WARNINGS
Pay Attention to These Terms
| DANGER: |
| Indicates the presence of immediate hazards which will cause severe person- |
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| al injury, death or substantial property damage if ignored. |
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| WARNING: |
| Indicates the presence of hazards or unsafe practices which could cause |
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| severe personal injury, death or substantial property damage if ignored. |
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| CAUTION: |
| Indicates the presence of hazards or unsafe practices which could cause |
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| minor personal injury or product or property damage if ignored. |
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| NOTE: |
| Indicates special instructions on installation, operation, or maintenance which |
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| are important but not related to personal injury hazards. |
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DANGER: Make sure the gas on which the heater will operate is the same type as that specified on the heater rating plate.
WARNING: Should overheating occur or the gas supply valve fail to shut, do not turn off or disconnect the electrical supply to the heater. Instead, shut off the gas supply at a location external to the heater.
WARNING - CALIFORNIA PROPOSITION 65: This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
WARNING: To minimize the possibility of improper operation, serious personal injury, fire, or damage to the heater:
•Always keep the area around the heater free of combustible materials, gasoline, and other flam- mable liquids and vapors.
•Heater should never be covered or have any blockage to the flow of fresh air to the heater.
WARNING: Do not use this heater if any part has been under water. Immediately call a qualified service technician to inspect the heater and to replace any part of the control system and any gas control which has been under water.
WARNING: Risk of electrical shock. More than one disconnect switch may be required to deenergize the equipment before servicing.
CAUTION: Operation of this heater in low- temperature systems requires special piping. Harmful internal condensation will occur if the inlet water temperature does not exceed 105°F. Warranty claims will be denied when condensation occurs.
CAUTION: If this heater is to be installed above radiation level, it must be provided with a low water
CAUTION: If this heater is to be installed in a negative or positive pressure equipment room, there are special installation requirements. Consult factory for details.
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