Products Name : Split Solar Water Heater
Products Model : YYJ-S01
Product Details:  
Model number :  YYJ-S01
Type : Evacuated vacuum tube with heat 
  pipe solar water heater   
Pressure : Pressurized system 
Circulation type : Indirect/ Closed loop (Active)     
Connection type : Split solar water heater   
Installation : Both standing and freestanding  
Collector material : Aluminum alloy   
Certification : Keymark, EN12975, CE & CCC
Capacity : 150L to 700L
Place of Origin : Zhejiang, China
Brand Name : EJAI SOLAR & OEM
Use :  Bathroom 
Lead Time : 7 to 15 days


  • Water tank material(inner): Stainless steel SUS 304 2B     
  • Manifold casing: Aluminum alloy      
  • Manifold: Red copper     
  • Collector frame: Aluminum alloy/galvanized steel     
  • Vacuum tube: borosilicate glass 3.3 with tri-element coating     
  • Vacuum tube size: 58mm*1.8m / 47mm*1.5m     
  • Working station with grundfos pump     
  • Working pressure: MAX. 6 bar

Working Principle
Vacuum tube is composed of inner and outer glass pipe, inspiratory layer, vacuum space, inspriatory membrane. The surface of inner and outer glass tube is plated with selective absorption layer. The layer absorb the solar energy and turn it into heat energy, aluminum fins pass the heat energy to the heat pipe, the liquid medium in the heat pipe is heated by the heat energy, then turns into the gas medium, the gas medium flows up to the top of the heat pipe (condenser) and transfer the energy to the copper manifold header heat pipe. At the same time the gas medium turns into the liquid when cooled, then flows down. Keep recycling.

An electrical controller measures the temperature of the solar collector and the water in the bottom of the storage tank. If the collector is hotter, meaning there is heat available. The controller supplies power to a circulation pump in which circulation system circulating. The heat will transfer to storage tank via the liquid.



Evacuated Tube
Magnesium Bar Working Station

Feeding Pump

Copper Coil
Circulation Pump

Split Series
Solar Collector
Balcony Series
Integrated Pressurization
Integrated Non-Pressurization
Pre-Heated System
Evacuated Tube
Solar Basics
How does solar help the environment?
What is Evacuated Tube?
What is Heat Pipe?
What is Insolation?
What is insolation in my area?
How much energy can solar collector Produce?
Ejai Installation Guide

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