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Shuang Ri Electron SR288, Operation Manual, Page: 24 / 57

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Shuang Ri Electron SR288 Operation Manual Download Page 24

Manual of SR288 intelligent controller 

23 

 

Speed control 

If  the  temperature  reaches  or  exceeds  the  switch-on  temperature  difference,  the  pump 

switches on at 100% speed for 10s. Then, the speed is reduced to the minimum pump speed 

value. 

 

If  the  temperature  difference  reaches  the  preset  temperature  difference,  the  pump  speed 

increases  by  one  step  (10%).  The  response  of  the  controller  can  be  adapted  via  the 

parameter RIS. If the difference increases by the adjustable rise value RIS, the pump speed 

increases  by  10%  until  the  maximum  pump  speed  of  100%  is  reached.  If  the  temperature 

difference decreases by the adjustable rise value (RIS), pump speed will be decreased by 

one step 10% accordingly. 

Note: 

To enable speed control function, the corresponding pump type has to be set to 

(MIN, MAX) and relay control has to be set to (PULS, PSOL, PHEA or 0-10 V) (under 

adjustment menu PUMP). 

 

 

SMX    Maximum tank temperature protection set 

If the tank temperature reaches the adjusted maximum temperature, the tank will no longer 

be  loaded  in  order  to  avoid  damage  caused  by  overheating.  If  the  maximum  tank 

temperature is 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

o

C), for example, when tank maximum temperature is set to 70

o

C

，

then 

at 68

 o

C, Maximum tank temperature protection function is deactivated automatically.   

Menu Structure 

 

 

 

 

 

 

 

 

     

 

Summary of Contents for SR288

Page 1: ...Operation Manual of the Intelligent Controller SR288 for Split Pressurized Solar Hot Water System Please read the instruction carefully before operation ...

Page 2: ...3 5 Connection with high efficiency pump 9 4 System description Standard solar system with 1 tank 1 collector field 10 5 Function s parameters and options 12 5 1 Overview of menu structure 12 5 2 Menu operation description 12 5 3 Value checking 13 5 4 Function checking 13 6 Functions operation and parameters setting for user 14 6 1 CLK Time setup 14 6 2 THET Timing heating 14 6 3 CIRC DHW circulat...

Page 3: ...el relay 44 7 11 OHQM Thermal quantity measurement 45 7 12 FS Flow meter selection and flow rate monitoring 48 7 13 UNIT C F Switch 50 7 14 RET Reset 50 7 15 PASS Password setup 51 7 16 M H Manual heating 52 7 17 Holiday function 52 8 Protection function 53 8 1 Memory function during power failure 53 8 2 Screen protection 53 8 3 Trouble checking 53 9 Quality Guarantee 54 10 Accessories 55 ...

Page 4: ...f other devices of a completed solar hot water system like solar collector pump station and storage please is sure to observe the appropriate installation instructions provided by each manufacturer Mounting wire connecting commissioning and maintenance of this controller may only be performed by the trained professional person the professional person should be familiar with this manual and follow ...

Page 5: ...d text incorrect incomplete and erroneous information and the resulting damage we do not take responsibility 1 5 Signal description Safety indication Safety indications in the text are marked with a warning triangle They indicate measures which can lead to injury of person or safety risks Operation steps small triangle is used to indicate operation step Note Contains important information about op...

Page 6: ...put 1 Grundfos Direct Sensor TM VFS simulation input 1 FRT rotary vane type electronic flow meter 1 485 communication port Outputs 2 Electromagnetic relay maximum current 2A 2 Semiconductor relay maximum current 2A 1 Potential free extra low voltage relay on off signal possible combined with HR controller 2 PWM variable frequency output on off switchable 0 10V Functions operating hours counter tub...

Page 7: ...nterior rooms Please separate routing of sensor wires and mains wires Make sure the controller as well as the system is not exposed to strong electromagnetic fields 3 1 Mounting controller Follow the below steps to mount the controller on the wall Unscrew the crosshead screw from the cover and remove it along with the cover from the housing Mark the upper fastening point on the wall Drill and fast...

