SR981s Solar Working Station
Introduction:
  APPLICATIONS CAPACITY  
  Max.number of collector loops: :2  
  Max.number of storage tank loops :2  
  Max.number of relays:4  
  Max.number of sensors:7  
  Max.number of application system:15 
 
Main technical data:
TECHNICAL  DATA 
Dimension:  420mm*280mm*155mm 
Power  supply:200V-240V  AC  or  100V-130V  AC50-60Hz.  .      
Power  consumption:  < 3W 
Accuracy of temperature measuring: ? 2oC 
Range of collector temperature measuring: -10oC ~200oC 
Range of tank temperature measuring: 0oC ~100oC 
Suitable power of pump: 3 pumps can be connected with a power of each pump < 200W . 
Suitable power electrical heating:1 relay for 1500W(1500w-4000w must use SR802) 
Inputs: 5sensors 
2pcs*Pt1000 sensor (?500oC) for collector (silicon cable?280oC) 
4pcs*NTC10K B3950 sensor (? 135oC) for tank (PVC cable ?105oC) 
Outputs:4 relays for circulation pumps or 3-way electromagnetic valve 
Ambient temperature:-10oC ~ 50oC. 
Water proof grade: IP42. 
Main functions:
MAIN  FUNCTIONS 
 
 
Pump  support: 
1.Normal  Pumps. 
2.High  Efficiency  pumps. 
 
 
Set  up  clock/week 
 
Functions  operation  and  parameters  setup  (user  grade) 
1  THET  Timing  heating 37 
2  CIRC  DHW  circuilation  function  activated  /deactivated 
3  tCYC  Tempeature  or  time  setting  for  DHW  pump  in  three  time  sections 
 
Functions  operation  and  parameter  setup  (engineer  grade) 
1.  DT  Temperature  difference  for  solar  circuit  pump 
2.  EMOF  Maximum  switch-off  temperature  of  collector  (for  collector  emergency  close  function) 
3.  CMX  Maximum  limited  temperature  of  collector  (collector  cooling  function) 
4.  CMN  Low  temperature  protection  of  collector 
5.  CFR  frost  protection  temperature  of  collector 
6.  REC  Recooling  temperature  of  tank 
7.  SMX1  Maximum  temperature  of  tank  1 
8.  SMX2  Maximum  temperature  of  tank  1 
9.  MAX1  Maximum  switch-off  temperature  for  heat  transfer  between  tank  and  heat  return 
10.  MIN1  Minmium  switch-on  temperature  for  heat  transfer  between  tank  and  heat  return 
11.  MAX2  Maximum  switch-off  temperature    for  heat  transfer  between  heat  exchanger  and  tank 
12.  MIN2  Minmium  switch-on  temperature    for  heat  transfer  between  heat  exchanger  and  tank 
13.  C?F  Switch  between  Celsius  and  Fahrenheit  |