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SR81/SR868 Solar Controllers for Split Pressurized Solar Water Heater

SR81/SR868 is used in a split pressurized solar water heater system.
  • SR81/SR868C8
  • Applicable to SFBS/SFFS/SFES
  • Integrated circuit/ABS
  • Control solar heating system intelligently
  • Suitable for split pressurized solar water heater
  • 1 year
Quantity:

1. Product Description

1.1 Overview

  • SR81 is an upgraded version of SR868C8.

  • SR81/SR868 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.


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:4

  • Max.number of sensors:5

  • Max.number of visualization application system: 1


1.3 Main functions

  • DATE---Date setting

  • Timed heat---backup heating

  • Circle---Hot water circulation

  • LOAD---Setup Loading tank1

  • COL---Collector1

  • PUMP---Pump control mode

  • COOL---Cooling function

  • AUX---Auxiliary function

  • MAN---Manual mode

  • BLPR---Blocking protection function

  • OTDI---Thermal disinfection function

  • FS---Flow meter type selection.

  • UNIT---C-F unit switch

  • RST---factory setting

  • PASS--- password set

  • Holiday function

  • Screen Protection

  • Trouble Protection

  • Trouble Checking


1.4 Delivery scope

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

2. Technical Parameters

2.1 Technical Parameters

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


2.2 Optional accessories

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 SR81 Installation diagram


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


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


Solar Controllers for Split Pressurized Solar Water Heater-p3.1-3


3.2 SR81 Installation manual download link:

SR81 Operation Instruction.pdf


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