Option...