SR21L for solar group pump station.

APPLICATIONS CAPACITY

Max.number of collectors:1 

Max.number of storage tanks:1 

Max.number of relays:4 

Max.number of sensors:5 

Max.number of application system:1

Timing  heating

Temperature  difference  control  1*ΔT

Collector  emergency  shutdown

Collector  cooling  function

Collector  low  temperature  protection

Collector  frost  protection

Tank  re-cooling  function

Celsius  and  Fahrenheit  temperature  switch

Maximum  temperature  of  tank(max.number  1)

Anti-Legionella  function

Temperature  controlled  hot  water  circulation  pump

RPM  speed  controlling(1*semiconductor)

Thermal  energy  measuring

Pump  interval  functions.

High  temperature  by-pass  function

Manual  Control( R1,R2,R3)

Password  setting

Recovery  to  factory  setting

Holiday  fucntion

Manual  Heating

Temperature  query  function

Memory  Protection

Screen  protection

Trouble  shooting

Trouble  protection

Trouble  checking

Diamension:450mm*300mm*158mm

Installation:  wall  mountingalso  suitable  for  mounting  into  patch  panels

Power  supply:200V-240V  AC  or  100V-130V  AC50-60Hz.  .     

Power  consumption:  < 3W

Accuracy of temperature measuring: ± 2℃ 

Range of collector temperature measuring: -10 ~200℃ 

Range of tank temperature measuring: 0 ~110℃ 

Suitable power of pump: 2 pumps possible to be connected power of each pump < 200W .

Inputs: 5 sensors

Pt1000 sensor (≤500℃ ) for collector (silicon cable≤280℃ )

NTC10K B3950 sensor (≤ 135℃ ) for tank (PVC cable ≤105℃ )

Outputs:2 relays for circulation pumps and 1relay for electromagnetic valve

Ambient temperature:-10℃~ 50℃ .

Water proof grade: IP40.