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Split Pressurized System

Flexible Configuration
Indoor Tank Installation
Engineered for Complex Projects

  • Collector and tank installed separately for maximum layout flexibility
  • Pressurized system suitable for indoor installation and multi-floor supply
  • Compatible with flat plate and evacuated tube collectors
  • Designed for villas, high-end residences, and medium-scale projects
Split Pressurized System
Pressurized DesignMains pressure compatible
About the System

Split Pressurized Solar Water Heating System

Flexible, Scalable Solar Hot Water Solutions for Villas & Medium-Scale Projects

Indoor Tank InstallationStable Pressure SupplyEngineered for Complex Buildings

The SOLETKS Split Pressurized Solar Water Heating System is an engineering-grade solar thermal solution developed for projects that demand flexible system layout, stable hot water pressure, and reliable year-round performance.

Unlike integrated thermosiphon systems, the split configuration separates the solar collector field from the pressurized storage tank, allowing each component to be installed in its optimal environment.

Designed for villas, high-end residences, and medium-scale hot water applications, the system combines controlled pump circulation, closed-loop antifreeze protection, and pressurized indoor storage.

System Installation
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Split System Architecture

Separated Components for Optimal Performance

Collector
Tank

Separated Components

  • Collectors on roof or optimal solar exposure area
  • Storage tank indoors (basement, utility room)
  • Pump-driven circulation with controller
  • Closed-loop antifreeze medium
  • Pressurized supply to multiple floors

Maximum Layout Flexibility

Tank anywhere indoors, independent of collector

凍結防止

Antifreeze medium prevents winter damage

Stable Water Pressure

Consistent flow to all floors

製品概要

What Makes a Split Pressurized System Different

Separates heat collection and water storage for higher comfort, better freeze protection, and flexible building integration.

Detailed Explanation

Solar collectors on roof, storage tank and pump station indoors, connected through closed-loop antifreeze circuit. This decoupling overcomes physical and architectural limitations of integrated systems.

Particularly beneficial where roof load, aesthetics, indoor layout, or climate conditions are critical design factors.

Operates directly with mains water pressure, ensuring stable delivery to multiple outlets and floors without booster equipment.

Applicable Scenarios

Where Split Systems Are Preferred

Chosen to solve layout, pressure, and climate challenges that integrated systems cannot.

01

Villas & Premium Residences

Optimal solar exposure while maintaining architectural aesthetics.

02

Multi-Floor Buildings

Consistent water pressure at all outlets, even with simultaneous usage.

03

Cold Climate Regions

Closed-loop antifreeze prevents freezing damage and seasonal degradation.

Installation
システムアーキテクチャ

A Complete, Engineered Solar Solution

Each component plays a defined role within the hydraulic and control logic.

太陽熱コレクター

Flat plate or evacuated tube

Pressurized Tank

Internal heat exchange coil

Pump Station

Circulation and safety devices

Solar Controller

Intelligent management

Expansion Tank

Pressure regulation

Safety Valves

Protection and fittings

All components matched for balanced flow, stable pressure, and long-term reliability.

Working Principle

Why Controlled Circulation Improves Reliability

Precise heat transfer, freeze protection, and stable system behavior.

How the System Operates

Temperature Detection

Sensors detect difference between collector outlet and storage tank.

Pump Activation

Controller activates pump, transferring heat through closed-loop antifreeze.

Heat Exchange

Internal coil transfers heat while potable water remains isolated.

Adapts dynamically to weather, reduces thermal stress, prevents stagnation and overheating.

System DiagramSystem Flow Diagram
Control Logic制御ロジック
Advantages Over Integrated Systems

Engineering Trade-Offs Explained

Indoor Tank

Weather protected, better aesthetics

凍結防止

Closed-loop antifreeze circuits

Scalability

Expandable for higher demand

Flexible Layout

Optimal placement for complex buildings

Easy Integration

Connect with boilers, heat pumps

Higher complexity and cost—selected where performance stability outweighs simplicity.

