Troubleshooting Guide
Start Up Conditions
CONDENSATION | THERMAL EXPANSION |
Whenever the water heater is filled with cold water, a certain amount of condensation will form while the burner is on. A
water heater may appear to be leakingwhen in fact the water is condensation. This usually happens when:
•When a new water heater is filled with cold water for the first time.
•When gas burns and water vapor isproduced in water heaters, particularly high efficiency models where flue tem- peratures are lower.
•When you use large amounts of hot water in a short time and the refill water is very cold.
Moisture from the products of combustion condense on the cooler tank surfaces and form drops of water which may fall onto the burner or other hot surfaces to produce a "sizzling" or "frying" noise.
Excessive condensation can cause pilot outage due to water run- ning down the flue tube onto the main burner and putting out the pilot.
Because of the suddenness and amount of water, condensation
water may be diagnosed as a "tank leak". After the water in the
tank warms up (about
Do not assume the water heater is leaking until there has been enough time for the water in the tank to warm up.
An undersized water heater will cause more condensation. The water heater must be sized properly to meet the family's
demands for hot water including dishwashers, washing machines and shower heads.
Excessive condensation may be noticed during the winter and
early spring months when incoming water temperatures are at their lowest.
Good venting is essential for a gas fired water heater to operate properly as well as to carry away products of combustion and water vapor.
SMOKE/ODOR
It is not uncommon to experience a small amount of smoke and odor during the initial
Water supply systems may, because of such events as high line pressure, frequent
mal expansion) and closed systems do not allow for the expan- sion of heated water.
The water within the water heater tank expands as it is heated and increases the pressure of the water system. If the relieving point of the water heater's
valve will relieve the excess pressure. The
expansion. This is an unacceptable condition and must be corrected.
It is recommended that any devices installed which could create a dosed system have a
Thermal | Expansion |
| Tank | Specifications |
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Model | JjTank Capacity | JDimensions |
| in_ | Pipe Fitting | ||||
Number | In Gallons | _et_r |
| _n__ |
| On | "Fank | ||
153.331020 | 2 | [ | 8inches | _12_in_:h_ |
| y'_"Male | |||
153.331050 | 5 | / 11 inches | 14_inches | I | _"Male | ||||
Expansion Tank Sizing Chart |
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| Inlet* |
| Water | Heater | Capacity | (Gallons) | |||
| IWater |
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Expansion | Pressure |
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40jA |
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Tank |
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Capacity | 50psi | 2 | [ | 2 | [ | 2 [ | 5 | , | 5 |
Needed | 60psi |
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| 7 |
| L 5- | |
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| 70Fsi |
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| 80psi | 2 | 5 |
| 5 | 5 |
| 5 |
*Highest recorded inlet water pressure in a 24 hour period or regulated water pressure.
NOTE: Expansion tanks are
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