State Industries Water Heater TPG 140 140 User Manual

MODELS TPG-140-140 thru 600-2500  
INCLUDING TPX/TPO & TPD  
COMMERCIAL GAS, OIL AND GAS/OIL TANK-TYPE WATER HEATERS  
INSTALLATION OPERATION SERVICE MAINTENANCE LIMITED WARRANTY  
ASME  
CAUTION  
TEXT PRINTED OR OUTLINED IN RED CONTAINS  
INFORMATION RELATIVE TO YOUR SAFETY.  
PLEASE READ THOUROUGHLY BEFORE USING  
APPLIANCE.  
WARNING – PROPANE MODEL  
Water heaters for propane gas are different from natural gas models. A natural gas heater will not function  
safely on propane gas and no attempt should be made to convert a heater from natural gas to propane gas.  
Propane gas must be used with great caution. It is highly explosive and heavier than air. It collects first in the  
low areas making its odor difficult to detect. If propane gas is present or even suspected, do not attempt to  
find the cause yourself. Ventilate the room, then call your gas supplier or service agent. Keep area clear until  
a service agent has been called.  
PLACE THESE INSTRUCTIONS ADJACENT TO HEATER AND NOTIFY OWNER TO KEEP FOR FUTURE REFERENCE  
PRINTED IN U.S.A. 1202  
PART NO. 09063370T  
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The venting of the water heater should be inspected by a qualified  
service technician at the time of installation and periodically  
thereafter to ensure a down-draft condition does not exist.  
GENERAL SAFETY  
INFORMATION  
DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND  
VENTILATING AIR. ADEQUATE AIR FOR COMBUSTION AND  
VENTILATION MUST BE PROVIDED FOR SAFE OPERATION.  
PRECAUTIONS  
DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN  
UNDERWATER. Immediately call a qualified service technician  
to inspect the appliance and to replace any part of the control  
system and any gas control which has been under water.  
LIQUID PETROLEUM MODELS  
Water heaters for propane or liquefied petroleum gas (LPG) are  
different from natural gas models. A natural gas heater will not  
function safely on LP gas and no attempt should be made to  
convert a heater from natural gas to LP gas.  
IF THE UNIT IS EXPOSED TO THE FOLLOWING, DO NOT  
OPERATE HEATER UNTIL ALL CORRECTIVE STEPS HAVE  
BEEN MADE BY A QUALIFIED SERVICEMAN.  
LP gas must be used with great caution. It is highly explosive  
and heavier than air. It collects first in the low areas making its  
odor difficult to detect at nose level. If LP gas is present or even  
suspected, do not attempt to find the cause yourself. Ventilate  
the area, then call your gas supplier or service agent. Keep area  
clear until a service call has been made.  
1.  
2.  
3.  
4
EXTERNAL FIRE.  
DAMAGE.  
FIRING WITHOUT WATER.  
SOOTING.  
Heater must be protected from freezing downdrafts during  
shutdown periods.  
The presence of LP gas may be difficult to detect. The use of a  
propane gas detector is recommended.  
GROUNDING INSTRUCTIONS  
Only trained LP professionals should conduct the required safety  
checks in accordance with industry standards.  
This water heater must be grounded in accordance with the  
National Electric Code and/or local codes. These must be followed  
in all cases.  
EXTENDED NON-USE PERIODS  
This water heater must be connected to a grounded metal,  
permanent wiring system; or an equipment grounding conductor  
must be run with the circuit conductors and connected to the  
equipment grounding terminal or lead on the water heater.  
WARNING  
HYDROGEN GAS CAN BE PRODUCED IN A HOT WATER  
SYSTEM SERVED BY THIS HEATER THAT HAS NOT BEEN  
USED FOR A LONG PERIOD OF TIME (GENERALLY TWO  
WEEKS OR MORE). HYDROGEN GAS IS EXTREMELY  
FLAMMABLE. To reduce the risk of injury under these conditions,  
it is recommended that a hot water faucet be opened for several  
minutes before using any electrical appliance connected to the  
hot water system. If hydrogen is present, there will probably be  
an unusual sound such as air escaping through the pipe as the  
water begins to flow. THERE SHOULD BE NO SMOKING OR  
OPEN FLAME NEAR THE FAUCET AT THE TIME IT IS OPEN.  
CHEMICAL VAPOR CORROSION  
WARNING  
CORROSION OF THE FLUEWAYS AND VENT SYSTEM MAY  
OCCUR IF AIR FOR COMBUSTION CONTAINS CERTAIN  
CHEMICAL VAPORS WHICH BREAK DOWN INTO ACIDS AT  
HIGH TEMPERATURE. SUCH CORROSION MAY RESULT IN  
FAILURE AND RISK OF ASPHYXIATION.  
Spray can propellants, cleaning solvents, refrigerator and air  
conditioning refrigerants, swimming pool chemicals, calcium and  
sodium chloride (water softener salt), waxes, and process  
chemicals and typical compounds which are potentially corrosive.  
Do not store products of this sort near the heater. Also, air which  
is brought in contact with the heater should not contain any of  
these chemicals. If necessary, uncontaminated air should be  
obtained from remote or outside sources. The limited warranty is  
voided when failure of water heater is due to a corrosive  
atmosphere. (Refer to the limited warranty for complete terms  
and conditions).  
INSULATION BLANKETS  
Insulation blankets available to the general public for external  
use on gas water heaters are not approved for use on your  
State water heater. The purpose of an insulation blanket is to  
reduce the standby heat loss encountered with storage tank water  
heaters. Your State water heater meets or exceeds the ASHRAE/  
IES 90.1b-1992 standards with respect to insulation and standby  
loss requirements making an insulation blanket unnecessary.  
WARNING  
The application of an insulation blanket will void the warranty for  
this water heater. Furthermore, the application of an insulation  
blanket may interfere with the operation of this water heater,  
possibly resulting in property damage, injury, or death.  
IMPROPER COMBUSTION  
WARNING  
ATTIC AND/OR EXHAUST FANS OPERATING ON THE  
PREMISES WITH A WATER HEATER CAN RESULT IN CARBON  
MONOXIDE POISONING AND DEATH.  
HIGH ALTITUDE INSTALLATIONS  
Your State water heater has been designed to operate at altitudes  
above 2000 feet, provided that requirement was specified at the  
time of order. The firing rate will be specified on the water heater  
rating plate.  
OPERATING OF THESE FANS CAN PRODUCE A DOWN  
DRAFT IN THE AREA OF THE WATER HEATER PREVENTING  
THE PRODUCTS OF COMBUSTION FROM EXHAUSTING  
THROUGH THE CHIMNEY OR VENT PIPE.  
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Note: Some gas utility companies derate the heating value of the  
supplied gas at high elevations. Your authorized State Start-Up  
Agent must adjust for actual heating valve of the gas at the time  
of start-up.  
The water temperature is controlled by two thermostats. One  
thermostat is located near the top of the tank and the other is in  
the lower part of the tank. The upper thermostat must be set at  
least 5°F higher than the lower thermostat. In the case where the  
water heater has electronic thermostats, this differential has been  
factory set and cannot be changed.  
FEATURES  
The thermostat temperature dials are accessible by opening the  
control compartment cover.  
