Product Specifications

--

Product Description

SR81Q(SR868C8Q) 1500W Solar Thermal Controller Water Heater Controller for seperate solar system

 Working Principle

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 (Delta T on) 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 (Delta T off), 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.

 Technical Data

1. Specification: SR81(SR868C8)

2.Appearance of controller: 120mm*120mm*18mm

3. Power supply: AC230V within 10%

4&period; Power consumption&colon; < 3W

5&period; Accuracy of temperature&colon; within2 centigrade measuring

6&period; Range of collector&colon; -10-220 centigrade

7&period; temperature measuring

Range of tank&colon; 0-110 centigrade

8&period; temperature measuring Suitable power of pump&colon; three pumps&comma; &colon; no more than 600W

9&period; Suitable power of &colon; power&colon; no more than 1500W or no more than 3000W&sol;4000W

10&period; electrical heater

Inputs&colon; One Pt1000 sensor&lpar;&colon;no more than500 centigrade&rpar; for collector &lpar;silicon cable&colon; no more than 280 centigrade&rpar;&comma;

 Two NTC10K&comma; B3950 sensor&colon; no more than 135 centigrade for tank&comma; PVC cable&colon; no more than105 centigrade&comma;

Outputs &colon; Three relays&comma; for circulation pumps or 3-way electromagnetic valve

 One relay for electrical heater

11&period; Ambient temperature&colon; -10-50 centigrade

12&period; Water proof grade &colon; IP40

Main Functions

1&period; Main menu DT O & DT F Temperature difference function

2&period; Main menu-THET timing heating

3&period; TEMP Temperature main menu

4&period; EM Emergency collector temperature

&lpar;emergency switch-off temperature of collector&rpar;

5&period; CMX Maximum limited collector temperature &lpar;collector cooling function&rpar;

6&period; CMN low temperature protection of collector

7&period; CFR frost protection of collector

8&period; SMX Maximum temperature of tank

9&period; REC Tank re-cooling function

10&period; Celsius and Fahrenheit temperature transferring

11&period; FUN Auxiliary function

12&period; DVWG Anti-bacteria function

13&period; CIRC Temperature controlled hot water circulation pump

14&period; nMIN Solar circulation pump speed adjusting &lpar;RPM speed controlling&rpar;&lpar;Only available on SR868C8Q&rpar;

15&period; OHQM Thermal energy measuring &lpar;Only available on SR868C8Q&rpar;

16&period; INTV Pump interval function &lpar;Only available on SR868C8Q&rpar;

17&period; BYPR High temperature by-pass function

&lpar;tank temperature automatically adjusting&rpar;

18&period; HND Manual mode

19&period; PASS Password setting

20&period; LOAD Recovery to factory setting

21&period; ON&sol;OFF button

22&period; Holiday function

23&period; Manual heating

24&period; Temperature query function

25&period; Memory Protection

26&period; Anti-dry heating Protection

27&period; Screen protection

Supply Ability

--

Packaging and Shipping

Lead time

--

Port

--

Packaging details

--