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Bryant 313AAV User Manual

Page 18

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18

Table 5 – Air Delivery -- CFM (With Filter)*

UNIT SIZE

RETURN---AIR

SUPPLY

SPEED

EXTERNAL STATIC PRESSURE (In. wc)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1

045---08/

024045

Bottom or

Side(s)

5

1185

1145

1115

1075

1035

980

905

820

720

580

4

920

880

835

800

755

720

680

645

605

540

3

735

685

625

585

530

490

435

395

345

295

2

820

765

725

670

630

580

545

490

455

405

1

650

595

535

490

430

390

330

280

235

--- ---

070---16 /

048070

Bottom or

Side(s)

5

1625

1585

1535

1495

1460

1415

1365

1295

1220

1125

4

1405

1360

1320

1280

1240

1195

1155

1115

1070

1030

3

1240

1200

1155

1110

1065

1020

975

935

895

850

2

1190

1140

1095

1050

1000

955

915

870

830

790

1

1035

985

930

885

835

785

745

695

650

600

090---16 /

048090

Bottom or

Side(s)

5

1845

1800

1755

1710

1665

1595

1500

1400

1275

1105

4

1590

1545

1500

1455

1410

1365

1315

1270

1180

1000

3

1365

1320

1270

1215

1170

1125

1070

1025

955

900

2

1225

1160

1110

1060

1010

950

895

830

770

710

1

1100

1030

960

875

805

730

645

570

505

425

110---20 /

060110

Bottom or

Side(s)

5

2255

2205

2150

2100

2040

1985

1920

1835

1735

1615

4

1600

1525

1465

1400

1335

1275

1210

1150

1080

1015

3

1945

1890

1830

1770

1715

1655

1600

1545

1480

1430

2

1420

1340

1280

1200

1140

1065

1005

925

865

790

1

1280

1205

1140

1055

990

910

840

760

695

630

135---20 /

060135

Bottom or

Side(s)

5

2295

2240

2185

2125

2070

2005

1925

1805

1670

1545

4

1725

1660

1605

1545

1460

1395

1340

1285

1230

1170

3

1910

1865

1800

1745

1685

1610

1545

1485

1435

1380

2

1630

1575

1510

1435

1365

1300

1245

1185

1130

1065

1

1430

1355

1285

1200

1125

1075

1015

945

855

800

*A filter is required for each return---air inlet. Airflow performance included 3/4---in. (19 mm) washable filter media such as contained in factory---authorized

accessory filter rack. To determine airflow performance without this filter, assume an additional 0.1 in. wc available external static pressure.

--- --- Indicates unstable operating conditions.

Table 6 – Maximum Capacity of Pipe*

NOMINAL IRON

PIPE

INTERNAL

DIAMETER

LENGTH OF PIPE --- FT. (M)

SIZE IN. (mm)

In. (mm)

10

20

30

40

50

1/2 (13)

0.622 (16)

175 (53)

120 (37)

97 (30)

82 (25)

73 (22)

3/4 (19)

0.824 (21)

360 (110)

250 (76)

200 (61)

170 (52)

151 (46)

1 (25)

1.049 (27)

680 (207)

465 (142)

375 (114)

320 (98)

285 (87)

1---1/4 (32)

1.380 (35)

1400 (427)

950 (290)

770 (235)

660 (201)

580 (177)

1---1/2 (38)

1.610 (41)

2100 (640)

1460 (445)

1180 (360)

990 (301)

900 (274)

* Cubic ft. of natural gas per hr for gas pressures of 0.5 psig (14---in. wc) or less and a pressure drop of 0.5---in wc (based on a 0.60 specific gravity

gas). Ref: Chapter 6 ANSI Z223---2006/NFPA 54---2006.

Piping should be pressure and leak tested in accordance with
NFGC in the United States or CAN/CSA--B149.1--05 in Canada,

local, and national plumbing and gas codes before the furnace has
been connected. After all connections have been made, purge

lines and check for leakage at furnace prior to operating furnace.
If pressure exceeds 0.5 psig (14--in. wc), gas supply pipe must be
disconnected from furnace and capped before and during supply

pipe pressure test. If test pressure is equal to or less than 0.5 psig
(14--in. wc), turn off electric shutoff switch located on furnace gas

control valve and accessible manual equipment shutoff valve

before and during supply pipe pressure test. After all connections
have been made, purge lines and check for leakage at furnace

prior to operating furnace.
The gas supply pressure shall be within the maximum and

minimum inlet supply pressures marked on the rating plate with

the furnace burners ON and OFF.

313A