Shuangri Electron SR258 Operation Manual
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Shuangri Electron SR258 Operation Manual

Intelligent controller for split pressurized solar hot water system
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Operation Manual of the Intelligent
Controller SR258
for Split Pressurized Solar Hot Water System
Please read the instruction carefully before operation!

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Summary of Contents for Shuangri Electron SR258

  • Page 1 Operation Manual of the Intelligent Controller SR258 for Split Pressurized Solar Hot Water System Please read the instruction carefully before operation!

  • Page 2: Table Of Contents

    Manual of SR258 intelligent controller Contents 1. Safety information ........................3 1.1 Installation and commissioning .................... 3 1.2 About this manual ........................3 1.3 Liability waiver ......................... 3 1.4 Important information ......................4 1.5 Signal description ........................4 1.6 Button and HMI description ....................4 2.
  • Page 3 Manual of SR258 intelligent controller 7.8 BLPR Blocking protection ....................40 7.9 OTDI Thermal Disinfection function .................. 41 7.10 FS Flow rate monitoring and pump dry running protection ......... 42 7.11 UNIT C-F Switch ......................... 43 7.12 RET Reset ........................... 44 7.13 PASS Password setup ......................

  • Page 4: Safety Information

    Manual of SR258 intelligent controller 1. Safety information 1.1 Installation and commissioning  When laying wires, please ensure that no damage occurs to any of the constructional fire safety measures presented in the building.  The controller must not be installed in rooms where easily inflammable gas mixtures are present or may occur.

  • Page 5: Important Information

    Manual of SR258 intelligent controller evident that safe operation is no longer possible (e.g. visible damage). Please immediate take the device out of operation. Note: ensure that the device can’t be accidentally placed into operation. 1.4 Important information We have carefully checked the text and pictures of this manual and provided the best of our knowledge and ideas, however inevitable errors maybe exist.

  • Page 6: Overview

    Manual of SR258 intelligent controller Status description Code Lighting Blinking Exceed the maximum temperature of storage Running of storage emergency shutdown function Running of collector emergency shutdown function Collector Cooling OCCO Tank Cooling OSTC System Cooling OSYC Start of anti-freezing function...

  • Page 7: Delivery List

    Manual of SR258 intelligent controller  Ambient temperature: 0 ... 40 ° C  Dimensions: 187*128*46mm Note: there are 4 inputs for NTC10K, B=3950 temperature sensor, but only 2 sensors are included in standard delivery list, the other two should be purchased separately by customer if necessary.

  • Page 8: Terminal Connection

    Manual of SR258 intelligent controller Note: wires must be fastened by fixing clamps on the position C. 3.3 Terminal connection Note: before opening the housing! Always disconnect the controller from power supply and obey the local electrical supply regulation. ...

  • Page 9: Connection With High Efficiency Pump

    Manual of SR258 intelligent controller  All sensor cables carry low voltage, and to avoid inductive effects, must not be laid close to 230 volt or 400 volt cables (minimum separation of 100mm).  If external inductive effects are existed, e.g. from heavy current cables, overhead train cables, transformer substations, radio and television devices, amateur radio stations, microwave devices etc., then the cables to the sensors must be adequately shielded.
  • Page 10 Manual of SR258 intelligent controller Signal wire 1 from the high-efficiency pump is connected to GND port of controller Signal wire 2 from the high-efficiency pump is connected to PWM port of controller Signal wire 3 from the high-efficiency pump is not connected to the controller Some pumps connections are available as above, for example: Wilo Yonos PARA ST15/7.0 PWM2 M...

  • Page 11: System Description (Standard Solar System With 1 Tank, 1 Collector Field)

    Manual of SR258 intelligent controller 4. System description (Standard solar system with 1 tank, 1 collector field) Description: The controller calculates the temperature difference between collector sensor T1 and tank sensor T2. If the difference is larger than or identical to the adjusted...

  • Page 12: Function's Parameters And Options

    Manual of SR258 intelligent controller 5. Function’s parameters and options 5.1 Overview of menu structure 5.2 Menu operation description  Access main menu ►Press “SET” button to access main menu ►Press “▲/▼” to select menu ►Press “SET” button to enter the submenu ...