WATER TEMPERATURE CONTROL  
FIGURE 1  
WARNING  
A high limit switch interrupts the power burner operation should  
the water temperature reach 200°F.  
THIS WATER HEATER IS EQUIPPED WITH AN ADJUSTABLE  
THERMOSTAT TO CONTROL WATER TEMPERATURE. HOT  
WATER TEMPERATURES REQUIRED FOR AUTOMATIC  
DISHWASHER AND LAUNDRY USE CAN CAUSE SCALD  
BURNS RESULTING IN SERIOUS PERSONAL INJURY AND/  
OR DEATH. THE TEMPERATURE AT WHICH INJURY OCCURS  
VARIES WITH THE PERSON’S AGE AND TIME OF EXPOSURE.  
THE SLOWER RESPONSE TIME OF CHILDREN, AGED OR  
DISABLED PERSONS INCREASES THE HAZARDS TO THEM.  
NEVER ALLOW SMALL CHILDREN TO USE HOT WATER TAP,  
OR TO DRAW THEIR OWN BATH WATER. NEVER LEAVE A  
CHILD OR DISABLED PERSON UNATTENDED IN A BATHTUB  
OR SHOWER.  
The high limit switch must be manually reset by depressing the  
red button on the front of the control when water temperature  
drops to about 180°F. The manual reset high limit can be found  
inside the control compartment.  
INSTALLATION INSTRUCTIONS  
REQUIRED ABILITY  
INSTALLATION OR SERVICE OF THIS WATER HEATER IS  
REQUIRED TO BE PERFORMED BY AN AUTHORIZED STATE  
STARTUP AGENT. PLUMBING, AIR SUPPLY, VENTING, GAS  
SUPPLY AND ELECTRICAL WORK ARE REQUIRED.  
THE WATER HEATER SHOULD BE LOCATED IN AN AREA  
WHERE THE GENERAL PUBLIC DOES NOT HAVE ACCESS  
TO SET TEMPERATURES.  
SETTING THE WATER HEATER TEMPERATURE AT 120°F WILL  
REDUCE THE RISK OF SCALDS. Some states or provinces  
require settings at specific lower temperatures.  
UNCRATING  
The heater should be moved in the crate as close as possible to  
the installation site. Depending upon size, shipping weights range  
from about 1,300 to 4,500 pounds.  
Below you will find listed the appropriate time-to-burn relationship  
for normal adult skin. Short repeated heating cycles caused by  
small hot water uses can cause temperatures at the point of use  
to exceed the thermostat setting by up to 20°F (11°C). If you  
experience this type of use, you should consider using lower  
temperature settings to reduce scald hazards.  
The installer should be guided by the instructions furnished with  
the heater, local codes and utility company requirements.  
Preference should be given to codes and requirements where  
they differ from the heater furnished instructions.  
Temperature  
Setting  
Time to Produce 2nd & 3rd  
Degree Burns on Adult Skin  
Additional publications, which should guide the installer, include:  
180°F (82°C)  
170°F (77°C)  
160°F (71°C)  
150°F (65°C)  
140°F (60°C)  
130°F (54°C)  
120°F (49°C)  
Nearly Instantaneous  
Nearly Instantaneous  
About 1/2 Second  
About 1-1/2 Seconds  
Less than 5 Seconds  
About 30 Seconds  
More than 5 Minutes  
The latest version of the National Fuel Gas Code, ANSI Z223.1,  
from American Gas Association Laboratories, 8501 East  
Pleasant Valley Road, Cleveland, OH 44131.  
In Canada – CGA No. B149 (latest version), from Canadian  
Gas Association Laboratories, 55 Scarsdale Road, Don Mills,  
Ontario, Canada M3B 2R3.  
Valves for reducing point-of-use temperature by mixing cold and  
hot water are available. Also available are inexpensive devices  
that attach to faucets to limit hot water temperatures. Contact a  
licensed plumber or the local plumbing authority.  
Code for the installation of Heat Producing Appliances (latest  
version), from American Insurance Association, 85 John Street,  
New York, NY 11038.  
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The latest version of the National Electrical Code, NFPA No. A clearance of 24” should be maintained from serviceable parts,  
70. In Canada refer to Canadian Electrical Code C 22.1, from such as relief valve, power burner, thermostat and drain valve.  
National Fire Protection Association, 1 Batterymarch Park,  
MINIMUM INSTALLATION CLEARANCES  
Quincy, MA 02269-9101.  
TPG/TPX  
FRONT - 18 Inches  
BACK - 0 Inches  
TPO/TPD  
FRONT - 18 Inches  
Back - 6 Inches  
LOCATING THE HEATER  
When installing the heater, consideration must be given to proper  
location. Location selected should be as close to the stack or  
chimney as practicable, with adequate air supply and as  
centralized with the piping system as possible.  
TOP - 5 Inches  
LEFT SIDE - 0 Inches  
RIGHT SIDE - 0 Inches  
Top - 12 Inches  
LEFT SIDE - 6 Inches  
RIGHT SIDE - 6 Inches  
NOTE: If a chimney connector is used, the minimum clearance  
from the top of the unit to the connector is 18 inches.  
WARNING  
THERE IS A RISK IN USING FUEL BURNING APPLIANCES  
SUCH AS GAS WATER HEATERS IN ROOMS, GARAGES OR  
OTHER AREAS WHERE GASOLINE, OTHER FLAMMABLE  
LIQUIDS OR ENGINE DRIVEN EQUIPMENT OR VEHICLES ARE  
STORED, OPERATED OR REPAIRED. FLAMMABLE VAPORS  
ARE HEAVY AND TRAVEL ALONG THE FLOOR AND MAY BE  
IGNITED BY THE HEATER’S IGNITION SYSTEM OR MAIN  
BURNER FLAMES CAUSING FIRE OR EXPLOSION.  
AIR REQUIREMENTS  
WARNING  
FOR SAFE OPERATION, AN AMPLE SUPPLY OF AIR MUST  
BE PROVIDED FOR PROPER COMBUSTION AND  
VENTILATION AIR IN ACCORDANCE WITH SECTION 5.3, AIR  
FOR COMBUSTION AND VENTILATION, OF THE NATIONAL  
FUEL GAS CODE, NFPA-54/ANSI Z223.1 OR APPLICABLE  
PROVISIONS OF THE LOCAL BUILDING CODES. AN  
INSUFFICIENT SUPPLY OF AIR WILL RESULT IN A YELLOW,  
LUMINOUS BURNER FLAME, CAUSING CARBONING OR  
SOOTING OF THE HEAT EXCHANGER AND CREATING A RISK  
OF ASPHYXIATION. DO NOT OBSTRUCT THE FLOW OF  
COMBUSTION AND VENTILATION AIR.  
SOME LOCAL CODES PERMIT OPERATION OF GAS  
APPLIANCES IF INSTALLED 18 INCHES OR MORE ABOVE THE  
FLOOR. THIS MAY REDUCE THE RISK IF LOCATION IN SUCH  
AN AREA CANNOT BE AVOIDED.  
THE HEATER SHALL BE LOCATED OR PROTECTED SO IT IS  
NOT SUBJECT TO PHYSICAL DAMAGE BY A MOVING  
VEHICLE.  
