Introduce
Main technical data
Specification : SR868C8
Appearance of controller: 120mm×120mm×18mm
Power supply : AC230V±10%
Power consumption : ＜ 3W
Accuracy of temperature measuring : ±2oC
Range of collector temperature measuring : -10～220oC
Range of tank temperature measuring : 0～110oC
Suitable power of pump : three pumps，≤ 600W
Suitable power of electrical heater : power≤ 1500W
Inputs :
1 x Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC),
2 x 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
1 relay for electrical heater
Ambient temperature : -10～50 oC
Water proof grade: IP40
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.nMIN Solar circulation pump speed adjusting (RPM speed controlling)(Only available on SR868C8Q)
15.OHQM Thermal energy measuring (Only available on SR868C8Q)
16.INTV Pump interval function (Only available on SR868C8Q)
17.BYPR High temperature by-pass function
(tank temperature automatically adjusting)
18. HND Manual mode
19.PASS Password setting
20.LOAD Recovery to factory setting
21.ON/OFF button
22.Holiday function
23.Manual heating
24.Temperature query function
25.Memory Protection
26.Anti-dry heating Protection
27.Screen protection