Raypak Water Heater 0090A User Guide

INSTALLATION & OPERATING  
INSTRUCTIONS  
Econopak  
Water  
Heaters  
Models 0090A, 0135A  
& 0195A – Type WH  
WARNING: If the information in these instructions is not followed exactly, a fire or  
explosion may result causing property damage, personal injury or death.  
FOR YOUR SAFETY: Do not store or use gasoline or other flammable vapors and  
liquids in the vicinity of this or any other appliance.  
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.  
• If you cannot reach your gas supplier, call the fire department.  
Installation and service must be performed by a qualified installer, service agency or  
the gas supplier.  
This manual should be maintained in legible condition and kept adjacent to the heater or in a safe place for future  
reference.  
Catalog No. 3000.50G  
Effective: 04-08-09  
Replaces: 05-06-08  
P/N 240687 Rev. 8  
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CONTENTS  
WARNINGS  
Pay Attention to These Terms  
GENERAL SAFETY  
4 SERVICING PROCEDURES  
16  
16  
16  
22  
23  
4
5
Sequence of Operation  
Start-up Procedures  
Time/Temperature Relationships in Scalds 5 Repair Section  
RECEIVING EQUIPMENT  
GENERAL SPECIFICATIONS  
INSTALLATION  
6 TROUBLESHOOTING  
6 ADJUSTMENTS & REPLACEMENT  
8
8
8
8
8
9
OF COMPONENTS  
Gas Valve Replacement  
Pilot Burner Cleaning or Replacement  
(Standing Pilot)  
25  
25  
Code Requirements  
Mounting Base  
Clearances  
25  
25  
Combustion & Ventilation Air  
Venting Connections  
Flame Roll-out Switch  
Replacement  
Gas Supply Connections  
Water Connections & System  
Piping  
11 Vent Thermal Switch  
Replacement  
25  
25  
25  
26  
26  
27  
12 Ignition Module Replacement  
13 Transformer Replacement  
Circulator Replacement  
14 Replacement Parts  
WARRANTY  
Electrical Wiring  
Wiring Diagram—Standing Pilot—Models  
0090, 0135 & 0195  
Wiring Diagram—IID—Models 0090,  
0135 & 0195  
15  
3
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WARNINGS—Pay Attention to These Terms  
Indicates the presence of immediate hazards which will cause severe  
personal injury, death or substantial property damage if ignored.  
DANGER:  
Indicates the presence of hazards or unsafe practices which could cause  
WARNING:  
severe personal injury, death or substantial property damage if ignored.  
Indicates the presence of hazards or unsafe practices which could cause  
CAUTION:  
minor personal injury or product or property damage if ignored.  
Indicates special instructions on installation, operation, or maintenance which  
are important but not related to personal injury hazards.  
NOTE:  
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 the  
Maintenance section of this manual for more  
information regarding vent system inspections.  
WARNING: Gasoline, as well as other flammable  
materials and liquids (adhesives, solvents, etc.), and  
the vapors they produce, are extremely dangerous.  
DO NOT handle, use or store gasoline or other  
flammable or combustible materials anywhere near  
or in the vicinity of a water heater. Be sure to read  
and follow the warning label pictured below and  
other labels on the water heater, as well as the  
warnings printed in this manual. Failure to do so can  
result in property damage, bodily injury, or death.  
WARNING: Propane appliances should not be  
installed below-grade (for example, in a basement) if  
such installation is prohibited by federal, state and/or  
local laws, rules, regulations or customs.  
DANGER: Water heaters utilizing propane gas are  
different from natural gas models. A natural gas  
heater will not function safely on propane gas and  
vice versa. Conversion from Natural gas to propane  
gas (or vice versa) must be done by a qualified  
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 propane units,  
Natural gas for natural gas units. These units are not  
certified for any other type fuel.  
DANGER: PROPANE MODELS: Propane gas must  
be used with great caution.  
Vapors from  
Water heater has a main  
flammable liquids will  
burner and pilot flame.  
explode and catch fire  
• It is heavier than air and will collect first in lower  
areas making it hard to detect at nose level.  
• Make sure to look and smell for propane leaks  
before attempting to light appliance. Use a soapy  
solution to check all gas fittings and connections.  
Bubbling at a connection indicates a leak that must  
be corrected. When smelling to detect an propane  
leak, be sure to sniff near the floor too.  
The pilot flame:  
causing death or severe  
1. is on all the time and  
burns.  
2. will ignite flammable  
vapors.  
Do not use or store flammable  
products such as gasoline  
solvents or adhesives in the  
same room or area near the  
water heater.  
Vapors:  
1. cannot be seen,  
2. are heavier than air,  
3. go a long way on the  
floor,  
Keep flammable products:  
1. far away from heater,  
2. in approved containers,  
3. tightly closed and  
4. can be carried from other  
room to the pilot flame by  
their currents.  
• Gas detectors are recommended in propane appli-  
cations and their installation should be in  
accordance with the manufacturer's recommenda-  
tions and/or local laws, rules, regulations or  
customs.  
• It is recommended that more than one method be  
used to detect leaks in propane applications.  
4. out of childrenʼs 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.  
4
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Table A details the relationship of water temperature  
and time with regard to scald injury and may be used  
as a guide in determining the safest water temperature  
for your applications.  
GENERAL SAFETY  
To meet commercial hot water requirements, the tank-  
stat is adjustable up to 190°F. However, water  
temperatures over 125°F can cause severe burns  
instantly or death from scalds. This is the preferred  
starting point for setting the control for supplying gen-  
eral purpose hot water.  
