Honeywell 11255 - Manual (Page 60)

60 60
Nominal Nominal 250 fpm 375 fpm 500 fpm 625 fpm Media Weight
Depth Efficiency Size Area Each
(inch) HxWxD cfm pd cfm pd cfm pd cfm pd (sq.ft.) (lbs.)
(inch)
24x24x12 1000 1500 2000 2500 140 26
12 65% .15 .25 .35 .40
24x12x12 500 750 1000 1250 69 21
24x24x12 1000 1500 2000 2500 140 30
12 95% .25 .45 .65 .78
24x12x12 500 750 100 1250 69 25
Notes:
1. PD represents clean pressure drop in inchw.g. The recommended final pressure drop is 2.5 inch w.g.
2. Operation down to zero velocity is satisfactory for all models.
3. Performance tolerances conform to section 7.4 of ARI Standard 850.
4. Performance values stated may be averages typical of the products listed. Contact factory for actual performance
test reports on specific products.
1.0 General
1.1 Medium and high efficiency gas turbine rigid fil-
ters shall be PrecisionCell GT extended media
separator type filters as manufactured by
Flanders.
1.2 Filter sizes, efficiencies and capacities shall be
as scheduled on the drawings.
2.0 Filter Construction
2.1 Filters shall be constructed by pleating a contin-
uous sheet of moisture-resistant dual layer, wet-
laid micro-fine glass media into closely spaced
pleats with hemmed-edge corrugated aluminum
separators.
2.2 The filter pack shall be compression sealed into
a 24 ga. corrosion-resistant steel frame.
2.3 The enclosing frame shall be assembled in a
rigid manner and shall incorporate a single or
double header as required by job conditions.
2.4 corrosion-resistant steel expanded metal face-
guards shall be installed on the air entering and
leaving sides.
2.5 1/2” corrosion-resistant steel “T” straps shall be
installed on the air leaving side and horizontal
strap on air entering side.
2.6 Filters shall be UL 900 Class 1 listed.
3.0 Performance
3.1 Initial and final resistance shall not exceed the
scheduled values.
3.2 Media area must equal or exceed that of the
specified filter.
3.3 The average efficiency shall be as determined
by the ASHRAE Standard 52.1 test methods.
3.4 The manufacturer shall guarantee performance
as stated in the literature within tolerances as
outlined in section 7.4 of ARI Standard 800.
Guide Specifications
Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL
the filter and hvac store