Raypak Water Heater 090A User Guide

CATALOGNO. 3000.50D  
Effective: 01-01-03  
Replaces: 03- 01-97  
INSTALLATION  
AND OPERATING  
INSTRUCTIONS  
Models 090A, 135A, 195A  
Type WH  
ECONOPAK WATER  
HEATERS  
FOR YOUR SAFETY  
Do not store or use gasoline or other flammable vapors and liquids or other combustible  
materials in the vicinity of this or any other appliance. To do so may result in an explosion or  
fire.  
WARNING: Improper installation, adjustment, alteration, service or maintenance can cause  
propertydamage,personalinjuryorlossoflife. Refertothismanual. Installationandservicemust  
be performed by a qualified installer, service agency or the gas supplier.  
FOR YOUR SAFETY  
WHAT TO DO IF YOU SMELL GAS  
*Do not try to light any appliance.  
*Do not touch any electrical switch; do not use any phone in your building.  
*Immediately call your gas supplier from a neighbor's phone. Follow the gas supplier's  
instructions.  
*Ifyoucannotreachyourgassupplier, callthefiredepartment.  
This manual should be maintained in legible  
condition and kept adjacent to the heater or kept  
in a safe place for future reference.  
P/N 240687  
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1. RECEIVING EQUIPMENT  
Onreceiptofyourequipmentitissuggestedthatyou  
visually check for external damage to the carton. If the  
carton is damaged, it is suggested that a note be made  
ontheBillofLadingwhensigningforequipment. Remove  
theheater fromthecartonandifitisdamagedreportthe  
damage to the carrier immediately. Be sure that you  
receive the number of packages indicated on the Bill of  
Lading. Claims for shortages and damages must be  
filed with carrier by consignee.  
SPECIFICATIONS AND DIMENSIONS  
PIPING  
K
VENT  
DIA.  
5"  
CONNECTIONS  
WATER GAS  
INPUT  
MBH  
90  
TANK  
GAL.*  
80  
RECOVERY  
MODEL  
WH-0090  
WH-0135  
WH-0195  
GPH  
A
11"  
18"  
18"  
B
NPT.  
1"  
1-1/4"  
1-1/4"  
NPT.  
1/2"  
1/2"  
1/2"  
5-3/4  
6-1/4  
6-1/4  
90  
132  
192  
80  
135  
6"  
7"  
80  
195  
*May be used with other tank size capacity.  
Purchased parts are subject to replacement only  
underthemanufacturer'swarranty. Debitsfordefective  
replacement parts will not be accepted and defective  
parts will be replaced in kind only per our standard  
warranties.  
Note: Recovery GPH based on Manufacturer's rating.  
When ordering parts, you must specify Model and  
Serial Number of the heater. When ordering under  
warranty conditions, you must also specify date of  
installation.  
Raypak recommends that this manual be re-  
viewed thoroughly before installing your Raypak  
Heater. Ifthereareanyquestionswhichthismanual  
does not answer, please contact your local Raypak  
representative.  
2. GENERAL SPECIFICATIONS  
TheRaypakwaterheatersaredesigncertifiedbythe  
AmericanGasAssociation,andtestedundertherequire-  
ments of the American National Standard, ANSI  
Z21.10.3. Each heater has been constructed and  
pressure tested in accordance with the requirements of  
Section IV of the American Society of Mechanical Engi-  
neers Code, and factory fire tested.  
Theheatersaredesignedforindoorinstallationwith  
a built-in drafthood, and a built-in sub-base for combus-  
tible flooring. Models are available with standing pilot,  
orwithintermittentignitiondevice(I.I.D). Theheaters are  
equipped with the following components: water circula-  
tion pump, pressure relief valve, manual reset high limit  
switch, fastresponsetemperaturesensor, 40VAtrans-  
former, vent thermal switch, flame roll-out switch, and  
redundantcombinationgasvalve. Atankstatissupplied  
loose for installation in the field.  
.#8978.5.1  
3
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General Safety Precautions  
Be sure to read and understand the entire Instruction Manual before attempting to install or operate this water heater. Pay  
particular attention to the following general Safety Precautions. Failure to follow these warnings could result in a fire or  
explosion, causing property damage, bodily injury or death. Should you have any problems understanding the instructions  
in this manual, STOP, and get help from a qualified installer or service technician or the gas supplier.  
LIQUEFIED PETROLEUM MODELS – Propane, or LP gas, must  
Gasoline, as well as other flammable materials and liquids  
be used with great caution.  
(adhesives, solvents, etc.), and the vapors they produce, are  
extremelydangerous. DONOThandle, useorstoregasoline  
• Itisheavierthanairandwillcollectfirstinlowerareasmaking  
or other flammable or combustible materials anywhere near  
it hard to detect at nose level.  
or in the vicinity of a water heater. Be sure to read and follow  
• Make sure to look and smell for LP leaks before attempting to  
the warning label pictured below and other labels on the  
light appliance. Use a soapy solution to check all gas fittings  
water heater, as well as the warnings printed in this manual.  
and connections. Bubbling at a connection indicates a leak  
Failure to do so can result in property damage, bodily injury,  
that must be corrected. When smelling to detect an LP leak,  
or death.  
be sure to sniff near the floor too.  
• Gas detectors are recommended in LP applications and their  
installation should be in accordance with the manufacturer's  
recommendations and/or local laws, rules, regulations or  
customs.  
• It is recommended that more than one method be used to  
detect leaks in LP applications.  
DANGER  
!
Failure to install the draft hood and properly vent the water  
heater to the outdoors as outlined in the Venting Section of  
this manual can result in unsafe operation of the water  
heater. To avoid the risk of fire, explosion, or asphyxiation  
from carbon monoxide, never operate this water heater  
unless it is properly vented and has an adequate air supply  
for proper operation. Be sure to inspect the vent system for  
proper installation at initial start-up; and at least annually  
thereafter. Refer to Maintenance section of this manual for  
more information regarding vent system inspections.  
IF LP GAS IS PRESENT OR SUSPECTED:  
• DO NOT attempt to find the cause yourself;  
• DO NOT try to light any appliance;  
• DO NOT touch any electrical switch;  
• DO NOT use any phone in your building.  
• Leave the building immediately and make sure that everyone  
else leaves also.  
• Leave the doors open for ventilation and contact the gas sup  
plier, a qualified service agency or the fire department.  
• Keep the area clear until the service call has been made, the  
leak is corrected, and a qualified agency has determined the  
area to be safe.  
Both LP and natural gas have an odorant added to help detec-  
tion. Some people may not physically be able to smell or  
recognize this odorant. If unsure or unfamiliar about the smell  
associated with LP or natural gas, ask the gas supplier. Other  
conditions, such as "Odorant Fade", which causes the odorant  
to "fade", or diminish in intensity can also hide or camouflage  
a gas leak.  
Vapors from  
flammable liquids will  
explode and catch fire  
causing death or severe  
Water heater has a main  
burner and pilot flame.  
The pilot flame:  
1. is on all the timeand  
burns.  
2. will ignite flammable  
vapors.  
Vapors:  
1. cannot be seen,  
2. are heavier than air,  
3. go a long way on the  
floor,  
4. can be carried from other  
room to the pilot flame by  
their currents.  
Do not use or store flammable  
products such as gasoline  
solvents or adhesives in the  
same room or area near the  
water heater.  