  • Page 13: Value Checking

    Manual of SR258 intelligent controller ►Press “▲/▼” button to select submenu, ►Press “SET” button to enter the value adjust interface or selection function (select ON/OFF) ►Press “▲/▼” to adjust value ►Press “SET” or ”ESC” to confirm the value you set ►Press “ESC”...

  • Page 14: Thet Timing Heating

    Manual of SR258 intelligent controller Note: In the case power to controller is switched-off, date and time will be remembered in controller for 36 hours. 6.2 THET Timing heating Electrical back-up heater can be installed in the solar system to ensure the tank’s...
  • Page 15 Manual of SR258 intelligent controller The third time: starts heating at 15:00 until temperature of 40 The forth time: starts heating at 16:00 until temperature of 45 The fifth time: starts heating at 17:00 until temperature of 50 Note: If customer use electrical heater as back-up, please according to the power of...
  • Page 16 Manual of SR258 intelligent controller Function setting: ►Press “SET” button to access main menu, and press “▲” to select THEH timing heating main menu. ►Press “SET” button to set parameter, select the reference sensor of tank, “THS S3” displays on the screen.

  • Page 17: Circ Dhw Circulation Pump Controlled By Temperature Or By Time

    Manual of SR258 intelligent controller Note: The Sign represents whether timing heating function is on or off. 1. Within the preset time section, heating sign is lighted on the screen 2. Out of the preset time section, heating sign doesn’t display on the screen.
  • Page 18 Manual of SR258 intelligent controller START ON: tank’s temperature sensor (T3 as priority selection) is 2 C higher than the preset switch-off temperature, and then DHW circuit pump can be triggered. Note: two Modes can’t play at the same time, when time controlled Mode is selected, then temperature controlled Mode can’t be activated.
  • Page 19 Manual of SR258 intelligent controller DHW circuit function TEMP Temperature control DHW pump mode TIME Time control DHW pump mode STAT ON/OFF Tank temperature (T3) C higher than the preset switch-off DHW circuit temperature. ℃ ℃ ℃ CYCO 5-53 Switch-on temperature...
  • Page 20 Manual of SR258 intelligent controller ►Press “▲” button, “TEMP OFF” displays on the screen (temperature control Mode) ►Press “SET”, “OFF” blinks ►Press “▲/▼” button, “ON” blinks, to activate this function ► Press “SET” or “ESC” button to save the setting.

  • Page 21: Function Operation And Parameter Setup (Engineer)

    Manual of SR258 intelligent controller ►Press “SET”, time minute “00” blinks, ► Press “▲/▼” to adjust minute of the circuit start time. ► Press “SET” or “ESC” button to save the setting. ►Press “▲” to access the stop time of the first time section, “tC1F 07:00” displays on the screen, ►Press “SET”, time hour “07”...

  • Page 22: Load Tank Heating

    Manual of SR258 intelligent controller ►Press “▲/▼” to enter the forth digital ►Press “SET”, to access main menu Through password set to limit the user to change some parameters, 4 digitals needed. Default is 0000 If no password is set, then just press “SET” five times to access main menu directly 7.2 LOAD tank heating...
  • Page 23 Manual of SR258 intelligent controller exceeded, sign is displayed on the screen. The sensor for tank maximum limitation (SMAX) can be selected. The maximum limitation always refers to the sensor selected (T2 or T3). The switch-on hysteresis (HYST) is selectable(Default is 2 C), for example, when tank maximum temperature is set to 70 C，...

