Table 15 - Orifice Size and Manifold Pressure for Gas Input Rate (cont.)

(Tabulated Data Based on 22,000 Btuh High-Heat/14,500 Btuh for Low-Heat per Burner, Derated 4% for Each 1000 Ft Above Sea

Level)

 

 

 

AVG. GAS

 

 

 

SPECIFIC GRAVITY OF NATURAL GAS

 

 

 

 

 

 

HEAT VALUE

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE RANGE

 

0.58

 

0.60

 

0.62

 

0.64

AT ALTITUDE

 

 

 

 

 

(FT)

 

 

 

 

 

 

 

 

 

 

 

 

 

(BTUH/CU

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

 

 

 

 

 

 

 

 

 

 

FT)

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

 

 

 

675

43

 

3.4/1.5

43

 

3.5/1.5

43

 

3.6/1.6

43

 

3.7/1.6

 

 

 

700

44

 

3.6/1.6

43

 

3.3/1.4

43

 

3.4/1.5

43

 

3.5/1.5

 

 

 

725

44

 

3.4/1.5

44

 

3.5/1.5

44

 

3.6/1.6

43

 

3.2/1.4

U.S.A.

 

6001 to

750

45

 

3.8/1.7

44

 

3.3/1.4

44

 

3.4/1.5

44

 

3.5/1.5

Only

 

7000

775

46

 

3.7/1.6

45

 

3.7/1.6

45

 

3.8/1.7

44

 

3.2/1.4

 

 

 

800

46

 

3.5/1.5

46

 

3.6/1.6

46

 

3.8/1.6

45

 

3.7/1.6

 

 

 

825

47

 

3.7/1.6

46

 

3.4/1.5

46

 

3.5/1.5

46

 

3.6/1.6

 

 

 

850

47

 

3.5/1.5

47

 

3.6/1.6

47

 

3.8/1.6

46

 

3.4/1.5

 

 

 

AVG. GAS

 

 

 

SPECIFIC GRAVITY OF NATURAL GAS

 

 

 

 

 

 

HEAT VALUE

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE RANGE

 

0.58

 

0.60

 

0.62

 

0.64

AT ALTITUDE

 

 

 

 

 

(FT)

 

 

 

 

 

 

 

 

 

 

 

 

 

(BTUH/CU

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

 

 

 

 

 

 

 

 

 

 

FT)

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

 

 

 

650

44

 

3.6/1.6

43

 

3.2/1.4

43

 

3.4/1.5

43

 

3.5/1.5

 

 

 

675

44

 

3.3/1.5

44

 

3.5/1.5

44

 

3.6/1.6

43

 

3.2/1.4

 

 

 

700

45

 

3.8/1.6

44

 

3.2/1.4

44

 

3.3/1.4

44

 

3.4/1.5

U.S.A.

 

7001 to

725

46

 

3.7/1.6

46

 

3.8/1.7

45

 

3.7/1.6

44

 

3.2/1.4

Only

 

8000

750

46

 

3.4/1.5

46

 

3.6/1.5

46

 

3.7/1.6

46

 

3.8/1.6

 

 

 

775

47

 

3.6/1.6

47

 

3.8/1.6

46

 

3.4/1.5

46

 

3.6/1.5

 

 

 

800

47

 

3.4/1.5

47

 

3.5/1.5

47

 

3.7/1.6

47

 

3.8/1.6

 

 

 

825

48

 

3.7/1.6

48

 

3.8/1.6

47

 

3.4/1.5

47

 

3.6/1.5

 

 

 

AVG. GAS

 

 

 

SPECIFIC GRAVITY OF NATURAL GAS

 

 

 

 

 

 

HEAT VALUE

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE RANGE

 

0.58

 

0.60

 

0.62

 

0.64

AT ALTITUDE

 

 

 

 

 

(FT)

 

 

 

 

 

 

 

 

 

 

 

 

 

(BTUH/CU

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

 

 

 

 

 

 

 

 

 

 

FT)

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

 

 

 

625

44

 

3.3/1.5

44

 

3.5/1.5

44

 

3.6/1.6

43

 

3.2/1.4

 

 

 

650

45

 

3.7/1.6

44

 

3.2/1.4

44

 

3.3/1.4

44

 

3.4/1.5

U.S.A.

 

8001 to

675

46

 

3.6/1.6

46

 

3.8/1.6

45

 

3.7/1.6

45

 

3.8/1.7

 

700

47

 

3.8/1.7

46

 

3.5/1.5

46

 

3.6/1.6

46

 

3.7/1.6

Only

 

9000

 

 

 

 

 

725

47

 

3.6/1.6

47

 

3.7/1.6

47

 

3.8/1.7

46

 

3.5/1.5

 

 

 

 

 

 

 

 

 

 

750

48

 

3.8/1.7

47

 

3.5/1.5

47

 

3.6/1.6

47

 

3.7/1.6

 

 

 

775

48

 

3.6/1.5

48

 

3.7/1.6

48

 

3.8/1.7

47

 

3.5/1.5

 

 

 

AVG. GAS

 

 

 

SPECIFIC GRAVITY OF NATURAL GAS

 

 

 

 

 

 

HEAT VALUE

 

 

 

 

 

 

 

 

 

 

 

 

ALTITUDE RANGE

 

0.58

 

0.60

 

0.62

 

0.64

AT ALTITUDE

 

 

 

 

 

(FT)

 

 

 

 

 

 

 

 

 

 

 

 

 

(BTUH/CU

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

Orifice

 

Manifold

 

 

 

 

 

 

 

 

 

 

FT)

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

No.

 

Pressure

 

 

 

600

45

3.7/1.6

45

3.8/1.7

44

3.3/1.4

44

3.4/1.5

 

 

 

625

46

3.6/1.6

46

3.7/1.6

46

3.8/1.7

45

3.8/1.6

U.S.A.

 

9001 to

650

47

3.8/1.6

46

3.4/1.5

46

3.6/1.5

46

3.7/1.6

Only

10,000

675

47

3.5/1.5

47

3.6/1.6

47

3.7/1.6

46

3.4/1.5

 

 

 

700

48

3.7/1.6

48

3.8/1.7

47

3.5/1.5

47

3.6/1.6

 

 

 

725

48

3.5/1.5

48

3.6/1.6

48

3.7/1.6

48

3.8/1.7

* Orifice numbers 43 are factory installed

312A

43

Page 43
Image 43
Bryant 120 instruction manual 6001 to

120 specifications

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