Donaldson Torit WSO 20, Installation And Operation Manual

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WSO Mist Collector, WSO 20, 25-1, 25-2, and 25-3
20
Optional Equipment
Factory-Installed HEPA/95% DOP Filter
Any HEPA or 95% DOP Filter module ordered with
any WSO collector comes with a factory-installed
Magnehelic or Minihelic gauge for measuring the
pressure drop across the filter.
On WSO 20 and 25-1, the HEPA or 95% DOP afterfiler is
attached to the top of the WSO unit using side-mounted
latches.
Magnehelic
gauge
afterfilter
latch
Magnehelic Gauge Configurations
with HEPA/95% DOP Module, WSO 25-1 shown
Field Installation (WSO 20 and 25-1)
An afterfilter installation kit is available for customers
who decide to add a HEPA or 95% DOP filter to an
existing field-operating WSO 20 or 25-1 unit originally
configured with a standard exhaust. The field kit
includes: afterfilter, latches, hardware, and Magnehelic
gauge kit.
Latch and Afterfilter Installation
1. Turn the blower motor off.
2. Open the blower motor access door (WSO 25-1)
or remove the exhaust grill by removing the 12
bolts (WSO 20). The exhaust grill on WSO 20 is not
reinstalled.
3. Locate the existing four (4) sets (WSO 25-1) of 0.180
diameter latch holes on the roof.
4. Using the latch hardware provided, install the
latches as shown in the Latch Installation sketch.
5. Place the afterfilter, gasket side down, on top of the
exhaust outlet, and secure with the latches.
latch
latch
hole
roof
Latch and Afterfilter Installation