Temperature  
120°F  
Time to Produce Serious Burn  
More than 5 minutes  
1-1/2 to 2 minutes  
125°F  
Safety and energy conservation are factors to be con-  
sidered when setting the water temperature on the  
tankstat. The most energy efficient operation will result  
when the temperature setting is the lowest that satis-  
fies the needs consistent with the application.  
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  
Table courtesy of Shriners Burn Institute.  
Table A: Time to Produce Serious Burn  
Time/Temperature  
Relationships in Scalds  
The temperature of the water in the storage tank can  
be 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.  
Water temperature over 125°F can  
causeinstantsevereburnsordeath  
from scalds.  
Fig. 1 illustrates the tankstat. To adjust the water tem-  
perature, insert a small straight screwdriver into slotted  
screw in hole in front of tankstat and turn wheel to  
desired setting. Thermostat is adjustable up to 190°F.  
Children, disabled, and elderly are  
at highest risk of being scalded.  
See instruction manual before set-  
ting temperature at water heater.  
Feel water before bathing or show-  
ering.  
Temperature limiting valves are  
available, see manual.  
Maximum water temperatures occur just after burner  
has shut off. To find hot water temperature being deliv-  
ered, turn on a hot water faucet and place a  
thermometer in the hot water stream and read the  
thermometer.  
Fig. 1: Tankstat Adjustment  
5
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warranty conditions, you must also specify date of  
installation.  
DANGER: There is a Hot Water SCALD Potential if  
the tankstat is set too high.  
Raypak recommends that this manual be reviewed  
thoroughly before installing your Raypak heater. If  
there are any questions which this manual does not  
answer, please contact your local Raypak representa-  
tive.  
CAUTION: Hotter water increases the risk of  
SCALDING!  
NOTE: When this heater is supplying general  
purpose hot water requirements for use by  
individuals, a thermostatically controlled mixing  
valve for reducing point of use water temperature is  
recommended to reduce the risk of scald injury.  
Contact a licensed plumber or the local plumbing  
authority for further information.  
GENERAL  
SPECIFICATIONS  
The Raypak water heaters are design certified by the  
and tested under the requirements 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 Engineers Code, and factory  
fire tested.  
RECEIVING EQUIPMENT  
On receipt of your equipment it is suggested that you  
visually check for external damage to the carton. If the  
carton is damaged, it is suggested that a note be made  
on the Bill of Lading when signing for equipment.  
Remove the heater from the carton and if it is dam-  
aged report the damage to the carrier immediately. Be  
sure that you receive the number of packages indicat-  
ed on the Bill of Lading. Claims for shortages and  
damages must be filed with carrier by consignee.  
These heaters are designed for indoor and outdoor  
installations, and can be installed on combustible floor-  
ing when the appropriate listed floor shield base is  
used.  
Models are available with standing pilot or with inter-  
mittent ignition device (IID), and are equipped with the  
following components as standard: water circulation  
pump, pressure relief valve, manual reset high limit  
switch, flow switch, vent thermal and flame roll-out  
switches, 40VA transformer, and redundant combina-  
tion gas valve for use with either Natural or Propane  
gases. A tankstat is supplied loose for installation in  
the field.  
Purchased parts are subject to replacement only  
under the manufacturer's warranty. Debits for defec-  
tive replacement parts will not be accepted and  
defective parts will be replaced in kind only per our  
standard warranties.  
When ordering parts, you must specify Model and  
Serial Number of the heater. When ordering under  
6
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Piping  
Connections  
(in.)  
Dimensions (in.)  
Model  
No.  
Input Recovery Tank  
(MBH)  
(gph)  
(Gal)**  
Water Gas  
(NPT) (NPT)  
K (Vent  
A
B
Dia.)  
WH-0090  
WH-0135  
WH-0195  
90  
90  
80  
80  
80  
1
1/2  
1/2  
1/2  
11  
18  
18  
5-3/4  
6-1/4  
6-1/4  
5
6
7
135  
195  
132  
192  
1-1/4  
1-1/4  
Recovery gph based on manufacturer's rating.  
**May be used with other tank size capacity.  
Table B: Specifications and Dimensions  
*
*Flow switch and temperature and pressure gauge must be field installed in the outlet water connection of the  
heater.  
Fig. 2: Dimensions  
7
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Clearances  
INSTALLATION  
Minimum Distance  
from Combustible  
Surfaces  
Code Requirements  
Heater Side  
Installation must be in accordance with local codes, or,  
in the absence of local codes, with the latest editions  
of the National Fuel Gas Code, ANSI Z223.1,/NFPA  
54, and the National Electrical Code, ANSI/NFPA 70.  
In Canada installations must conform with the current  
CAN/CSA B149 and the Canadian Electrical Code  
Part 1 CSA C22.2 No.1.  
Floor  
Front  
Combustible*  
Alcove**  
6 in.  
Back  
Right  
6 in.  
Left  
6 in.  
Where required by the authority having jurisdiction, the  
installation must conform to American Society of  
Mechanical Engineers Safety Code for Controls and  
Safety Devices for Automatically Fired Heaters, CSD-  
1.  
Top (Indoor)  
Top (Outdoor)  
Flue Vent  
16 in.  
Unobstructed  
6 in.  
*Except for carpeted flooring, heaters are certified for installation on  
combustible floors, when equipped with listed floor shield base.  
