Porudcts Thermostat

ES91.20 series auto controller



Operation self-detective                       water temperature and level display
Time display                                         Full Water Alarm 
Touch keys                                          Water Feeding by Temperature Control 
Constant Water Level feeding               Water shortage alarming
Manual Water feeding                          Compulsive water-feeding
water feeding while shortage                  Water Level Pre-setup                     
Automatic pressurization                       Constant temperature heating
Manual heating                                      Temperature Level Pre-setup
Anti-pipe explosion protection               water tank frost protection
Pipe Defrosting                                     Pipe Circulation
Water feeding protection                      Booster pump idling protection              
Low water pressure alarm protection        Overheat protection
Electric heating belt fire prevention             Lightning protection
Electric Leakage protection                      Power-off memory 
Two and four wire sensor automatic identification


Technical Data

Technical data:
1  Power supply : 220VAC  power consumption: ≤6W
2  Accuracy of temperature measuring: ±1℃
3  Range of temperature measuring: 0-99℃
4  Water level classification: Five classes display
5 Power of Booster Pump: ≤500W
6. Power of Electric heating cable : ≤500W
7. Controlled power of circulation pump power: ≤500W
8. Controlled power of electric heating: ≤1500W or 3000W
9. Residual Operating Current:10ma / 0.1s
10 . Parameters of Solenoid valve: DC12V, pressurized and un-pressurized valve are optional.
11. Language demand the current state of instrument. (optional)



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