SR208C Solar Controllers for Split Pressurized Solar Water Heater

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

1.3 Main functions

• 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

2.1 Technical Parameters

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

3.2 SR208C Installation manual download：

Operation Manual of the Intelligent Controller SR208C