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S
XT I
, O
ERIES
NSTALLATION
PERATION AND
21.6 Optional Equipment
Dampers
Filters
74
S
M
ERVICE
ANUAL
Check linkage when applicable and tighten set screws as required. All moving
parts of dampers should be cleaned and then thoroughly lubricated with a
light molybdenum oil in aerosol can. Dampers furnished with stainless steel
side seals should also have the seals lubricated generously. Dampers should
then be manually operated several times until linkages and blades operate
freely. Reconnect linkages and check dampers for proper operation.
See Page 30, Section 12.
Filters should be checked for dirt restriction on a monthly basis (or as
required). Replace filters with filters of equal specification when they appear
dirty.
NOTE: When using Weather-Rite LLC supplied disposable polyester filters,
they must be inserted with the white media side facing the inlet of filter sec-
tion. When using Weather-Rite LLC supplied permanent aluminum mesh or
disposable filters, they must be inserted with the arrow on the filter pointing in
the direction of airflow (toward the air handler).
See inlet hood or filter section for filters. See Page 21, Section 10.1 and See
Page 23, Section 11
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