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BF-170MW Non pressure split solar water heating system controlle

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Functions overview

    BF-170MW is a type of non-pressure-bearing solar water heating system controller, consisting of a main unit used to control the entire system, and 5 optional control panels to be connected to the clients in series (all connected with the main unit through HX2.54-3P data communication cables) for long-distance regulation of the main unit.In order to meet various demands of controlling water heating systems, this product is integrated with three groups of functions, i.e., water feeding control functions (water feeding in case of water-shortage, thermostatic water feeding, timed water feeding, manual water feeding), heating control functions (heat collection circulation, timed auxiliary heating, manual heating) and water return control functions (timed water return, manual water return). It is an ideal solution for detached townhouses, residential houses, resort hotels, inns and other applications, and able to ensure large-capacity heating operation with stable and excellent performance.


You are welcome to use BESFUL controllers and enjoy the premium user experience brought by BESFUL controllers.   

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Specification and technical parameters  

Product parts list1.Host x 1 (excluding control panel)
2.NTC10K-A-2 Water Tank Temperature Sensor X 3

Appearance of size(mm)160(L)×112(W)× 40(H)
The installationWall-mounted mounting
Working power supply and power consumptionWork Power AC80-240v:3w;Standby:<2w
DisplayLED Digital Display
The keysPressing Conductive Silicone Keypad

Three-way 10K NTC thermistor temperature input and water level sensor input:
●T1. Water tank temperature sensor input;
●T2. Heat collector plate temperature sensor input;
●T3. Pipe insulation temperature sensor input;

●W1. Input of water level sensor.


◆ electric heating output, load power AC220V,3KW;
◆ temperature difference circulating pump output, the load power is AC220V,200W;
◆ output of pipeline circulation pump (or water booster pump), load power AC220V,200W;
◆ the output of the water booster pump, the load power is AC220V,200W
◆ output of water solenoid valve, the load is DC12V/2W;

Real-time ClockReal-time clock is 24-hour system
Timer Range00:00~23:59(Hour、minute)
Temperature & water-level MeasurementTemperature:-19~99℃
Set rangeHeating temperature setting:0~85℃
Full water level (upper limit) setting range:50%、80%、100%
Control range of heating temperature & upper water
Temperature of water heating control rage:0~85℃
Full water level (upper limit) setting range:50%、80%、100%
Other parameters◆ The temperature sensor wire can be connected to a distance of 100 meters by a common wire.
◆ Set parameters to maintain memory for a long time after power loss
◆ Temperature control water temperature control range: 10 ~ 80℃
◆ Temperature difference control range of collector plate: 4 ~ 30℃
◆ The temperature range of the water tank to stop the cycle of temperature difference: 55 ~ 99℃
◆ Pipe insulation temperature control range: 20 ~ 50℃
◆ Anti-freezing cycle temperature control range: -10 ~ 10℃


Power and Input/Output Port


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