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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

switch-on temperature difference, the solar circulation

pump (R1) will be switched on and the tank will be

loaded until the switch-off temperature difference or the

maximum tank temperature is reached.

Sensor Description

Relay

Description

Temperature of collector Pt1000

Solar circulation pump

Temperature of tank base NTC10K

Available selectable functions:

1.CIRC

（

DHW circulation

）

2.OHDP

（

Thermal transfer,R2 or R3

selectable

）

Temperature of tank upper

( selectable) NTC10K

DHW sensor, NTC10K

1. TIME (timer function)

1. AH

（

thermostat function

）

Selectable sensor, free NTC10K

Back-up heating/

Note:

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 distinguish it automatically and switch-off this function.

1. When one of these functions (TIME, AH) is activated, and then the other one will be

deactivated automatically.

2. After CIRC function is activated, if OHDP function is activated also and R2 output is

selected for it, and then CIRC will be deactivated automatically.

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: ...p 8 4 System description Standard solar system with 1 tank 1 collector field 10 5 Function s parameters and options 11 5 1 Overview of menu structure 11 5 2 Menu operation description 11 5 3 Value checking 12 6 Functions operation and parameters setting for user 12 6 1 CLK Time setup 12 6 2 THET Timing heating 13 6 3 CIRC DHW circulation pump controlled by temperature or by time 16 7 Function oper...

Страница 3: ...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 44 7 14M H Manual heating 45 7 15 Holiday function 45 8 Protection function 46 8 1 Memory function during power failure 46 8 2 Screen protection 46 8 3 Trouble checking 46 9 Quality Guarantee 47 10 Accessories 48 ...

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: ...sensor input 1 FRT rotary vane type electronic flow meter Outputs 2 Electromagnetic relay R2 R3 maximum current 2A 1 Semiconductor relay R1 maximum current 1A 1 Electromagnetic relay HR maximum current 10A Note a 110VAC main supply max power 750W b 230VAC main supply max power 1500W 1 PWM variable frequency output on off switchable 0 10V Functions operating hours counter tube collector function th...

Страница 7: ...xposed 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 fasten the enclosed wall plug and screw leaving the head protruding Hang the housing from the upper fastening point and mark the ...

Страница 8: ...nnection see below FRT For rotary vane type electronic flowmeter Advice regarding the installation of temperature sensors Only original factory equipped Pt1000 temperature sensors are approved for using with the controller it is equipped with 1 5m silicon cable and suitable for all weather conditions the cable is temperature resistant up to 280 o C connect the temperature sensors to the correspond...

Страница 9: ...nd then 0 75mm 2 cable should be used When cable s length is up to 100m and then 1 5mm 2 cables should be used Output ports FU1 2A 250V fuse Input Ports L N for power connection L live wire N zero wire protective wire Output R1 Semiconductor relays SCR designed for pump speed control Max Current 1A Output R2 Electromagnetic relays designed for on off control of pump or 3 ways electromagnetic valve...

Страница 10: ...cted 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 represent for PWM PWM from pump must be match for PWM fro...

Страница 11: ...1 CIRC DHW circulation 2 OHDP Thermal transfer R2 or R3 selectable T3 Temperature of tank upper selectable NTC10K T4 DHW sensor NTC10K R3 1 TIME timer function 1 AH thermostat function T5 Selectable sensor free NTC10K HR Back up heating Note 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 ca...

Страница 12: ...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 Access submenu After selecting main menu then press SET button to access submenu ...

Страница 13: ...ate 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 disinfection auxiliary function you can only check them when the function is activated in the parameter menus 2 At the value check interface if you don t press any button within 3 minutes screen will exit the check interface and return to th...

Страница 14: ...tion heating starts at 10 00am stops at 10 00am The third time section heating starts at 17 00am stops at 22 00am and switch on temperature is set at 50o C switch off temperature is set at 55o C If you want to shut off one timing heating then you can set the turning on time and turning off time with a same value for example set second start time tA2 O at 10 00 and set the stop time tA2 F at 10 00 ...

Страница 15: ...menu Factory set Adjustable range Step per adjust Description THET Timing heating THTS S3 S2 S3 Select desired sensor for timing heating function S3 for T3 S2 for T2 SMT Intelligent timing heating tH1O 04 00 40 00 00 23 59 0 OFF 2 0 5 Switch on time and temperature of the first timing heating tH1F 05 00 50 00 00 23 59 ON 2 95 0 5 Switch off time and temperature of the first timing heating t H2O 10...

Страница 16: ...nute time 00 blinks Press button to adjust minute of the switch on time Press SET button to set the switch on temperature 40 o C blinks Press button to adjust the switch on temperature Press SET or ESC button to save the setting Press button to set stop time of the first time section tH1F 05 00 displays on the screen Press SET button hour time 05 blinks Press button to adjust hour of the switch of...