**A front clearance of at least 24 in. is recommended for adequate  
service of burner-tray and controls.  
Mounting Base  
This heater should be mounted on a level, non-com-  
bustible surface. Heater must not be installed on  
carpeting. This heater can be installed on a com-  
bustible surface only when the appropriate listed floor  
shield base is provided. An optional listed floor shield  
base is available for factory installation with the heater  
on all indoor models.  
For uninsulated hot water pipes, maintain a 2 inch clearance, or con-  
sult the local authority having jurisdiction.  
Table C: Minimum Clearances from Combustible  
Surfaces  
Combustion & Ventilation Air  
(Indoor models only)  
NOTE: The heater should be located in an area  
where water leakage will not result in damage to the  
area adjacent to the appliance or to the structure.  
When such 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.  
WARNING: Air supply to the heater room must not  
be affected by mechanical exhaust vents located in  
other parts of the house, such as kitchen or  
bathroom fans, or attic blowers. Mechanical exhaust  
vents may create a negative pressure condition in  
the heater room that can become a hazard of  
asphyxiation, explosion or fire.  
In addition, the heater shall be installed such that the  
gas ignition system components are protected from  
water (dripping, spraying, rain, etc.) during appliance  
operation and service (circulator replacement, control  
replacement, etc.).  
CAUTION: Combustion air must not be  
contaminated by corrosive chemical fumes which  
can damage the heater. Measures must be taken to  
prevent the entry of corrosive chemical fumes to the  
combustion and ventilation air supply. Such  
chemicals include, but are not limited to, chlorinated  
and/or fluorinated hydrocarbons such as found in  
refrigerants, aerosol propellants, dry-cleaning fluids,  
degreasers, and paint removers. Other harmful  
elements may come from bleaches, air fresheners,  
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. 3: Do Not Install on Carpeting  
8
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1. The heater must be provided with adequate sup-  
ply 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.  
Vent  
Max.  
Model No.  
Connector  
Diameter (in.)  
Horizontal  
Length (ft)  
0090  
0135  
0195  
5
6
7
7.5  
9
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 out-  
side wall must each have a net free area, in  
square inches as shown in Table D.  
10.5  
Table E: Vent Piping Specifications  
For protection against rain or blockage by snow, the  
vent pipe must terminate with a listed vent cap which  
complies with the local codes or, in the absence of  
such codes, to the latest edition of the National Fuel  
Gas Code, ANSI Z223.1.  
Model No.  
0090  
Sq. in. of Each Free Area  
24  
35  
50  
0135  
The discharge opening must be a minimum of two feet  
vertically from the roof surface and at least two(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 loca-  
tion 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 equip-  
ment.  
0195  
Table D: Minimum Net Free Area  
Location of the openings is the same as in the pre-  
vious case - that is, within 12 inches of the top,  
and within 12 inches of the bottom of the enclo-  
sure. If horizontal ducts are used, the area must  
be doubled and the duct area shall not be less  
than the area of the openings they connect, and in  
no case shall the smallest dimension be less than  
3 inches.  
The weight of the vent stack or chimney must not rest  
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.  
Venting Connections  
Vent piping the same size or larger than the draft hood  
outlet is recommended, however, when the total vent  
height is at least ten (10) feet (draft hood relief open-  
ing to vent terminal), the vent pipe size may be  
reduced as specified in the National Fuel Gas Code,  
ANSI Z 223.1. As much as possible avoid long hori-  
zontal runs of vent pipe and too many elbows.  
Type "B" double wall or equivalent vent pipe is recom-  
mended. However single wall metal vent pipe may be  
used as specified in the latest edition of the National  
Flue Gas Code ANSI Z223.1.  
For connections to gas vents or chimneys, vent instal-  
lations shall be in accordance with Part 7, Venting of  
Equipment, of the National Fuel Gas Code, ANSI  
Z223.1, or applicable provisions of the local building  
codes.  
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 more than five foot inter-  
vals. Plumbers tape, crisscrossed, will serve to space  
both horizontal and vertical piping. Maximum vent con-  
nector horizontal length shall be 1-1/2 feet (18 inches)  
for each inch of connector diameter as shown in Table  
E.  
Gas vents supported only by the flashing and extend-  
ing above the roof more than five feet should be  
securely guyed or braced to withstand snow and wind  
loads. We recommend use of insulated vent pipe  
spacer through the roofs and walls.  
9
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Fig. 5: Common Venting  
(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.  
Fig. 4: Venting Minimum Clearances  
(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  
hoods and bathroom exhausts, so they will oper-  
ate at maximum speed. Do not operate a summer  
exhaust fan. Close fireplace dampers.  
WARNING: These heaters must not be connected  
into any portion of mechanical draft systems  
operating under positive pressure. To do so may  
cause the flue products to be discharged into the  
living space causing serious health injury.  
Common Vents  
Manifolds that connect more than one heater to a com-  
mon chimney must be sized to handle the combined  
load. Consult available guides for proper sizing of the  
manifold and the chimney. At no time should the  
area be less than the area of the largest outlet.  
(d) Place in operation the appliance being inspected.  
Follow the lighting instructions. Adjust tankstat so  
appliance will operate continuously.  
(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 ciga-  
rette, cigar or pipe to visually check spillage.  
At the time of removal of an existing heater, the follow-  
ing steps shall be followed with each appliance  
remaining connected to the common venting system  
placed in operation, while the other appliances remain-  
ing connected to the common venting system are not  
in operation.  
(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.  
(a) Seal any unused openings in the common venting  
system.  
