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Is the discharge line from the PRV pitched downward and does it terminate 6 in. (152 mm) ❑ Elabove the drains? <br /> Is the discharge end of the line plain (unthreaded) and a minimum of 3/4 in. diameter? ❑ ❑ <br /> Is the discharge line material suitable for at least 180'F water? ❑ ❑ <br /> Did you take measures to protect the PRV and PRV discharge line from freezing? ❑ ❑ <br /> Have you verified the PRV is not plumbed with the condensate drain line? ❑ ❑ <br /> Have you verified the PRV is not plugged and that reducing fittings, valves, or other ❑ ❑ <br /> restrictions are not installed in the relief line? <br /> 6 CONDENSATE DRAIN YES NO <br /> If the condensate pump is installed, is it wired to deactivate the tankless water heater in ❑ ❑ <br /> the event of failure? For more information, refer to the "Condensate Pump Safety Switch <br /> Wiring" section of the manual. <br /> Did you verify the condensate drain pipe is as short as possible and has a downward ❑ ❑ <br /> itch toward the drain or condensate pump? <br /> Is all condensate drained and disposed of as per local codes? ❑ ❑ <br /> Did you use ONLY corrosion resistant materials for the condensate drain lines? ❑ ❑ <br /> Did you verify the condensate drain pipe along its entire length is at least the same ❑ ❑ <br /> diameter as the drain line (1/2 in. NPT)? <br /> Did you check to ensure the condensation drain lines are protected from freezing? ❑ ❑ <br /> If a floor pump is not available or the drain is above the level of the condensate drain, did ❑ ❑ <br /> you install a condensate pump? <br /> Have you verified the condensate drain line is not plumbed with the pressure relief valve? ❑ ❑ <br /> Have you confirmed the condensate drain line is not connected with an air conditioning ❑ ❑ <br /> evaporator coil drain? <br /> Have you verified an external condensate trap is not installed? (This tankless water heater ❑ ❑ <br /> has an integrated condensate trap.) <br /> Have you confirmed the end of the condensate drain pipe is open to atmosphere? ❑ ❑ <br /> 7 GAS SUPPLY YES NO <br /> Did you verify the gas system is appropriately sized? ❑ ❑ <br /> Did you verify the water heater is rated for the gas type supplied? ❑ ❑ <br /> Have you performed a gas line and connection leak test? ❑ ❑ <br /> Did you install a manual gas control valve in the gas line to the water heater? ❑ ❑ <br /> Is the inlet gas pressure within limits? ❑ ❑ <br /> Did you purge the gas line of any debris before connecting the water heater? ❑ ❑ <br /> Rinnai Tankless Water Heater Installation and Operation Manual 69 <br />