Страница 17: ...rculation pump Time controlled DHW pump within the preset 3 time sections default Mode Within the preset time section when running of the DHW circulation pump R2 is controlled by time at this case pump is triggered by time as default set pump R2 runs for 3 minutes adjustable range 1 30 minutes and then ceases for 15 minutes adjustable range 0 60 minutes same process repeated within the preset time...

Страница 18: ... 00 The first time section start at 17 00 stop at 22 00 If it is needed to close one time section just set the start time and stop time at a same value e g 10 00 starts 10 00 stops Note 1 Only one controlling Mode can be selected either time control Mode or temperature control Mode 2 If sensor T4 should be installed in order to avoid measuring error please ensure to install the sensor at 1 5m far ...

Страница 19: ...tion t C1F 07 00 00 00 23 59 Switch off time for the first time section t C2O 11 00 00 00 23 59 Switch on time for the second time section t C2F 13 00 00 00 23 59 Switch off time for the second time section t C3O 17 00 00 00 23 59 Switch on time for the third time section t C3F 22 00 00 00 23 59 Switch off time for the third time section Function setup take temperature controlled DHW as example Se...

Страница 20: ...on Press SET or ESC button to save the setting Press button CYCO 40o C displays on the screen set the switch on temperature of DHW circuit if select time control Mode then CYCO 03Min displays here take temperature mode as example Press SET 40 o C blinks Press button to adjust the switch on temperature adjustable range 0 o C OFF 2o C Press SET or ESC button to save the setting Press button CYCF 45 ...

Страница 21: ...peat above step to set start and stop time for second and third time section If you want to close the DHW circuit within one time section and then just set its start time and close time with a same value for example at the second time section start time is set at 10 00 but close time is also set at 10 00 7 Function operation and parameter setup engineer 7 1PWD Password Menu structure Access main m...

Страница 22: ...rature difference 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 differ...

Страница 23: ...ion function is deactivated automatically Menu Structure Main menu Submenu Factory set Adjustable range Step per adjust Description LOAD Tank heating DTO 6K 1 50K 0 5K Switch on temperature difference of tank heating DTF 4K 0 5 49 5K 0 5K Switch off temperature difference of tank heating DTS 10K 1 5 50K 0 5K Temperature difference of pump speed control RIS 2K 1 20K 1K Rise range of pump speed cont...

Страница 24: ...p Press SET or ESC to save the setting Press RIS 2K displays on the screen Press SET 2K blinks Press to adjust the rise range of pump speed control Press SET or ESC to save the setting Press SMX 70 o C displays on the screen Press SET 70 o C blinks Press to adjust the maximum temperature of tank Press SET or ESC to save the setting Press SMAX S3 displays on the screen Press SET S3 blinks Press sel...

Страница 25: ...lector temperature the solar pump is switched on again until the collector temperature falls below the maximum collector temperature The tank temperature may then exceed its maximum temperature but only up to 95 C emergency shutdown of the tank and sign blinks on the screen system stops If the collector cooling is active blinks on the screen This function is only available when the system cooling ...

Страница 26: ...unction This function is used for improving the switch on behavior in systems with non ideal sensor positions e g with some tube collectors This function operates within an adjusted time section It activates the collector circuit pump R1 for an adjustable runtime between adjustable pauses in order to compensate for the delayed temperature measurement If the runtime is set to more than 10s the pump...

Страница 27: ...teresis 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 function CFRF 5 39 9 0 5 Switch off temperature of anti freeze function OTCO Tube collector function TCST 07 00 00 00 23 00 1min Start time of tube collector function TCEN 19 00 00 00 23...

Страница 28: ...OCCO Collector cooling function setup Press OCCO displays on the screen Press SET OCEM OFF displays on the screen Press SET OFF blinks on the screen Press to activated this function OCEM ON displays on the screen Press CMAX 110 o C displays on the screen Press to adjust the switch on temperature of collector cooling function Press SET or ESC to save the setting Press ESC to return to previous menu...

Страница 29: ...mperature of antifreeze function Press SET or ESC to save the setting Press ESC to return to the previous menu OTCO Tube collector function setup Press OTCO displays on the screen Press SET OTCO OFF displays on the screen Press SET OFF blinks on the screen Press to activated this function OTCO ON displays on the screen Press TCST 07 00 displays on the screen Press SET 07 blinks Press to adjust hou...

Страница 30: ...he 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 Adjustment for standard pump without speed control ONOF Pump on pump off Adjustment for standard pump with speed control PULS Burst control via semiconductor relay Adjustment for high efficiency pump HE pump PSOL PWM profile solar pump P...

Страница 31: ...ustment 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 the pump speed value of the corresponding relay must be set to 100 or the control Mode must be set to ONOF in order to deactivate pump speed control Menu structure Main menu Submenu 1 Submenu 2 Factory set Adjustable range S...