UNCONFINED SPACE  
In buildings of conventional frame, brick or stone construction,  
unconfined spaces may provide adequate air for combustion.  
WARNING  
FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY  
OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST  
NEVER BE PLACED ON OR ADJACENT TO THE HEATER.  
OPEN CONTAINERS OF FLAMMABLE MATERIAL SHOULD  
NOT BE STORED OR USED IN THE SAME ROOM WITH THE  
HEATER.  
If the unconfined space is within a building of tight construction  
(buildings using the following construction: weather stripping,  
heavy insulation, caulking, vapor barrier, etc.), air for combustion,  
ventilation and draft hood dilution must be obtained from outdoors  
or spaces freely communicating with the outdoors. The installation  
instructions for confined spaces in tightly constructed buildings  
must be followed to ensure adequate air supply.  
THE HEATER MUST NOT BE LOCATED IN AN AREA WHERE  
IT WILL BE SUBJECT TO FREEZING.  
CONFINED SPACE  
LOCATE HEATER NEAR A FLOOR DRAIN. THE HEATER  
SHOULD BE LOCATED IN AN AREA WHERE LEAKAGE FROM  
THE TANK OR CONNECTIONS WILL NOT RESULT IN DAMAGE  
TO THE ADJACENT AREA OR TO LOWER FLOORS OF THE  
STRUCTURE.  
When drawing combustion and dilution air from inside a  
conventionally constructed building to a confined space, such a  
space shall be provided with two permanent openings, ONE IN  
OR WITHIN 12 INCHES OF THE ENCLOSURE TOP AND ONE  
IN OR WITHIN 12 INCHES OF THE ENCLOSURE BOTTOM.  
Each opening shall have a free area of at least one square inch  
per 1000 Btu/hr of the total input of all appliances in the enclosure,  
but not less than 100 square inches.  
WHEN SUCH LOCATIONS CANNOT BE AVOIDED, A SUITABLE  
METAL DRAIN PAN, ADEQUATELY DRAINED, SHOULD BE  
INSTALLED UNDER THE HEATER. Such pans should be  
fabricated with sides at least 2” deep, with length and width at  
least 2” greater than the diameter of the heater and must be piped  
to an adequate drain. The pan must not restrict combustion air  
flow.  
If the confined space is within a building of tight construction, air  
for combustion, ventilation and draft dilution must be obtained  
from outdoors. When directly venting with the outdoors or venting  
with the outdoors through vertical ducts, two permanent openings,  
located in the aforementioned manner, shall be provided. Each  
opening shall have a free area of not less than one square inch  
per 4000 Btu/hr of the total input of all appliances in the enclosure.  
If horizontal ducts are used, each opening shall have a free area  
This unit must be installed on a non-combustible surface.  
LEVELING  
The heater shall be installed level. If it is necessary to adjust the of not less than one square inch per 2000 Btu/hr of the total input  
of all appliances in the enclosure.  
heater, use metal shims under the channel-type skid base.  
Where an exhaust fan is installed in the same room with the boiler,  
sufficient openings for air must be provided in the walls.  
UNDERSIZED OPENINGS WILL CAUSE AIR TO BE DRAWN  
INTO THE ROOM THROUGH THE CHIMNEY OR OTHER  
CLEARANCES  
Provide ample clearance on all sides for installation, adjustment  
and replacement of burner, control components and other parts.  
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UNDESIRABLE OPENINGS, CAUSING POOR COMBUSTION.  
SOOTING MAY RESULT WITH AN INCREASED RISK OF  
ASPHYXIATION.  
VENT CONNECTOR  
The chimney vent connector diameter should be the same size  
as the heater flue outlet, see table 1. A minimum rise of 1/4” per  
foot of horizontal connector length must be maintained between  
the heater and chimney opening, fig. 2. The connector length  
should be kept as short as possible.  
THERMAL EXPANSION (CLOSED SYSTEM)  
Thermal expansion occurs in any hot water system when system  
water is heated or “recovered” during periods of non-use.  
TABLE 1  
If the system is operated in an “open” condition such as being  
connected directly to the city main, the volume of expanded water  
generated during the recovery periods can be dissipated back  
through the “open” connection to the city main so pressure cannot  
increase.  
TPG/TPX/TPO/TPD  
INPUT (KBTUh)  
140, 199  
FLUE OUTLET  
(INCHES)  
5
6
7
255, 270, 300  
400  
540, 600  
8
However, once a back flow preventer is installed to isolate system  
water from the public supply; or a pressure reducing valve is  
installed to protect a water meter; or any device preventing flow  
back into the cold water supply, the “open” condition becomes  
“closed”. During periods of temperature recovery and no usage,  
water expands and the pressure increases until a relief valve  
opens spilling hot water.  
720, 800, 1000  
1250, 1500  
1750, 2000  
2250, 2500  
10  
12  
14  
16  
BAROMETRIC DRAFT CONTROL ASSEMBLY  
A relief valve opening on pressure will flow small amounts of water,  
whereas relieving on temperature releases large amounts of water.  
Consult the section under “High Water Temperature” to determine  
the cause of the relief valve to open due to temperature.  
A double-acting barometric draft control assembly is provided with  
each unit. This assembly must be attached to the heater as shown  
in figure 2. The direction in which the outlet to the draft control  
assembly faces is arbitrary. This assembly must be fitted to the  
jacket cover such that it is plumb and level to the ground. Fasten  
the draft control assembly to the top cover using sheet metal  
screws at three locations, or more, as required.  
Since the water is not compressible, some provision must be made  
for THERMAL EXPANSION to protect the system from excessive  
pressures. Two options are:  
Refer to the instructions provided with the barometric damper for  
complete installation requirements.  
1. Install an expansion tank properly and adequately sized for  
the expanding volume of water.  
2. Install a pressure relief valve in the cold water supply line having  
a setting of at least 10lbs. below the system working pressure,  
located at or near a suitable drain. This valve will open at  
each heat cycle when there is no hot water demand on the  
system.  
Dampers or other obstructions must not be installed between the  
heater and the barometric draft control assembly.  
Barometric draft control counterweights can be adjusted for  
installation conditions by an authorized State Start-Up Agent. Any  
readjustment must be by authorized State Start-Up agent.  
Service problems or parts failure due to excessive pressure are  
NOT covered under warranty.  
The pressure and temperature relief valve supplied with the water  
heater IS NOT considered to be protection against thermal  
expansion.  
VENTING  
WARNING  
THE INSTRUCTIONS IN THIS SECTION ON VENTING MUST  
BE FOLLOWED TO AVOID CHOKED COMBUSTION OR  
RECIRCULATION OF FLUE GASES. SUCH CONDITIONS  
CAUSE SOOTING OR RISKS OF FIRE AND ASPHYXIATION.  
PROPER DRAFT CONTROLLER AND  
VENT PIPE INSTALLATION - FIGURE 2  
Heater must be protected from freezing downdrafts during  
shutdown periods.  
Remove all soot or other obstructions from chimney, which will  
retard free draft.  
VENT CONNECTION  
Vent connections must be made to an adequate stack or chimney.  
Refer to the National Fuel Gas Code or to the vent pipe  
manufacturer’s gas vent and chimney sizing table to properly  
design and size the venting system. Refer to Table 2 for the vent  
pipe size required for installation to the barometric draft control  
assembly outlet.  