10  
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(g) Any improper operation of the common venting  
system should be corrected so the installation  
conforms with the latest edition of the National  
Fuel Gas Code, ANSI Z223.1. When re-sizing any  
portion of the common venting system, the com-  
mon venting system should be re-sized to  
approach the minimum size as determined using  
the appropriate tables in Chapter 10 and in  
Appendix G of the National Fuel Gas Code, ANSI  
Z223.1 and CAN/CSA-B149.  
Gas Supply Connections  
The inlet gas connection to the heater gas valve is  
1/2". Provide an adequate gas supply line according to  
Table F below.  
SUPPLIED BY  
INSTALLER  
Gas piping must have a sediment trap ahead of the  
heater gas controls, and a manual shut-off valve locat-  
ed outside the heater jacket. All gas piping should be  
tested after installation in accordance with local codes.  
Fig. 6: Sediment Trap  
NOTE: Do not use teflon tape on gas line pipe  
thread. A flexible sealant suitable for use with Natural  
and Propane gases is recommended.  
CAUTION: The heater and its manual shut off  
valve must be disconnected from the gas supply  
during any pressure testing of that system at test  
pressures in excess of 1/2 psi (3.45 kPa). Dissipate  
test pressure in the gas supply line before  
reconnecting the heater and its manual shut off valve  
to gas supply line. FAILURE TO FOLLOW THIS  
PROCEDURE MAY DAMAGE THE GAS VALVE.  
OVER PRESSURED GAS VALVES ARE NOT  
COVERED BY WARRANTY. The heater and its gas  
connections shall be leak tested before placing the  
appliance in operation. Use soapy water for leak test  
DO NOT use open flame.  
NOTE: These heaters are also certified to operate  
on Propane gas, when equipped with the  
combination gas valve and orifices (pilot and main  
burners) sized for Propane gas.  
1/2 in.  
Pro  
3/4 in.  
Nat  
1 in.  
1-1/4 in.  
Nat Pro  
Model No.  
Nat  
30  
Pro  
300  
150  
70  
Nat  
400  
150  
100  
Pro  
560  
200  
100  
0090  
0135  
0195  
80  
40  
20  
125  
60  
15  
35  
400  
Natural gas, 1000 BTUH/ft .60 specific gravity @ 0.5 in. WC pressure drop.  
Propane gas, 2500 BTUH/ft 1.53 specific gravity @ 0.6 in. WC pressure drop.  
Table F: Maximum Equivalent Pipe Length (ft)  
11  
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Gas Pressure Specifications  
Water Connections & System  
Piping  
Inches WC  
Type of  
Gas  
Regulator  
Setting  
The pipe size and fittings between the heater and the  
tank should be at least 1" for model 0090, and 1-1/4"  
for models 0135 and 0195. This is based on the tank  
being located as close to the heater as possible, as  
shown in Fig. 7 below.  
Min.  
Max.*  
10.5  
Natural  
4.5  
3.5  
Propane  
12.0  
13.0  
11.0  
*Do not exceed maximum inlet gas pressure. The minimum value  
shown is for input adjustment.  
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 heater  
supplier or local plumbing inspector on how to control  
this situation.  
Table G: Gas Pressure Specifications  
Gas Pressure Regulator  
The gas valve is provided with pressure taps to meas-  
ure gas pressure upstream of the gas valve and  
downstream which is the same as the manifold pres-  
sure.  
Fig. 7: Heater with Storage Tank  
12  
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When this water heater system is supplying general  
purpose hot water requirements for use by individuals,  
a thermostatically controlled mixing valve is recom-  
mended to reduce the risk of scald injury. Contact a  
licensed plumber or the local plumbing authority for  
further information.  
Electrical Wiring  
The electrical power supply requirement for these  
heaters is 120 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.  
Thermometer(s) should be installed so that they indi-  
cate the water temperature at or near the outlet of the  
storage tank.  
Provide a separate fused circuit from the main electri-  
cal panel to the heater, and a disconnecting means  
within sight of the heater.  
Relief Valve  
Remove the control box cover and make the power  
supply connections in the field wiring compartment.  
(See general location of controls drawing). 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.  
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.  
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.  
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.  
NOTE: Minimum 18 AWG, 105°C, stranded wire  
must be used for all low voltage (less than 30 volts)  
external connections to the unit. Solid conductors  
should not be used because they can cause  
excessive tension on contact points. Install conduit  
as appropriate. All high voltage wires must be the  
same size (105°C, stranded wire) as the ones on the  
unit or larger.  
The discharge line should be no smaller than the out-  
let of the valve. The end of the discharge line should  
not be threaded or concealed, and should be protect-  
ed 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.  
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.  
Temperature & Pressure Gauge  
The temperature and pressure gauge is standard  
equipment on all hot water heaters. All temperature  
and pressure gauges are shipped loose for field instal-  
lation in the outlet water connection (see Fig. 7). All  
fittings required to mount the gauge to the piping are  
supplied by others.  
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Wiring Diagram—Standing Pilot—Models 0090, 0135 & 0195  
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Wiring Diagram—IID—Models 0090, 0135 & 0195  
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tor in the module produces a high voltage spark pulse  
output that lights the pilot burner. If the pilot 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 ignition period  
ends.  
SERVICING  
PROCEDURES  
General Location of Controls  
Then, the module goes into safety shutdown or lock-  
out. Lockout de-energizes the first main valve operator  
and closes the first main (pilot) valve in the gas con-  
trol, stopping pilot gas flow. The ignition control system  
must be reset by setting the tankstat below water tem-  
perature for one minute or by turning off power to the  
module for one minute.  
