A.O. Smith BTH 300 - THERMOMETERS (NOT SUPPLIED); WATER (POTABLE) HEATING AND SPACE HEATING; T&P VALVE DISCHARGE PIPE; CAUTION WATER DAMAGE HAZARD

42
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Water Damage Hazard
Temperature-Pressure Relief Valve discharge
pipe must terminate at adequate drain.
•
CAUTION
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T&P Valve Discharge Pipe Requirements:
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THERMOMETERS (NOT SUPPLIED)
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WATER (POTABLE) HEATING AND SPACE HEATING
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T&P VALVE DISCHARGE PIPE
Explosion Hazard
Temperature-Pressure Relief Valve
must comply with ANSI Z21.22-
CSA 4.4 and ASME code.
Properly sized temperature-
pressure relief valve must be
installed in opening provided.
Can result in overheating and
excessive tank pressure.
Can cause serious injury or death.