SR81 solar water heater controller for split solar water heater controller ,updated version of SR868C8 with more function

1, Photos:

2, Breifing:

Old SR868C8 updated version

Temperature measurement accuracy:0.1C
10 push buttons at the front cover.
5 variants version can be optional
With separate keypad

3, Features:

Application 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 visualization application system: 1

4, Technical datas:

<1>FRT:1* Rotary vane type electron flow meter
<2>Size of Keypad:120mm x 120mm x 18mm
<3>Size of Controller(1.5KW version): 187mm x128mm x46mm
<4>Size of Controller(3KW version): 218mm x165mm x55mm
<5>Size of Controller(4KW version): 218mm x165mm x55mm
<6>Power supply: AC100-240V,50-60Hz. .  
<7>Power consumption: < 2.5W
<8>Rated impulse voltage: 2.5KV
<9>Housing: Plastic ABS
<10>Protection type: IP41
<11>Mounting: Wall mounting
<12>Operation: 10 push buttons at the front cover.
<13>Accuracy of temperature measuring: ± 0.1oC
<14>Range of collector temperature measuring: -10oC ~220oC
<15>Range of tank temperature measuring: 0oC ~110oC
<16>Suitable power of pump: 3 pump possible to be connected  
<17>Suitable power of HK (backup heating):
<18>1pc(1.5KW version) <1.5KW
<19>1pc(3KW version) <3KW
<20>1pc(4KW version) <4KW
<21>Inputs: 5 sensors,
1pcs*Pt1000 sensor (≤500oC) for collector (silicon cable≤280oC),
4pcs*NTC10K, B3950 sensor (≤ 135oC) for tank, (PVC cable ≤105oC),
<22>1*FRT Rotary vane type electron flow meter
<23>Outputs: 4 relays, for circulation pump and backup heating
<24>3*Electronmagnetic relay, Max.current 2A
<25>HK relay(1.5KW version):10A
<26>HK relay(3KW version):15A
<27>HK relay(4KW version):20A
<28>Ambient temperature: -10oC ~ 50oC.
<29>Water proof grade: IP41

5, Main functions:

<1>DATE---Date setting
<2>Timed heat---backup heating
<3>Circle---Hot water circulation
<4>LOAD---Setup Loading tank1
<5>COL---Collector1
<6>PUMP---Pump control mode
<7>COOL---Cooling function
<8>AUX---Auxiliary function
<9>MAN---Manual mode
<10>BLPR---Blocking protection function
<11>OTDI---Thermal disinfection function
<12>FS---Flow meter type selection.
<13>UNIT---C-F unit switch
<14>RST---factory setting
<15>PASS--- password set
<16>Holiday function
<17>Screen Protection
<18>Trouble Protection
<19>Trouble Checking

6, Connection

7, 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

8, Certificate

9, 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

10, Factory photos:

11, 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!