Circulator  
Manual Reset Limit  
(in heater behind pan
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 genera-  
tor and energizes 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 burn-  
er flame.  
Pressure  
Relief Valve  
Field Wiring  
Compartment  
Temperature Sensor  
Ignition Module  
(Auto Ignition Only)  
When the tankstat is satisfied, the valve operators are  
de-energized shutting off the pilot and main burners,  
and also the circulator.  
Transformer  
Roll-Out Sensor  
Gas
Start-up Procedures  
Filling the System  
Fill system with water. Purge all air from the system  
using purge valve sequence. After system is purged of  
air, lower system pressure. Flush system before put-  
ting into operation to ensure that foreign material does  
not damage pump seals.  
Ignition Module  
(Auto Ignition Only)  
Checking the Circulator  
Fig. 8: General Location of Controls  
Before lighting the heater and after system is filled,  
make sure that circulator is operating properly. Manual  
gas valve should be off.  
Sequence of Operation  
Intermittent Ignition Device (IID)  
NOTE: Circulator motor supplied with the heater  
does not require lubrication.  
Heaters equipped with the IID system will automatical-  
ly light the pilot burner first and then the main burner,  
each time there is a call for heat from the tankstat.  
Whenever the tankstat calling for heat, the circulator  
supplied with the heater, will be energized and should  
be running.  
The ignition control module will also be energized to  
initiate the pilot ignition by opening the first main valve  
(pilot). At the same time, the electronic spark genera-  
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9. Push in control knob all the way and hold in,  
immediately light the pilot with a match. Continue  
to hold control knob in for about one minute after  
the pilot is lighted, release knob and it will pop  
back up. Pilot should remain lighted. If it goes out,  
repeat steps 4 through 8.  
For Standing Pilot Model with  
Robertshaw Gas Valve, On/Off  
Operation  
1. STOP! Read the safety information.  
2. Set the tankstat on the lowest setting.  
3. Turn OFF all electric power to the heater.  
4. Remove heater door panel.  
*
If knob does not pop up when released, stop  
and immediately call your service technician  
or gas supplier.  
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.  
5. Push in gas control knob slightly and turn clock-  
*
wise  
to "OFF".  
10. Stand to the side of the heater and turn the gas  
control knob counter-clockwise  
11. Replace heater door.  
to "ON".  
GASCONTROL  
KNOBSHOWN  
IN"OFF"POSITION  
12. Turn "ON" all electrical power to the heater.  
13. Set the tankstat to the desired setting.  
GASINLET  
For Standing Pilot Model with  
Honeywell Gas Valve, On/Off  
Operation  
Fig. 9: Robertshaw Gas Valve  
1. STOP! Read the safety information.  
2. Set the tankstat to the lowest setting.  
3. Turn Off all electrical power to the heater.  
4. Remove heater door panel.  
NOTE: Knob cannot be turned from "PILOT" to  
"OFF" unless knob is pushed in slightly. Do not force.  
5. Turn gas control knob clockwise  
to "OFF".  
6. 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.  
GASCONTROL  
KNOBSHOWN  
IN"OFF"  
7. Locate pilot behind gas valve mounted on the POSITION  
base panel of the burner drawer.  
GASINLET  
8. Turn knob on gas control counter-clockwise  
to "Pilot".  
Fig. 11: Honeywell Gas Valve  
6. 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.  
7. Locate pilot behind gas valve mounted on the  
base panel of the burner drawer.  
8. Turn knob on gas control counter-clockwise  
to "PILOT".  
9. Push down and hold the red reset button in, imme-  
diately light the pilot with a match. Continue to hold  
down red reset button for about one minute after  
the pilot is lighted. Release red reset button and it  
will pop back up. Pilot should remain lighted. If it  
goes out, repeat steps 4 through 8.  
HONEYWELLPILOT  
ROBERTSHAW PILOT  
Fig. 10: Honeywell and Robertshaw Pilots  
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instructions.  
* If red reset button does not pop up when  
released, STOP and immediately call your  
service technician or gas supplier.  
If you cannot reach your gas supplier, call the fire  
department.  
* 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.  
C. Use only your hand to push in, move or turn the  
gas control knob or lever. Never use tools. If the  
knob or lever will not push in, move or turn by  
hand, don't try to repair it, call a qualified service  
technician. Force or attempted repair may result in  
a fire or explosion.  
10. Stand to the side of the heater and turn the gas  
control knob counterclockwise  
11. Replaceheaterdoor.  
to "ON".  
12. Turn "ON" all electrical power to the heater.  
13. Set the tankstat to the desired setting.  
D. Do not use this heater if any part has been under  
water. Immediately call a qualified service techni-  
cian to inspect the heater and to replace any part  
of the control system and any gas control which  
has been under water.  
System Shut Down Procedure  
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 heater.  
Refer to operating instruction label on the heater.  
4. Shut off the water supply to the heater piping sys-  
tem loop.  
For Automatic Ignition Models  
Please read carefully and understand the following  
safety information before operating the heater.  
5. Open drain valve on the tank to remove water from  
the heater and the piping circuits.  
WARNING: If you do not follow these instructions  
exactly, a fire or explosion may result causing prop-  
erty damage, personal injury or loss of life.  
Lighting the Heater  
For your safety read carefully before proceeding to  
light the heater.  
