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Manual of SR258 intelligent controller



Put the cover on the housing. Attach with the fastening screw.

3.2 Wiring connection

According to the way of installation, wire can be connected from hole A on the bottom plate

or from hole B, using a suitable tool (like knife) to cut the plastic of A.

Note:

wires must be fastened by fixing clamps on the position C.

3.3 Terminal connection

3.3.1 Electri cal heating 1500W version terminal ports and wring

Note:

before opening the housing! Always disconnect the controller from power

supply and obey the loc al electrical supply regulation.



Input ports



T1: PT1000 temperature sensor, for measuring the temperature of collector and thermal

energy calculation.



T2 ~T5: NTC10K, B=3950 temperature sensor, for measuring temperat ure of tank and

pipe.



PWM1: Signal ports for high efficiency pump, detailed connect ion see below



FRT: For rotary vane type electronic flowmet er.

Содержание SR258

Страница 1: ... Operation Manual of the Intelligent Controller SR258 for Split Pressurized Solar Hot Water System Please read the instruction carefully before operation ...

Страница 2: ...lectrical heating 3000W version terminal ports and wring 8 3 4 Connection with high efficiency pump 10 4 System description Standard solar system with 1 tank 1 collector field 11 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 6 Functions operation and parameters setting for user 14 6 1 CLK Time setup 14 6 2 THET Timi...

Страница 3: ...rmal Disinfection function 43 7 10 FS Flow rate monitoring and pump dry running protection 45 7 11 UNIT C F Switch 46 7 12 RET Reset 46 7 13 PASS Password setup 47 7 14M H Manual heating 48 7 15 Holiday function 48 8 Protection function 49 8 1 Memory function during power failure 49 8 2 Screen protection 49 8 3 Trouble checking 49 9 Quality Guarantee 50 10 Accessories 51 ...

Страница 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 ...

Страница 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...

Страница 6: ...e type electronic flow meter Outputs 2 Electromagnetic relay R2 R3 maximum current 1A 1 Semiconductor relay R1 maximum current 1A 1 Electromagnetic relay HR maximum current 10A 15A 1 PWM variable frequency output on off switchable 0 10V Functions operating hours counter tube collector function thermostat function pump speed control external heat exchange adjustable system parameters and optional f...

Страница 7: ...2 5mm2 wiring directly 3 Installation Note The unit must only be located in the dry interior 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...

Страница 8: ...sition C 3 3 Terminal connection 3 3 1 Electrical heating 1500W version terminal ports and wring Note before opening the housing Always disconnect the controller from power supply and obey the local electrical supply regulation Input ports T1 PT1000 temperature sensor for measuring the temperature of collector and thermal energy calculation T2 T5 NTC10K B 3950 temperature sensor for measuring temp...

Страница 9: ...Output 1500W HR Electromagnetic relays designed for on off control of after heating thermostat function Max Current 10A 1 When power supply AC230V output HR is 1500W 2 When power supply AC110V output HR is 750W 3 3 1 Electrical heating 3000W version terminal ports and wring Input ports T1 PT1000 temperature sensor for measuring the temperature of collector and thermal energy calculation T2 T5 NTC1...

Страница 10: ...the cable is temperature resistant up to 280 o C connect the temperature sensors to the corresponding terminals with either polarity Only original factory equipped NTC10K B 3950 temperature sensors are approved for using with tank and pipe it is equipped with 3m PVC cable and the cable is temperature resistant up to 105 o C connect the temperature sensors to the corresponding terminals with either...

Страница 11: ... 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 Grundfos UPM3 SOLAR 15 75 130 CZA Note 1 High efficiency pump with 0 10V signal only has 2 signal wires connected to the corresponding port GND PWM1 of controller 2 Blue wire not always represent for GND and brown wire not always represe...

Страница 12: ... NTC10K HR Back up heating T3 Temperature of tank upper selectable NTC10K Auxiliary function Code Description Object sensor Object relays CIRC DHW circulation controlled by temperature or flow impulse T4 flow switcher connected on T4 port R2 OHDP Thermal transfer by external radiator R2 R3 selectable TIME Timer function R3 AH Thermostat function T2 T3 T5 selectable R3 Note Sometime for one selecte...

Страница 13: ...ction is activated if OHDP function is activated also and R2 output is selected for it and then CIRC will be deactivated automatically 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 ...

Страница 14: ...don t press any button in 3 minutes screen will exit the adjustment and return to the main interface 5 3 Value checking At the normal operation mode press button you can view the temperature of collector and tank pump speed n1 flow rate L M countdown time of disinfection function auxiliary function The controller operation time DAYS and firmware version SW Note 1 For the countdown time of disinfec...

