Split Closed Loop Solar Heating System

Components:

Pressurized storage tank, heat pipe solar collector, working station and frame

Skylight Manifold and Heat Pipe Specifications:

1. Heat pipe wall thickness: 0.6mm
2. Length and diameter of condenser: 55mm/14mm
3. Start up speed: 30S
4. Start up temperature: 25^oC
5. Insulation: Polyurethane + Rock wool
6. Manifold casing material: Aluminum Alloy
7. Frame material and thickness: Aluminum Alloy 1.3mm
8. Inlet Outlet: Φ22 or G3/4 inch compression
9. Heat pipe material: Copper
10. Insulation: Polyurethane
11. Rubber seals and rings: UV stabilized high temperature silicon rubber
12. Test pressure: 9 bar
13. Collector mounting: Flat roof or inclined roof
14. Angle of operation: 10degree-80degree

Skylight Pressure Tank Specs

1. Model: SLPWT 100, 150, 200, 250, 300, 400, 500L

2. Material and thickness of the inner tank: SUS3042B,1.8-2.5mm

3. Material and thickness of the outer shell: Color steel sheet 0.5mm

4. Insulation thickness: 40mm, 50mm

5. Surface area heat exchanger top: 0.4 m²-0.7m²

6. Surface area heat exchanger bottom: 0.6-0.9 m²

7. Installation size of water pipe: NPT3/4"

8. Back-up: 2KW-3KW

9. Working pressure: 0.6Mpa

Working station information

1. It includes controller, Wilo pump and expansion vessel and other needed accessories. It controls the whole system.

2. There are single pipeline and double pipelines two types,

3. Single pipeline: SP106, SP116 and SP118

4. Double pipelines: SP226, SP228 and SP328

Working Principle

1. Skylight Temperature difference circulation: When the temperature difference between collector and tank reaches the setting starting value, the circulation pump start working to exchange the heat. When the temperature difference reaches the programmed shutdown value, the circulation pump will stop working.

2. Skylight Frost circulation: When the collector temperature drops below the programmed frost protection value, the circulation pump start working. When the tank temperature drops below 4 degree, the auxiliary heating element starts to heat the water till 20 degree, and close the auxiliary heating element. When the collector temperature rises to 7 degree, the circulation pump will stop working.

3. Skylight Auxiliary heating: When the temperature of the water at the top of tank drops below the programmed opening value, the auxiliary heating element starts to work. When it rises to the programmed closing value, the auxiliary heating element will stop working. Three different heating periods can be set every day.

High temperature protection: When the collector temperature rises to the programmed maximum value, the emergency shutdown function will start and the circulating pump will stop, in order to avoid damaging the solar system components because of high temperature.

4. Skylight Cooling protection: When the collector temperature rises to the maximum value, the circulation pump starts to work, until the collector temperature drops or the tank temperature rises to 95 degree. (Tank emergency shutdown temperature)

A 50/50 propylene glycol and water mixture will keep collectors from freezing. These systems require an expansion tank and a few other auxiliary components for filling, venting, and maintaining the system. A definite advantage to antifreeze systems is that the collectors can be mounted anywhere. These systems are pretty much the only choice in very cold climates. When there is not enough energy for sun, an electrical or gas back up element will be automatically switched on by controller.

Feature:

Simple Installation, No Maintenance, Effective operation

Easy Retrofitting to Existing systems

Suitable for single and multiple solar heating Application systems,

Preferred option for extremely cold areas and questionable water quality.

Incoming potable water is routed to the solar storage tank

Storage Tank with Electrical or gas Back Up

Double-walled Copper Coil heat exchangers in storage tank prevent contamination of household water.

Products:

closed loop solar water heater with single copper coil