Venting materials used for this category 1 appliance must be in  
accordance with the National Fuel Gas Code and all state and  
local requirements.  
NOTE: A NEGATIVE DRAFT MUST BE MAINTAINED IN VENT  
PIPING (-0.02 to -0.06).  
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TABLE 2  
CAPACITY OF PIPE - NATURAL GAS IN CUBIC FEET PER HOUR  
Maximum Based Upon Pressure Drop of 0.3” w.c. and Specific Gravity  
of 0.60 and Maximum Gas Pressure of .5 psig.  
CORRECTION FACTORS  
Specific Gravity  
Other than 0.60  
Pressure Drop  
Other than 0.3  
Pipe Length  
Pipe Size - Inches (IPS)  
In Feet  
10  
20  
30  
40  
50  
60  
70  
80  
1
1 1/4  
1050  
730  
590  
500  
440  
400  
370  
350  
320  
305  
275  
250  
225  
210  
1 1/2  
1600  
1100  
890  
760  
670  
610  
560  
530  
490  
460  
410  
380  
350  
320  
2
2 1/2  
3
4
Specific Multplier Pressure Multiplier  
520  
350  
285  
245  
215  
195  
180  
170  
160  
150  
130  
120  
110  
100  
3050  
2100  
1650  
1450  
1270  
1150  
1050  
990  
930  
870  
780  
710  
4800 8500 17500  
3300 5900 12000  
Gravity  
0.50  
Drop  
0.1  
0.2  
0.3  
0.4  
0.6  
0.8  
1.0  
2.0  
3.0  
4.0  
6.0  
8.0  
1.10  
1.00  
0.926  
0.867  
0.817  
0.775  
0.577  
0.815  
1.00  
1.16  
1.42  
1.64  
1.83  
2.58  
3.16  
3.65  
4.47  
5.15  
2700 4700  
2300 4100  
2000 3600  
1850 3250  
1700 3000  
1600 2800  
1500 2600  
1400 2500  
1250 2200  
9700  
8300  
7400  
6800  
6200  
5800  
5400  
5100  
4500  
4100  
3800  
3500  
0.60  
0.70  
0.80  
0.90  
1.00  
Propane - Air  
90  
1.10  
0.740  
100  
125  
150  
175  
200  
Propane  
1.55  
0.622  
1130  
1050 1850  
980 1700  
2000  
650  
610  
NOTE: Use Multiplier at right for other specific gravities and pressure drops.  
Where an existing chimney or vent is to be used, be sure that the  
WARNING  
chimney or vent has adequate capacity for the number and sizes  
of gas appliances being vented through it. Inspect the chimney  
or vent and remove all soot or other obstructions, which will retard  
free draft.  
THE PURPOSE OF A RELIEF VALVE IS TO AVOID EXCESSIVE  
PRESSURE OR TEMPERATURE INTO THE STEAM RANGE,  
WHICH MAY CAUSE SCALDING AT FIXTURES, TANK  
EXPLOSIONS, SYSTEM OR HEATER DAMAGE. NO VALVE IS  
TO BE PLACED BETWEEN THE RELIEF VALVE AND THE  
TANK.  
Vent piping making horizontal runs must have a minimum upward  
slope toward the chimney or vent of 1/4” per foot. Vent pipe  
length should be kept as short as possible. Be sure that the vent  
pipe does not extend beyond the inside wall of a chimney.  
A DRAIN LINE MUST BE CONNECTED TO THE RELIEF VALVE  
TO DIRECT DISCHARGE TO A SAFE LOCATION TO AVOID  
SCALDING OR WATER DAMAGE. THIS LINE MUST NOT BE  
REDUCED FROM THE SIZE OF THE VALVE OUTLET AND  
MUST NOT CONTAIN VALVES, RESTRICTIONS NOR SHOULD  
IT BE LOCATED IN FREEZING AREAS. DO NOT THREAD OR  
CAP THE END OF THIS LINE. RESTRICTED OR BLOCKED  
DISCHARGE WILL DEFEAT THE PURPOSE OF THE VALVE  
AND IS UNSAFE. DISCHARGE LINE SHALL BE INSTALLED  
TO ALLOW COMPLETE DRAINAGE OF BOTH THE VALVE AND  
LINE.  
In venting systems, where a continuous or intermittent back  
(positive) draft is found to exist, the cause must be determined  
and corrected. In some cases, a special vent cap may be required.  
WATER LINE CONNECTIONS  
The water heater may be installed by itself, or with a separate  
storage tank, on both single and two-temperature systems. When  
used with a separate storage tank, the circulation may be either  
by gravity or by means of a circulating pump.  
Your local code authority may have other specific relief valve  
requirements.  
SYSTEM CONNECTIONS  
GAS PIPING  
The system installation must conform to these instructions and to  
the local code authority having jurisdiction. Good practice requires  
that all heavy piping be supported.  
Contact your local gas service company to ensure that adequate  
gas service is available and to review applicable installation codes  
for your area.  
THERMOMETERS (Not supplied)  
Size the main gas line in accordance with Table 3. The figures  
shown are for straight lengths of pipe at 0.3 in. w.c. pressure  
drop, which is considered normal for low-pressure systems. Note  
that fittings such as elbows and tees will add to the pipe pressure  
drop.  
Thermometers should be obtained and field installed as shown  
in the installation diagrams.  
Thermometers are installed in the system as a means of detecting  
the temperature of the outlet water.  
Equivalent lengths of standard pipe in feet for listed fittings (add  
below values to Table 3).  
RELIEF VALVE  
Install vent lines from main gas regulator and (if applicable) a  
diaphragm gas valve. Vent line should be run to the outside of  
the building, terminating clear of windows or fresh air intakes.  
Outside terminal of vent should have a screen to prevent insects  
from building nests in vent pipe. The vent should terminate in a  
manner, which will preclude the possibility of water, snow, dirt or  
other matter from entering the line.  
This water heater has been provided with an ASME rated pressure  
and temperature relief valve.  
In addition to the appliance relief valve, each remote storage tank,  
which may be used in conjunction with this appliance, shall also  
be installed with a properly sized, rated and approved temperature  
(ANSI) and pressure (ASME) relief valve(s).  
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TABLE 3  
PURGING  
EQUIVALENT LENGTH OF FITTINGS IN FEET  
Gas line purging is required with new piping or systems in which  
air has entered.  
Pipe Size (IPS)  
1
1.25 1.5  
2
2.5  
3
4
Std. Tee through side 5.5 7.5 9.0 12.0 14.0 17.0 22.0  
Std. E11  
45°F E11  
Plug Cock  
2.7 3.7 4.3 5.5 6.5 8.0 12.0  
1.2 1.6 2.0 2.5 3.0 3.7 5.0  
3.0 4.0 5.5 7.5 9.0 12.0 16.0  
CAUTION  
PURGING SHOULD BE PERFORMED BY PERSONS  
EXPERIENCED IN THIS TYPE GAS SERVICE. TO AVOID RISK  
OF FIRE OR EXPLOSION, PURGE DISCHARGE MUST NOT  
ENTER CONFINED AREAS OR SPACES WHERE IGNITION  
CAN OCCUR. THE AREA MUST BE WELL VENTILATED AND  
ALL SOURCES OF IGNITION MUST BE INACTIVATED OR  
REMOVED.  