Страница 15: ... 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 Note the reference sensor T3 or T2 of this function can be selected in parameter THTS It is possible to set three time sections for activating this fu...

Страница 16: ...ure Default set not adjustable The first time starts heating at 13 00 until temperature of 30 o C The second time starts heating at 14 00 until temperature of 35 o C The third time starts heating at 15 00 until temperature of 40 o C The forth time starts heating at 16 00 until temperature of 45 o C The fifth time starts heating at 17 00 until temperature of 50 o C Note If customer use electrical h...

Страница 17: ... 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 S2 displays on the screen Press SET button S2 blinks Press button to select desired sensor S3 for T3 S2 for T2 Press SET or ESC button to save the setting Press button to access intelligent heating mode SMT OFF displays on the screen Press SET button OFF bli...

Страница 18: ...thin 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 DHWcircuit pump controlled by temperature in three time sections flow switcher Function description This function is designed to get warm water quickly when customer open the stopcock In the case stopcock is closed hot water pipe is also used as th...

Страница 19: ...ich is mounted on the cold water pipe and sent to the controller and then controller will trigger the DHW circuit pump R2 and it pumps hot water from tank to the circuit pipe The running time of circuit pump is adjustable when the preset time runs out pump stops This stopcock seems like a remote controller to control the running of circuit pump This operation mode is an environment friendly energy...

Страница 20: ...switch fitting Material of fitting brass House plastic Connection G3 4 Reed of flow switch Max 300V DC 1A Note 1 Note the flow direction indicated on the flow switch 2 Lead the wires from flow switcher to input ports of controller no polarity required 3 Flow switch is not included in the delivery list of this controller please buy it separately Note 1 Three time sections flow switcher control mode...

Страница 21: ...circuit pump Tank temperature T3 or T2 T3 was prority is 2oChigherthanthe switch off temperature CYCO 40C 3min 5 53C 1 30 min 0 5C 1 min Switch on temperature or running time CYCF 45C 15mi n 7 55C 0 60 min 0 5C 1 min Switch off temperature or the rest 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 Switch off time and temperature for...

Страница 22: ...button to save the setting Press button MODE FS displays on the screen select time control mode Press SET FS blinks Press button to select time control mode Press SET or ESC button to save the setting Press button STAT ON displays on the screen condition of pump trigger on only available at three time sections temperature control mode Press SET button ON blinks default set is ON activate this func...

Страница 23: ... time section Press SET or ESC button to confirm the setting Press tC1F 07 00 displays on the screen to set the close time of the first time section Press SET button hour time 07 blinks Press button to adjust time hour of the close time of the first time section Press SET button minute time 00 blinks Press button to adjust time minute of the close time of the first time section Press SET or ESC bu...

Страница 24: ...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...

Страница 25: ...l 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 its adjusted maximum temperature the tank will no longer be loaded in order to avoid damage caused by ov...

Страница 26: ...unctions 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 or ESC to save the setting Press DTS 10K displays on the screen Press SET...

Страница 27: ...arning 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 collector cooling function keeps the collector temperature rising within the operating range by heating the tank If the tank temperature reaches 95 C the ...

Страница 28: ...he 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 ambient temperatures is around the freezing point only for a few days OTCO Tube co...

Страница 29: ... 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 hysteresis5 OCFR OFF Anti freeze function on off CFRO 4 40 8 0 5 Switch on temperature of anti f...

Страница 30: ...N 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 130 o C displays on the screen Press SET 130 o 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 Collec...

Страница 31: ...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 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 5 o C displays on the screen Press SET 5 o C blinks on the screen Press to adjus...

Страница 32: ...e screen Press SET 30 blinks Press to adjust runtime 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 Function description With this parameter the relay control mode can be adjusted The following modes can be selected ...

Страница 33: ...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 3 Maximum pump speed Under the adjustment menu MAX1 a relative maximum speed for connected pumps can be allocated to the outputs R1 4 When the devices which are not speed controlled are used e g motored valves...

Страница 34: ...d control PULS OFF ON OFF Pulse control Burst control via semiconductor relay for Pump with speed control MIN1 50 20 95 5 MAX1 100 25 100 5 PSOL OFF ON OFF PWM Solar pump MIN1 50 20 95 5 MAX1 100 25 100 5 PHEA OFF ON OFF PWM DHW pump MIN1 50 20 95 5 MAX1 100 25 100 5 0 10 OFF ON OFF 0 10V signal control pump speed MIN1 50 20 95 5 MAX1 100 25 100 5 Function setup Select PUMP menu Press SET ONOF ON ...

