Lochinvar 000 - 500, CP-5M-4/08, 45, RSB-i&s-05, 000 Btu/hr Thermal Expansion, Cathodic Protection

Models: 000 Btu/hr 000 - 500 RSB-i&s-05 45 CP-5M-4/08

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THERMAL EXPANSION

THERMAL EXPANSION

A relief valve which discharges periodically may be due to thermal expansion in a closed system. A hot water supply boiler installed in a closed system, such as one with a backflow preventer or check valve installed in the cold water supply, shall be provided with means to control expansion. Contact the water supplier or local plumbing inspector on how to correct this situation.

Do not plug or cap the relief valve discharge!

CATHODIC PROTECTION

Hydrogen gas can be produced in a hot water system that has not been used for a long period of time (generally two weeks or more). Hydrogen gas is extremely flammable. To prevent the possibility of injury under these conditions, we recommend the hot water faucet be open for several minutes at the kitchen sink before you use any electrical appliance which is connected to the hot water system. If hydrogen is present, there will be an unusual sound such as air escaping through the pipe as the hot water begins to flow. There should be no smoking or open flames near the faucet at the time it is open.

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Lochinvar 000 - 500, CP-5M-4/08, 45 Thermal Expansion, Cathodic Protection, Do not plug or cap the relief valve discharge