A. This heater is equipped with an ignition device  
which automatically lights the pilot. Do not try to  
light the pilot by hand.  
CAUTION: Propane gas is heavier than air and  
sinks to the ground. Exercise extreme care in light-  
ing heater in confined areas.  
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.  
For Standing Pilot Models  
WARNING: If you do not follow these instructions  
exactly, a fire or explosion may result causing prop-  
erty damage, personal injury or loss of life.  
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 neigh-  
bor's phone. Follow the gas supplier's instructions.  
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 instruc-  
tions exactly.  
B. BEFORE LIGHTING smell all around the heater  
area for gas. Be sure to smell next to the floor  
because some gas is heavier than air and will set-  
tle on the floor.  
C. Use only your hand to push in, move or turn the  
gas control knob or lever. Never use tools. If the  
knob or lever will not push in, move or turn by  
hand, don't try to repair it, call a qualified service  
technician. Force or 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 neigh-  
bor's telephone. Follow the gas supplier's  
D. Do not use this heater if any part has been under  
water. Immediately call a qualified service techni-  
cian to inspect the heater and to replace any part  
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of the control system and any gas control which  
has been under water.  
GASCONTROL  
KNOBSHOWN  
IN"OFF"  
For Intermittent Ignition (IID) with  
Honeywell or Robertshaw Gas  
Valve  
POSITION  
GASINLET  
1. STOP! Read the safety information above on this  
label.  
2. Set the tankstat on the lowest setting.  
3. Turn off all electric power to the appliance.  
4. This appliance is equipped with an ignition device  
which automatically lights the pilot. Do not try to  
light the pilot by hand.  
ROBERTSHAW  
(All Models)  
Fig. 13: Honeywell Gas Valve  
GASCONTROL  
KNOBSHOWN  
IN"ON"  
9. Replace door panel.  
10. Turn on all electric power to the appliance.  
11. Set tankstat to desired setting.  
12. If the heater will not operate, follow the instructions  
To Turn Off Gas To Appliance” and call your serv-  
ice technician or gas supplier.  
POSITION  
GASINLET  
HONEYWELL  
(Model 0090)  
To Turn Off Gas to Heater  
Fig. 12: Honeywell Gas Valve  
1. Set the thermostat to the lowest setting.  
2. Turn off all the electric power to the appliance if  
service is to be performed.  
5. Remove heater door panel.  
6. For Robertshaw Gas Valve: Turn gas control knob  
3. Remove door panel.  
clockwise  
to "OFF". For Honeywell Gas  
to  
4. For Robertshaw Gas Valve: Push in and move  
gas control lever to “OFF” position.  
Valve: Turn gas control knob clockwise  
"OFF". Make sure knob rest against stop. For  
Honeywell Gas Valve: Push in gas control knob  
slightly and turn clockwise to "OFF". Knob cannot  
be turned to "OFF" unless knob is pushed in slight-  
ly. Do not force.  
For Honeywell Gas Valve: Push in gas control  
knob slightly and turn clockwise  
5. Replace heater door panel.  
to “OFF”.  
7. 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  
previously stated. If you do not smell gas, go to the  
next step.  
8. For Honeywell Gas Valve: Turn gas control knob  
counter-clockwise  
to “ON”.  
For Robertshaw Gas Valve: Move gas control  
lever to “ON" position.  
Fig. 14: Honeywell Pilot  
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For Automatic Ignition Systems  
CAUTION: Should overheating occur or the gas  
supply fails to shut off, DO NOT turn off or discon-  
nect the electrical supply to the pump. Instead, shut  
off the gas supply at a location external to the heater.  
Failure to observe this precaution may aggravate the  
overheated condition resulting in possible damage to  
the heater and injury to the user.  
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 with-  
in the lockout timing period (15 or 90  
seconds).  
Testing the Ignition Safety Shut-off  
d. Turn tankstat down to end call for heat and  
wait 60 seconds on lockout models before  
beginning step 3.  
The ignition system safety shutoff must be tested by  
conducting the following tests:  
3. Turn on gas supply.  
4. Set tankstat to high setting.  
For Standing Pilot Systems  
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.  
1. With the main burners on, remove the pilot adjust-  
ment cover screw.  
NOTE: There is no pilot adjustment cover on  
Robertshaw 7200 gas valve.  
b. Spark ignition should cut off when pilot flame  
is established.  
c. Main gas valve should open and main burner  
should ignite after gas reaches the burner  
port.  
2. Insert a small slot screw driver and turn the adjust-  
ment screw clockwise  
until pilot flame goes  
out. Count and note number of turns made.  
3. 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.  
Flame Failure  
With burner operating, close the manual fuel valves 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  
should restart.  
4. Return pilot adjustment screw counterclockwise  
same number of turns as in step 2.  
Inspection Procedures  
Burners  
Clean main burners and air louvers of dust, lint and  
debris. Keep heater area clear and free from com-  
bustibles and flammable liquids. Do not obstruct the  
flow of combustion and ventilating air. Make visual  
check of burner and pilot flame. Yellow flame indicates  
clogging of air openings. Lifting or blowing flame indi-  
cates excess high gas pressure. Low flame indicates  
low gas pressure.  
PILOT KEY  
Pilot Adjustment  
Fig. 15: Robertshaw 7200 Gas Valve (Models 0135 &  
0195)  
5. Replace pilot adjustment cover screw, then follow  
the lighting instructions to get heater ready for  
operation.  
