Navien NPE-180A Installation Manual

Also see for NPE-180A: Installation manual Installation & operation manual Specification sheet Installation manual Service manual

Navien NPE-180A Installation Manual Manual pdf 15 page image

Installing the Water Heater 15To connect the gas supply:Determine the gas type and pressure for the water heater by1.referring to the rating plate.Perform a pressure test on the main gas supply line.2.Purge the gas line of any debris.3.Determine the proper size and type for the gas line. Refer to4.the tables that follow.Install full port valves on the gas supply line and water heater.5.Connect the gas supply line.6.Test the supply line, all connection points, and the water7.heater for gas leaks.UnionGas ShutoffValveGas SupplyGas Inlet AdapterBottom ViewPipe size : 1/2"~3/4"(inner diameter)3.3 Connecting the Gas SupplyWARNINGBefore connecting the gas supply, determine the gas type●and pressure for the water heater by referring to the ratingplate. Use only the same gas type indicated on the ratingplate. Using a different gas type will result in abnormalcombustion and malfunction of the water heater. Gassupplies should be connected by a licensed professionalonly.The appliance and its gas connection must be leak tested●before placing the appliance in operation.This water heater cannot be converted from natural gas●to propane or vice versa without a Navien gas conversionkit. Do not attempt a field conversion of this water heaterwithout a Navien gas conversion kit. Doing so will result indangerous operating conditions and will void the warranty.Navien recommends connecting the water heater as the first waterheater downstream of the gas meter, to ensure a sufficient gassupply.The water heater isrecommended to be the firstappliance to be connectedto the gas supply line.Gas Supply LineGas meter’s capacity ≥ Total gascapacity of connected appliances