Honeywell 11255 manual Guide Specifications, Flanders - Foremost in Air Filtration, Notes

	Operating	Nominal Size	500 fpm		Media	Weight
Efficiency	o		Rating		Area	Each
	Limit F	H x W x D (inch)
			cfm	pd	(sq. ft.)	(lbs)
	750	24 x 24 x 12	2000	.35	140	26
60-65%		24 x 12 x 12	1000		69	21
	900	24 x 24 x 12	2000	.30	175	28
		24 x 12 x 12	1000		90	22
	750	24 x 24 x 12	2000	.55	140	26
80-85%		24 x 12 x 12	1000		69	21
	900	24 x 24 x 12	2000	.50	175	28
		24 x 12 x 12	1000		90	22
	750	24 x 24 x 12	2000	.60	140	26
90-95%		24 x 12 x 12	1000		69	21
	900	24 x 24 x 12	2000	.55	175	28
		24 x 12 x 12	1000		90	22

Notes:

1.PD represents clean pressure drop in inchw.g. The recommended fin l pressure drop is 2.5 inch w.g.

2.Operation down to zero velocity is satisfactory for all models.

3.Efficiencies are average and are based on ASHRAE Standard 52.1 dust spot test methods. Performance val- ues stated may be averages typical of the products listed. Contact factory for actual performance test reports on specific products.

		Guide Specifications
1.0	General		2.3Expanded metal aluminized steel faceguards shall
1.1High		temperature rigid filt rs shall be	be installed on the air entering and air leaving
			sides.
	PrecisionCell HT separator type as manufactured
	by Flanders.		2.4A 1/2” “T” strap shall be installed on the down-
1.2Filter sizes and tempera ure ranges shall be as			stream side and 1/2” horizontal strap on the air
			entering side.
	scheduled on the draw ngs.
2.0	Filter Construction		3.0 Performance
2.1Filters shall be constructed by pleating a continu-			3.1Initial and final resistance shall not exceed the
			scheduled values.
	ous sheet of wet-laid micro-fine glass media into
	closely spaced pleats with hemmed-edge corru-		3.2Media area shall equal that of the scheduled high
	gat d aluminum separators.		temperature filter.
2.2The filt		r pack shall be sealed into a 24 ga.	3.3The manufacturer shall guarantee performance as
	aluminized steel frame with fire-retardant sealant.		outlined in section 7.4 of ARI Standard 800.

Flanders - Foremost in Air Filtration

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