Page 8: ... supply regulation Input ports T1 PT1000 temperature sensor for measuring the temperature of collector and thermal energy calculation T2 T6 NTC10K B 3950 temperature sensor for measuring temperature of tank and pipe Communication port 485 selectable ELA485 for remote control communication WIFI model should be purchased seperetely detailed see annexed part HK A HK B Dry connection on off signal por...

Page 9: ...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 Sensor cables may be extended to a maximum length of ca 100 meter when cable s length is up to 50m and then 0...

Page 10: ...valve Pump connection When R3 is for controlling 3 ways electromagnetic valve 3 is normally open port 2 is normally close port 1 is common port When R3 is for controlling pump 3 is normally open port 1 is common port 3 5 Connection with high efficiency pump Connecting the signal wire from the high efficiency pump ...

Page 11: ...ected to the corresponding port GND PWM1 of controller 2 Blue wire not always represent for GND and brown wire not always represent for PWM PWM from pump must be match for PWM from controller GND from pump must be match for GND from controller 4 System description Standard solar system with 1 tank 1 collector field Description The controller calculates the temperature difference between collector ...

Page 12: ...on pipe for thermal energy measurement selectable NTC10K HR After heating thermostat function Note 1 Sometime for one selected function it needs an extra input to connect temperature sensor or an extra output to control pump or electromagnetic valve in the case all inputs and outputs are in using and then this selected function will not be triggered even when you have activated it Controller can d...

Page 13: ...ation description Access main menu Press SET button to access main menu Press to select menu Press SET button to enter the submenu Access submenu After selecting main menu then press SET button to access submenu Press button to select submenu Press SET button to enter the value adjust interface or selection function select ...

Page 14: ...button select flow rate L M 0 0 displays Press SET button for 3 seconds beeper sounds du 3 times and then flow rate is set to a fixed value read from mechanical flow meter Electronic flow meter is switched off Note Flow rate display sterilization function auxiliary function and parallel relays function can only be displayed only when the function is activated When sterilization function is running...

Page 15: ...lectrical heater can be controlled automatically by this controller when tank temperature T3 drops below the switch on set point of this function electrical heater HR is triggered to heat tank up to the switch off temperature and then electrical heater HR stops working It is possible to set three time sections for activating this function Factory default set The first time section heating starts a...

Page 16: ...or T3 or T2 selectable if the T3 s or T2 s value is lower than the switch on temperature of back up heating the output relay HK and HR is switched on when T3 or T2 is higher than the switch off temperature of back up heating the output relay HK and HR are switched off Note If customer use electrical heater as back up please according to the power of electrical heater to equip corresponding safety ...

Page 17: ...ing heating tH3F 00 00 00 00 23 59 Switch off time of the third timing heating 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 Press SET button S3 blinks Press button to select desired sensor S3 for T3 S2 for T2 Press SET or ESC button to save ...

Page 18: ...s 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 6 3 CIRC DHW circulation pump controlled by temperature or by time Function description This controller provides an output for running DHW circulation pump which can be controlled by a temperature at this case an extra circuit pump connect t...

Page 19: ... it is stopped when T4 rises up to 45o C There is a precondition for triggering the DHW circuit pump set in submenu STAT START ON tank s temperature sensor T3 as priority selection is 2o 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...

Page 20: ...trol DHW pump TIME ON Time control DHW pump STAT ON ON OFF Tank temperature T3 or T2 2o C higher than the preset switch off DHW circuit temperature CYCO 40 3min 5 53 1 30min 0 5 1min Switch on temperature or running time CYCF 45 15min 7 55 0 60min 0 5 1min Switch off temperature or stop time t C1O 05 00 00 00 23 5 9 Switch on time and temperature for the first time section t C1F 07 00 00 00 23 5 9...

Page 21: ...nction Press SET or ESC button to save the setting Press button TEMP OFF displays on the screen temperature control Mode Press SET OFF blinks Press button to activate this function Press SET or ESC button to save the setting Press button TIME ON displays on the screen time control Mode default as on Press SET ON blinks Press button to deactivate this function Press SET or ESC button to save the se...

Page 22: ... Press SET time hour 05 blinks Press to adjust hour of the circuit start time 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 blinks Press to adjust hour of the circuit stop time Press SET time minute 00 blinks...

