Parker Zander WVM 1080, Operating Manual

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EN | Operating manual Options
WVM 40 -1450 19
The intake fi lter is fl ange mounted and can therefore only be installed in conjunction with a
intake socket (see before).
Loop regeneration (loop cooler)
The desiccant absorbs the moisture in the ambient air during the cooling phase. The amount
of moisture taken in can be accordingly high at very high ambient temperatures and relative
humidity (e.g. in tropical operating environments).
A loop cooler can be implemented in order to prevent this situation and to ensure a stable
pressure dewpoint under above mentioned adverse circumstances. This principle implies
taking in the regeneration air only once and then circulating it. The heat dissipates via a water
cooled heat exchanger.
The operator must provide a cooling water connection and appropriate cooling water valves.
Note:
The heat exchanger choice depends on the quality of the cooling water. For this
purpose, you should contact the dryer manufacturer beforehand.
Steam heat exchanger
To heat the regeneration air, a steam heat exchanger can also be used as an alternative to
the standard electric heater. The steam heat exchanger comes with an appropriate steam
shut-off valve.
In this case, the scope of delivery can also comprise supplementary documents such as data
sheets or supplementary operating manuals.
Steam/electric heater combination
In this option, the existing electric heater is supplemented by an additional steam heat ex-
changer. This allows for three operating modes:
Pure steam operation
Suffi cient hot steam is available for regeneration. The electric heater is not needed.
Pure electric operation
Hot steam is not available, the electric heater performs all the heating.
Combination operation
The heating capacity of the steam heat exchanger is not suffi cient to reach the required
regeneration temperature. As a consequence, the electric heater is turned on to compensate
for the temperature defi cit.
Paint compatible variant
Paint fi nishing systems make great demands on the compressed air purity because even the
tiniest impurity can degrade the paint quality. Diminutive amounts of foreign particles con-
taining oil and grease or solvents — in particular silicones — can result in craters, discoloura-
tions, swells or other paint impurities.
Paint compatible dryers are equipped with seals and fi lters that are absolutely free of grease
and silicone and thus ensure a high compressed air quality for painting.