SUNFLOWER SR91 Operating Instructions Manual Download Page 32

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Instruction of SR91 Split Pressurized Solar Hot Water System

Page 31 of 49

Menu structure

Main

men

Subm

enu

Subm

enu

Facto

set

Adjustable

range

Step

per

adjust

Description

COO
L

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

℃

20-160

℃

Temperature set point for heat

transferring ( hysteresis 5

OTPM ON

OTPM
ON=pump
Logic
OTPM
OFF=Valve
logic

Pump control logic and valve

control logic

REL

R3,R2

Output ports

Function setting:

OSTC (Tank cooling) setup

►Select “OSTC” function submenu,”OSTC” displays on

the screen

Summary of Contents for SR91

Page 1: ...Operation Instruction SR91 Intelligent Controller for Split Pressurized Solar Hot Water System Please read this instruction carefully...

Page 2: ...Terminal allocation of controller for electrical heater of 1500W 9 3 3 2 Terminal allocation of controller for electrical heater of 3000W 4000W 10 4 System description Standard solar system with 1 tan...

Page 3: ...ning protection 40 8 10 UNIT C F Switch 42 8 11 RET Reset 42 8 12 PASS Password set 43 8 13 Manual heating 44 8 14 ECO Economic mode 44 8 15 DHW circuit pump triggered manually 45 8 16 On Off controll...

Page 4: ...ntroller used for a solar hot water system for mounting of other devices of a completed solar hot water system like solar collector pump station and storage please is sure to observe the appropriate i...

Page 5: ...manual and provided the best of our knowledge and ideas however inevitable errors maybe exist Please note that we cannot guarantee that this manual is given in the integrity of image and text incorrec...

Page 6: ...g Exceed the maximum temperature of storage SMX Running of storage emergency shutdown function Running of collector emergency shutdown function OCEM Running of collector cooling OCCO Running of tank c...

Page 7: ...e Note controller for 3000W electrical heater has no power cable delivered user should prepare a cable of 2 5mm 2 3 Installation Note The unit must only be located in the dry interior rooms Please sep...

Page 8: ...eps to mount the controller on the wall Select the proper place to install main board of controller Put the hung housing plate on the wall and mark the upper fastening point Drill the holes and put th...

Page 9: ...ler housing is closed Installer should be sure that the IP safety protection grade of controller isn t damaged during installation According to the way of installation wire can be connected from hole...

Page 10: ...1 connect red wire 12V Port 2 connect white wire COM Port 3 connect black wire GND Note please lead wire into indoors and fix the cable outdoors 1500W Output ports Input Ports L N for power connectio...

Page 11: ...ctromagnetic relays designed for on off control of back up heating device Max Current 15A AC230V for 3000W electrical heater 110VAC for 1500W electrical heater 4000W Output HR Electromagnetic relays d...

Page 12: ...ors 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 75mm 2 cable should be used When cable s length is up to 1...

Page 13: ...3 output is selected for OHDP function other two functions AH TIME will be closed automatically When one of these three functions OHDP TIME AH is activated and then the other two will be deactivated a...

Page 14: ...ption 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...

Page 15: ...can only be displayed only when these functions are triggered When thermal sterilization function is running time of thermal sterilization can be checked When one of any auxiliary functions is runnin...

Page 16: ...ure may be different The adjustable range of switch on temperature is 0 o C OFF 2 o C switch off temperature range is ON 2 o C 95 o C SMT Intelligent heating At the case that solar energy is insuffici...

Page 17: ...59 0 93 0 5C Switch on time and temperature of the first heating section tH1F 05 00 50 00 00 23 59 2 95 0 5C Switch off time and temperature of the first heating section t H2O 10 00 40 00 00 23 59 0...

Page 18: ...f the switch on time Press SET button temperature 40 blinks Press button to adjust the switch on temperature Press SET or ESC button to save the setting Press button to access the window of the switch...

Page 19: ...rises up to the switch off temperature pump is stopped 2 controlling modes are designed for running DHW circulation pump Time controlled DHW pump within the preset 3 time sections default Mode Within...

Page 20: ...same time when time controlled Mode is selected then temperature controlled Mode can t be activated Default time section The first time section starts at 05 00 stops at 7 00 runs at 40 o C stops at 4...

