Burnham ES2 manual Appendix C Gas Piping, Length W.c. Pressure Drop Feet

Page 36

APPENDIX C – Gas Piping

ASSURE GAS PIPING IS LEAK FREE AND OF PROPER SIZE and type for the

connected load.

SHUT OFF MAIN GAS SUPPLY prior to

Table C-3: Specific Gravity Correction Factors For

Natural Gas

Specific Correction Specific Correction

Gravity Factor Gravity Factor

installing or servicing boiler gas piping.

1.

Determine the boiler’s maximum gas

 

demand and minimum gas supply pressure

 

(printed on the boiler’s rating label) and the

 

demand of other gas appliances served by

 

the same gas meter.

2.

Ensure that gas piping, fittings, and gas

0.501.10

0.551.04

0.601.00

0.650.96

0.700.93

0.750.90

0.800.87

0.850.81

0.900.82

1.000.78

1.100.74

1.200.71

1.300.68

1.400.66

meter capacities can supply the maximum

gas demand of all appliances at pressures

above their minimum allowable gas

pressure. Tables C-1 and C-2 provide typical

capacities of gas pipes and fittings.

3. Derate the gas flow through pipes by

multiplying by a correction factor in Table

C-3 based on the specific gravity of the gas.

4. For materials or conditions other than those

listed above, refer to the National Fuel Gas

Code, NFPA54/ANSI Z223.1, or size the system using standard engineering methods acceptable to authority having jurisdiction.

USE PROPER THREAD COMPONENTS on all gas connectors.

USE THREAD (JOINT) COMPOUNDS (pipe dope) rated for liquefied petroleum

gas.

Table C-1: Maximum Capacity of Schedule 40 Pipe in Cubic Feet Per Hour (CFH)*

Length

 

0.3” w.c. Pressure Drop

 

 

0.5” w.c. Pressure Drop

 

(Feet)

½

¾

1

½

¾

1

10

132

278

520

1050

175

360

680

1400

20

92

190

350

730

120

250

465

950

30

73

152

285

590

97

200

375

770

40

63

130

245

500

82

170

320

660

50

56

115

215

440

73

151

285

580

60

50

105

195

400

66

138

260

530

70

46

96

180

370

61

125

240

490

80

43

90

170

350

57

118

220

460

90

40

84

160

320

53

110

205

430

100

38

79

150

305

50

103

195

400

*1 CFH of Natural Gas is approximately equal to 1000 BTU/hr; 1 CFH of LP is approximately equal to 2500 BTU/hr.

Table C-2: Equivalent Lengths (ft) Of Standard Pipe Fittings & Valves

Pipe

Gate

Globe

Angle

Swing

90°

45°

90° ‘T’, Flow

90° ‘T’, Flow

Size

Check

Elbow

Elbow

Through Run

Through Branch

 

 

 

½”

0

19

9

4

2

1

1

3

¾”

0

23

12

5

2

1

1

4

1”

1

29

15

7

3

1

2

5

1 ¼”

1

39

20

9

4

2

2

7

1 ½”

1

45

22

11

5

3

3

8

36

Image 36
Contents ES2 Page Whats in the crate? Specifications ES2 SeriesSpecifications Installation Boiler Quick-StartAppendices Unpack the Crate Position the BoilerProvide Combustion Air Connect VentingES2 Vent Connector Horizontal Length Restrictions ft Connect VentingConnect Gas Piping Connect Boiler Water PipingConnect Boiler Water Piping Description Burnham Part NumberConnect Electrical Wiring Using IQ Boiler Control Display Viewing the Operating Mode OptionsOperating Mode Options Status Code Displayed in STA ModeChanging the Adjustable Parameters More Information about Adjustable ParametersUsing the IQ Option Panel Adjustment Mode OptionsUsing the Optional LCD Display Kit Check for Gas and Water LeaksPerform Startup Checks and Adjustments Boiler restartsAnnual Maintenance Checklist Troubleshooting IQ Boiler Control Status Codes when Err is not displayedTroubleshooting IQ Boiler Control Error Codes when Err is flashingIQ Option Panel Display Shows ERR Display Status Boiler / Control ActionsRepair Parts List Repair Parts List Burner Orifices LP Gas 1.20mm IQ Boiler Control Jacket Vestibule Panel Supply Water Manifold Internal Wiring Figure IW-1 Wiring DiagramInternal Wiring Figure IW-2 Wiring SchematicFigure IW-3 Single Zone System with Domestic Hot Water Tank Figure IW-5 Multiple Zone System with Zone Valves Figure IW-7 Multiple Zone System with Zone Valve Panel Appendix a Combustion Air Combined appliance Input BTU/hrAppendix B Venting Figure B-1 Typical Atmospheric Vent Installation This page Intentionally Left Blank Appendix C Gas Piping Length W.c. Pressure Drop FeetAppendix C Gas Piping Appendix D System PipingAppendix D System Piping Hot Water Boilers, Non-CondensingFigure D-0 Piping Schematic Symbols Figure D-W1 Water Boiler, Series Loop Figure D-W3 Water Boiler, Tankless Coil, Two or More Zones Figure D-W5 Water Boiler, Indirect Water Heater Appendix E Filling the System and Checking for Leaks Confirm that the boiler and system have no water leaksAppendix F Adjusting Gas Input Rate Natural Gas BoilersAppendix F Adjusting Gas Input Rate LP/Propane Gas BoilersLeak Test Gas Piping Table F-1 Gas Flow Rate in Cu. Ft. / HrAppendix G Checking Draft and Combustion Appendix H iq control system IQ Control System OverviewIQ Boiler Control IQ Option PanelAppendix H IQ Control System IQ Display Kit EnviraCOM ThermostatsAppendix H IQ Control System System Parts List Additional Information ListFactory Mounted Components Optional ComponentsService Record Limited Warranty