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Procedure for Cleaning Flue Gas  
Passage Ways  
Soot will clog areas behind fins and eventually cause  
tube failure. Any sign of soot at base of burners or  
around outer jacket indicates a need for cleaning.  
1. Lift off draft hood and flue collector by removing  
bolts and screws.  
2. Remove "V" baffles from heat exchanger.  
3. Remove burner tray, see Burner Drawer Removal.  
4. Take garden hose and wash heat exchanger, mak-  
ing sure soot is removed from between fins. (Avoid  
excessive water against refractory).  
5. Reassemble; when heater is fired, some steam  
will form from wet refractory, which is normal.  
Fig. 16: Typical Main Burner Flame  
NOTE: In extreme cases it may be necessary to  
remove the heat exchanger completely for cleaning.  
The simplest method is steam cleaning at a local car  
wash.  
CAUTION: Soot is combustible. Exercise extreme  
care. Do not wire brush.  
Fig. 17: Pilot Burner Flame (STG Pilot Units)  
Normal Inspection Procedures  
Burner Drawer Removal  
First and third month after initial start up and then on  
an annual basis. If problems are found, refer to  
Trouble Shooting Guide for additional directions.  
1. Shut off power and gas supply to the heater.  
Disconnect union(s) and pilot tubing when present;  
then loosen and remove burner hold down screws.  
2. Disconnect wires at gas valve and slide burner  
drawer out.  
1. Remove top of heater and inspect heat exchanger  
for soot and examine venting system.  
2. Remove rear header and inspect for scale  
deposits.  
Main Burner and Orifice Removal  
*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. a. Oil pump motor and bearing assembly, if oil  
cups are provided.  
b. Disconnect pump from header and check con-  
dition of pump impeller. Check condition of  
bearing by attempting to move impeller from  
side to side. Replace any parts showing wear.  
c. Check pump coupler for wear and vibration.  
7. Check flow switch paddle (if provided).  
8. Clean room air intake openings to assure ade-  
quate flow of combustion and ventilation air.  
1. Remove screws and burner hold down bracket.  
NOTE: If the heat exchanger is sooted badly, the  
burner hold down bracket and spacer can become  
distorted from direct flame impingement and this  
usually necessitates replacement of these parts.  
2. Lift burners from slotted spacer and slide from ori-  
fices. Clean with a wire brush.  
3. Orifices usually do not need to be replaced. To  
clean, run either copper wire or wood through ori-  
fice. Do not enlarge hole. To remove orifice, use a  
socket wrench and remove the manifold. DO NOT  
overtighten when reinstalling.  
9. Keep heater area clear and free from combustible  
materials, gasoline, and other flammable vapors  
and liquids.  
*Should be checked monthly. (Takes approximately 15  
minutes).  
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RAYPAKTUBECLEANINGKIT  
Extension Pieces (5)  
Auger with Carbide Tip  
Wire Brush  
Fig. 18: Raypak Tube Cleaning Kit  
3. Replace "V" baffles.  
Repair Section  
4. Install thermostat sensing bulbs in header wells  
and replace bulb retaining clips.  
Tube Cleaning Procedure (Typical)  
5. Install inlet and return pipes in water headers  
using pipe thread sealant.  
Establish a regular inspection schedule, the frequency  
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.  
6. Install water pressure relief valve, sensor probe,  
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.  
The heater may be cleaned from the side opposite the  
water connections, 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. Generally, you  
do not remove the top pan or the heat exchanger .  
8. Shut down entire system and vent all radiation  
units and high points in system piping. Check all  
strainers for debris. Expansion tank water level  
should be at the 1/4 mark and the balance of the  
tank filled with air (when using Air-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 pip-  
ing 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 oper-  
ates immediately on the call for heat. The system  
is ready for operation.  
12. Within two (2) days of start-up, recheck all air  
vents and expansion tank levels.  
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,  
ream tubes and immerse heat exchanger in non-inhib-  
ited de-scale solvent.  
Heat Exchanger Removal  
1. Shut water, gas and electricity off, close valves  
and relieve pressure, remove relief valve. Remove  
side inspection panels.  
2. Remove top holding screws.  
3. Remove draft diverter, lift and remove top and flue  
collector on stack type models. Remove inspec-  
tion panels.  
Combustion Chamber Removal  
4. Loosen bolts and disconnect flange nuts on inlet-  
outlet header, loosen union(s) at gas pipe, and  
slide heater away from piping until studs clear the  
heater.  
5. Remove heat exchanger corner brackets.  
6. Remove combustion chamber clips at the four cor-  
ners of the heat exchanger.  
7. Lift heat exchanger straight up using caution not to  
damage refractory.  
To remove combustion chamber you must first have  
removed the heat exchanger. Unbolt metal combus-  
tion chamber retainer from top and remove  
combustion chamber panels individually.  
Heat Exchanger Re-Assembly  
1. Heat exchanger water header O-rings should be  
replaced with new ones.  
2. Install inlet-outlet and return water headers and  
install header retainer nuts and torque nuts even-  
ly.  
Fig. 19: Refractory Panels—Top View  
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TROUBLESHOOTING  
Theseinstructionsareprimarilyintendedfortheuseofqualifiedpersonnelspecificallytrainedandexperiencedinthe  
installationofthistypeofheatingequipmentandrelatedsystemcomponents. Installationandservicepersonnelmay  
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,  
replacetransformer.  
3)Defective transformer.  
1)Light pilot burner. (Follow lighting  
instructions on rating plate).  
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)Check thermocouple MV generation.  
