Misol 220V controller of solar water heater, used for separated pressurized solar hot water system, for 4000W electrical heater

Description:

This listing includes: 1 unit of controller for pressurized solar water heating system, 220V.

It can connect 4000w(Max.) electrical element heater @ 220V.

Application:

It can be used for the solar hot water heating system: 1 collector array – 1 storage tank – 1 pump and auxiliary heating.

Delivery list

• 1 * SR81 controller
• 1 * accessory bag
• 1 * user manual
• 1 * PT1000 temperature sensor (φ6*50mm,cable length 1.5meter)
• 2 * NTC10K temperature sensor (φ6*50mm,cable length 3meter)
• (remark:there’s no power cable in the package, please prepare a power cable of 2.5mm²)

Function Introduction:

The solar circuit pump (R1) is switched on as soon as the switch-on temperature difference (△T on) between the collector array (T1) and the storage tank (T2) is reached.

If the temperature difference between the collector array (T1) and storage tank (T2) drops below the switch-off temperature difference (△T off), , or the temperature of storage tank (T3) reaches the preset maximum storage temperature, then the solar circuit pump (R1) is switched off.

Back-up heating by auxiliary boiler: within the preset time section of back-up heating, if the temperature T3 is below the switch-on temperature, then the circulation pump ( H1) of back-up heating is triggered, when T3 is heated to the switch-off temperature, circulation pump H1 of back-up heating is ceased.

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 visualization application system: 1

Size of Keypad:120mm x 120mm x 18mm
Size of Controller(1.5KW version): 200mm x140mm x43mm
Power supply: AC220-240V, 50-60Hz 
Power consumption: < 2.5W
Rated impulse voltage: 2.5KV
Housing: Plastic ABS
Protection type: IP41
Mounting: Wall mounting
Operation: 10 push buttons at the front cover.
Accuracy of temperature measuring: ± 0.1℃
Range of collector temperature measuring: -10℃ ~220℃
Range of tank temperature measuring: 0℃ ~110℃
Suitable power of pump: 3 pumps possible to be connected  
Suitable power of HK (backup electrical heater): 1pc : ˂=4000KW (@220-240V)

Inputs: 3 sensors
1pcs*Pt1000 sensor (≤500℃) for collector (silicon cable≤280oC)
2pcs*NTC10K B3950 sensor (≤ 135℃) for tank (PVC cable ≤105oC)
Outputs: 4 relays for circulation pump and backup heating
3*Electronmagnetic relay Max.current: 2A
HK relay(4KW version):20A

Ambient temperature: -10℃ ~ 50℃
Water proof grade: IP41

MAIN FUNCTION:

DATE---Date setting
Timed heat---backup heating
Circle---Hot water circulation
LOAD---Setup Loading tank1
COL---Collector1
PUMP---Pump control mode
COOL---Cooling function
AUX---Auxiliary function
MAN---Manual mode
BLPR---Blocking protection function
OTDI---Thermal disinfection function
FS---Flow meter type selection.
UNIT---C-F unit switch
RST---factory setting
PASS--- password set
Holiday function
Screen Protection
Trouble Protection
Trouble Checking

Display illustration: