solar controllerSR868(CE CERTIFICATE)

solar controllerSR868C8
Solar controller SR868C8
Introduce
1 collector array – 1 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.
Main technical data
Specification SR868C8Q SR868C8
Appearance of controller 120mm×120mm×18mm 120mm×120mm×18mm
Range of tank 0~110oC 0~110oC
temperature measuring
Suitable power of pump three pumps,≤ 600W three pumps,≤ 600W
Suitable power of power≤ 1500W power≤ 1500W
electrical heater
Ambient temperature -10~50 oC -10~50 oC
Water proof grade IP40 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