Shandong Isentrol Electronic Technology Co., Ltd

SR1568 Solar Controller for Split Solar Heating System


Max.number of collectors:2 

Max.number of storage tanks:2 

Max.number of relays:7 

Max.number of sensors:8 

Max.number of application system:23 

Input2X PT1000 temperature sensors 

5X NTC10K, B=3950 temperature sensors 

1X Grundfos Direct Sensor TM (VFS type) 

1X Grundfos Direct Sensor TM (RPS type) 

Output3X Electromagnetic relay, Max. current 1A 

3X Semiconductor repay, Max. current 1A 

1X Potential-free extra-low voltage relay (on/off signal) 

3X PWM variable frequency output (switchable 0-10V)

Main technical data

Power  supply  :  100…240V/(50…60Hz)
Rated  impulse  voltage:2.5KV
Data  interface  :  TF  (Micro  SD)
485  current  supply60mA

HousingPlastic  ABS
MountingWall  mounting
Indication  /  Display:  System-Monitoring-Display,  for  visualization  of  the  systems,  TFT  colorful  display,  and  background  illumination
Operation:  5  push  buttons  at  the  front  cover
Protection  type:  IP41
Protection  class:  I
Ambient  temperature:  0-40  °C
Degree  of  pollution:  2
Dimensions:  208*158*43mm


Main functions

Timing  heating
Temperature  difference  control    3*ΔT
Collector  emergency  shutdown
Collector  cooling  function
Collector  low  temperature  protection
Collector  frost  protection
Tank  re-cooling  function
Celsius  and  Fahrenheit  transferring
Maximum  temperature  of  tank  (2*storage  tanks)
Maximum  turnoff  temperature  
(for  solid  fuel  boiler,  return  heating,  heat  transferring  between  tanks)
Minimum  turn-on  temperature  
(for  solid  fuel  boiler,  return  heating,  heating  transferring  between  tanks)
Anti-Legionella  function
Temperature  controlled  hot  water  circulation  pump
Switch  on/off  temperature  of  solid  fuel  boiler( Independent of system)
RPM  speed  controlling(2*semiconductors)
Thermal  energy  measuring
Priority  logic  of  multiple-tanks(  2*storage  tanks)
Pump  interval  function
Thermostat  function( Independent of system)
High  temperature  by-pass  function(Collector  cooling  down)
Solar  circulation  bypass
Circulating  pump  delay  function
Data-logging  onto  SD  memory  card
Internet  access
Manual  Control(  for  7  outputs:P1...P4,R1,R2,H1)
Password  setting
Recovery  to  factory  setting
Holiday  function
Manual  Heating
Temperature  query  function
Memory  Protection
Screen  protection
Trouble  shooting
Trouble  protection
Trouble  checking
Software  of  controller  upgrade


Manual: SR1568


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