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The filter and hvac store, Guide specifications – Honeywell 11255 User Manual

Page 58

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58

Operating

Nominal Size

500 fpm

Media

Weight

Efficiency

Limit

o

F

H x W x D (inch)

Rating

Area

Each

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 final 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.

1.0 General

1.1 High

temperature

rigid

filters

shall

be

PrecisionCell HT separator type as manufactured
by Flanders.

1.2 Filter sizes and temperature ranges shall be as

scheduled on the drawings.

2.0 Filter Construction

2.1 Filters shall be constructed by pleating a continu-

ous sheet of wet-laid micro-fine glass media into
closely spaced pleats with hemmed-edge corru-
gated aluminum separators.

2.2 The filter pack shall be sealed into a 24 ga.

aluminized steel frame with fire-retardant sealant.

2.3 Expanded metal aluminized steel faceguards shall

be installed on the air entering and air leaving
sides.

2.4 A 1/2” “T” strap shall be installed on the down-

stream side and 1/2” horizontal strap on the air
entering side.

3.0 Performance

3.1 Initial and final resistance shall not exceed the

scheduled values.

3.2 Media area shall equal that of the scheduled high

temperature filter.

3.3 The manufacturer shall guarantee performance as

outlined in section 7.4 of ARI Standard 800.

Guide Specifications

Flanders - Foremost in Air Filtration

Corporate Headquarters, St. Petersburg, FL

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