If less than 25MV (open circuit), re-  
place thermocouple. If between 25-  
35 MV, replace gas valve.  
2)If pilot burner will not stay lighted,  
thermocouple or gas valve may be  
defective.  
3)Turn knob to "ON" position.  
4) Check for blockage of venting sys  
temordisconnectedventpiping. After  
problem is corrected push button to  
resetventswitch.  
3)Gas knob in "Pilot" position.  
4)Vent switch is open.  
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)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.  
6)Manual Reset High limit is open.  
7) Defective ignition module or  
defective gas valve.  
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3)Pilot Outage.  
1) Adjust inlet gas pressure as  
shown on rating plate.  
1) Too low or too high gas  
pressures.  
(Standing pilot models)  
2) Restricted pilot.  
3) Weak thermocouple.  
2) Clean pilot orifice.  
3) Replace thermocouple.  
4)Yellow lazy flame.  
5)Sooting  
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  
insects.  
3) Clean gas line or increase gas line  
piping.  
1) Insufficient combustion air.  
1) Refer to installation instructions  
regarding combustion air  
requirements.  
2) Improper venting.  
2) Refer to installations instructions.  
3) See yellow flame section above.  
3) Severe yellow burner flames.  
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HONEYWELL PILOT  
ROBERTSHAW PILOT  
ADJUSTMENTS &  
REPLACEMENT OF  
COMPONENTS  
PILOT  
PILOT  
AIR  
OPENING  
CAUTION: Label all wires prior to disconnection  
when servicing controls. Wiring errors can cause  
improper and dangerous operation. Verify proper  
operation after servicing.  
ORIFICE  
ORIFICE  
DANGER: SHOCK HAZARD: Make sure electri-  
cal power to the heater is disconnected to avoid  
potential serious injury or damage to components.  
Fig. 20: Pilots  
Gas Valve Replacement  
Flame Roll-out Switch  
Replacement  
1. Shut off electrical power and gas supply to the  
heater.  
2. Remove gas piping to gas valve inlet.  
3. Disconnect wiring connections, pilot tubing (when  
equipped).  
4. Remove screws (2) holding the burner tray.  
5. Slide burner tray out.  
6. Remove gas valve bracket screws and bracket.  
7. Unscrew gas valve from gas pipe.  
8. Reverse above procedure to re-install.  
1. Shut off electrical power to the heater.  
2. Remove wiring connections to switch.  
3. Remove screws (2) holding the switch.  
4. Reverse above procedure to re-install.  
Vent Thermal Switch  
Replacement  
Pilot Burner Cleaning or  
Replacement (Standing  
Pilot)  
1. Shut off electrical power to the heater.  
2. Remove wiring connections to switch.  
3. Remove the screws (2).  
4. Reverse above procedure to re-install.  
1. Shut off electrical power and gas supply to the  
heater.  
2. Disconnect gas piping to gas valve.  
3. Disconnect wiring connections to gas valve.  
4. Remove screws (2) holding the burner tray.  
5. Slide burner tray out.  
6. Remove screw holding pilot lighter tube.  
7. Remove screws (2) holding pilot bracket on the  
burner tray.  
8. Disconnect thermocouple and pilot tubing from the  
gas valve.  
Ignition Module Replacement  
1. Shut off electrical power to the heater.  
2. Remove control cover screws and open control  
compartment.  
3. Disconnect wiring connections to module.  
4. Remove screws (2) holding module.  
5. Reverse above procedure to re-install.  
Transformer Replacement  
9. Remove pilot burner from pilot bracket.  
10. Remove pilot orifice and blow away lint or dirt.  
Clean with wire or small brush.  
1. Shut off electrical power to the heater.  
2. Remove control cover screws and open control  
compartment.  
3. Disconnect wiring connections from transformer  
leads.  
4. Remove screws (2) holding transformer.  
5. Reverse above procedure to re-install.  
NOTE: Make sure pilot orifice is clear, but do not  
enlarge the hole.  
11. Reverse above procedure to re-install.  
25  
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Circulator Replacement  
Replacement Parts  
1. Shut off electrical power to the heater.  
2. Shut off water supply and open drain valve to  
remove water in the piping at the pump level.  
NOTE: To supply the correct part it is important that  
you state the model number, serial number and type  
of gas when applicable.  
CAUTION: To avoid damage to electrical compo-  
nents keep water from getting into the control  
compartments and gas valve.  
Any part returned for replacement under standard  
company warranties must be properly tagged with  
RAYPAK return parts tag, completely filled in with the  
heater serial number, model number etc., and shipped  
3. Disconnect wiring and conduit connections to the to the Company freight prepaid.  
pump.  
4. Remove the nuts and bolts at the inlet and outlet If determined defective by the Company and within  
flanges. Remove old gaskets.  
5. Remove the pump.  
warranty, the part will be returned in kind or equal sub-  
stitution, freight collect. Credit will not be issued.  
6. Reverse the above procedure to re-install. Use  
new gaskets and make sure they are seated prop-  
erly when tightening the nuts and bolts.  
RAYPAK, INC.  
2151 Eastman Avenue  
Oxnard, CA 93030  
26  
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LIMITEDPARTSWARRANTYECONOPAKWATERHEATERS  
MODELS WH - 0090 TO 0195  
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 (1) 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. Wesuggest  
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.  
27  
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Raypak, Inc., 2151 Eastman Avenue, Oxnard, CA 93030 (805) 278-5300 Fax (805) 278-5468  
Litho in U.S.A.  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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