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Pipe Capacity For Natural Gas

Nominal

Equivalent

Iron Pipe

Internal

Pipe Length

Size

Diameter

90Þ Elbow

Tee

Inches

Inches

Feet

Feet

20

40

60

80

100

150

200

1.25

1.38

3.50

6.90

950

1.50

1.61

4.00

8.00

1460

990

810

2.00

2.07

5.20

10.30

2750

1900

1520

1300

1150

950

800

2.50

2.47

6.20

12.30

4350

3000

2400

2050

1850

1500

1280

3.00

3.07

7.70

15.30

7700

5300

4300

3700

3250

2650

22780

4.00

4.03

10.10

20.20

15800

10900

8800

7500

6700

5500

4600

Installing Gas Piping

Figure 4

NOTE

See the above chart for required pipe
size, based on overall Iength of pipe
from meter plus equivalent length of all
fittings. Approximate sizing may be
based on 1,000 BTU for 1 cubic foot of
natural gas.

1. Gas Piping should be installed in
accordance with National Fuel Gas
Code, ANSI Z223 1 1991 or latest
addenda and any other local codes
which may apply. 

In Canada gas installations must be in
accordance with the current CAN/CGA
B149.1 and .2 and/or local codes.

2. The pipe and the fittings used should
be new and free of dirt or other deposits
Piping must be of the proper size to
ensure adequate gas supply.

3. Gas pressure to inlet of gas train
should be 7" WC. for natural gas and
11" WC. for propane. Connect gas
supply line to the open end of the tee
on which the drip leg is installed.

4. When making gas piping joints, use
a sealing compound resistant to the
action of liquefied petroleum gases. Do
not use teflon tape on gas line threads.

5. After gas piping is completed and
before wiring installation is started,
carefully check all piping connections,
(factory and field), for gas leaks. Use a
soap and water solution.

CAUTION

Some soaps used for leak testing are
corrosive to certain types of metals. Rinse
all piping thoroughly with clean water
after leak check has been completed.

6. The water heater must be
disconnected at the water heater shut
off valve from the gas supply piping
system during any pressure testing of
the system at pressure in excess of 

1

/

2

psig (14" WC)(3.5 kPa).

7.The water heater must be isolated
from the gas supply piping system by
closing its individual manual shut off
valve during any pressure testing of the
gas supply system at test pressures
equal or less than 1/2psi (3.5kPa).

8. Gas vents to outdoor air must be
provided for the pressure regulator and
gas pressure switches.  Restricting
orifices or bleed orifices should not be
used at anytime.

WARNING

Do not use matches, candles, flame or
other sources of ignition to check for
gas Ieaks.

NOTE

The vent line connection on the gas
pressure regulator and the low and high
gas pressure switches must be piped
to outdoor air by installer in accordance
with the National Fuel Gas Code, ANSI
Z223- 1-1991 or latest addenda.

In Canada gas installations must be in
accordance with the current CAN/CGA
B149.1 and .2 and/or local codes.

Installation

Figure 4

Maximum Capacity in Cubic Feet of Natural Gas Per Hour

Pressure Drop of 0.5" W.C.

Equivalent Length of Pipe in Feet

13-PDWH

CANADA

US

Содержание PDWH1000

Страница 1: ...Fulton Gas Fired Pulse Commercial Water Heaters Installation Operation And Maintenance Manual December 2009 PDWH750 PDWH1000...

Страница 2: ...ney Needed The pulse combustion system is self venting through an AL29 4C stainless steel vent Sidewall venting does not require a draft inducing fan Highest Efficiency Possible Water heater efficienc...

Страница 3: ...Contents 1 2 3 4 5 Section Safety Warnings and Precautions 3 Installation 7 Operation 25 Maintenance 33 Parts and Warranty 37 1 PDWH...

Страница 4: ...u Smell Gas Do not try to light any appliance Do not touch any electric switch do not use any phone in your building Immediately call your gas supplier call the fire department C Use only your hand to...

Страница 5: ...Section 1 Safety Warnings and Precautions 3 PDWH...

Страница 6: ...he concrete floor due to the transfer of vibration In the box of trim shipped with each pulse water heater Fulton supplies 4 elastomer coated fiberglass cubes used for vibration isolation For all non...