Page 23: ...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 Function description T control logic The controller works as a standard temperature differential controller If the temperature reaches or exceeds the switch on temperature difference DTO the pump R1 switches on When the t...

Page 24: ...ll be decreased by one step 10 accordingly Note To enable speed control function the corresponding pump type has to be set to MIN MAX and relay control has to be set to PULS PSOL PHEA or 0 10 V under adjustment menu PUMP SMX Maximum tank temperature protection set If the tank temperature reaches the adjusted maximum temperature the tank will no longer be loaded in order to avoid damage caused by o...

Page 25: ...HYST 2K 0 1 10K 0 1K Hysteresis of maximum temperature of tank 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 Press DTF 4K displays on the screen Press SET 4K blinks Press to adjust the switch off temperature of solar circuit pump Press SET...

Page 26: ...to protect the system components against overheating collector emergency shutdown If the maximum collector temperature OCEM is exceeded sign is displayed Warning Risk of injury Risk of system damage by pressure surge If water is used as the heat transfer fluid in pressurized systems water will boil at 100 C Then do not set the collector limit temperature higher than 95 C OCCO Collector cooling The...

Page 27: ...tect the fluid against freezing or coagulating If collector temperature exceeds the switch off 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 a...

Page 28: ...nction on ff CEM 130 80 200 1 Temperature of collector emergency shutdown hysteresis 10K OCCO OFF Collector cooling function on off CMAX 110 70 160 1 Temperature of collector cooling hysteresis 5K OCMI OFF Collector minimum temperature function on off CMIN 10 10 90 1 Temperature of collector minimum function OCFR OFF Anti freeze function on off CFRO 4 40 8 0 5 Switch on temperature of anti freeze ...

Page 29: ...ON displays on the screen Press SET ON blinks on the screen If it is necessary to shut down this function press to deactivate it Press SET or ESC to save the setting Press OCEM 130o C displays on the screen Press SET 130o C blinks on the screen Press to activate or deactivate the collector emergency function Press SET or ESC to save the setting Press ESC to return to the previous menu OCCO Collect...

Page 30: ...T OFF blinks on the screen Press to activate this function OCFR ON displays on the screen Press CFRO 4 o C displays on the screen Press SET 4 o C blinks on the screen Press to adjust the switch on temperature of antifreeze function Press SET or ESC to save the setting Press CFRF 5o C displays on the screen Press SET 5o C blinks on the screen Press to adjust the switch off temperature of antifreeze...

Page 31: ...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 control mode Function description With this parameter the relay control mode can be adjusted The following modes can be selected Adjustment for standard pump without speed control ONOF ...

Page 32: ...minimum speed for connected pumps can be allocated to the outputs R1 R2 3 Maximum pump speed Under the adjustment menu MAX1 2 a relative maximum speed for connected pumps can be allocated to the outputs R1 R2 4 When the devices which are not speed controlled are used e g motored valves the pump speed value of the corresponding relay must be set to 100 or the control Mode must be set to ONOF in ord...

Page 33: ...SOL OFF ON OFF PWM profile solar pump MIN1 30 20 95 5 MAX1 100 25 100 5 PHEA OFF ON OFF PWM profile heating pump MIN1 30 20 95 5 MAX1 100 25 100 5 0 10 OFF ON OFF 0 10V signal control pump speed MIN1 30 20 95 5 MAX1 100 25 100 5 Function setup Select PUMP menu Press SET PMP1 displays on the screen Press SET ONOF ON displays on the screen Press to select pump type PLUS PSOL PHEA 0 10V After select ...

Page 34: ...reached the solar pump remains running or will be switched on Solar loading is continued until either the temperature difference falls below the adjusted switch off value DTCF or the collector emergency shutdown temperature OCEM is reached Note This function will only be available when the collector cooling function external radiator heat transfer functions are not activated OSTC Tank cooling When...

Page 35: ...h on temperature the allocated relay for pump is energized with 100 if the collector temperature falls by 5 K below the adjusted collector overheat temperature the relay will be switched off When heat transferring is 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 lo...

