WIFI 220V controller of solar water heater, used for separated pressurized solar hot water system

This listing includes: 1 unit of controller for solar water heater, 220V （Wi-Fi version)

It is suitable for separated solar hot water system.

APPLICATION CAPACITY:
Max.number of collectors:1
Max.number of storage tanks:1
Max.number of relays:2
Max.number of sensors:3
Max.number of visualization application system:1

Brief Introduction:

The controller calculates the temperature difference between collector sensor T1 and tank sensor T2. If the difference is larger than or identical to the adjusted switch-on temperature difference, the solar

circulation pump (R1) will be switched on and the tank will be loaded until the switch-off temperature

difference or the maximum tank temperature is reached.

Main technical data

* Size of Controller:178mm x120mm x43mm
* Power supply:AC100-240V, 50-60Hz.
* Power consumption: < 2.5W
* Accuracy of temperature measuring: ± 0.1 ℃
* Range of collector temperature measuring: -10 ~220 ℃
* Range of tank temperature measuring: 0 ~110℃
* Suitable power of pump: 1 pump possible to be connected, output power < 300W .  
* Suitable power of HK (backup heating): 1pc ˂500W .
* Inputs: 3 sensors，
  1 pcs*Pt1000 sensor (≤500℃) for collector (silicon cable≤280℃),
  2pcs*NTC10K, B3950 sensor (≤ 135℃) for tank, (PVC cable ≤105℃),
* Outputs:2 relays, for circulation pump and backup heating
* Ambient temperature:-10 ~ 50℃.
* Water proof grade: IP41

Main functions

AH After heating/thermostat
Password protection
LOAD Tank heating
OCEM Collector emergency shutdown
OCCO Collector cooling
OCMI  Collector minimum temperature
OCFR Antifreeze
OTCO Tube collector
PUMP Pump control mode
OSYC System cooling
OSTC Tank cooling
MAN Manual mode
BLPR Blocking protection
OTDI Thermal Disinfection
UNIT C-F switch
BEEP beeper fault warning
Memory function
Screen protection
Trouble checking

Diagram of the system as below:

This controller (Wi-Fi version) can be integrated into Tuya APP.