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SR208C Solar Controllers for Split Pressurized Solar Water Heater

SR208C is a solar controller used in a split pressurized solar water heater system.
  • SR208C
  • Applicable to SFBS/SFFS/SFES
  • Integrated circuit/ABS
  • Control solar heating system intelligently
  • Suitable for split pressurized solar water heater
  • 1 year
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1. Product Description

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.

SR208C Solar Controllers for Split Pressurized Solar Water Heater-p1.1


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

SR208C Solar Controllers for Split Pressurized Solar Water Heater-p1.2


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

SR208C Solar Controllers for Split Pressurized Solar Water Heater-p1.4

2. Technical Parameters

2.1 Technical Parameters

SR208C Solar Controllers for Split Pressurized Solar Water Heater-p2.1


2.2 Optional accessories

2.2.1 Electromagnetic relay : SR802,can control electric heating of ≤4000W.


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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.



SR802 Connection Diagram:

SR802安装示意图

3. Product Installation

3.1 SR208C Installation diagram

SR208C Solar Controllers for Split Pressurized Solar Water Heater-p3.1-1


SR208C Solar Controllers for Split Pressurized Solar Water Heater-p3.1-2


3.2 SR208C Installation manual download:

Operation Manual of the Intelligent Controller SR208C




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