SR21M commerical dual pipe solar pump station for split pressurized solar boiler 110~240V

1, Photos:

2, Features:

Application capacity

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

Input: 2X PT1000 temperature sensors 5X NTC10K, B=3950 temperature sensors 1X Grundfos Direct Sensor TM (VFS type) 1X Grundfos Direct Sensor TM (RPS type) 

Output: 3X 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)
 

2, Technical datas:

<1>Timing  heating
<2>Temperature  difference  control    3*ΔT
<3>Collector  emergency  shutdown
<4>Collector  cooling  function
<5>Collector  low  temperature  protection
<6>Collector  frost  protection
<7>Tank  re-cooling  function
<8>Celsius  and  fahrenheit  transferring
<9>Maximum  temperature  of  tank  (2*storage  tanks)
<10>Maximum  turnoff  temperature  
(for  solid  fuel  boiler,  return  heating,  heat  transferring  between  tanks)
<11>Minimum  turn-on  temperature  
(for  solid  fuel  boiler,  return  heating,  heating  transferring  between  tanks)
<12>Anti-Legionella  function
<13>Temperature  controlled  hot  water  circulation  pump
<14>Switch  on/off  temperature  of  solid  fuel  boiler( Independent of system)
<15>RPM  speed  controlling(2*semiconductors)
<16>Thermal  energy  measuring
<17>Priority  logic  of  multiple-tanks(  2*storage  tanks)
<18>Pump  interval  function
<19>Thermostat  function( Independent of system)
<20>High  temperature  by-pass  function(Collector  cooling  down)
<21>Solar  circulation  bypass
<22>Circulating  pump  delay  function
<23>Datalogging  onto  SD  memory  card
<24>Internet  access
<25>Manual  Control(  for  7  outputs:P1...P4,R1,R2,H1)
<26>Password  setting
<27>Recovery  to  factory  setting
<28>Holiday  function
<29>Manual  Heating
<30>Temperature  query  function
<31>Memory  Protection
<32>Screen  protection
<33>Trouble  shooting
<34>Trouble  protection
<35>Trouble  checking
<36>Software  of  controller  upgrade

3, Working

4, Payment

<1> T/T(wire transfer)

<2> L/C at sight

<3> 30% T/T in advance as deposit, the rest paid before shipment

<4> 30% T/T in advance as deposit, the rest paid against B/L copy

5, Certificate

6, Our advantages:

<1> We have 8 senior engineers working on development. that will make us lead the trend whatever on structure or technolgy

<2> 15 QC control the quality, just make sure all is right

<3> Aftersale service is quick, any problem you mentioned will be dealt with in 24 hours!

<4> Our professional salesmen always online for your questions

7, Factory photos:

8, Contact:

Mr Krista Zhang

Position: Sales manager

Phone: 86-573-87090146

Mob: 0086-18857389277

Wechat: Zilansolar

Skype: Krista025

Website: www.zilansolar.com

For more details, pls send email to us, thanks!