Keeflammable products:  
1. far away from heater,  
2. in approved containers,  
3. tightly closed and  
Water heaters utilizing Liquefied Petroleum gas (LP) are differ-  
ent from natural gas models. A natural gas heater will not  
function safely on LP gas and vice versa. Conversion from  
NaturalgastoLPgas(orviceversa)mustbedonebyaqualified  
service technician. To avoid possible equipment damage,  
personal injury or fire: DO NOT connect this water heater to a  
fuel type not in accordance with unit data plate. Propane for  
propaneunits.Naturalgasfornaturalgasunits. Theseunitsare  
not certified for any other type fuel.  
4. out of childrens reach.  
Installation:  
are at least 18" above the  
floor. This will reduce, but  
not eliminate, the risk of  
vapors being ignited by the  
main burner or pilot flame.  
Do not install water heater  
where flammable products  
will be stored or used unless  
the main burner and pilot flames  
Read and follow water heater warnings and instructions. If owners  
manual is missing, contact the retailer or manufacturer.  
LP appliances should not be installed below-grade (for ex-  
ample, in a basement) if such installation is prohibited by  
federal, state and/or local laws, rules, regulations or customs.  
4
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General Safety Precautions  
To meet commercial hot water requirements, the  
The following chart details the relationship of water  
temperatureandtimewithregardtoscaldinjuryandmay  
be used as a guide in determining the safest water  
temperatureforyourapplications.  
tankstat is adjustable up to 190°F. However, water  
temperatures over 125°F. can cause severe burns in-  
stantly or death from scalds. This is the preferred  
startingpointforsettingthecontrolforsupplyinggeneral  
purposehotwater.  
Temperature  
120°F.  
Time to Produce Serious Burn  
More than 5 minutes  
1-1/2 to 2 minutes  
Safetyandenergyconservationarefactorstobeconsid-  
eredwhensettingthewatertemperatureonthetankstat.  
Themostenergyefficientoperationwillresultwhenthe  
temperaturesettingisthelowestthatsatisfiestheneeds  
consistent with the application.  
125°F.  
130°F.  
About 30 seconds  
135°F.  
About 10 Seconds  
140°F.  
Less than 5 seconds  
Less than 3 seconds  
About 1-1/2 seconds  
About 1 second  
145°F.  
150°F.  
155°F.  
TablecourtesyofShinersBurnInstitute  
TIME/TEMPERATURERELATIONSHIPSINSCALDS  
Thetemperatureofthewaterinthestoragetankcanbe  
regulated by setting the temperature dial on front of the  
tankstat. To comply with safety regulations, the  
tankstat was set at its lowest setting before shipment  
from the factory. The illustration below illustrates the  
tankstat and how to adjust the water temperature.  
To adjust the water temperature,  
insert a small straight screwdriver  
into slotted screw in hole in front  
of tankstat and turn wheel to  
desired setting. Tankstat is  
adjustable up to 190°F.  
CAUTION!! - Hotter water  
increases the risk of  
SCALDING!  
Water temperature over 125°F can cause  
severe burns instantly or death from  
scalds.  
Children, disabled and elderly are at high-  
est risk of being scalded.  
Seeinstructionmanualbeforesettingtem-  
perature at tankstat.  
Feel water before bathing or showering.  
There is a Hot Water SCALD Potential if the tankstat is  
set too high.  
Temperature limiting valves are available,  
see manual.  
NOTE: When this water heater is supplying general  
purposehotwaterrequirementsforusebyindividuals,a  
thermostatically controlled mixing valve for reducing  
point of use water temperature is recommended to  
reduce the risk of scald injury. Contact a licensed  
plumberorthelocalplumbingauthorityforfurtherinfor-  
mation.  
Maximum water temperatures occur just after burner  
has shut off. To find hot water temperature being  
delivered, turn on a hot water faucet and place a  
thermometer in the hot water stream and read the  
thermometer.  
5
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operation and service (circulator replacement, control  
replacement,etc.)  
3. INSTALLATION PROCEDURES  
CODEREQUIREMENTS  
Installation must be in accordance with local  
codes, or, intheabsenceoflocalcodes, withthe latest  
editionsofthe NationalFuelGasCode,ANSIZ223.1,/  
NFPA 54, and the National Electrical Code, ANSI/  
NFPA70. InCanadainstallationsmustconformwiththe  
current CAN/CGA B149.1 or .2 and the Canadian  
Electrical Code Part 1 CSA C22.2 No.1. Where  
requiredbytheauthorityhavingjurisdiction,theinstalla-  
tion must conform to American Society of Mechanical  
EngineersSafetyCodeforControlsandSafetyDevices  
for Automatically Fired Heaters, No. CSD-1.  
CLEARANCEREQUIREMENTS  
1) MinimumClearancesFromCombustibleMaterials  
Model Floor Front Back Right Left Top Flue  
No.  
0090  
0135 Comb. Alcove 6"  
0195  
Vent  
6"  
6"  
16" 6"  
2) A front clearance of at least 24" is recommended  
foradequateserviceofburner-trayandcontrols.  
3) Except for carpeted flooring, heaters are certified  
for installation on combustible floors.  
MOUNTINGBASE  
Heatershouldbemountedonalevelsurface. Each  
heaterisdesignedwithabuilt-insub-baseapprovedfor  
mounting the heater on combustible flooring. Heater  
must NOT be installed on carpet flooring.  
4) For un-insulated hot water pipes, maintain a 2"  
clearance, or consult local authority having  
jurisdiction.  
COMBUSTION/VENTILATIONAIR  
WARNING: Air supply to the heater room must not be  
affected by mechanical exhaust vents located in other  
partsofthehouse, suchaskitchenorbathroomfans, or  
attic blowers. Mechanical exhaust vents may create a  
negativepressureconditionintheheaterroomthatcan  
become a hazard of asphyxiation, explosion or fire.  
8193.1  
CAUTION: Combustion air must not be contaminated  
by corrosive chemical fumes which can damage the  
heater. Measuresmustbetakentopreventtheentryof  
corrosive chemical fumes to the combustion and venti-  
lation air supply. Such chemicals include, but are not  
limited to, chlorinated and/or fluorinated hydrocarbons  
such as found in refrigerants, aerosol propellants, dry-  
cleaningfluids, degreasers, andpaintremovers. Other  
harmfulelementsmaycomefrombleaches,airfreshen-  
ers, or mastics. Vapors from these types of products  
can form corrosive acid compounds when burned in a  
gas flame. The resulting acid condensate can damage  
or substantially reduce the life of the heater. It may be  
necessary to provide outside air directly to the heater in  
order to avoid this problem.  
Fig.#8196.0  
NOTE: Theheater shouldbelocatedinanareawhere  
water leakage will not result in damage to the area  
adjacenttotheapplianceortothestructure. Whensuch  
locations cannot be avoided, it is recommended that a  
suitable drain pan, adequately drained, be installed  
under the appliance. The pan must not restrict air flow.  
1) The heater must be provided with adequate supply  
of air for proper combustion and ventilation in  
accordance with Sec. 5.3, of the latest edition of  
the National Fuel Gas Code, ANSI Z223.1, or  
applicable provisions of the local building codes.  
Inaddition,theheatershallbeinstalledsuchthatthe  
gas ignition system components are protected from  
water (dripping, spraying, rain, etc.) during appliance  
6
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2) If the heater room is located against an outside wall  
and air openings can communicate directly with the  
outdoors, the two openings on the outside wall  
musteachhaveanetfreearea, insquareinchesas  
follows:  
The discharge opening must be a minimum of two  
feetverticallyfromtheroofsurfaceandatleasttwo(2)feet  
higher than any part of the building within ten (10) feet.  