Page 36: ...n temperature difference of cooling function DTCF 15K 0 5 29 5K 0 5K Switch off temperature difference of cooling function OHDP OFF ON OFF Heat transferring by external radiator only in case there is available output OTST 80o C 20 160o C 1o C Temperature set point for heat transferring hysteresis 5 o C OTPM ON OTPM ON pump logic OTPM OFF valve logic Pump control logic and valve control logic REL R...

Page 37: ...ference Press SET or ESC to save the setting Press DTCF 15K displays on the screen Press to adjust the switch off temperature difference Press SET or ESC to save the setting Press ESC to return to previous menu OHDP Heat transferring setting Press OHDP displays on the screen Press SET OHDP OFF displays Press SET OFF blinks Press to activate this function OHDP ON displays Press OTST 80 o C displays...

Page 38: ...perature difference between the sensors of heat source T5 and heat sink T3 as priority selection has exceeded the switch on temperature difference 2 The temperature at the solid fuel boiler sensor T5 has exceeded its minimum temperature MNSO 3 The temperature at the tank sensor T3 has fallen below its maximum temperature MXSS When the preset switch on temperature difference is exceeded pump speed ...

Page 39: ...Menu structure Main menu Submenu 1 Submenu 2 Factory set Adjustable range Step per adjust Description AUX Auxiliary functions SFB OFF ON OFF Solid fuel boiler function DTSO 6K 1 50K 0 5K Switch on temperature difference of SFB DTSF 4K 0 5 49 5K 0 5K Switch off temperature difference of SFB DTSS 10K 1 5 50K 0 5K Pump speed control temperature difference RISF 2K 1 20K 1K Pump speed control rise rang...

Page 40: ...ult no flow Function setup SFB Solid fuel boiler setting Select AUX main menu access SFB setting window Press SET SFB displays on the screen Press SET SFB OFF displays Press SET OFF blinks Press to activate this function SFB ON displays Press SET or ESC to save the setting Press DTSO 6K displays on the screen Press SET 6K blinks Press to adjust the switch on temperature difference Press SET or ESC...

Page 41: ...ting Press HEAT displays Press SET HEAT OFF displays Press SET OFF blinks Press to activate this function HEAT ON displays on the screen Press SET or ESC to save the setting Press DTHO 6K displays Press SET 6K blinks Press to adjust the switch on temperature difference of 2 tanks Press SET or ESC to save the setting Press DTHF 4K displays on the screen Press SET 4K blinks Press to adjust the switc...

Page 42: ...FF displays on the screen Press SET OFF blinks Press to activate this function BEEP ON displays on the screen Press SET or ESC to save the setting 7 7 MAN Manual operation For control and service work the operating mode of the relays can be manually adjusted For this purpose select the adjustment menu MAN for R1 R2 R3 HR to set output On OFF Manually Note When manual mode is activated sign blinks ...

Page 43: ...king protection function This function switches on the relays one after another every day at 12 00 a m and pump runs for 10s at 100 speed Menu structure Function setting Press 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 Function...

Page 44: ...ure exceeds the disinfection temperature disinfection phase DDIS starts and disinfection heating time countdowns countdown finishes disinfection heating finishes Menu structure Menu Submenu Factory set Adjustable range Step per adjust Description OTDI OFF ON OFF Disinfection function PDIS 7d 0 30d 1d Time section of disinfection monitoring DDIS 10min 1 180 1min Heating time of disinfection TDIS 70...

Page 45: ... save the setting 7 10 OPAR Parallel relay Function description With this function e g a valve can be controlled in parallel to the pump via a separate relay If solar loading starts to run R1 or if a solar function is active the selected parallel relay R3 will be energized at the same time The parallel relay can also be de energized inversely INVE OFF means R1 triggered parallel reply R3 also trig...

Page 46: ... measurement is default set in solar system it can not be reset Under menu FTYP to set the flow rate type to 1 Read the flow rate l min and enter it in the FMAX menu Under menu MEDT and MED to set the antifreeze medium type and concentration of the heat transfer fluid Antifreeze type 0 Water 1 Propylene glycol 2 Ethylene glycol 3 Tyfocol LS G LS Thermal quantity measurement with Grundfos Direct Se...