WARNING  
THE HEATER IS NOT INTENDED FOR OPERATION AT HIGHER  
THAN 13.8” WATER COLUMN (1/2 POUND PER SQUARE INCH)  
SUPPLY GAS PRESSURE. HIGHER GAS PRESSURE  
REQUIRES SUPPLEMENTAL REDUCING SERVICE  
REGULATION. EXPOSURE TO HIGHER GAS SUPPLY  
PRESSURE MAY CAUSE DAMAGE TO THE GAS CONTROLS  
WHICH COULD RESULT IN FIRE OR EXPLOSION. IF  
OVERPRESSURE HAS OCCURRED SUCH AS THROUGH  
IMPROPER TESTING OF GAS LINES OR EMERGENCY  
MALFUNCTION OF THE SUPPLY SYSTEM, THE GAS VALVE  
MUST BE CHECKED FOR SAFE OPERATION. MAKE SURE  
THAT THE OUTSIDE VENTS ON THE SUPPLY REGULATORS  
AND THE SAFETY VENT VALVES ARE PROTECTED AGAINST  
BLOCKAGE. THESE ARE PARTS OF THE GAS SUPPLY  
SYSTEM, NOT THE HEATER. VENT BLOCKAGE MAY OCCUR  
DURING ICE STORMS.  
GAS METER SIZE – CITY GASES ONLY  
Be sure that the gas meter has sufficient capacity to supply the  
full rated gas input of the water heater as well as the requirements  
of all other gas fired equipment supplied by the meter. If gas  
meter is too small, request the gas company to install a meter  
having adequate capacity.  
GAS PRESSURE REGULATOR  
DO NOT SUBJECT COMBINATION GAS VALVE TO INLET GAS  
PRESSURE OF MORE THAN 14 I.W.C. A SERVICE  
REGULATOR IS NECESSARY IF HIGH GAS PRESSURES ARE  
ENCOUNTERED.  
IT IS IMPORTANT TO GUARD AGAINST GAS VALVE FOULING  
FROM CONTAMINANTS IN THE GAS WAYS. SUCH FOULING  
MAY CAUSE IMPROPER OPERATION, FIRE OR EXPLOSION.  
The gas pressure regulator vent line must be vented to the  
outside of the building.  
IF COPPER SUPPLY LINES ARE USED THEY MUST BE  
INTERNALLY TINNED AND CERTIFIED FOR GAS SERVICE.  
POWER BURNER  
BEFORE ATTACHING THE GAS LINE, BE SURE THAT ALL GAS  
PIPE IS CLEANED ON THE INSIDE.  
For information relating to the power burner supplied with this  
water heater, refer to the power burner manual provided.  
TO TRAP ANY DIRT OR FOREIGN MATERIAL IN THE GAS  
SUPPLY LINE, A DIRT LEG (SOMETIMES CALLED A SEDIMENT  
TRAP OR DRIP LEG) MUST BE INCORPORATED IN THE  
PIPING. THE DIRT LEG MUST BE READILY ACCESSIBLE AND  
NOT SUBJECT TO FREEZING CONDITIONS. INSTALL IN  
ACCORDANCE WITH RECOMMENDATIONS OF SERVING GAS  
SUPPLIERS. REFER TO THE NATIONAL FUEL GAS CODE.  
LIFTING LUGS  
This water heater is supplied with lifting lugs. Prior to lifting, insure  
that the lugs are threaded into their receptacles as tight as  
possible.  
These lugs may be removed after installation. Sheet metal covers  
are provided to cover the receptacle openings.  
To prevent damage, care must be taken not to apply too much  
torque when attaching gas supply pipes to gas valve inlet.  
WIRING  
Apply joint compounds (pipe dope) sparingly and only to the male  
threads of pipe joints. Do not apply compound to the first two  
threads. Use compounds resistant to the action of liquefied  
petroleum gases.  
The rating plate provides the electrical information needed to size  
the water heater branch supply circuit.  
Typical water heater electrical diagrams are provided in this  
manual (pages 9 and 10). The actual diagram, corresponding to  
each water heater, is provided with each water heater, and may  
differ from the diagrams shown in this manual.  
DISCONNECT THE APPLIANCE AND ITS MANUAL GAS  
SHUTOFF VALVE FROM THE GAS SUPPLY PIPING SYSTEM  
DURING ANY SUPPLY PRESSURE TESTING EXCEEDING  
1/2 PSIG. GAS SUPPLY LINE MUST BE CAPPED WHEN  
DISCONNECTED FROM THE HEATER. FOR TEST  
PRESSURES OF 1/2 PSIG OR LESS, THE APPLIANCE NEED  
NOT BE DISCONNECTED, BUT MUST BE ISOLATED FROM  
THE SUPPLY PRESSURE TEST BY CLOSING THE MANUAL  
GAS SHUTOFF VALVE.  
The TPG unit burner is wired to the water heater control  
compartment as shown in the following diagram. The electrical  
service should be connected to the N & L Terminals located in  
the control compartment. Ground from control compartment to  
suitable ground.  
BEFORE PLACING THE HEATER IN OPERATION, CHECK FOR  
GAS LEAKAGE. USE SOAP AND WATER SOLUTION OR  
OTHER MATERIAL ACCEPTABLE FOR THE PURPOSE OF  
LOCATING GAS LEAKS. DO NOT USE MATCHES, CANDLES,  
FLAME OR OTHER SOURCES OF IGNITION FOR THIS  
PURPOSE.  
All electrical work must be installed in accordance with the National  
Electrical Code (latest version) and local requirements. AN  
ELECTRICAL GROUND IS REQUIRED TO REDUCE THE RISK  
OF ELECTRICAL SHOCK. DO NOT ENERGIZE THE BRANCH  
CIRCUIT BEFORE THE HEATER TANK IS FILLED WITH  
WATER.  
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TYPICAL WIRE DIAGRAM  
TPG, 270 - 2,500 KBTUH  
TPO, 800 - 2,500 KBTUH  
TPD, 400 - 2,500 KBTUH  
TYPICAL WIRE DIAGRAM  
TPG, 140 - 255 KBTUH  
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TYPICAL WIRE DIAGRAM  
TYPICAL WIRE DIAGRAM  
TPO, 140 - 720 KBTUH  
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The time to ask any questions you may have about your unit is  
when the State Authorized TPG/TPO/TPD Start-Up Agent is there.  
Please do not hesitate to ask the agent any questions which you  
may have regarding the units start-up, operation or maintenance.  
TWO UNIT MANIFOLD  
INSTALLATION  
A MAINTENANCE section is included at the rear of this manual.  
Any service required should be performed by an Authorized State  
Service Agent.  
Assure water flow balance of all units. Without this balance, the  
full water heating and storage potential of the system cannot be  
achieved. Otherwise, the units with the higher water flow may  
have a shortened life.  
GENERAL  
Dimensions shown are for minimum space occupied by complete  
assemblies. Service space in front of units must be included.  