Vent stack shall be at least five (5) feet in vertical height  
above the drafthood outlet. The vent cap location shall  
have a minimum clearance of four (4) feet horizontally  
from, and in no case above or below, unless a 4-foot  
horizontal distance is maintained, from electric meters,  
gas meters regulators and relief equipment.  
Theweightoftheventstackorchimneymustnotrest  
on heater draft hood. Support must be provided in  
compliance with applicable codes. The heater top and  
draft hood must be readily removable for maintenance  
and inspection. Vent pipe should be adequately sup-  
ported to maintain proper clearances from combustible  
construction.  
Model  
0090  
0135  
0195  
Sq. In. Of Free Area  
24  
35  
50  
Location of the openings is the same as in the  
previous case - that is, within 12 inches of the top, and  
within 12 inches of the bottom of the enclosure. If  
horizontalductsareused,theareamustbedoubledand  
the duct area shall not be less than the area of the  
openingstheyconnect,andinnocaseshallthesmallest  
dimension be less than 3 inches.  
Type "B" double wall (or equivalent vent pipe is  
recommended. Howeversinglewallmetalventpipemay  
be used as specified in the latest edition of the National  
Flue Gas Code ANSI Z 223.1.  
VENTINGCONNECTIONS  
Theseheatershavebuilt-indrafthoods. Ventpiping  
the same size or larger than the draft hood outlet is  
recommended; however, when the total vent height  
(drafthoodoutlettoventterminal)isatleastten(10)feet,  
the vent pipe size may be reduced by one size only as  
specifiedinChapter10ofthelatesteditionoftheNational  
Fuel Gas Code, ANSI Z 223.1. As much as possible  
avoid long horizontal runs of vent pipe and too many  
elbows. If installation requires horizontal runs, the vent  
pipe must have a minimum of 1/4 inch per foot rise and  
should be supported at not less than five foot intervals.  
Maximumventconnectorhorizontallengthshallbe1-1/  
2feet(18inches)foreachinchofconnectordiameteras  
follows.  
HeaterSize VentConnector  
Diameter  
MaxHorizontal  
Length - FT  
90  
135  
195  
5"  
6"  
7"  
7.5  
9
10.5  
Gas Vents supported only by the flashing and  
extending above the roof more than five feet should be  
securely guyed or braced to withstand snow and wind  
loads. Werecommenduseofinsulatedventpipespacer  
through the roofs and walls.  
Forprotectionsagainstrainorblockagebysnow,the  
vent pipe must terminate with a listed vent cap which  
complies with the local codes or, in the absence of such  
codes,tothelatesteditionoftheNationalFuelGasCode,  
ANSI Z 223.1.  
7
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Fig.# 8191.1  
WARNING: These heaters must not be connected into  
anyportionofmechanicaldraftsystemsoperatingunder  
positivepressure. Todosomaycausetheflueproducts  
to be discharged into the living space causing serious  
healthinjury.  
For connections to gas vents or chimneys, vent  
installationsshallbeinaccordancewithPart7, Venting  
of Equipment, of the National Fuel Gas Code, ANSI  
Z223.1, or applicable provisions of the local building  
codes.  
COMMONVENTS  
Manifolds that connect more than one  
heater to a common chimney must be  
sized to handle the combined load.  
Consultavailableguidesforproper  
sizing of the manifold and the chimney.  
At no time should the area be less than  
the area of the largest outlet.  
Fig.#9001  
8
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At the time of removal of an existing heater, the  
following steps shall be followed with each appliance  
remaining connected to the common venting system  
placedinoperation, whiletheotherappliancesremain-  
ingconnectedtothecommonventingsystemarenotin  
operation.  
GASSUPPLYCONNECTIONS  
The inlet gas connection of the heater gas valve is  
1/2". Provide an adequate gas piping supply line no  
smaller than 1/2", according to the chart below:  
MaximumEquivalentPipeLength(Feet)  
1/2" Pipe  
3/4" Pipe  
1" Pipe  
1-1/4" Pipe  
MODEL  
NAT PROP NAT PROP NAT PROP NAT PROP  
(a) Seal any unused openings in the common venting  
system.  
0090  
0135  
0195  
30  
15  
-
80  
40  
20  
125 300 400  
-
-
-
400  
-
(b) Visually inspect the venting system for proper size  
and horizontal pitch and determine there is no  
blockage or restriction, leakage, corrosion and  
other deficiencies which could cause an unsafe  
condition.  
(c) Insofar as is practical, close all building doors and  
windows and all doors between the space in which  
the appliances remaining connected to the com-  
mon venting system are located and other spaces  
of the building. Turn on clothes dryers and any  
appliance not connected to the common venting  
system. Turn on any exhaust fans, such as range  
hoodsandbathroomexhausts,sotheywilloperate  
at maximum speed. Do not operate a summer  
exhaust fan. Close fireplace dampers.  
60 150  
35 70  
200 500  
100 250  
-
Gas piping must have a sediment trap ahead of the  
heater gas controls, and a manual shutoff valve located  
outside the jacket. All gas piping should be tested after  
installation in accordance with local codes.  
Manual  
Valve  
(d) Place in operation the appliance being inspected.  
Follow the lighting instructions. Adjust tankstat  
so appliance will operate continuously.  
Valve  
# 8192.0  
(e) Test for spillage at the draft hood relief opening  
after 5 minutes of main burner operation. Use the  
flame of a match or candle, or smoke from a  
cigarette, cigar or pipe to visually check spillage.  
(f) After it has been determined that each appliance  
remaining connected to the common venting sys-  
tem properly vents when tested as outlined above,  
return doors, windows, exhaust fans, fireplace  
dampers and any other gas burning appliance to  
their previous conditions of use.  
(g) Anyimproperoperationofthecommonventing  
system should be corrected so the installation  
conformswiththelatesteditionoftheNationalFuel  
Gas Code, ANSI Z 223.1. When resizing any  
portion of the common venting system, the com-  
monventing systemshouldberesizedtoapproach  
the minimum size as determined using the  
appropriate tables in Chapter 10 and in  
CAUTION:Theheateranditsmanualshutoffvalvemust  
bedisconnectedfromthegassupplyduringanypressure  
testing of that system at test pressures in excess of 1/  
2 psig (3.45 KPA). Dissipate test pressure in the gas  
supplylinebeforereconnectingtheheateranditsmanual  
shutoffvalvetogassupplyline. FAILURETOFOLLOW  
THISPROCEDUREMAYDAMAGETHEGASVALVE.  
OVER PRESSURED GAS VALVES ARE NOT COV-  
EREDBYWARRANTY. Theheateranditsgasconnec-  
tionsshallbeleaktestedbeforeplacingtheappliancein  
operation. Use soapy water for leak test. DO NOT use  
openflame.  
NOTE: Do not use teflon tape on gas line pipe thread.  
A flexible sealant suitable for use with Natural and  
Propane gases is recommended.  
NOTE: These boilers are also certified to operate on  
Propane gas, when equipped with the combination gas  
valve and orifices (pilot and main burners) sized for  
Propanegas.  
Appendix G of the National Fuel Gas Code,  
ANSI Z 223.1 and CAN/CGA - B149.1 -B149.2.  
GASPRESSURE-SPECIFICATIONS  
Inches  
Min.  
4.5  
W.C.  
Max.  
10.5  
Regulator  
Setting  
3.5  
Natural  
Propane  
12.0  
13.0  
11.0  
Note: Do not exceed maximum inlet gas pressure. The  
minimum value shown is for input adjustment.  