Page 21: ...t function TEMP OFF Temperature control DHW pump TIME ON Time control DHW pump STAT ON ON OFF Tank temperature T3 2 o C higher than the preset switch off DHW circuit temperature CYCO 40 3min 5 53 1 30...

Page 22: ...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 set...

Page 23: ...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 ti...

Page 24: ...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 fi...

Page 25: ...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 p...

Page 26: ...ure of tank S3 for T3 S2 for T2 Press SET or ESC to save the setting Press HYST 2K displays on the screen Press SET 2K blinks Press to adjust the hysteresis of tank maximum temperature Press SET or ES...

Page 27: ...en the heat transfer function OHDP is not activated OCMI Collector minimum temperature The minimum collector temperature is the lowest temperature of collector only when collector temperature is highe...

Page 28: ...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 5 o C OCMI OFF Collect...

Page 29: ...OCCO Collector cooling function setup Select OCCO submenu 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 OCE...

Page 30: ...this function tank cooling heat transferring by external radiator OSTC Tank cooling When the tank cooling function is activated the controller aims to cool down the tank during the night in order to...

Page 31: ...y 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 collector temperature fall 5K below heat transfer temperat...

Page 32: ...ence 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 OTS...

Page 33: ...tup Select OHDP function sub menu OHDP displays on the screen Press SET OHDP OFF displays on the screen Press SET OFF blinks on the screen Press to activate this function OHDP ON displays on the scree...

Page 34: ...y day 3 heating time sections can be set Note AH O AH F Thermostat function is used for after heating AH O AH F Thermostat function is used for releasing surplus energy from tank When sign AH displays...

Page 35: ...Start time of the first time section t 1F 00 00 00 00 23 59 Close time of the first time section t 2O 00 00 00 00 23 59 Start time of the second time section t 2F 00 00 00 00 23 59 Close time of the...

Page 36: ...ird time section BEEP OFF ON OFF Beeper warning function sensor fault no flow Function Setting TIME Timer function Setting Select AUX main menu press SET to access TIME submenu Press SET TIME OFF disp...

Page 37: ...unction AH ON displays on the screen Press SET or ESC to save the setting Press AHS S3 displays on the screen Press SET S3 blinks Press to select the object sensor for thermostat function Press SET or...

Page 38: ...e start and close time e g 10 00 start 10 00 close BEEP Beeper warning function setting Select BEEP submenu BEEP displays on the screen Press SET BEEP OFF displays on the screen Press SET OFF blinks P...

Page 39: ...s SET or ESC to save the setting Press R2 displays repeat above steps to set the manual output of R2 R3 HR Note when a output is triggered manually only this output is triggered others running output...

Page 40: ...sinfection 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...

Page 41: ...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 8 9 FS Flow rate monitoring and pump dry running protection Funct...

Page 42: ...ion is activated again Note reasons of no flow in the solar system No flow due to pipe leakage in system Circuit pump is damaged Digital flow counter is blocked or damaged Under this menu it is possib...

Page 43: ...rature can be switched between Celsius and Fahrenheit Manual 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...

Page 44: ...links Press button to enter the second digital Press SET button again the third digital blinks Press button to enter the third digital Press SET button again the forth digital blinks Press button to e...

Page 45: ...sired temperature adjustable range 10 o C 80 o C factory set is 60 o C Press Manual Heating or ESC or waiting for 20 seconds to trigger the manual heating then manual sign displays on the screen heati...

Page 46: ...tion is used for operating the system when no water consumption is expected e g during a holiday absence This function cools down the system in order to reduce the thermal load Activate deactivate thi...

Page 47: ...p is switched off Through press any button to light LED lamp again 10 Trouble checking The built in controller is a qualified product which is conceived for years of continuous trouble free operation...

Page 48: ...controller 1 White wire connection broken or not connected reliably 2 Communication error on display or on main controlle On the screen sensor sign and warning sign blinks Sensor failure press button...

Page 49: ...installation improper or crude handling and wrong connection of Warm water outflow upwards we don t take the responsibilities caused by before mentioned actions The quality warranty expires within 18...

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SUNFLOWER SR91, Operating Instructions Manual

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