Honeywell 11255 manual Inch Cfm, Filt Construction

Nominal	Nominal Size	300 fpm		500 fpm			Media
Depth	H x W x D						Area
(inch)	(inch)	cfm	PD	cfm	PD		sq. ft.
	10 x 10 x 1	210	0.15	347	0.38	1.6
	10 x 20 x 1	417	0.15	694	0.38	3.2
	12 x 20 x 1	500	0.15	833	0.38	3.8
	12 x 24 x 1	600	0.15	1000	0.38	4.5
	14 x 20 x 1	583	0.15	972	0.38	4.5
	14 x 25 x 1	729	0.15	1215	0.38	5.3
1	15 x 20 x 1	625	0.15	1042	0.38	4.8
	16 x 20 x 1	667	0.15	1110	0.38	4.8
	16 x 25 x 1	834	0.15	1390	0.38	6.1
	20 x 20 x 1	834	0.15	1390	0.38	6.1
	18 x 24 x 1	900	0.15	1500	0.38	6.9
	18 x 25 x 1	945	0.15	1575	0.38	7.2
	20 x 24 x 1	1000	0.15	1667	0.38	7.7
	20 x 25 x 1	1042	0.15	1735	0.38	7.6
	24 x 24 x 1	1200	0.15	2000	0.38	8.9
	10 x 20 x 2	417	0.13	694	0.29	6.4
	12 x 20 x 2	500	0.13	833	0.29	7.7
	12 x 24 x 2	600	0.13	1000	0.29	8.7
	14 x 20 x 2	583	0.13	972	0.29	8.9
	14 x 25 x 2	729	0.13	1215	0.29	11.2
	15 x 20 x 2	625	0.13	1042	0.29	9.6
	16 x 20 x 2	667	0.13	1110	0.29	10.0
2	16 x 25 x 2	834	0.13	1390	0.29	12.4
	18 x 24 x 2	900	0.13	1500	0.29	13.8
	18 x 25 x 2	938	0.13	1563	0.29	14.4
	20 x 20 x 2	834	0.13	1390	0.29	12.4
	20 x 24 x 2	1000	0.13	1667	0.29	15.3
	20 x 25 x 2	1042	0.13	1735	0.29	15.5
	24 x 24 x 2	1200	0.13	2000	0.29	17.8
	25 x 25 x 2	1300	0.13	2170	0.29	19.2
Depth	Nominal Size	300 fpm		625 fpm			Media
	H x W x D (inch)						Area
		cfm	PD	cfm	PD
							(sq. ft)
	12 x 24 x 4	600	0.10	1250	0.35	14.0
	16 x 20 x 4	667	0.10	1390	0.35	15.5
	16 x 25 x 4	834	0.10	1735	0.35	19.6
4	18 x 24 x 4	900	0.10	1500	0.35	21.9
	20 x 20 x 4	834	0.10	1735	0.35	19.6
	20 x 24 x 4	1000	0.10	1667	0.35	24.3
	20 x 25 x 4	1042	0.10	2170	0.35	24.0
	24 x 24 x 4	1200	0.10	2500	0.35	28.0
	25 x 29 x 4	1500	0.10	3100	0.35	34.0
	28 x 30 x 4	1680	0.10	3500	0.35	39.0

Performance values stated may be averages typical of the products listed.

Contact factory for actual performance test reports on specific products.

Guide Specifications

1.0 General			3.0 Performance
1.1	High velocity Pre Pleat HV extended surface		3.1 Initial and final resistance shall not exceed the
	pleated filter as manufactured by Flanders.		scheduled values.
1.2 Filter sizes and capacities shall be as scheduled			3.2 Media area must be equal to that of the specified
	on the drawings.		filter.
2.0 Filt		r Construction	3.3 The minimum efficiency shall be a MERV 8 rating
			per ASHRAE Standard 52.2 and 50% dust spot
2.1 Filt		r m dia shall be manufactured of 100% elec-
			efficiency per ASHRAE Standard 52.1.
	trostatically charged synthetic fibers and bonded		3.4 The manufacturer shall guarantee performance
	to a corrosion-resistant expanded metal backing.
			as stated in the literature within tolerances as out-
2.2 T e frame shall be moisture resistant
			lined in Section 7.4 of ARI Standard 850.
	board with diagonal and horizontal support mem-
	bers on the upstream and downstream sides.

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