9
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The gas valve is provided with pressure taps to measure gas pressure upstream of the gas valve and  
downstream which is the same as the manifold pressure.  
WATER CONNECTIONS & SYSTEM PIPING  
The pipe size and fittings between the heater and the tank should be at least 1" for model 90, and  
1-1/4"formodels135and195. Thisisbasedonthetankbeinglocatedasclosetotheheateraspossible, asshown  
in the drawing below:  
T & P Relief Valve  
Hot Water Supply  
Thermometer  
Cold Water  
Recirculation Water  
Check Valve  
Pump  
Thermostat  
Pressure Relief Valve  
If this water heater is installed in a closed water supply system, such as one having a back-flow preventer in  
the cold water supply line, means shall be provided to control thermal expansion. Contact the water supplier or  
local plumbing inspector on how to control this situation.  
When this water heater system is supplying general purpose hot water requirements for use by individuals,  
a thermostatically controlled mixing valve is recommended to reduce the risk of scald injury. Contact a licensed  
plumber or the local plumbing authority for further information.  
Thermometer(s) should be installed so that they indicate the water temperature at or near the outlet of the  
storage tank.  
RELIEF VALVE  
A new combination temperature and pressure (T & P) relief valve, complying with the Standard for Relief  
Valves and Automatic Gas Shut Off Devices for Hot Water Supply Systems, ANSI Z21.22, must be installed in the  
opening provided on top of the storage tank, at the time of installation. No valve is to be placed between the relief  
valve and the storage tank.  
The pressure rating of the relief valve must not exceed the 160 maximum working pressure indicated on the  
water heater rating plate. The BTUH rating of the relief valve must not be less than the BTUH input of the heater.  
Connect the outlet of the relief valve to a suitable open drain. The discharge line must pitch downward from  
the valve to allow complete draining (by gravity) of the relief valve and discharge line. The discharge line should  
be no smaller than the outlet of the valve. The end of the discharge line should not be threaded or concealed, and  
should be protected from freezing. No valve of any type, restriction or reducer coupling, should be installed in the  
discharge line. Local codes shall govern installation of relief valve.  
10  
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ELECTRICAL WIRING  
The electrical power supply requirement for these heaters is 115 volts, 60 Hz. Field wiring connections and  
electrical grounding must comply with the local codes, or in the absence of local codes, with the latest edition of  
the National Electrical Code, ANSI/NFPA 70. Provide a separate fused circuit from the main electrical panel to  
the heater, and a disconnecting means within sight of the heater.  
Remove the control box cover and make the power supply connections in the field wiring compartment. (See  
general location of controls drawing on page 13). The pump is supplied and factory wired to operate with  
the heater.  
The thermostat (tankstat) is shipped loose to be installed in the tank at the installation site.  
WARNING: SHOCK HAZARD LINE VOLTAGE IS PRESENT. BEFORE SERVICING TANKSTAT OR HEATER,  
TURN OFF ELECTRICAL POWER TO THE HEATER AT THE MAIN DISCONNECT OR CIRCUIT BREAKER.  
FAILURE TO DO SO COULD RESULT IN SEVERE PERSONAL INJURY OR DEATH.  
WIRING DIAGRAM KEY  
NOTE: If it is necessary to replace any of the original  
wiring, it must be replaced with 105°C wire or its  
equivalent, except 150° black wire which must be  
replaced with 150° wire or its equivalent.  
Fig.# 8096.1  
11  
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WIRING DIAGRAM: STANDING PILOT  
MODELS 90, 135 and 195  
WARNING: SHOCK HAZARD LINE VOLTAGE IS PRESENT. BEFORE SERVICING TANKSTAT OR  
HEATER, TURN OFF ELECTRICAL POWER TO THE HEATER AT THE MAIN DISCONNECT OR CIRCUIT  
BREAKER. FAILURE TO DO SO COULD RESULT IN SEVERE PERSONAL INJURY OR DEATH.  
WIRING DIAGRAM: INTERMITTENT IGNITION DEVICE (IID)  
MODELS 90, 135 and 195  
*Field Installed  
WARNING: SHOCK HAZARD LINE  
VOLTAGE IS PRESENT. BEFORE SER-  
VICING TANKSTAT OR HEATER, TURN  
OFF ELECTRICAL POWER TO THE  
HEATER AT THE MAIN DISCONNECT  
OR CIRCUIT BREAKER. FAILURE TO  
DO SO COULD RESULT IN SEVERE  
PERSONAL INJURY OR DEATH.  
See page 11 wiring diagram key information.  
12  
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4. SERVICING PROCEDURES  
GENERAL LOCATION OF CONTROLS  
CONTROL BOX COMPONENT LOCATIONS  
Circulator  
Manual Reset Limit  
Pressure  
Relief Valve  
Field Wiring  
Compartment  
Ignition Module  
(Auto Ignition Only)  
Temperature Sensor  
Ignition Module  
(Auto Ignition Only)  
Transformer  
Roll-Out Sensor  
SEQUENCE OF OPERATION  
Gas
INTERMITTENT IGNITION DEVICE (IID)  
Heaters equipped with the IID system will automati-  
callylightthepilotburnerfirstandthenthemainburner,  
each time there is a call for heat from the tankstat.  
Whenever the tankstat is calling for heat, the circulator  
supplied with the heater, will be energized and should  
be running. The ignition control module will also be  
energizedtoinitiatethepilotignitionbyopeningthefirst  
main valve (pilot). At the same time, the electronic  
spark generator in the module produces a high voltage  
sparkpulseoutputthatlightsthepilotburner. Ifthepilot  
burner does not light, the module will not energize the  
second main valve and the burners will not light.  
Ignition spark continues only until the timed trial for  
ignitionperiodends. Then,themodulegoesintosafety  
shutdown or lockout. Lockout de-energizes the first  
main valve operator and closes the first main (pilot)  
valve in the gas control, stopping pilot gas flow. The  
ignition control system must be reset by setting the  
tankstat belowwater temperatureforoneminuteorby  
turning off power to the module for one minute. When  
the pilot flame is established, flame rectification circuit  
is completed between the sensor and burner ground.  
The flame sensing circuit in the module detects the  
flame current, shuts off the spark generator and ener-  
gizes the second main valve operator which opens the  
second main valve. This allows gas to flow to the  
burners where it is ignited by the pilot burner flame.  
When the tankstat is satisfied, the valve operators are  
de-energized shutting off the pilot and main burners,  
and also the circulator.  
13  
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START-UPPROCEDURES  
SECTION 1. Filling the System  
8. Push in control knob all the way and hold in,  
immediately light the pilot with a match. Continue  
toholdcontrolknobinforaboutoneminuteafterthe  
pilot is lighted, release knob and it will pop back up.  
Pilot should remain lighted. If it goes out, repeat  
steps 4 through 8.  
Fillsystemwithwater. Purgeallairfromthesystem  
using purge valve sequence. After system is purged of  
air, lower system pressure.  
Flushsystembeforeputtingintooperationtoassure  
that foreign material does not damage pump seals.  
* If knob does not pop up when released, stop  
and immediately call your service technician or  
gassupplier.  
* If the pilot does not stay lit after several tries,  
turn the gas control knob to "OFF" and call your  
service technician or gas supplier.  
SECTION 2. Checking the Circulator  
Before lighting the heater and after system is filled,  
make sure that circulator is operating properly. Manual  
gasvalveshouldbeoff.  