Страница 7: ...ol thermal expansion Contact the water supplier or plumbing contractor on how to control this situation WARNING Toxic chemicals such as used for treatment of boilers or non potable water heating appli...

Страница 8: ...r 4 This water heater is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand 5 Turn gas cock knob clockwise to OFF one quarter turn 6 Wait fiv...

Страница 9: ...Section Installation 7 PDWH 2...

Страница 10: ...da gas installations must be in accordance with the current CAN CGA B149 1 and 2 and or local codes Electrical installations must be installed in accordance with the current CSA C22 1 Canadian Electri...

Страница 11: ...um 0 4 35 Maximum 4 Number of 90 Degree Model No Type Diameter In Length Ft Elbows PDWH750 Stainless Steel 4 10 Minimum 0 4 35 Maximum 4 PDWH1000 Stainless Steel 4 10 Minimum 0 4 35 Maximum 4 Figure 1...

Страница 12: ...through the bracket and thread into the top of the leveling bolt and tighten finger tight 5 Lower the water heater evenly onto the spring isolators Do not overload any one isolator and take care not t...

Страница 13: ...water heater is supplied with a pressure temperature gauge A nipple is installed in the water heater water outlet A tee is installed on the nipple In the side port of the tee the temperature gauge is...

Страница 14: ...t supplied with the water heater Complete condensate liquid drainer kits are available from Fulton 1 All piping must be galvanized PVC or stainless steel and should be free of leaks 2 Make sure either...

Страница 15: ...um gases Do not use teflon tape on gas line threads 5 After gas piping is completed and before wiring installation is started carefully check all piping connections factory and field for gas leaks Use...

Страница 16: ...ox WARNING Do not attempt to start water heater to test wiring before filling and purging the water heater A dry fire will seriously damage the water heater and may result in property damage or person...

Страница 17: ...the circuit 6 120V power is input to the automatic control relay RM7865A 7 Purge blower is energized for 35 seconds 8 Purge fan switch is made signaling the control to proceed 9 Spark plug is energize...

Страница 18: ...C pipe to desired Iength Step 2 Chamfer end of pipe removing any ridges or rough edges If end is not chamfered the edge of the pipe may remove cement from the fitting socket and result in a leaking jo...

Страница 19: ...cial gas vents The gas vent installer should be familiar with these Federal Codes as well as local codes and regulations The procedure for adhesive joining stainless steel pipe and fittings follows St...

Страница 20: ...space clearances should be observed to joists studs subfloors plywood drywall or plaster enclosures insulating sheathing rafters roofing and any other material classed as combustible The required mini...

Страница 21: ...ttach guys or braces to the vent pipe Vertical Vent Flashing and Installation The roof opening should be located and sized such that the vent is vertical and has the required air space clearance The r...

Страница 22: ...ch of the vent and provide sealing Use adhesive material to seal around the vent on both sides of the wall When penetrating a combustible wall a wall thimble must be used See next page Figure 14 for i...

Страница 23: ...exhaust outlet must be installed 2ft minimum above and downwind from air supply inlet to prevent exhaust recirculation Under certain wind conditions some building materials may be affected by flue pr...

Страница 24: ...m may be considered water tight g When purging is completed make sure the following are open shutoff valve in cold water fill line and shutoff valve in return line h Make sure the following are closed...

Страница 25: ...We recommend to those personnel designing systems with a PDWH incorporate a factor of safety to ensure that the temperature differential will not be greater than 100 degrees F at any operating condit...

Страница 26: ...the water heater Measure Gas Flow Rate Turn off the water heater and the manual gas shutoff valve Remove manifold down stream pressure test plug from the 90 degree elbow WARNING HOTTER WATER CAN SCALD...

Страница 27: ...preferred regulator for this application is the Fisher S Series with lock up capability 4 Consult your Authorized Fulton Representative for selection This recommendation is made to avoid the regulator...

Страница 28: ...PAGE INTENTIONALLY LEFT BLANK...

Страница 29: ...3 Operation Section 26 PDWH...

Страница 30: ...ter heater 3 Turn gas cock knob clockwise to OFF Figure 18 This gas cock knob is also the emer gency shut off device This water heater is equipped with an ignition device which automatically lights th...

