johNSoN coNtroLS
2-70
ForM 102.20-N1 (1109)
installation
Installation of a 2” Prefilter In Combination with
a Single Header Final Filter
These instructions are for installing a 2” prefilter,
(typically PerfectPleat, Premium or Premium HM
pleated filter) used in combination with a single header
final filter (typically VariCel SH or DriPak 2000) into
16 ga. galvanized holding frames.
• Latches needed for this application are four (4)
P/N 026-35778-000 and four (4) 026-35778-007
as shown in Fig.2-98.
Follow instructions for Single
Headered (SH) filters then proceed
with this procedure for 2" Pre-filters.
installation of latches
1. Insert the straight end of the latch (P/N 026-35778-
007) between the two (2) knockouts furthest from
the corner.
2. Using a moderate amount of pressure, force the
latch over the third knockout
(See Fig. 2-104).
3. After both filters have been placed into the frame,
grasp the loose end of the latch and place it over
the prefilter frame, so that the latch secures the
prefilter to the SH filter. Repeat for the remaining
latches.
4. The filters should now be securely installed into
the frame,
as shown in Fig.2-105.
Fig. 2-104 – inStAll lAtCh P//n 026-35778-007
LD010496
Fig. 2-105 – inStAllEd CARtRigE W/PlEAtS
LD010160
Installation of SH Single Headered Filters
These instructions are for installing single header filter
(typically VariCel SH or DriPak 2000 filter) into 16 ga.
galvanized holding frames.
• Latches needed for these applications are four
(4) P/N 026-35778-000,
as shown in Fig.2-98.
• A single latch should be installed at each of the
four (4) corners of the frame.
• The latch fits into the set of knockouts, which
consists of two (2) rows of three (3) knockouts
.
The row of knockouts closest to the gasketing
should be used for nominal 1” filters or filters
with a 13/16” single header. The second set of
knockouts should be used for nominal 2” fil
-
ters.
installation of latches
1. Insert the straight end of the latch between the two
(2) knockouts furthest from the corner.
2. Using a moderate amount of pressure, force the
latch over the third knockout
.
3. The latch installation should now be complete. The
latch should now be “trapped” within the three (3)
knockouts, but should be able to freely rotate
.
Repeat the installation process with the remaining
latches.
4. Rotate all of the latches outward, and insert the SH
filter into the frame
.
The bulk of the filter should
be inserted through the frame, protruding out the
backside. Only the header of the filter should be
contacting the flange of the frame.
5. After the filter has been placed into the frame, grasp
the circular end of the latch and rotate it across the
corner of the filter
.
Push the end of the latch towards the filter, until the
latch catches beneath the knockout on the frame.
Repeat for the remaining latches.
6. The filter should now be securely installed into the
frame
(see Fig.2-103).
Fig. 2-103 – inStAllEd CARtRidgE FiltER
LD010148
Summary of Contents for YORK SOLUTION LD09624
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