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Installation

17-PDWH

Exhaust Vent Piping
Installation
Preparation

NOTE: A Fulton PDWH water heater
should not be connected to a common
venting system with other types of gas
appliances.

The water heater is equipped with an
exhaust vent connection located at the
rear of the water heater. (Figure 6)  For
Models PDWH750 & PDWH1000  the
connections are 4" NPT threaded
female fittings. 

The exhaust line must be sloped
down toward the unit with a pitch
of at least 

1

/

4

" per foot.

Failure to

do so can result in a condensate
pocket which can result in an
inoperative water heater.  There must
be no low spots in the exhaust pipe, as
this can also result in a condensate
pocket. A high spot is acceptable,
provided the pitch from the high spot is
maintained back to the water heater to
the outside point of the exhaust. 

In

supporting  piping, or routing it
through a rafter or wall, always use
vibration eliminating hangers

around

the piping to prevent transmission of
pulsations. Always avoid rigid
connections between piping and
structural members of the building.  Flue
exhaust pipes and fittings for all models
shall be stainless steel. The stainless
steel shall be UL temperature rated at
minimum air clearance to combustibles.
At 480° F temperature rating, a 5"
minimum air space clearance to
combustibles is required.  Fulton pulse
combustion hydronic heating water
heaters require a special venting
system. Applicable Federal Codes are
NFPA 54/ANSI Z223.1 National Fuel
Gas Code and NFPA/ANSI 211
Chimneys, Fireplaces, Vents, and Solid
Fuel Burning Appliances. In Canada
refer to the venting section of CAN/CGA
B149.1 and .2. These codes contain
information on special 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:

Step 1
Do not mix stainless steel pipe with
galvanized or other alternatives for the
entire length  of the system.

Step 2
All joints between sections of the vent
connector and the vertical conduit must
be sealed with a high temperature
sealant to prevent any possible leakage
of flue gas.

Step 3
Apply a bead of sealant, about 

1

/

4

inch in

diameter, completely around the male
(without tabs) end of each conduit
section or elbow, between 

1

/

4

and 

3

/

8

inch from the end of the section. Also
run a similar sized bead down the seam
weld of each section, from the edge of
the pipe to the top of the bulge.

Step 4
Fully insert the male end of the section
into the female fitting of the section
below. Spread any sealant that squeezes
out around the circumference of the
joint.  Attach the sections together
with the locking ring and tabs. Again
spread any extruded sealant around the
joint. Inspect the joint to ensure that flue
gases will not escape. If necessary,
apply additional sealant to any voids. 
Allow the sealant 24 hours to cure
before operating the water heater.

Step 5
All pipes, elbows, and fittings used in
condensate piping from liquid drain to
floor drain shall be high temperature
plastic or stainless steel.

Exhaust Muffler
Installation

Follow steps 1-5 above to join the fittings.

For muffler drain installation:

1. For mufflers installed in the vertical
configuration the drain can be plugged.
2. For mufflers installed in the horizontal
configuration, the drain should be piped
to the drain line between the water heater
and the liquid drainer. 
For best noise attenuation, the muffler
should be installed as close to the water
heater as possible.

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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