Страница 32: ...fter select pump type press SET to access the pump type Press SET OFF blinks on the screen Press to open Press SET or ESC to save the setting Press ESC to return to previous menu Note Only 1 type can be selected from 5 types ONOF PLUS PSOL PHEA 0 10V Example when PLUS ON open option is selected then other four types are closed automatically 7 5 COOL Cooling function Function description There are ...

Страница 33: ...nd down to the switch on temperature difference DTCO of this cooling function then system will be activated in order to cool down the tank by releasing the energy through the collector If tank cooling function is activated sign blinks on the screen Note if tank temperature reaches to 95 o C all cooling functions will be locked Hysteresis switch on temperature difference is 5K OHDP Heat transferrin...

Страница 34: ...ning Sign displays on the screen it indicates that pump logic heat transferring is running Note 1 When collector overheat temperature OTST is 10K below the CEM temperature of collector emergency shutdown then collector overheat temperature OTST is locked 2 Heat transferring function is only available when collector cooling function OCCO and system cooling function OSYC are deactivated Menu structu...

Страница 35: ... in case there is available output OTST 80 o C 20 160 o C 1 o C Temperature set point for heat transferring hysteresis 5o C OTPM ON OTPM ON pump logic OTPM OFF valve logic Pump control logic and valve control logic REL R3 R3 R2 Output ports Function setting OSYC system cooling function setting Select COOL main menu Press SET select submenu OSYC Press SET OSYC OFF displays on the screen Press SET O...

Страница 36: ...ing 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 Press SET 80 o C blinks Press to adjust the temperature of heat transferring Press SET or ESC to save the setting Press button OTPM ON displays Press SET ON blinks Press...

Страница 37: ...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 heater AHO AHF thermostat function is used to transfer heat from tank to reduce tank temperature Sign AH displays on the screen it indicates thermostat function is activated Sign AH ...

Страница 38: ...3 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 function AHF 45 0 0 94 5 0 5 Switch off temperature of thermostat function t A1O 00 00 00 00 23 59 Start time of the first time section t A1F 23 59 00 00 23 59 Close time of the first time section ...

Страница 39: ... blinks Press to adjust the hour of close time of the first time section Press SET minute 00 blinks Press to adjust the minute of close time of the first time section Press SET or ESC to save the setting Press to access the second time section setting same like above steps to set the second the third time section If one of time section needs to be closed then just set the start time and close time...

Страница 40: ...e time of the first time section Press SET minute 59 blinks Press to adjust the minute of close time of the first time section Press SET or ESC to save the setting Press to access the second time section setting same like above steps to set the second the third time section If you want cease the thermostat function within a time section then just set its start time and close time with a same value...

Страница 41: ...ff HR OFF ON OFF HR on and off Function setup Press R1 displays on the screen Press SET R1 OFF displays Press SET OFF blinks Press to activate this function R1 ON displays Press SET or ESC to save the setting Press R2 displays repeat above steps to set the manual output of R2 R2 HR 7 8 BLPR Blocking protection Function description In order to protect the pumps against blocking after standstill the...

Страница 42: ...re is continuously exceeded the disinfection temperature TDIS for the entire disinfection period DDIS Thermal disinfection can only be completed when the disinfection temperature is exceeded for the duration of the disinfection period without any interruption The monitoring period PDIS starts as soon as the temperature at the allocated sensor falls below the disinfection temperature TDIS once the ...

Страница 43: ...ust the heating time of disinfection Press SET or ESC to save the setting Press TDIS 70 o C displays on the screen Press SET 70o C blinks Press to adjust the temperature of disinfection Press SET or ESC to save the setting Press SDIS 18 00 displays on the screen Press SET 18 blinks Press to adjust the start time of the disinfection Press SET or ESC to save the setting 7 10 FS Flow rate monitoring ...

Страница 44: ...splays on the screen when circuit pump R1 is running at the checking status you can check the flow rate by press button and check current flow rate L M Note digital flow meter FRT is not included in the delivery list it is needed to buy separately see its specification in item 10 Menu structure Function setting Select FS menu Press SET FS OFF displays Press SET OFF blinks Press to activate this fu...

Страница 45: ... reset function all parameters can be reset to factory setting Menu structure Function setting Select RST menu Press 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 7 13 PASS Password setup Menu structure Function Setting Select the password setting...

Страница 46: ...al heating Function Description It is possible to trigger back up heating manually with 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 b...

Страница 47: ... again controller will keep the parameters which 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...

Страница 48: ... 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 49: ...nsor 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 50o C Waterproof grade IP43 ...

Страница 50: ...Manual of SR258 intelligent controller 49 SR802 connection diagram Note Switch off power and perform by profession installer ...

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