Navien NPE-180A Service Manual

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

Contents

Navien NPE-180A Service Manual Manual pdf 13 page image

Version 2.2112 NPE Service ManualCAUTION● Do not attempt to repair or replace any part of the waterheater, unless it is specifically recommended in thismanual.For all other service, contact an authorized technician orlicensed professional. Improper adjustments, alterations,service, or maintenance may lead to property damage,personal injury, or death and will void your warranty.● Do not operate the water heater if you feel something iswrong with it.Doing so may result in product damage or personal injury.● Do not allow children to operate or access the waterheater.Doing so may result in product damage or personal injury.● Do not attempt to change the water temperature whilethe water heater is being used.Doing so may result in personal injury.● Do not turn on the water heater unless the water and gassupplies are fully opened.Doing so may damage the water heater.● Do not turn on the water if the cold water supply shut-off valve is closed.Doing so may damage the water heater.● Do not use this water heater for anything other than itsintended purpose, as described in this manual.● Do not remove the front cover unless the power to thewater heater is turned off or disconnected.Failure to do so may result in electric shock.● When servicing the controls, label all wires prior todisconnecting them.Failure to do so may result in wiring errors, which can lead toimproper or dangerous operation.● Do not use unapproved replacement or accessory parts.Doing so may result in improper or dangerous operationand will void the manufacturer’s warranty.● Do not place anything in or around the vent terminals,such as a clothes line, that could obstruct the air flow inor out of the water heater.● This water heater has been approved for use in the USAand Canada only.Using the water heater in any other country will void themanufacturer’s warranty.● Should overheating occur or the gas supply fail to shutoff, turn off the manual gas valve to the appliance.● Do not use this appliance if any part has been underwater.Immediately call a qualifed service technician to inspect theappliance and to replace any part of the control system andany gas control which has been under water.2.1 Product InformationNavien features the new NPE “A” Series tankless gas water heaterwith a built-in Circulation Pump and Mini Buffer Tank (the NPE ”S”series tankless gas water heater features a built-in Mixing Valve).Depending on the heat capacity, each model is divided into fourtypes; 150,180,210 and 240.ItemsNPE“A” Models(NPE-180A/210A/240A)“S” Models(NPE-150S/180S/210S/240S)Intended Use Residential, Commercial or Combi*FeaturesBuilt-in CirculationPump and Mini BufferTankBuilt-in Mixing ValveFactoryDefaultTemperature120 °F (49 °C)Gas Type NG, field-convertible to LPSee “3.1 General Specifications” for detailed specifications.* “Combi” refers to a combination potable water and space heatingapplication. These water heaters cannot be used in space heating-onlyapplications.2. Product Information