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 37 page image

Version 2.2136 NPE Service ManualYou can adjust the temperature by the below 10-degreeincrements, depending on the temperature range:Temperature range Adjusting the watertemperature98°F-120°F (Fahrenheit mode)36°C-50°C (Celsius mode) 1°F or 0.5°C increments120°F-140°F (Fahrenheit mode)50°C-60°C (Celsius mode)Press the + or - buttons for2 seconds to adjust in 5°F or2°C incrementsThe water heater will not provide hot water instantly at the hotwater faucet unless a recirculation line has been installed fromthe furthest fixture back to the water heater and the unit is set to“external recirculation” mode.4.7.3 Using Commercial ModeTo use water above 140°F (60°C) (up to 182°F (83°C)), you can useCommercial Mode.● To enter Commercial Mode: Press the up (+) and down (-) buttonsimultaneously for 10 seconds. “HIGH” appears on the display.● To exit Commercial Mode: Press the up (+) and down (-) buttonsimultaneously for 10 seconds. “LoW” appears on the display.NOTE● To adjust the temperature, press the up (+) button for5 seconds to adjust in 10°F (5°C) increments.● Commercial Warranty Applies when this mode is used. Referto the Warranty for more details.4.7.4 Viewing Basic InformationTo view information about the water heater, press the Informationbutton.Press the + or – buttons to switch between the information types.Display DescriptionFlow rate in gallons per minute(GPM).Hot water outlet temperature (OUT).Cold water inlet temperature (IN).To exit information mode, press the Reset button.4.7.5 Resetting the Water HeaterIf an error message appears, you can try resetting the water heaterto resolve the problem. To reset the water heater, press the Resetbutton.If resetting the water heater does not solve the problem, refer tothe Troubleshooting section of this manual or contact TechnicalSupport at 1-800-519-8794.