NEVER OPERATE THE HEATER WITHOUT FIRST BEING  
CERTAIN IT IS FILLED WITH WATER AND A TEMPERATURE  
AND PRESSURE RELIEF VALVE IS INSTALLED IN THE RELIEF  
VALVE OPENING OF THE HEATER.  
MODEL  
MANIFOLD SIZE  
TPX/TPG/TPO/TPD - 140  
TPX/TPG/TPO/TPD - 200  
TPX/TPG/TPO/TPD - 300  
TPX/TPG/TPO/TPD - 400  
TPX/TPG/TPO/TPD - 600  
2”  
2 1/2”  
2 1/2”  
3”  
CAUTION  
Before proceeding with the operation of the unit make sure the  
water heater and system are filled with water and all air is expelled.  
3”  
FILLING  
1. Close the heater drain valve by turning handle clockwise.  
2. Open a nearby hot water faucet to permit the air in the system  
to escape.  
3. Fully open the cold water inlet pipe valve allowing the heater  
and piping to be filled.  
4. Close the hot water faucet as water starts to flow.  
5. The heater is ready to be operated.  
COMBUSTION AIR REQUIREMENTS AND  
SERVICE RECOMMENDATIONS  
1. In order to fire correctly, the burner requires an adequate supply  
of combustion air. Ventilation to the boiler room should be  
provided on the basis of one square inch of free air opening  
for each 1000 BTU/HR input. This excludes the requirements  
for any other fired equipment in the room. The boiler room  
should not become excessively hot and under no  
circumstances should be under negative pressure.  
OPERATION  
IMPORTANT  
AUTHORIZED START-UP REQUIRED. Start-up by a  
State Authorized TPG/TPX/TPO/TPD Start-Up Agent is  
required on the models covered in this manual. Start-up and  
Operation of the units covered by this manual by other than  
a State Authorized TPG/TPX/TPO/TPD Start-Up Agent will void  
the warranty.  
2. The burner must be set up initially and serviced at regular  
intervals (suggested semi-annually) by a trained serviceman  
using the proper instruments. During this semi-annual service,  
primary safety devices should be tested under operating  
conditions. Failure to routinely test primary safety devices may  
cause hazards. Suggested test procedures are listed in the  
following paragraphs. Failure to maintain the correct burner  
settings may result in inefficient gas consumption, premature  
wear of burner components, or explosion hazard.  
If you have not already done so, contact your local State Sales  
Representative or Authorized TPG/TPX/TPO/TPD Start-Up Agent  
and set-up a date for the start-up service.  
The Authorized Start-Up Agent will when they come out to  
start-up the unit(s) complete one of the following forms for each  
unit you have and submit it to State Industries to activate your  
warranty:  
3. The correct test instruments are:  
CO2 indicator or 02 analyzer  
CO indicator  
Start-Up  
Form No.  
09063511  
09063510  
09063512  
09063514  
09063515  
Covering Models  
Stack thermometer  
TPG Models, 140 - 255 kBTUH  
TPG Models, 270 - 2500 kBTUH  
TPD Models, 140 - 2500 kBTUH  
TPO Models, 140 - 2500 kBTUH  
TPX Models, 400 - 2000 kBTUH  
Draft gauge or inclined manometer  
U-tube manometer or calibrated 0-10” and 0-35” w.c.  
pressure gauge  
Combination volt/ammeter.  
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Suggested safety device test procedures are:  
DRAINING  
A. While heater is operating, turn valve, main burner and pilot  
gas line manual gas cocks to the OFF position. Burner should  
shutdown within 3-4 seconds and lockout on flame failure,  
requiring reset of the flame safeguard device.  
The heater must be drained if it is to be shut down or exposed to  
freezing temperatures. Maintenance and service procedures may  
also require draining the heater.  
1. Tun off the heater electrical disconnect switch.  
2. Close the cold water inlet valve to heater.  
3. Open a nearby hot water faucet to vent the system.  
4. Open the heater drain valve.  
B. While heater is operating, lower the setting of each of (2)  
operating thermostats (one at a time). During this setting  
change, the burner should shutdown when the called for  
temperature is less than the temperature indicated on the  
thermometer. Restore the settings to original values and burner  
should restart.  
5. If the heater is being drained for an extended shutdown, it is  
suggested the drain valve be left open during this period.  
Should any of the above operating test fail, replace the involved  
component.  
• Follow FILLING instructions when restoring hot water service  
MAINTENANCE  
SEDIMENT REMOVAL  
GENERAL  
Waterborne impurities consist of fine particles of soil and sand  
which settle out and form a layer of sediment on the bottom of the  
tank.  
Water heater maintenance includes periodic tank flushing and  
cleaning, and removal of lime scale. The power burner should  
be inspected and adjusted to maintain proper combustion. Refer  
to the following table. A periodic inspection of the venting system  
should be made. Where used, the water heating system  
circulating pump should be oiled.  
For convenience, sediment removal and lime scale removal  
should be performed at the same time.  
LIME SCALE REMOVAL  
KEEP APPLIANCE AREA CLEAR AND FREE FROM  
COMBUSTIBLE MATERIALS, GASOLINE AND OTHER  
FLAMMABLE VAPORS AND LIQUIDS.  
The amount of calcium (lime) released from water is indirect  
proportion to water temperature and usage. The higher the water  
temperature or water usage, the more lime deposits are dropped  
out of the water. This is the lime scale which forms in pipes, heaters  
and on cooking utensils.  
FLUSHING  
1. Turn off the heater electrical disconnect switch.  
Lime accumulation not only reduces the life of the equipment but  
also reduces efficiency of the heater and increases fuel  
consumption.  
• For convenience, the switch on the outside of the control  
compartment can be used.  
2. Open the drain valve and allow water to flow until it runs clean.  
3. Close the drain valve when finished flushing.  
4. Turn on the heater electrical disconnect switch.  
MAINTENANCE SCHEDULE  
Component  
Operation  
Flushing  
Sediment  
Removal  
Lime Scale  
Removal  
Inspect  
Interval  
Monthly  
Required  
Tank  
Semi-Annually  
UN•LIME®  
Delimer  
As Required  
Semi-Annually  
Relief Valve  
Power Burner  
Motor(1)  
SAE No. 20  
non-detergent  
motor oil  
Inspect  
Quarterly  
Power Burner  
and Ignition  
Device(2)  
Combustion  
test kit &  
Inspection  
Semi-Annually  
test  
specifications  
Main Burner  
Flue Baffle  
Pipe(3)  
Check Flame  
Cleaning  
Annually  
As Required  
Wire Brush  
Vent System  
and Barometric  
Damper  
(1) If furnished with oiling provisions  
(2) If flange gasket is damaged, it must be repaired.  
(3) TPO and TPD Only.  
Inspect  
Semi-Annually Draft Gauge  
The usage of water softening equipment greatly reduces the  
hardness of the water. However, this equipment does not always  
remove all of the hardness (lime). For this reason it is  
recommended that a regular schedule for deliming be maintained.  
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The depth of lime build-up should be measured periodically. check the relief valve, lift the lever at the end of the valve several  
Heaters will have about 3” of lime build-up when the level of lime times. The valve should seat properly and operate freely.  
has reached the bottom of the cleanout opening or about 1” of  
lime build-up if it has reached the drain valve opening. A schedule  
for deliming should be set-up; based on the amount of time it  
BEFORE MANUALLY OPERATING THE VALVE, MAKE SURE  
would take for a 1” build-up of lime.  
