Split Solar Water Heater Controller SR868C8

Intelligent Solar Water Heater controller,anti-dry heating fctn SR868C8,Three Sensor Input,4 relay outputs for circulation pumps or 3-way

 electromagtenic valves,Preferred Shipping Methods Available.

1.Introduce:

1 collector array1 storage tank 1 pump and auxiliary heating Description: The solar circuit pump (R1) is switched on as soon as the switch-on temperature difference (Ton) between the collector array (T1) and the storage tank (T2) is reached. If the temperature difference between the collector array (T1) and storage tank (T2) drops below the switch-off temperature difference (Toff), or the temperature of storage tank (T3) reaches the preset maximum storage temperature, then the solar circuit pump ( R1) is switched off. Back-up heating by auxiliary boiler (detailed see paragraph 4.3): Within the preset time section of back-up heating, if the temperature T3 is below the switch-on temperature, then the circulation pump ( H1) of back-up heating is triggered, when T3 is heated to the switch-off temperature, circulation pump H1 of back-up heating is ceased

2.Technical Data

1.Specification:  SR868C8  
2.Appearance of  controller:  120mm*120mm*18mm  
3.Power  supply: AC230V+-10%  
4.Power consumption:  < 3W  
5.Accuracy  of  temperature: +-2oC    

measuring    
6.Range  of  collector:  -10-220oC  
7.temperature  measuring  
Range  of  tank: 0-110oC
8.temperature  measuring     
Suitable  power  of  pump:   three  pumps,  <= 600W  
9.Suitable  power  of :   power<= 1500W  
10.electrical  heater  
Inputs:   1  * Pt1000  sensor  (<=500oC) for  collector  (silicon  cable<=280oC),
                    2  * NTC10K,  B3950  sensor   (<=135oC)  for  tank,  (PVC  cable  <=105oC),
Outputs : 3  relays,  for  circulation  pumps or  3-way  electromagnetic  valve
                   1  relay  for  electrical  heater  
11.Ambient  temperature: -10-50  oC  
12.Water  proof  grade : IP40  

3.Main Functions

1.Main  menu  DT  O  &  DT  F  Temperature  difference  function
2.Main  menu-THET  timing  heating
3.TEMP  Temperature  main  menu
4.EM  Emergency  collector  temperature
(emergency  switch-off  temperature  of  collector)
5.CMX  Maximum  limited  collector  temperature  (collector  cooling  function)
6.CMN  low  temperature  protection  of  collector
7.CFR  frost  protection  of  collector
8.SMX  Maximum  temperature  of  tank
9.REC  Tank  re-cooling  function
10.Celsius  and  Fahrenheit  temperature  transferring
11.FUN  Auxiliary  function
12.DVWG  Anti-Legionella  function
13.CIRC  Temperature  controlled  hot  water  circulation  pump
14.BYPR  High  temperature  by-pass  function
(tank  temperature  automatically  adjusting)
15.  HND  Manual  mode
16.PASS  Password  setting
17.LOAD  Recovery  to  factory  setting
18.ON/OFF  button
19.Holiday  function
20.Manual  heating
21.Temperature  query  function
22.Memory  Protection
23.Anti-dry  heating  Protection
24.Screen  protection