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--- Approved Ballcock <br /> Installation: <br /> f M.H.D. 130 (e) (9) (1) <br /> f <br /> WW <br /> 1. All flush tanks shall be equipped with an approved <br /> anti-siphon ballcock. <br /> 2. The ballcock shall deliver water through either an air <br /> gap or vacuum breaker. <br /> 3. The ballcock should be marked with a critical level <br /> 4. The critical level of the ballcock shall be one (1) <br /> inch above the top of the overflow. <br /> 5. -- In the-absence of a "C-L" marking, the bottom of the <br /> vacuum breaker shall be taken as the "C-L". <br /> 6. The overflow tube shall not be cutoff, as this will <br /> result in an incomplete flush. <br /> T & P Relief Valves Required: INSTALLATION <br /> 130 (f) (2) <br /> DIRECT SIDE TAPPING DIRECT TOP TAPPING <br /> FOR DRAIN <br /> EXTERNAL FLUE HEATERS <br /> Use maximum length exten- <br /> sion thermostat. P& T RELIEF VALVE <br /> VACUUM RELIEF <br /> �— VALVE <br /> AX. 6" ' <br /> COLD HOT <br /> TOP HOT OUTLET LINE <br /> D Z :DRAIN <br /> Z ` <br /> Q HOT OUT <br /> 0 <br /> FOR <br /> INTERNAL FLUE HEATERS <br /> Use short length thermostat. TEMPERATURE SENSING ELEMENT <br /> MUST BE IMMERSED IN THE WATER <br /> WITHIN THE TOP 6"OF THE TANK. <br /> Use standard or extra length ex- <br /> tension thermostat <br />