CAUTION  
THAT A DRAIN LINE HAS BEEN ATTACHED TO THE VALVE  
TO DIRECT THE DISCHARGE TO AN OPEN DRAIN. FAILURE  
Example 1 =  
Initial inspection, after 1 year, shows 1/2” of lime  
accumulation. Therefore, the heater can be  
delimed once a year.  
TO TAKE THIS PRECAUTION COULD MEAN CONTACT WITH  
EXTREMELY HOT WATER PASSING OUT OF THE VALVE  
DURING THIS CHECKING OPERATION.  
Example 2 =  
Initial inspection, after 1 year, shows 2” of lime  
accumulation. Therefore, the heater should be  
delimed every 3 months.  
If the temperature and pressure relief valve on the heater  
discharges periodically or continuously, it may be due to the  
thermal expansion of water in a closed water supply system, or it  
may be due to a faulty relief valve.  
Following are the instructions for performing some of the  
recommended maintenance. Power burner inspection and  
adjustment should be performed by a competent technician.  
Thermal expansion is the normal response of water when it is  
heated. In a closed system, thermal expansion will cause the  
system pressure to increase until the relief valve actuation  
pressure is equaled. Then, the relief valve will open, allowing  
some water to escape slightly lowering the pressure. (See  
THERMAL EXPANSION Section of pages 5 and 6).  
Heater failure due to excessive lime build-up voids the warranty.  
Sediment and lime scale removal may be accomplished through  
the cleanout opening furnished on the heater. The heater must  
be drained, see DRAINING, before removing cleanout cover on  
tank.  
Contact your water supplier or local plumbing inspector on how  
to control this situation.  
To dissolve and remove the more stubborn mineral deposits,  
UN•LIME Professional Delimer should be used.  
ABOVE ALL, DO NOT PLUG THE TEMPERATURE AND  
PRESSURE RELIEF VALVE. THIS IS NOT A SOLUTION AND  
CAN CREATE A HAZARDOUS SITUATION.  
UN-LIME Delimer is an easy to handle patented food grade acid  
formulated specifically for lime scale removal from all types of  
water using equipment. Available in 1 gallon (part no. 4763) and  
5 gallon (part no. 4813) sizes. Hydrochloric acids are not  
recommended for use on glass-lined tanks.  
POWER BURNER  
KEEP THE AREA AROUND THE BURNER CLEAR AND FREE  
OF COMBUSTIBLE MATERIALS, GASOLINE OR OTHER  
FLAMMABLE LIQUIDS OR VAPORS. DO NOT OBSTRUCT  
BURNER AIR OPENINGS OR VENTILATION GRILLES FOR  
COMBUSTION AIR. REMOVE LINT ACCUMULATION FROM  
AIR INTAKE GRILL.  
Form no. 4800, entitled, “Why, When and How”, describes tank  
cleaning methods and materials. UN•LIME and the booklet may  
be obtained through your State dealer or distributor.  
To clean heater through cleanout opening, proceed as follows:  
At least annually, contact a qualified service agency for burner  
cleaning and other routine maintenance.  
1. Turn off water inlet valve, the heater electrical disconnect switch  
and open drain valve.  
CLEANING FLUES-TPO & TPD ONLY  
2. Remove outer cover plate from lower side of heater jacket.  
3. Remove plug from cleanout opening.  
The following describes how to gain access to the tank flues for  
cleaning if necessary.  
• Place a short pipe nipple into the tank to extend beyond  
the heater jacket.  
1. Turn off the heater electrical disconnect switch.  
The switch on the outside of the control compartment  
may be used.  
4. Remove lime, scale and sediment using care not to damage  
the glass coatings inside the tank.  
2. Remove the vent connector from on top the heater.  
5. Remove the nipple.  
3. Remove the jacket top from the heater by taking out the screws  
and lifting it off.  
6. Replace cleanout plug.  
7. Follow filling instructions when restoring hot water service..  
8. Check for water leakage and correct as necessary.  
9. Replace outer jacket cover plate.  
The insulating pad should then be lifted out.  
4. Take out the screws holding the flue gas collector top to the  
tank and lift off.  
5. The flue baffles may now be removed by lifting out.  
RELIEF VALVE  
The flue baffles are flexible enough to bend for removal  
within headroom.  
At least twice a year, the temperature and pressure relief valve  
should be checked to ensure that it is in operating condition. To  
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6. Using a wire brush, remove soot from flue passages in heater  
tank.  
• If the heater was installed when incoming water temperature  
was warm, colder water creates the effect of less hot water.  
5. Look for hot water wastage and leaking or open hot water  
faucets.  
CAUTION  
While cleaning tank flue passages, care must be taken that brush  
does not come in contact with the combustion chamber lining as  
damage could occur.  
6. Sediment or lime scale may be affecting water heater operation.  
Refer to MAINTENANCE for details.  
If burner flue collector flange gaskets are damaged, replace.  
7. Heater or burner may be dirty.  
VENT SYSTEMS  
• Clean all heater flue pipes and flue connector, see  
MAINTENANCE.  
Examine the vent system every six months for obstruction and/or  
deterioration of vent piping. Remove any soot or obstructions and  
replace damaged vent piping.  
• Have burner properly cleaned and readjusted.  
8. Burner may not be firing at proper rate.  
BAROMETRIC DRAFT CONTROL  
• Check gas pressure, see burner manufacturer’s instruction  
manual.  
The heater is equipped with a double acting barometric draft  
control. The damper gate must pivot freely in the ring guides.  
9. Burner fan wheel may be dirty.  
10.Draft regulator may be stuck.  
• Check to see if vane swings freely. Clean, if vane is stuck.  
11.Reset button or burner flame safeguard primary control has  
operated.  
WATER IS TOO HOT  
1. Water temperature control may be set too high.  
2. If lowering the control setting does not reduce the water  
temperature, contact your dealer.  
FIGURE 3  
WATER HEATER MAKES NOISE  
To test gate for operation, gently tap gate and observe. DO NOT  
OIL.  
1. Sediment or lime scale accumulations cause noises when the  
heater is operating.  
The red solid fuel tabs supplied with the draft regulator must be  
removed (See instructions supplied with Draft Regulator).  
• The sounds are normal, however, the tank bottom should  
be cleaned. Refer to MAINTENANCE for details.  
TROUBLESHOOTING  
2. Some of the electrical components of the water heater make  
sounds, which are normal.  
NOT ENOUGH OR NO HOT WATER  
• Contacts click or snap as the heater starts and stops.  
• Transformers often hum.  
1. Be certain the electrical disconnect switch serving the water  
heater is in the ON position.  
• The outside of the control compartment and the power burner  
housing also have switches.  
WATER LEAKAGE IS SUSPECTED  
1. Check to see if the water heater drain valve is tightly closed.  
Also check the cleanout-opening plug for leakage.  
2. Check the fuses  
• The electrical disconnect switch usually contains fuses.  
2. The apparent leakage may be condensation, which forms on  
cool surfaces of the heater and piping.  