Страница 31: ...the tolerances are not met a hold condition will be initiated and will be displayed on the optional display module for at least five seconds When the tolerances are met the INITIATE sequence will res...

Страница 32: ...the main Flame Stabilization Period If the flame signal is not proven or the Purge Fan switch is on the RM7865 will recycle to PREPURGE if the selected number of retry attempts is not exceeded If the...

Страница 33: ...alues have been confirmed or entered hold the SET ENT key until the Setpoint Temperature appears in the PV Display 8 Repeat the last step until the control is in Operator mode The PV Display will show...

Страница 34: ...ntrol Program for Pulse Modulating Water Heaters Input Output Menu Functional Parameters SYMBOL DESCRIPTION DEFAULT VALUE FULTON VALUE CUSTOMER VALUE AL1 Alarm 1 Type 1 4 AL2 Alarm 2 Type 2 off AL3 Al...

Страница 35: ...eater Disconnect off off HC1 Heater Disconnect off off HC2 Heater Disconnect off off ORB On Off Rate Detection eus 1 0 0 ORH On Off Rate Upper Limit 100 100 ORL On Off Rate Lower Limit 0 0 OR On Off R...

Страница 36: ...low fire and 100 represents high fire If you are unable to reach 0 you will need to make adjustments on the gas valve to either increase or decrease fuel input The exhaust butterfly valve may also nee...

Страница 37: ...Section 4 Maintenance 34 PDWH...

Страница 38: ...intake and exhaust vent terminal and make sure they are free of dirt or any foreign matter which may block the terminals Check air intake and exhaust vent outlet for any blockage or restrictions Chec...

Страница 39: ...the operating temperature control is set higher than temperature of the water heater water Loose Tubing Check to see if the copper tubing on the air valve housing is securely connected Flame Failure P...

Страница 40: ...that the Airflow Interlock switches are functioning properly and that their contacts are free from contaminants 4 Reset and sequence the 7800 to Prepurge Measure the voltage between terminal 7 and G...

Страница 41: ...Section 5 Parts and Warranty 38 PDWH...

Страница 42: ...PAGE INTENTIONALLY LEFT BLANK...

Страница 43: ...30 000201 Pres Temp Gauge 0 320 0F 0 75PSIG x x 2 30 000203 Pres Temp Gauge 0 3200F 0 200PSIG x x 2 30 000445 Purge blower motor fan x x 2 40 000271 RM7865A Programmer x x 2 40 001010 RM7865B Programm...

Страница 44: ...spray 4 oz x x 4 23 000016 Paint Tech Tan quart x x 2 35 000799 PVC Air intake adaptor 4 x x 5 10 002765 4 S S muffler intake x x 5 10 002755 4 S S muffler exhaust x x 2 35 000059 4 flex connector in...

Страница 45: ...ation 7490GC 2 35 000986 16 x 16 cover plate 7473GC 2 35 000971 3 Rain cap 7300GC 2 35 000811 3 Pulse adapter 7301FUL 2 35 000972 3 x 6 vent 7301GC 2 35 000973 3 x 12 vent 7302GC 2 35 000974 3 x 18 ve...

Страница 46: ...PAGE INTENTIONALLY LEFT BLANK 42 PDWH...

Страница 47: ...UHSDLU RU UHSODFH 2 IDFWRU DQ SDUW RI WKH HTXLSPHQW RI RXU PDQXIDFWXUH WKDW LV IRXQG WR EH GHIHFWLYH LQ ZRUNPDQVKLS RU PDWHULDO ZLWKLQ PRQWKV RI VKLSPHQW IURP WKH IDFWRU RU PRQWKV IURP VWDUW XS ZKLFKH...

Страница 48: ...PAGE INTENTIONALLY LEFT BLANK...

Страница 49: ...PAGE INTENTIONALLY LEFT BLANK...

Страница 50: ...45 345 Swiss Registration Numbers 119122 and 119243 SwdeishRegistration Numbers 51873 and 51874 German Patent Number M9104923 7 Benelux Registration Numbers 21548 01 02 03 04 and 21548 05 06 French Re...

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