Audited Supplier
SR208C 1500W Controller for Split Pressurized Solar Hot Water Heater with Solar Collector
1.1 Overview
SR208C is used in a split pressurized solar water heater system.
Intelligently controlled by the latest high-performance microcontroller from NXP.
All devices use industrial-grade standards to operate in cold, high-temperature, and humid environments, while using a clock chip for precise timing control.
The controller is LCD type, with beautiful appearance, stable and reliable performance, easy to install, as the most ideal accessory product for split pressure solar water heater.
1.2 Applications Capacity
Max.number of collectors:1
Max.number of storage tanks:1
Max.number of relays:2
Max.number of sensors:3
Max.number of visualization application system: 1
- CLK time setting
- AH auxiliary heating/constant temperature function
- LOAD tank heating setting
- COL collector function
- PUMP control mode (high efficiency PUMP speed control)
- COOL cooling function
- MAN manual function
- BLPR blocking protection function
- OTDI high temperature sterilization function
- UNIT conversion between Celsius and Fahrenheit
- BEEP buzzer fault alarm function
- RET reset
- PASS password setting
- M.H manual heating
- Holiday function
- Protection function
- Power off memory protection
- The screen saver
1.4 Delivery scope
| Components | Quantities | Remarks |
| Controller | 1pc | SR208C |
| Operation manual | 1pc | |
| PT1000 sensor | 1pc | ∅ 6*50mm,cable length 1.5mm |
| NTC10K | 2pcs | ∅ 6*50mm,cable length 3m |
| Accessory bag | 1pc |
2.1 Technical parameters
| Parameter | Value |
| Size of Keypad | 178mm×120mm×43mm |
| Power supply | AC100~240V 50~60Hz |
| Power consumption | < 2.5W |
| Measure accurate | ± 2ºC |
| Measure scope of collector sensor | -10~220ºC |
| Measure scope of tank sensor | 0~110ºC |
| Available power of R1 electrical themal trace | < 1A |
| T1 | Collector:1*PT1000,≤ 500ºC(Sillicon cable ≤ 280ºC) |
| T2,T3 | NTC10K,B=3950,≤ 135ºC(PVC cabke ≤ 105ºC) |
| Amblent temperature | -10~50ºC |
| Water proof grade | IP41 |
2.2 Optional accessories
2.2.1 Electromagnetic relay : SR802,can control electric heating of ≤4000W.
Contactor unit of high power: SR802
When user selects electrical heater as back-up device, we recommend using SR802 unit connecting controller and electrical heater.
Technical data of SR802 Dimension: 100mmx100mmx65mm.
Power supply: 180V ~ 264V / AC 50 / 60Hz.
Suitable power: ≤ 4000W.
Available ambient temperature: -10 ~ 50oC Water proof grade: IP43.
3.1 SR208C Installation diagram