9. Stand to the side of the heater and turn the gas  
control knob counter-clockwise to "ON".  
10. Turn "ON" all electrical power to the heater.  
11. Set the tankstat to the desired setting.  
NOTE: Circulatormotorsuppliedwiththeheaterdoesnot  
requirelubrication.  
FOR STANDING PILOT MODEL WITH  
ROBERTSHAWGASVALVE,ON/OFFOPERATION  
FOR STANDING PILOT MODEL WITH HONEYWELL  
GASVALVE,ON/OFFOPERATION  
1. STOP! Read the safety information above.  
2. Set the tankstat on the lowest setting.  
3. Turn OFF all electric power to the heater.  
4. Push in gas control knob slightly and turn clockwise  
to "OFF".  
1. STOP! Read the safety information.  
2. Set the tankstat to the lowest setting.  
3. Turn Off all electrical power to the heater.  
4. Turn gas control knob clockwise to "OFF".  
GASCONTROL  
KNOBSHOWN  
IN"OFF"  
GASCONTROL  
KNOBSHOWN  
IN"OFF"POSITION  
POSITION  
GASINLET  
GASINLET  
5. Wait five (5) minutes to clear out any gas. Then  
smell for gas, including near the floor. If you smell  
gas, STOP! Follow "B" in the safety information  
above on this label. If you don't smell gas, go to the  
next step.  
6. Locate pilot behind gas valve, mounted on the  
basepaneloftheburnerdrawer.  
7. Turn knob on gas control counter-clockwise  
to "PILOT".  
NOTE: Knob cannot be turned from "PILOT" to "OFF"  
unless knob is pushed in slightly. Do not force.  
5. Wait five (5) minutes to clear out any gas. Then  
smell for gas, including near the floor. If your smell  
gas, STOP! Follow "B" in the safety information  
above on this label. If you don't smell gas, go to the  
next step.  
6. Locate pilot behind gas valve mounted on the base  
paneloftheburnerdrawer.  
7. Turn knob on gas control counter-clockwise  
to "Pilot".  
Fig.# 8083.2  
Fig.# 8041.2  
HONEYWELL PILOT  
ROBERTSHAW PILOT  
Fig.# 8041.2  
Fig.# 8083.2  
HONEYWELLPILOT  
ROBERTSHAW PILOT  
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8. Push down and hold the red reset button in, imme- C. Use only your hand to push in, move or turn the gas  
diately light the pilot with a match. Continue to hold controlknoborlever. Neverusetools. If theknoborlever  
downredresetbuttonforaboutoneminuteafterthe will not push in, move or turn by hand, don't try to repair  
pilot is lighted. Release red reset button and it will it,callaqualifiedservicetechnician. Forceor attempted  
pop back up. Pilot should Remain lighted. If it goes repair may result in a fire or explosion.  
out, repeat steps 4 through 8.  
* If red reset button does not pop up when  
released stop and immediately call your ser-  
vice technician or gas supplier.  
D. Donotusethisheaterifanyparthasbeenunderwater.  
Immediatelycallaqualifiedservicetechniciantoinspect  
the heater and to replace any part of the control system  
* If the pilot does not stay lit after several tries, and any gas control which has been under water.  
turn the gas control knob to "OFF" and call your  
Service technician or gas supplier.  
9. Stand to the side of the heater and turn the gas  
control knob counter-clockwise to "ON".  
10. Turn "ON" all electrical power to the heater.  
11. Set the tankstat to the desired setting.  
FORAUTOMATICIGNITIONMODELS.  
Please read carefully and understand the following  
safetyinformationbeforeoperatingtheheater.  
WARNING: If you do not follow these instructions ex-  
actly, a fire or explosion may result causing property  
damage, personal injury or loss of life.  
SYSTEMSHUTDOWNPROCEDURE  
1. Set the tankstat to "OFF" or the lowest setting.  
2. Turn off all electric switches to the heater.  
3. Turn off all gas valves supplying gas to the heatler. A. This heater is equipped with an ignition device which  
Refer to operating instruction label on the heater.  
4. Shut off the water supply to the heater piping  
system loop.  
automatically lights the pilot. Do not try to light the pilot  
by hand.  
5. Open drain valve on the tank to remove water from  
the heater and the piping circuits.  
B. BEFORE OPERATING smell all around the heater  
area for gas. Be sure to smell next to the floor because  
some gases are heavier than air and will settle on the  
floor.  
SECTION 3. Lighting the Heater  
CAUTION: Liquefied petroleum gas is heavier than air  
and sinks to the ground. Exercise extreme care in WHAT TO DO IF YOU SMELL GAS  
lighting heater in confined areas.  
• 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 from a  
neighbor's phone. Follow the gas supplier's  
instructions.  
For Standing Pilot Models  
WARNING: If you do not follow these instructions ex-  
actly, a fire or explosion may result causing property  
damage, personal injury or loss of life.  
• If you cannot reach your gas supplier, call the  
fire department.  
A. This heater has a pilot which must be lighted by  
hand. When lighting the pilot, follow these instructions  
exactly.  
C. Use only your hand to push in, move or turn the gas  
controlknoborlever. Never use tools. Iftheknob orlever  
B. BEFORELIGHTINGSmellallaroundtheheaterarea will not push in, move or turn by hand don't try to  
for gas. Be sure to smell next to the floor because some repair it, call a qualified service technician. Force or  
gas is heavier than air and will settle on the floor.  
attempted repair may result in a fire or explosion.  
WHAT TO DO IF YOU 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 from a  
neighbor's phone. Follow the gas supplier's  
instructions.  
D. Donotusethisheaterifanyparthasbeenunderwater.  
Immediatelycallaqualifiedservicetechniciantoinspect  
the heater and to replace any part of the control system  
and any gas control which has been underwater.  
• If you cannot reach your gas supplier, call the  
fire department.  
15  
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FOR INTERMITTENT IGNITION (IID) WITH HONEY- TO TURN OFF GAS TO HEATER  
WELLORROBERTSHAWGASVALVE  
1. Set the tankstat at the lowest setting.  
1. STOP!Readthesafetyinformationabove.  
2. Set the tankstat to the lowest setting.  
3. Turn off all electric power to the appliance.  
4. This heater is equipped with an ignition device  
which automatically lights the pilot. Do not try to  
light the pilot by hand.  
2. Turn off all the electric power to the heater if service  
is to be performed.  
3. For Honeywell Valve:  
Turn gas control knob clockwise to "Off".  
Make sure knob rest against stop.  
For Robertshaw Valve:  
Push in and move gas control lever to "Off"  
position.  
GASCONTROL  
KNOBSHOWN  
IN"ON"  
POSITION  
GASINLET  
HONEYWELL  
(Models 30 - 90)  
5. For Honeywell Valve: Turn gas control knob  
clockwise to "Off".  
HONEYWELL PILOT  
For Robertshaw Valve: Push in and move gas  
control lever to "Off" position.  
CAUTION:Shouldoverheatingoccuror thegassupply  
6. Wait 5 minutes to clear out any gas. If you then  
fails to shut off, DO NOT turn off or disconnect the  
smell gas STOP! Follow "B" in the safety informa- electrical supply to the pump. Instead, shut off the gas  
tion previously stated. If you don't smell gas, go to supply at a location external to the heater. Failure to  
the next step.  
7. For Honeywell Valve: turn gas control counter-  
clockwise to "On".  
observe this precaution may aggravate the overheated  
conditionresultinginpossibledamagetotheheaterand  
injury to the user.  