Page 47: ...ted correctly sign blinks on the sensor Thermal quantity measurement with rotary vane flow meter FRT Under menu FTYP set the flow type to 3 FRT The thermal quantity measurement uses the temperature difference between flow sensor T6 and return sensor T5 and the flow rate transmitted by the FRT flow meter Under menu MEDT and MED to set the antifreeze medium type and concentration of the heat transfe...

Page 48: ...n the screen Press SET OFF blinks Press to activate this function OHQM ON displays on the screen Press SET or ESC to save the setting Press FTYP 1 displays Press SET 1 blinks Press select type of the flow meter 1 2 and 3 Press SET or ESC to save the setting Press FMAX 6 displays on the screen Press SET 6 blinks Press to adjust flow rate Press SET or ESC to save the setting Press MEDT 3 displays on...

Page 49: ...ding pump dry running If relay R1 is powered flow rate of flow sensor will be monitored After a delay detection time DELA if no flow rate is detected error message will appear and sign will blinks on the screen If OFF option of the flow monitoring function is activated and then the loaded tank is stopped to be heated until error message is removed then monitoring function is activated again Note i...

Page 50: ... displays Press to activate this function VFS 1 12V displays on the screen Press select the range of Groudfos flow meter Press SET or ESC to save the setting Press FLOW OFF displays on the screen Press SET OFF blinks Press to activate this function FLOW ON displays Press SET or ESC to save the setting Press DELY 30 displays on the screen Press SET 30 blinks Press to adjust the checking time of non...

Page 51: ...ange Description UNIT Unit switch menu TEMP o C o C o F o C o F switch ENEG 1 Wh 1 Wh 2 BTU Thermal energy unit switch Function setting Select UNIT menu Press SET TEMP o C displays on the screen Press SET o C blinks Press to select temperature unit Press SET or ESC to save the setting Press ENEG 1 displays on the screen Press SET 1 blinks Press to select thermal energy unit Press SET or ESC to sav...

Page 52: ...s SET RSTP displays on the screen Press SET YES blinks Press SET for 3 seconds beeper sounds di 3 times YES lighting and it indicates system is recovered to factory set Press ESC return to the submenu Press CHQM displays repeat above steps to reset the CHQM CPT parameters 7 15 PASS Password setup Menu structure Function Setting Select the password setting PASS menu Press SET button PWDN 0000 displ...

Page 53: ...ith this controller to heat tank When tank temperature is lower than the set point of the switch on temperature manual heating function is in standby when you press the manual heating button heating will start and it works until tank temperature reaches to the set point Activate deactivate this function Press M H button for 3 seconds temperature 60 o C blinks on the screen Press to adjust the desi...

Page 54: ...set before power failure 8 2 Screen protection When no any press on button for 5 minutes screen protection is activated automatically and then LED background lamp is switched off Through press any button to light LED lamp again 8 3 Trouble checking The built in controller is a qualified product which is conceived for years of continuous trouble free operation If a problem occurs the most of causes...

Page 55: ... to failure When a user takes incorrect handling way incorrect installation improper or crude handling and wrong connection of Warm water outflow upwards The quality warranty expires within 18 months after the date of purchasing the controller On the screen sensor sign and warning sign blinks Sensor failure press button an error code instead of temperature displays on the corresponding sensor plac...

Page 56: ... 50mm A02 High accurate sensor for tank and pipe NTC10K B 3950 Ф6 50mm A05 304 stainless steel thermo well 304 stainless steel with thread 1 2 OT Size Ф8 200 WIFI To 485 Mode Input AC100 240V Output DC5V 1A Current 50mA Baud rate 9600bit s A13 Grundfos Direct Sensor VFS 1 12l min 2 40l min A17 FRT digital flow meter Parameter male thread 3 4 Power 5 24V DC ...

Page 57: ...or high power electrical heater Dimension 100mm 100mm 65mm Power supply AC180V 264V 50 60Hz Suitable power 4000W Available ambient temperature 10 50o C Waterproof grade IP43 SR802 connection diagram Note Switch off power and perform by profession installer ...

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