켜기
- 1Press 전원. The screen lights up.
A modern flat Navien controller with a black screen and six touch-style buttons: 난방 cycles room / floor / timer, and + / − set the numbers.

실내 at 21–23°C, hot water 45°C. For a mostly empty room in cold weather: 예약 every 3 h, 30 min.
| 실내 / 온돌 / 예약 | Room / Floor / Timer | Active heating mode. |
|---|---|---|
| 희망온도 | Target temperature | The temperature you set. |
| ○○ 시간마다 ○○ 분 가동 | Every __ h, run __ min | Timer: e.g. '3 시간마다 30 분 가동' = every 3 hours, heat for 30 minutes. |
| 운전 | Running | The boiler is heating now. |
| 외출 | Away | Heating off; hot water and frost protection only. |
| 돼지저금통 | Piggy-bank icon | Gas-saving indicator. Nothing to do. |
| 온수 아이콘 깜박임 | Blinking hot-water icon | Quick hot water is on (ends after 10 min). |
Note any code on the screen and call 1588-1144.
A/S: 1588-1144