For Robertshaw Valve: Move gas control lever  
to "On" position.  
SECTION 4. Testing the Ignition Safety Shutoff.  
The ignition system safety shutoff must be tested by  
conducting the following method of tests:  
GASCONTROL  
KNOBSHOWN  
IN"OFF"  
For Standing Pilot Systems  
POSITION  
a. With the main burners on, remove the pilot  
adjustment cover screw.  
* NOTE: There is no pilot adjustment cover on  
Robertshaw 7200 gas valve.  
GASINLET  
b. Insert a small slot screw driver and turn the  
adjustment screw clockwise until pilot  
flame goes out. Note and count number of turns  
made.  
ROBERTSHAW  
(All Models)  
c. Gas valve will shut off main burners after about  
three (3) minutes. End of test. If the gas valve  
will not shut off, follow the instructions "To Turn  
Off Gas To Heater" and call service technician  
or your gas supplier.  
8. Turn on all electric power to the heatler.  
9. Set tankstat to desired setting.  
10. If the heater will not operate, follow the instruction  
"To Turn Off Gas To Heater" and call your service  
technician or gas supplier.  
d. Return pilot adjustment screw counter- clock-  
wise, same number of turns as in step (b)  
16  
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INSPECTIONPROCEDURES  
BURNERS  
Clean main burners and air louvers of dust, lint and  
debris. Keep heater area clear and free from combus-  
tiblesandflammableliquids. Donotobstructtheflow of  
combustion and ventilating air. Make visual check of  
burner and pilot flame. Yellow flame indicates clogging  
of air openings. Lifting or blowing flame indicates high  
gas pressure. Low flame indicates low gas pressure.  
Fig.# 8935.0  
Pilot Adjustment  
4"  
Max.  
ROBERTSHAW7200 GASVALVE  
(Models 135 & 180)  
e. Replace pilot adjustment cover screw, then  
follow the lighting instructions to get heater  
ready for operation.  
.#8144  
FORAUTOMATICIGNITIONSYSTEMS  
A. IntermittentIgnition(IID)  
MAINBURNERFLAME  
1. Turn on power to the ignition systems and turn gas  
supply off at the gas valve.  
2. Check ignition module as follows:  
a. Set the tankstat to high setting.  
b. Watch for continuous spark at the pilot burner.  
c. Time the spark operation. Time must be within  
the lockout timing period (15 or 90 seconds).  
d. Turn tankstat down to end call for heat and  
wait 60 seconds on lockout models before  
beginning step 3.  
64  
3. Turn on gas supply.  
4. Set tankstat to high setting.  
PILOTBURNERFLAME(STG PILOTUNITS)  
5. Systems should start as follows:  
a. Spark will turn on and pilot gas valve will open  
at once. Pilot burner should ignite after gas  
reaches the pilot burner.  
NORMALINSPECTIONPROCEDURES  
Firstandthirdmonthafterinitialstartupandthenon  
an annual basis. If problems are found, refer to Trouble  
ShootingGuideforadditionaldirections.  
b. Spark ignition should cut off when pilot flame is  
established.  
1. Remove top of heater and inspect heat exchanger  
for soot and examine venting system.  
2. Removerearheaderandinspectforscaledepos-  
its.  
c. Maingasvalveshouldopenandmainburner  
should ignite after gas reaches the burner port  
FLAMEFAILURE  
*3. Inspect pilot and main burner flame and firing rate.  
*4. Inspect and operate all controls and gas valve.  
*5. Visually inspect system for water leaks.  
*6. Oil pump motor and bearing assembly, if oil cups  
areprovided.  
7. Checkflowswitchpaddle.(Ifprovided)  
8. Clean room air intake openings to assure adequate  
flow of combustion and ventilation air.  
9. Keep heater area clear and free from combustible  
materials,gasoline,andotherflammablevapors  
and liquids.  
Withburneroperating, closethemanualfuelvalves  
to simulate a flame failure. System should lock out after  
safety switch timing (15 seconds). After the safety  
switch has cooled, open the manual valves (relight  
standing pilots) and reset the safety switch; the burner  
shouldrestart.  
*Should be checked monthly. (Takes approximately 15  
minutes).  
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BURNERDRAWERREMOVAL  
PROCEDUREFORCLEANINGFLUEGAS  
PASSAGE-WAYS  
1. Shut off power and gas supply to the heater. Dis-  
connect union(s) and pilot tubing when present;  
then loosen and remove burner hold down screws.  
2. Disconnect wires at gas valve and slide burner  
drawerout.  
Soot will clog areas behind fins and cause eventual  
tubefailure. Anysignofsootatbaseofburnersoraround  
outer jacket indicates a need for cleaning.  
1. Lift off draft hood and flue collector by removing  
bolts and screws.  
MAINBURNERANDORIFICEREMOVAL  
2. Remove"V"bafflesfromheatexchanger.  
3. Removeburnertray,seeBurnerDrawerRemoval.  
4. Take garden hose and wash heat exchanger, mak-  
ing sure soot is removed from between fins.  
(Avoidexcessivewateragainstrefractory).  
5. Reassemble; when heater is fired, some steam will  
form from wet refractory. This is normal.  
1. Removescrewsandburnerholddownbracket.  
NOTE: If theheatexchangerissootedbadly,theburner  
hold down bracket and spacer can become distorted  
fromdirectflameimpingementandthisusuallynecessi-  
tates replacement of these parts.  
2. Lift burners from slotted spacer and slide from  
orifices. Clean with a wire brush.  
NOTE: Inextremecasesitmaybenecessarytoremove  
the heat exchanger completely for cleaning. The sim-  
plest method is steam cleaning at a local car wash. DO  
NOT WIRE BRUSH!  
3. Orifices usually do not need to be replaced. To  
clean, run either copper wire or wood through  
orifice. Do not enlarge hole. To remove orifice, use  
a socket wrench and remove the manifold. DO  
NOTovertightenwhenreinstalling.  
CAUTION:  
Soot is combustible, so exercise extreme care.  
RAYPAKTUBECLEANINGKIT  
Extension Pieces (5)  
Auger with Carbide Tip  
Wire Brush  
Fig.#8185  
REPAIRSECTION  
TUBECLEANINGPROCEDURE(TYPICAL)  
Establish a regular inspection schedule, the fre-  
quency depending on the local water condition and  
severity of service. Do not let the tubes clog up solidly.  
Clean out deposits over 1/16" in thickness.  
The heater may be cleaned from the side opposite  
the water connections as shown, without breaking pipe  
connections. It is preferable, however, to remove both  
headers for better visibility through the tubes and to be  
sure the residue does not get into the system.  
Note that you do not remove the top pan or the heat  
exchangergenerally.  
3. Removedraftdiverter,liftandremovetopandflue  
collectoronstacktypemodels. Removeinspection  
panels.  
4. Loosen bolts and disconnect flange nuts on inlet-  
outletheader,loosenunion(s)atgaspipe,andslide  
heaterawayfrompipinguntilstudscleartheheater.  
5. Removeheatexchangercornerbrackets.  
6. Remove combustion chamber clips at the four  
corners of the heat exchanger.  
7. Lift heat exchanger straight up using caution not to  
damagerefractory.  
After reaming with the auger, mount the wire brush  
and clean out the debris remaining in the tubes.  
Another method is to remove the heat exchanger,  
reamtubesandimmerseheatexchangerinnon-inhibited  
de-scalesolvent.  
HEATEXCHANGERREMOVAL  
1. Shut water, gas and electricity off, close valves and  
relievepressure,removereliefvalve. Removeside  
inspectionpanels.  
