Honeywell 11255 Performance Data - Capacities and Dimensions, Guide Specifications, Drawing Notes

3” depth,

Performance Data - Capacities and Dimensions

Particle		Actual		Cfm Capacity at
	Model Number	Dimensions		Gross Face Velocity,
Size		(inch)			fpm
Efficiency		H	W	70	90	110
99.99% on	AP493-2424*	24	24	280	360	440
	AP493-2448*	24	48	560	720	880
0.30 Fm
	Clean Filter Resistance (inch			.35	.45	.55
99.99% on	AP591-2424*	24	24	280	360	440
	AP591-2448*	24	48	560	720	880
0.12 Fm
	Clean Filter Resistance (inch			.50	.65	.80

*Insert gasket designator: D, U, B or N. See Note 5.

W

H

.75” Flange (typical)

Drawing Notes:

1. Physical Data

Media: Moisture-resistant fiberglass

Filter Construction: 2.1” (53 mm) thick separatorless minipleat

Filter Frame: Clearcoat-anodized extruded aluminum

Media Divider: Extruded aluminum channel

2.Add 0.25” to the 3” depth for each gasket.

3.Media dividers are furnished on air filters over 36” in width. Filters over 24” in height are also furnished with media dividers and media pleats that are paral- lel to the width.

Performance Data Notes:

1.Filters are sc n-tested for leaks after assembly and are certified to be 99.99% on 0.30 Fm or 99.99% on

.012 Fm particles.Performance meets the require- ments of IEST RP-1 for Type C or F filters.

2.Dimensional tolerances are +0” -.13”on height and widt , + 0.6” on depth and +.13” on diagonal dimen- sions.

3.Maximum operating conditions: 200 degrees F, 100% RH.

4.Filters are designed to UL 900 Class 2 requirements.

5.Gasket location: Suffix D denotes a downstream gas- ket. Use suffix U for upstream, B for both upstream and downstream gasketing and N if no gaskets are required.

Guide Specifications

1.0 General			2.3 Extruded aluminum media dividers shall be pro-
1.1 Minipleat HEPA/ULPA filters shall be Alpha Panel			vided on filters over 36” wide and 24” in height.
Model AP493 or AP591 as manufactured by			2.4 Furnish 0.25” thick x 0.75” wide closed cell
Flanders.			neoprene gaskets on the face flanges when
1.2 Filter sizes and capaciti	s shall be as scheduled		required.
on the drawings.			3.0 Performance
1.3 Filter construction shall	m	UL 900 Class 2
			3.1 Particle size efficiency shall be certified to be not
requirements.
			less than 99.99% on 0.30 micron or 99.99% on
2.0 Construction			0.12 micron. Each filter is scan tested with auto-
			mated laser equipment. Filters shall meet the
2.1 The filter pack shall be 2.1” (53 mm) thick and
			requirements of IEST RP-1 for Type C or F filters.
shall consist of moisture-resistant microfine fiber-
			3.2 Initial resistance shall not exceed the scheduled
glass co taining a water-repellant binder. The
			values.
media shall be formed into closely spaced pleats
and stabiliz d with polyurethane bead separa-			3.3 Filters shall be capable of operating up to 150 fpm
tors.			face velocity.

2.2 The filter pack shall be urethane sealed in a clearcoat-anodized extruded aluminum frame 3”deep.

Flanders - Foremost in Air Filtration

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