3. The capacity of the heater may have been exceeded by a large  
demand for hot water.  
3. If the outlet of the relief valve is leaking it may represent:  
• Excessive water pressure.  
• Large demands require a recovery period to restore water  
temperature.  
• Excessive water temperature.  
• Faulty relief valve.  
4. Colder incoming water temperature will lengthen the time  
required to heat water to the desired temperature.  
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Excessive water pressure is the most common cause of relief  
valve leakage. It is often caused by a “closed system”. If a  
check valve is in the inlet system it will not permit the expanded  
hot water volume to equalize pressure with the main. The  
relief valve must release this water or the water heater or  
plumbing system will be damaged.  
provision to avoid water logging.  
REPLACEMENT PARTS  
Replacement parts may be ordered through authorized servicers  
or distributors, refer to your local Yellow Pages for where to call  
or contact State Water Heaters, 500 Lindahl Parkway,  
Ashland City, TN 37015. When ordering parts, be sure to state  
the quantity, part number and description of the item including  
the complete model and serial number as it appears on the  
product. Refer to the parts list for more information.  
When such a condition is encountered, local codes or  
inspection agency should be consulted to determine which  
system is acceptable in your area. These may consist of:  
• Installation of a second relief valve with lower setting than  
the primary relief valve.  
For additional troubleshooting information, refer to the power  
burner manual.  
• An expansion tank of suitable size and pressure rating and  
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Model TPG/TPX/TPO/TPD Limited Warranty  
CERTIFIED FACTORY START - UP REQUIRED  
To activate your warranty, contact your local sales representative or Authorized Start-up Agent to arrange for a FREE Certified Start-up.  
State Water Heaters, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater.  
1. THE TANK  
If the glass lined tank in this water heater shall prove upon examination by the warrantor to have leaked due to natural corrosion from potable water  
therein, during the first THREE years after initial installation, the warrantor will at its option, provide a replacement State water heater of equivalent  
size and current model, less burner and controls. Some government agencies are requiring energy efficient standards for water heaters. In the  
event regulations prohibit sale of a model of equivalent size and construction, State Water Heaters will provide a model which complies with the  
regulations of your area, in which case the consumer will be charged the difference in price between the like replacement and the energy efficient  
model required. The warranty on the replacement water heater will be limited to the unexpired term of the original warranty.  
2. ALL OTHER PARTS  
If within ONE year after initial installation of this water heater, any part or portion shall prove upon examination by the warrantor to be defective in  
material or workmanship, the warrantor will repair such part or portion at its option.  
3. CONDITIONS AND EXCEPTIONS  
This warranty shall apply only if a certified factory start-up was performed and if the water heater is installed in accordance with local plumbing and  
building codes, ordinances and regulations, the printed instructions provided with it and good industry practices. In addition, a temperature and  
pressure relief valve, approved by the American Society of Mechanical Engineers, must have been installed.  
a) This warranty shall apply only when the heater is:  
(1) owned by the original purchaser.  
(2) sized in accordance with proper sizing techniques for commercial water heaters.  
(3) bearing a rating plate which has not been altered, defaced or removed except as required by the warrantor.  
(4) used in an open system, or in a closed system with a properly sized and installed thermal expansion tank.  
(5) fired with the fuel for which it was factory built.  
(6) fired at the factory rated input.  
(7) used at temperatures not exceeding the maximum setting of its thermostat;  
(8) used at water pressure not exceeding the working pressure shown on the water heater;  
(9) used when operated free from the damaging effects of uncontrolled water hammer;  
(10) used when filled with potable water, free to circulate at all times and the tank free of damaging water sediment or scaled deposits;  
(11) in a non-corrosive and not-contaminated atmosphere;  
(12) in its original installation location;  
(13) used with factory approved anode(s) installed;  
(14) in the United States, its territories or possessions, and Canada.  
b) Any accident to the water heater, any misuse, abuse (including freezing) or alteration of it, any operation of it in a modified  
form, or any attempt to repair tank leaks will void this warranty.  
c) This warranty is void if a device acting as a backflow prevention device (check valves etc.) is installed in the cold water supply the heater is  
connected to, unless an effective method of controlling thermal expansion is also installed at the heater(s) and operational at all times. The  
relief valve installed on the heater is not an acceptable method.  
4. SERVICE AND REPAIR EXPENSES  
Under the limited warranty the warrantor will provide only a replacement water heater or part thereof. The owner is responsible for all other costs.  
Such costs may include but are not limited to:  
a) Labor charges for service removal, repair or reinstallation of the water heater or any component part;  
b) Shipping, delivery, handling, and administrative charges for forwarding the new heater or replacement part from the nearest distributor and  
returning the claimed defective heater or part to such distributor.  
c) All cost necessary or incidental for any material and/or permits required for installation of the replacement heater or part.  
5. LIMITATIONS ON IMPLIED WARRANTIES  
Implied warranties, including the warranty of merchantability imposed on the sale of this heater under state law are limited to one (1) year duration  
for the heater or any of its parts. Some states do not allow limitation on how long an implied warranty lasts, so the above limitation may not apply  
to you.  
6. CLAIM PROCEDURE  
Any claim under the warranty should be initiated with the dealer who sold the heater, or with any other dealer handling the warrantor’s products.  
If this is not practicable, the owner should contact:  
State Water Heaters  
500 Lindahl Parkway  
Ashland City, TN 37015  
a) The warrantor will only honor replacement with identical or similar water heater or parts thereof, which are manufactured or distributed by the  
warrantor.  
b) Dealer replacements are made subject to in-warranty validation by warrantor.  
7. DISCLAIMERS  
NO OTHER EXPRESS WARRANTY HAS BEEN OR WILL BE MADE IN BEHALF OF THE WARRANTOR WITH RESPECT TO THE HEATER  
OR THE INSTALLATION, OPERATION, REPAIR OR REPLACEMENT OF THE HEATER. THE WARRANTOR SHALL NOT BE RESPONSIBLE  
FOR WATER DAMAGE, LOSS OF USE OF THE UNIT, INCONVENIENCE, LOSS OR DAMAGE TO PERSONAL PROPERTY OR OTHER  
CONSEQUENTIAL DAMAGE. THE WARRANTOR SHALL NOT BE LIABLE BY VIRTUE OF THIS WARRANTY OR OTHERWISE FOR DAMAGE  
TO ANY PERSONS OR PROPERTY, WHETHER DIRECT OR INDIRECT, AND WHETHER ARISING IN CONTRACT OR IN TORT.  
a) Some states do not allow the exclusion or limitation of the incidental or consequential damage, so the above limitations or exclusions may  
not apply to you  
b) This warranty gives you specific legal rights, and you may also have other rights, which may vary, from state to state.  
Fill in the following for your own reference. KEEP IT. Registration is not a condition of warranty. The model and serial number are found on the  
heater’s rating plate.  
Model No. _____________________ Serial No. ______________________________________ Date Installed ___________________  
Dealer’s Name __________________________________________________________________________________________________________  
Dealer’s Address __________________________________________________________________Phone Number _________________________  
City and State _____________________________________________________________________ Zip _________________________________  
KEEP THIS WARRANTY POSTED ADJACENT TO THE HEATER FOR FUTURE REFERENCE.  
16  
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