2. Removetopholdingscrews.  
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HEATEXCHANGERRE-ASSEMBLY  
1. HeatexchangerwaterheaderO-ringsshouldbe  
replaced with new ones.  
2. Install inlet-outlet and return water headers and  
install header retainer nuts and torque nuts evenly.  
3. Replace "V" baffles.  
4. Install thermostat sensing bulbs in header wells  
and replace bulb retaining clips.  
5. Install inlet and return pipes in water headers using  
pipethreadsealant.  
6. Installwaterpressurereliefvalve,sensorprobe,  
and low water cutoff devices if so equipped.  
7. Open water supply and return shut-off valves. Fill  
heater and water piping system with water. Check  
heater and piping system for leaks at full line pres-  
sure. Run system circulating pump for a minimum  
of 1/2 hour with heater shut-off.  
8. Shut down entire system and vent all radiation units  
and high points in system piping. Check all strain-  
ers for debris. Expansion tank water level should  
be at the 1/4 mark and the balance of the tank filled  
withair (whenusingAir-X-Tank).  
9. Install flue collector, jacket top and inspection pan-  
els. Install top holding screws. Install draft diverter  
and vent piping if so equipped.  
10. If gas piping was disconnected, reconnect gas  
piping system and check for leakage using a soap  
solution.  
11. Check for correct water pressure and water level in  
the system. Make sure that system pump operates  
immediately on the call for heat. The system is  
readyforoperation.  
13. Within two (2) days of start-up, recheck all air vents  
and expansion tank levels.  
COMBUSTIONCHAMBERREMOVAL  
Toremovecombustionchamberyoumustfirsthave  
removed the heat exchanger. Unbolt metal combustion  
chamberretainerfromtopandremovecombustioncham-  
berpanelsindividually.  
19  
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5. TROUBLE SHOOTING GUIDE  
IMPORTANT NOTICE  
These instructions are primarily intended for the use of qualified personnel specifically trained and experienced  
in the installation of this type of heating equipment and related system components. Installation and service  
personnel may be required by some states to be licensed. Persons not qualified shall not attempt to install this  
equipment nor attempt repairs according to these instructions.  
SOLUTION(S)  
PROBLEM(S)  
CAUSE(S)  
1)Check circuit breakers, disconnect  
switch. Make sure power is on.  
1)When tankstat is turned on, heater  
does not operate.  
1)No power to the heater.  
2)Check continuity on thermostat and  
wiring circuit. Replace thermostat, or  
repair wiring connections.  
2)Defective tankstat or disconnected  
wire in thermostat circuit.  
3) Check secondary voltage. If no 24V,  
replace transformer.  
3)Defective transformer.  
1)Light pilot burner. (Follow lighting  
instructions on rating plate).  
2)Check thermocouple MV generation.  
If less than 25MV (open circuit), re  
place thermocouple. If between 25-  
35 MV, replace gas valve.  
2)When tankstat is calling for heat,  
pump is on, but burners will not turn  
on.  
1)For Standing pilot models pilot burner  
not lighted.  
2)If pilot burner will not stay lighted,  
thermocouple or gas valve may be  
defective.  
3)Turn knob to "ON" position.  
3)Gas knob in "Pilot" position.  
4)Vent switch is open.  
4) Check for blockage of venting system  
or disconnected vent piping. After  
problem is corrected push button to  
reset vent switch.  
5)Check for blockage of flue or sooted  
heat exchanger. After problem is  
corrected push button to reset roll-out  
switch.  
5)Roll-out switch is open.  
6)Check water flow and adjust to  
obtain 8° to 10°F temperature rise.  
7)Red LED on circuit board will be ON  
to indicate a loose sensor connection  
or a shorted sensor. Check terminal  
connectors or replace sensor as re-  
quired.  
6)Manual Reset High limit is open.  
7) Fast Response Temperature  
Sensor probe is defective.  
NOTE: Red LED will also be ON if  
sensor temperature exceeds 300°F or  
drops below - 20°F. It will turn OFF  
when sensor temperature returns to the  
proper range. Yellow LED will be ON, if  
temperature exceeds 210°F. When ei-  
ther Red or Yellow LED is ON, heater  
will be shut down.  
8)Check voltage across output and  
common terminals. If no 24V is pres-  
ent, replace board.  
8) Fast Response Temperature  
sensor board is defective.  
9)On Honeywell module, check voltage  
across terminals MV and MV/PV. If  
no 24V is present, replace module. If  
24V is present, replace gas valve.  
9) Defective ignition module or  
defective gas valve.  
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3)Pilot Outage.  
(Standing pilot models)  
1) Too low or too high gas pressures.  
1) Adjust inlet gas pressure as shown  
on rating plate.  
2) Restricted pilot.  
2) Clean pilot orifice.  
3) Weak thermocouple.  
3) Replace thermocouple.  
4)Yellow lazy flame.  
1) Too low gas pressure.  
2) Restricted burner intake ports.  
3) Restricted gas line.  
1) Adjust manifold pressure as shown  
on rating plate.  
2) Clean burners free of debris or in-  
sects.  
3) Clean gas line or increase gas line  
piping.  
5)Sooting  
1) Insufficient combustion air.  
1) Refer to installation instructions  
regarding combustion air  
requirements.  
2) Improper venting.  
3) Severe yellow burner flames.  
2) Refer to installations instructions.  
3) See yellow flame section above.  
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ADJUSTMENTS/REPLACEMENTSOF  
COMPONENTS  
3. Flame Roll-out Switch Replacement  
a) Shut off electrical power to the heater.  
b) Remove wiring connections to switch.  
c) Remove screws (2) holding the switch.  
d) Reverseaboveproceduretore-install.  
CAUTION: Label all wires prior to disconnection when  
servicing controls. Wiring errors can cause improper  
anddangerousoperation. Verifyproperoperationafter  
servicing.  
4. Vent Thermal Switch Replacement  
a) Shut off electrical power to the heater.  
b) Remove wiring connections to switch.  
c) Removethescrews(2).  
DANGER-SHOCKHAZARD  
Make sure electrical power to the heater is disconnect-  
ed to avoid potential serious injury or damage to com-  
ponents.  
d) Reverseaboveproceduretore-install.  
5. Ignition Module Replacement  
1. Gas Valve Replacement  
a) Shut off electrical power to the heater.  
b) Remove control cover screws and open  
controlcompartment.  
a) Shut off electrical power and gas supply to the  
heater.  
b) Remove gas piping to gas valve inlet.  
c) Disconnect wiring connections, pilot tubing  
(whenequipped).  
c) Disconnect wiring connections to module.  
d) Removescrews(2)holdingmodule.  
e) Reverseaboveproceduretore-install.  
d) Remove screws (2) holding the burner tray.  
e) Slide burner tray out.  
6. TransformerReplacement  
f) Removegasvalvebracketscrewsand  
bracket.  
g) Unscrewgasvalvefromgaspipe.  
h) Reverseaboveproceduretore-install.  
a) Shut off electrical power to the heater.  
b) Removecontrolcoverscrewsandopencontrol  
compartment.  
c) Disconnectwiringconnectionsfrom  
transformerleads.  
2. Pilot Burner Cleaning or Replacement (Standing  
Pilot)  
d) Removescrews(2)holdingtransformer.  
e) Reverseaboveproceduretore-install.  
a) Shut off electrical power and gas supply to the  
heater.  
