Navien NPE-180A Operation Manual

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

Contents

Navien NPE-180A Operation Manual Manual pdf 8 page image

8 Operating the Water Heater3.2 Adjusting the Water TemperatureWARNINGBefore adjusting the water temperature, read “To preventburns:” on page 4 carefully. Water above 120°F can causeinstant scalding, severe burns, or death.The water heater is set to 120°F (49°C) by default. To adjust thewater temperature:Make sure that all hot water faucets are closed, and ensure that1.the internal circulator and any external circulating pumps areoff.Note If a hot water faucet is open, you can adjust thetemperature only from 98-110°F (37-43°C).Press the + (Up) or – (Down) buttons until the desired2.temperature appears on the display. You can adjust thetemperature while the display is flashing. Once the displaystops flashing, the temperature setting is stored.Note The water heater will retain your settings duringa power outage.You 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 for 2 seconds to adjust in5°F or 2°C incrementsThe water heater will not provide hot water instantly at the hotwater faucet unless a recirculation line has been installed from thefurthest fixture back to the water heater. For “A” models, the unitmust be set to “external recirculation” mode.3.1 Turning the Water Heater On or OffTo turn the water heater on or off, press the Power button.When the power is on, the temperature will appear on the frontpanel display.3. Operating the Water Heater