  • Page 24: Col Collector Function

    Manual of SR258 intelligent controller Setup the functions ► Select “LOAD” main menu ► Press “SET”, “DTO 6K” displays on the screen ► Press “SET”, “6K” blinks ► Press”▲/▼”, to adjust the switch-on temperature of the solar circuit pump. ► Press “SET” or “ESC” to save the setting ►...
  • Page 25 Manual of SR258 intelligent controller When the collector temperature exceeds the adjusted collector emergency temperature, Then solar pump (R1) switches off in order to protect the system components against overheating (collector emergency shutdown). If the maximum collector temperature (OCEM) is exceeded, sign is displayed.
  • Page 26 Manual of SR258 intelligent controller temperature of collector antifreeze function CFRF, the solar pump will be switched off again. If collector antifreeze function is activated, sign blinks on the screen slowly. Note: Since this function uses the limited heat which is saved in the tank, so the antifreeze function should be used in regions where ambient temperatures is around the freezing point only for a few days.
  • Page 27 Manual of SR258 intelligent controller Main Submenu Submenu Factory Adjustable Step Description menu range adjust Collector function OCEM Collector emergency shutdown function on/ff Temperature of 130℃ 80-200℃ 1℃ collector emergency shutdown(hysteresis 10K) OCCO Collector cooling function on/off CMAX 110℃ 70-160℃...
  • Page 28 Manual of SR258 intelligent controller Function setting: OCEM (Collector emergency shutdown function) setup ►Select “COL” function menu ►Press “SET”, “OCEM” displays on the screen ►Press “SET” again, “OCEM ON” displays on the screen ►Press “SET”, “ON” blinks on the screen (If it is necessary to shut down this function, press “▲/▼”...
  • Page 29 Manual of SR258 intelligent controller OCFR (Antifreeze function) setup ►Press “▲”, “OCFR” displays on the screen ►Press “SET”, “OCFR OFF” displays on the screen ►Press “SET”, “OFF” blinks on the screen ►Press “▲/▼”, to activate this function, “OCFR ON” displays on the screen ►Press “▲”, “CFRO 4...

  • Page 30: Pump Pump R1 Control Mode

    Manual of SR258 intelligent controller ►Press “SET” or “ESC” to save the setting ►Press “▲”, “TCIN 30Min” displays on the screen ►Press “SET”, “30” blinks ►Press “▲/▼”, to adjust stop time ►Press “SET” or “ESC” to save the setting ►Press “ESC” to return to the previous menu 7.4 PUMP Pump R1 control mode...
  • Page 31 Manual of SR258 intelligent controller • 0-10: Speed control via 0 - 10 V signal Note: 1. More information about connection of high efficiency pump see the paragraph (3.5 Connection with high efficiency pump) 2. Minimum pump speed: Under the adjustment menu MIN1, a relative minimum speed for connected pumps can be allocated to the outputs R1.

  • Page 32: Cool Cooling Function

    Manual of SR258 intelligent controller MAX1 100% 25-100% semiconductor relay for Pump with speed control PSOL ON/OFF PWM Solar pump MIN1 20-95% MAX1 100% 25-100% PHEA ON/OFF PWM DHW pump MIN1 20-95% MAX1 100% 25-100% 0-10 ON/OFF 0-10V signal control...
  • Page 33 Manual of SR258 intelligent controller function overrides the maximum tank temperature limitation to provide thermal relief of the collector field and the heat transfer fluid on hot days. If the tank temperature is higher than the adjusted maximum tank temperature and the switch-on temperature difference DTCO is reached, the solar pump remains running or will be switched on.
  • Page 34 Manual of SR258 intelligent controller achieved by pump, then the heat transferring function will be independent from solar loading. Below is the example of this application for reference. Collector heat transferring valve logic Collector heat transferring pump logic Sign displays on the screen, it indicates that valve logic heat transferring is running.
  • Page 35 Manual of SR258 intelligent controller OSTC ON/OFF Tank cooling function DTCO 1-30K 0.5K Switch-on temperature difference of cooling function DTCF 0.5-29.5K 0.5K Switch-off temperature difference of cooling function OHDP ON/OFF Heat transferring by external radiator ( only in case there...

  • Page 36: Aux Auxiliary Function

    Manual of SR258 intelligent controller OSTC (Tank cooling function) setting ►Press “▲” button, “OSTC” displays on the screen ►Press “SET”, “OSTC OFF” displays on the screen ►Press “SET” button, “OFF” blinks ►Press “▲/▼” to activate this function ►Press “▲”, “DTCO 20K” displays on the screen ►Press “SET”, “20K”...
  • Page 37 Manual of SR258 intelligent controller Auxiliary functions can be set under “AUX” menu; controller can activate several auxiliary functions simultaneously.  TIME Timer function Through function, the output relays can be triggered at a specified time, for this purpose, an output R3 should be added.
  • Page 38 Manual of SR258 intelligent controller Main Submenu Submenu Factory Adjustable Step Description menu range adjust Auxiliary functions TIME ON/OFF Timer function t 1O 00:00 00:00-23:59 Start time of the first time section t 1F 00:00 00:00-23:59 Close time of the first time...
  • Page 39 Manual of SR258 intelligent controller Function setup  TIME Timer function ► Select AUX main menu, press “SET” to access “TIME” submenu ►Press “SET”, “TIME OFF” displays ►Press “SET”, “OFF” blinks ►Press “▲/▼”, to activate this function, “TIME ON” displays ►Press “SET”...