Страница 35: ... temperature and the switch on temperature difference DTCO is 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 he...

Страница 36: ...transferring by pump logic If the collector temperature reaches the switch on temperature OTST the heat transfer pump R2 R3 on If the collector temperature fall 5K below heat transfer temperature OTST the heat transfer pump R2 R3 off Heat transferring by valve logic If the collector temperature reaches the switch on temperature OTST the heat transfer valve R2 R3 and circuit pump R1 on If the colle...

Страница 37: ...just Description COOL Cooling function OSYC OFF ON OFF System cooling function OSTC OFF ON OFF Tank cooling function DTCO 20K 1 30K 0 5K Switch on 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 80 o C 20 160 o C 1 o C Temperatu...

Страница 38: ...F blinks Press to activate this function Press DTCO 20K displays on the screen Press SET 20K blinks Press to adjust the switch on temperature difference 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 di...

Страница 39: ...ime for this purpose an output R3 should be added AH Thermostat function Thermostat function is independent from solar system through output R3 it is possible to transfer the thermal energy from tank to radiator to reduce the tank temperature or increase the tank temperature by other heat source every day three time section can be set Note AHO AHF thermostat function is used to control the back up...

Страница 40: ...0 00 00 23 59 Start time of the second time section t 2F 00 00 00 00 23 59 Close time of the second time section t 3O 00 00 00 00 23 59 Start time of the third time section t 3F 00 00 00 00 23 59 Close time of the third time section AH OFF ON OFF Thermostat function AHS S3 S2 S3 S5 Reference sensor selection S3 for T3 S2 for T2 S5 for T5 AHO 40 0 0 95 0 5 Switch on temperature of thermostat functi...

Страница 41: ...s SET OFF blinks Press to activate this function TIME ON displays Press SET or ESC to save the setting Press t1O 00 00 displays on the screen Press SET hour 00 blinks Press to adjust the hour of start time of the first time section Press SET minute 00 blinks Press to adjust the minute of start time of the first time section Press SET or ESC to save the setting Press t1F 00 00 displays on the scree...

Страница 42: ...re Press SET or ESC to save the setting Press AHF 45 o C displays on the screen Press SET 45 o C blinks Press to adjust the switch off temperature Press SET or ESC to save the setting Press tA1O 00 00 displays on the screen Press SET hour 00 blinks Press to adjust the hour of start time of the first time section Press SET minute 00 blinks Press to adjust the minute of start time of the first time ...

Страница 43: ... 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 on the screen controller runs for 15 minutes and then switch off all output control exits manual mode ...

Страница 44: ...hes 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 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 Function descrip...

Страница 45: ...nfection 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 o C 0 90 o C 1 o C ...

Страница 46: ...m when solar pump R1 is triggered the flow rate of return pipe is monitored to ensure system runs normally If relay R1 is powered if controller hasn t got signal from digital flow meter within 30 seconds then solar pump R1 will be stopped error message will appear and sign will blinks on the screen By this function it can avoid pump dry running Note reasons for no flow rate in system No heat trans...

Страница 47: ...g 7 11 UNIT C F Switch Under this menu unit of temperature can be switched between o C degree celsius and Fahrenheit Menu structure 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 7 12 RET Reset RSTP Menu parameters through reset function all parameters can be reset to factory set...

Страница 48: ...0000 displays on the 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 OK displays on the screen it indicates the new password setting successfully ...

Страница 49: ...ture adjustable range 10 o C 80 o C factory set is 60 o C Press M H or ESC or waiting for 20 seconds to trigger the manual heating then manual sign lighted on the screen and the heating sign blinks the screen Press M H again switch off manual heating Note Manual heating is not a continuous heating process it is triggered manually and when the temperature reaches to the set point the heating proces...

Страница 50: ...en 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 is from the peripheral components but no relation with controller itself The following description of some well known problems should help ...

Страница 51: ... 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 warning sign and sensor sign blinks Sensor failure press button an error code instead of temperature displays on the corresponding sensor plac...

Страница 52: ...sor 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 A17 FRT digital flow meter Parameter male thread 3 4 Power 5 24V DC SR802 Unit for high power electrical heater Dimension 100mm 100mm 65mm Power supply AC180V 264V 50 60Hz Suitable power 4000W Available ambient temperature 10 50 o C Waterproof grade IP43 ...

Страница 53: ...Manual of SR258 intelligent controller 52 SR802 connection diagram Note Switch off power and perform by profession installer ...

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