TK-7 solar controller with bottom fixed sensor for non pressurized solar water heater

1, Photos

2, Technical datas:

<1> Power: 220VAC±10%

<2> Size: 17x12.5x5cm

<3> Temperature detective precision: ±2°C

<4> Temperature detect range: 0~90°C

<5> Water level: 4 level

<6> Power loss: <5W

<7> Auto control supercharging pump/Electric heating belt ≤ 500W

<8> Electric heating  ≤ 2000W

<9> Electric leakage cut off current: < 10mA/0.1s

<10> Solenoid Valve: DC12V for pressurized and non pressurized valves

<11> Pressurized working pressure: 0.02~0.8Mpa, for direct water supply

<12> Non pressurized: working pressure: 0 Mpa, for water supply and low pressure water supply

3, Main functions:

<1> Water level preset

<2> Leakage protection

<3> Intelligent water loading

<4> Constant water level loading

<5> Insufficiency water loading

<6> Pipe heat prevention

<7> Constant temperature heating

<8> Low water pressure water loading

<9> Auto control supercharging pump

<10> Dry heating prevention

<11> Power off memory

<12> All-weather water supply

<13> Intelligent heating

<14> Water temperture preset

<15> Temperature control water loading

<16> Water insufficiency alert

<17> Manual control