Laserfiche WebLink
Tighten the water heater connection <br />valves with care to avoid damage. <br />The gas connection fitting on all <br />water heaters is 'I. in. Prior to using an excess Flow valve (EFV) in the <br />'/, in. rigid pipe can be used; refer to gas line, check the manufacturer's minimum <br />the sizing tables on the proceeding and maximum flow capacity rating. An <br />pages for limitations. improperly sized EFV will not allow for a full <br />DO NOT use'/, in. corrugated flow of gas to the water heater and may cause <br />connectors or tubing as noise may improper operation. <br />occur. <br />�I s . <br />[Corrugated <br />When using flexible gas lines, ensure <br />that the pipe's inner diameter and <br />connector is sufficient to supply the <br />required BTUs. Also, ensure that the <br />flexible line has no crimps or tight <br />bends in it, as this will restrict gas <br />flow. <br />• When using rigid pipe, Navien <br />recommends the installation of <br />union on the gas supply line close <br />to the water heater, to facilitate any <br />future maintenance or service. <br />• Check with the local jurisdiction to <br />verify whether the use of 72 in. gas <br />pipe is approved in the area. <br />