How do I turn on the Unbranded ST-5400R?

1. Push the dial (PUSH ON/OFF) once. The green ring and screen light up.

How do I set the room temperature on the Unbranded ST-5400R?

1. Press 온도 so the 온도 icon shows. 2. Turn the dial toward + until 설정 reads 21.0. 3. Heating runs while 현재 is below 설정.

What should I set the Unbranded ST-5400R to when I leave for a few days?

1. Press 외출 before leaving (behaviour not verified). Otherwise turn 설정 down to about 10°C.

How do I turn off the Unbranded ST-5400R?

1. Push the dial once more. Only do this when nobody is home for a short time and it is not freezing.

Unbranded ST-5400R 영어 설명

A room thermostat for a small ELECTRIC boiler: it switches the boiler's circulation pump and heater via a separate control box (ST-5300M), so every hour of heat costs electricity.

이 모델의 설명서를 찾지 못해 가장 비슷한 모델 기준으로 정리했어요. 다르게 작동하면 사진을 보내주세요.

1Current · 현재hyeonjaeRoom temperature now (17.0°C in the photo).
2Set · 설정seoljeongTarget temperature (21.0°C in the photo).
3Temperature-mode icon · 온도ondoLit when the unit is working to a room temperature target.
4Heating icon · 난방nanbangLit when heating/circulation is running.
5Temperature button · 온도ondoSelects temperature mode (heat until the room reaches 설정).
6Timer button · 시간siganSelects a time-based mode (likely run/rest cycling). Not verified.
7Away button · 외출oechulAway / low-temperature hold while you are out. Not verified.
8Dial: push = on/off, turn = adjust · PUSH:ON/OFFPush the dial to switch on or off. Turn left (−) or right (+) to change the set value.

어떤 설정이 좋나요?

19-21°C while home, about 10°C when out. Electric heating is expensive, so lower the target rather than running it high.

어떻게 하나요?

켜기

1Push the dial (PUSH ON/OFF) once. The green ring and screen light up.

실내 온도 맞추기

1Press 온도 so the 온도 icon shows.
2Turn the dial toward + until 설정 reads 21.0.
3Heating runs while 현재 is below 설정.

며칠 집 비울 때

1Press 외출 before leaving (behaviour not verified). Otherwise turn 설정 down to about 10°C.

끄기

1Push the dial once more. Only do this when nobody is home for a short time and it is not freezing.

화면 글자는 무슨 뜻인가요?

현재	Current	Measured room temperature.
설정	Set	Target temperature.
온도	Temperature mode	Room-temperature control active.
난방	Heating	Heater/pump running.

이 모델에서 자주 헷갈리는 점

This drives an electric boiler: high settings show up on the electricity bill, and Korea's residential tiered tariff (누진제) charges more per kWh the more you use in a month.
If the screen works but nothing heats, the separate ST-5300M box (power + 순환펌프 lamps) may be off or tripped. Check its lamps.

A/S: Not printed on panel.

다른 Unbranded 조절기

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