7. Circulator Replacement  
b) Disconnect gas piping to gas valve.  
c) Disconnect wiring connections to gas valve.  
d) Remove screws (2) holding the burner tray.  
e) Slide burner tray out.  
a) Shut off electrical power to the heater.  
b) Shutoffwatersupplyandopendrainvalve  
to remove water in the piping at the pump  
level.  
f) Remove screw holding pilot lighter tube.  
g) Remove screws (2) holding pilot bracket on  
the burner tray.  
h) Disconnect thermocouple and pilot tubing  
fromthegasvalve.  
CAUTION: To avoid damage to electrical components  
keep water from getting into the control compartments  
and gas valve.  
i) Removepilotburnerfrompilotbracket.  
j) Remove pilot orifice and blow away lint or dirt.  
Clean with wire or small brush.  
c) Disconnect wiring and conduit connections to  
the pump.  
d) Remove the nuts and bolts at the inlet and  
outlet flanges. Remove old gaskets.  
e) Removethepump.  
NOTE: Make sure pilot orifice is clear, but do not  
enlargethehole.  
k) Reverseaboveproceduretore-install.  
f) Reversetheaboveproceduretore-install.  
Use new gaskets and make sure they are  
seated properly when tightening the nuts  
and bolts.  
HONEYWELL PILOT  
ROBERTSHAW PILOT  
PILOT  
PILOT  
AIR  
OPENING  
ORIFICE  
ORIFICE  
Fig.# 8102.1  
Fig.# 8045.2  
22  
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6. REPLACEMENT PARTS LIST  
NOTE: To supply the correct part it is important that you  
state the model number, serial number and type of gas  
whenapplicable.  
Any part returned for replacement under standard  
companywarrantiesmustbeproperlytaggedwithRAY-  
PAK return parts tag, completely filled in with the heater  
serial number, model number etc., and shipped to the  
Companyfreightprepaid.  
If determined defective by the Company and within  
warranty, the part will be returned in kind or equal  
substitution, freight collect. Credit will not be issued.  
RAYPAK,INC.  
2151 Eastman Avenue  
Oxnard, CA 93030  
23  
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5-S  
HONEYWELL IID  
HONEYWELL STANDING PILOT  
3-P  
ROBERTSHAW STANDING PILOT  
3-P  
1-P  
2-P  
1-P  
1-P  
2-P  
2-P  
6-P  
6-P  
8-P  
9-P  
6-P  
8-P  
Fig. # 8190.3  
8-P  
Fig. # 8189.4  
Fig. # 9112  
24  
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25  
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26  
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LIMITEDPARTSWARRANTYECONOPAKWATERHEATERS  
MODELS WH - 90 TO 195  
SCOPE:  
Raypak, Inc. ("Raypak") warrants to the original owner that all parts of this water heater which are actually manufactured by Raypak  
will be free from failure under normal use and service for the specified warranty periods and subject to the conditions set forth in this  
Warranty. Labor charges and other costs for parts removal or reinstallation, shipping and transportation are not covered by this Warranty  
but are the owner's responsibility.  
HEATEXCHANGERWARRANTY:  
• Five (5) Years from date of water heater installation. This includes only the copper, bronze and cast iron waterways.  
• Twenty (20) Years from date of water heater installation against "Thermal Shock" (excluded, however, if caused by operation  
at large changes exceeding 150°F between the water temperature at intake and water heating temperature, or operating at water  
heater temperatures exceeding 190°F).  
ANYOTHERPARTMANUFACTUREDBYRAYPAK:  
One (2) year warranty from date of installation, or eighteen (18) months from date of factory shipment based on Raypak's records,  
whichever comes first.  
SATISFACTORYPROOFOFINSTALLATIONDATE,SUCHASINSTALLERINVOICE,ISREQUIRED. THISWARRANTYWILLBEVOID  
IFTHEWATERHEATERRATINGPLATEISALTEREDORREMOVED.  
ADDITIONALWARRANTYEXCLUSIONS:  
This warranty does not cover failures or malfunctions resulting from:  
1. Failure to properly install, operate or maintain the water heater in accordance with our printed instructions provided;  
2. Abuse, alteration, accident, fire, flood and the like;  
3. Sediment or lime buildup, freezing, or other conditions causing inadequate water circulation;  
4. High velocity flow exceeding water heater design rates;  
5. Failure of connected systems devices, such as pump or controller;  
6. Use of non-factory authorized accessories or other components in conjunction with the water heater system;  
7. Failing to eliminate air from, or replenish water in, the connected water system;  
8. Chemical contamination of combustion air or use of chemical additives to water.  
PARTSREPLACEMENT:  
Under this Warranty, Raypak will furnish a replacement for any failed part. The failed part must first be returned to Raypak if  
requested, with transportation charges prepaid, and all applicable warranty conditions found satisfied. The replacement part will be  
warranted for only the unexpired portion of the original warranty. Raypak makes no warranty whatsoever on parts not manufactured  
by it, but Raypak will apply any such warranty as may be provided to it by the parts manufacturer.  
TO MAKE WARRANTY CLAIM:  
Promptly notify the original installer, supplying the model and serial numbers of the unit, date of installation and description of the  
problem. The installer must then notify his Raypak distributor for instructions regarding the claim. If either is not available, contact Service  
Manager, Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 or call (805) 278-5300. In all cases proper authorization must first be  
received form Raypak before replacement of any part.  
EXCLUSIVE WARRANTY - LIMITATION OF LIABILITY:  
This is the only warranty given by Raypak, No one is authorized to make any other warranties on Raypak's behalf. THIS WARRANTY  
IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO IMPLIED WARRANTIES OF  
MERCHANTABILITYANDFITNESSFORAPARTICULARPURPOSE. RAYPAK'SSOLELIABILITYANDTHESOLEREMEDYAGAINST  
RAYPAKWITHRESPECTTODEFECTIVEPARTSSHALLBEASPROVIDEDINTHISWARRANTY. ITISAGREEDTHATRAYPAKSHALL  
HAVENOLIABILITY,WHETHERUNDERTHISWARRANTY,ORINCONTRACT,TORT,NEGLIGENCEOROTHERWISE,FORANYSPECIAL,  
CONSEQUENTIAL,ORINCIDENTALDAMAGE,INCLUDINGDAMAGEFORMWATERLEAKAGE. Somestatesdonotallowlimitationsonhow  
long an implied warranty lasts, or for the exclusion of incidental or consequential damages. So the above limitation or exclusion may not  
apply to you.  
This Limited Warranty gives you specific legal rights. You may also have other rights which may vary from state to state. We suggest  
that you complete the information below and retain this certificate in the event warranty service is needed. Reasonable proof of the  
effective date of the warranty (date of installation) must be presented, otherwise, the effective date will be based on the rate of  
manufacture plus thirty (30) days.  
_____________________________________________________  
Name of Owner  
____________________________________________________  
Name of Dealer  
_____________________________________________________  
Address  
____________________________________________________  
Address  
_____________________________________________________  
____________________________________________________  
_____________________________________________________  
____________________________________________________  
ModelNo.  
Serial No.  
Date of Installation: _____________________________________  
Date of Initial Operation: ________________________________  
CORPORATEHEADQUARTERS:  
RAYPAK, INC., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 FAX (805) 278-5489  
Litho in U.S.A.  
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Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 FAX (800) 872-9725  
Raypak Canada LTD, 2805 Slough Street, Mississauga, Ontario, Canada L4T 1G2 (905) 677-7999 FAX (905) 677-8036  
Litho in U.S.A.  
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