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SR288 Solar Controllers for Split Pressurized Solar Water Heater

SR288 is a split solar water heater controller with networked remote control.
  • SR288
  • Applicable to SFBS/SFES/SFFS
  • Integrated circuit/ABS
  • Control solar heating system intelligently
  • Network connection function, Remote control
  • 1 year
Quantity:

1. Product Description

1.1 Overview

  • SR288 is used in a split pressurized solar water heater system.

  • Network connection function, remote control.

  • 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.

SR288 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:6

  • Max.number of Rotary vane electronic flowmeter (FRT):1

  • Max.number of 485 communication interface:1

  • Max.number of PWM frequency conversion output:2

SR288 Solar Controllers for Split Pressurized Solar Water Heater-p1.2


1.3 Main functions

  • LCD---display

  • CLK---time setting

  • THET---Timed auxiliary heating

  • CIRC---water-side circulating pump three-time temperature/time control function

  • LOAD---water tank heating setting

  • COL---collector function

  • OCEM---heat collector emergency shutdown function

  • OCCO---collector cooling

  • OCMI---the lowest temperature of the collector

  • OCFR---heat collector antifreeze function

  • PUMP---Water pump control mode (high efficiency pump speed control)

  • COOL---cooling function

  • OSTC---water tank cooling

  • OHDP---heat transfer

  • MAN---manual function

  • BLPR---blocking protection

  • OTDI---high temperature sterilization function

  • OPAR---parallel relay

  • OHQM---heat measurement

  • FS---Flow monitoring and pump idling protection

  • UNIT---Conversion of Celsius and Fahrenheit

  • BEEP---Buzzer fault alarm function

  • RET---reset

  • PASS---Password setting

  • M.H---manual heating

  • Networking function

  • Holiday function

  • Screen Protection

  • Trouble Protection

  • Trouble Checking


1.4 Delivery scope

SR288 Solar Controllers for Split Pressurized Solar Water Heater-p1.4

2. Technical Parameters

2.1 Technical Parameters

SR288 Solar Controllers for Split Pressurized Solar Water Heater-p2.1


2.2 Optional accessories

2.2.1 Grundfos Direct Sensor VFS and FRT  digital flow meter

SR288 Solar Controllers for Split Pressurized Solar Water Heater-p2.2.1


2.2.2 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


2.2.3 WIFI To 485 Mode

SR288 Solar Controllers for Split Pressurized Solar Water Heater-p2.2.3


3. Product installation

3.1 SR288 Installation Diagram

SR288 Solar Controllers for Split Pressurized Solar Water Heater-p3.1-1


SR288 Solar Controllers for Split Pressurized Solar Water Heater-p3.1-2SR288 Solar Controllers for Split Pressurized Solar Water Heater-p3.1-3


3.2 SR288 Installation Manual Download:

Operation Manual of the Intelligent Controller SR288

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