  • Page 40: Man Manual Operation

    Manual of SR258 intelligent controller ►Press “▲”, “AHO 40 C”displays on the screen ►Press “SET”, “40 C” blinks ►Press “▲/▼”, to adjust the switch-on temperature ►Press “SET” or “ESC” to save the setting ►Press “▲”, “AHF 45 C”displays on the screen ►Press “SET”, “45...

  • Page 41: Blpr Blocking Protection

    Manual of SR258 intelligent controller Manually. Note: When manual mode is activated, sign blinks on the screen, controller runs for 15 minutes and then switch-off all output, control exits manual mode automatically. Menu structure Main Menu Submenu Factory set Adjustable range...

  • Page 42: Otdi Thermal Disinfection Function

    Manual of SR258 intelligent controller Function setting ►Select main menu BLPR (blocking protection), “BLPR” displays on the screen ►Press “SET”, “BLPR OFF” displays ►Press “SET”, “OFF” blinks ►Press “▲/▼”, to activate this function, “BLPR ON” displays on the screen ►Press “SET” or “ESC” to save the setting 7.9 OTDI Thermal Disinfection function...

  • Page 43: Fs Flow Rate Monitoring And Pump Dry Running Protection

    Manual of SR258 intelligent controller PDIS 0-30d Time section disinfection monitoring DDIS 10min 1-180 1min Heating time of disinfection TDIS 0-90 Temperature of disinfection SDIS 18:00 00:00-21:00 1:00 Start time of disinfection Function setting ►Press “▲”, “OTDI” displays on the screen ►Press “SET”, “OTDI OFF”...

  • Page 44: Unit C-F Switch

    Manual of SR258 intelligent controller blinks on the screen. By this function, it can avoid pump dry running. Note: reasons for no flow rate in system:  No heat transfer liquid in system pipe due to pipe leakage.  Under this menu, the flow monitoring function can be activated and deactivated.

  • Page 45: Ret Reset

    Manual of SR258 intelligent controller Function setting ►Select UNIT menu ►Press “SET”, “TEMP C” displays on the screen ►Press “SET”, “ C” blinks ►Press “▲/▼”, to select temperature unit ►Press “SET” or “ESC” to save the setting 7.12 RET Reset...

  • Page 46: Manual Heating

    Manual of SR258 intelligent controller screen, to enter the new password ►Press “SET” button again, the first digital blinks ►Press “▲/▼”, to enter the correct digital, repeats same process to enter the second, the third and the forth digital. ►Press “SET” button, “PWDG 0000” displays on the screen, to enter the new password again, after confirm the new password, “...

  • Page 47: Protection Function

    Manual of SR258 intelligent controller expected, e. g. during a holiday absence. This function cools down the system in order to reduce the thermal load. 2 cooling functions are available: tank cooling (OSTC) and tank heat transfer (OHDP). Note: Controller is designed to run tank heat transfer (OHDP) function priority, when tank heat transfer (OHDP) function is deactivated, then tank cooling function (OHTC) runs automatically in turn.

  • Page 48: Quality Guarantee

    Manual of SR258 intelligent controller On the screen, warning sign and sensor sign blinks Sensor failure, press “ ▲/▼” button, an error code instead of temperature displays on the corresponding sensor place ---- -88.8 Wire is broken, Wire is shorten,...

  • Page 49: Accessories

    Manual of SR258 intelligent controller 10. Accessories Products name Specification Products picture PT1000, Ф6*50mm A01: High accurate Pt1000 sensor for collector NTC10K, B=3950, Ф6*50mm A02: High accurate sensor for tank and pipe 304 stainless steel with thread 1/2’ OT, A05: 304 stainless Size: Ф8*200...
  • Page 50 Manual of SR258 intelligent controller  SR802 connection diagram Note: Switch-off power, and perform by profession installer.

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