太陽熱コレクター

Matching Collector Type to Project Needs

Climate Conditions

Temperature, radiation, seasonal variation

Roof Orientation

Azimuth, tilt, mounting area

温水需要

Daily volume and usage patterns

Flat Plate

平板集熱器

Durable, cost-effective for moderate climates.

Evacuated Tube

Evacuated Tube Collector

High-efficiency for cold regions.

Pressurized Storage Tank

Indoor Comfort and Safety

Tank
Tank Install

Tank Design and Features

Stainless steel and enamel tanks with internal heat exchange coils. High-density insulation minimizes heat loss. Auxiliary electric heating for low solar periods.

Stainless Steel / Enamel
Heat Exchange Coil
High-Density Insulation
Electric Backup
Indoor Installation
Pump Station & Hydraulic Control

The System's Control Center

Engineering Role

Integrates pumps, safety valves, air vents, and insulation into one module.

01

Circulation Management

Variable speed based on temperature differential

02

Safety Protection

Pressure relief and expansion vessels

03

Air Management

Automatic air vents for optimal circulation

04

Thermal Insulation

Minimizes heat loss in hydraulic circuit

Pump StationIntegrated Pump Station
ComponentsComponents
InterfaceInterface
DetailDetail
Precision Engineering

Every component calibrated for integrated hydraulic reliability.

Intelligent Controller

Automated and Safe Operation

ControllerDigital Control Unit
InterfaceUser Interface

制御ロジック

Manages pump operation, monitors temperatures, activates safety protections.

Pump Management

Auto start/stop on temperature

Temp Monitoring

Real-time collector/tank tracking

Safety Protection

Overheat, freeze, fault detection

Smart Monitoring

Remote access and optimization

Automation Benefits

  • Eliminates manual operation
  • Extends system lifespan
  • Optimizes energy harvest
  • Provides diagnostic data
Safety & Protection

Designed into the System

Safety

Protection Measures

Expansion tanks, T/P valves, air vents, and check valves manage pressure and thermal expansion.

Expansion Tanks

Stable system pressure

T/P Relief Valves

Automatic overpressure release

Air Vents

Maintain circulation efficiency

Check Valves

Prevent reverse flow

Design Philosophy: Every safety component positioned based on hydraulic analysis.

Installation Concept

Engineering Before Installation

Installation Principles

Collectors for optimal solar exposure; tanks and pumps indoors with maintenance access.

01

Collector Positioning

Orientation and tilt based on latitude

02

Indoor Placement

Protected with accessible service points

03

Hydraulic Layout

Minimized pipe runs, proper slope

04

Maintenance Access

Clear pathways for servicing

重要: Installation quality directly impacts reliability.

Installation
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Key Technical Parameters

システム概要

システムタイプ
Split pressurized solar system
タンク容量
5000L (customizable)
Collector Type
Flat plate / Evacuated tube
Circulation
Pump-controlled, closed loop
凍結防止
Antifreeze medium
バックアップ暖房
Electric / Boiler / Heat pump
Decision Guide

When a Split System Is the Right Choice

01

Multi-floor & Simultaneous Demand

Uniform flow and temperature stability at peak demand.

02

Indoor Installation Required

Safe indoor placement where rooftop tanks are restricted.

03

Cold & Variable Climates

Reliable freeze protection via closed-loop antifreeze.

04

Future Expansion

Expandable without redesigning the entire system.

Not Recommended

Very small households, no indoor space, or simplicity priority.

Climate & Market Adaptation

Global Deployment Strategies

Cold Climate

Antifreeze circuit + indoor tank eliminates freezing risk.

Temperate

Dynamic circulation + auxiliary heating for cloudy periods.

High Irradiation

Prevents overheating through matched collector/storage sizing.

Market-Oriented Deployment

Adapts to European safety standards, high-end residential comfort, and EPC-driven flexible design.

よくある質問

Common Engineering Questions

Can the storage tank be installed indoors?

Yes—core advantage. Improves safety, reduces exposure, simplifies maintenance.

How does it prevent freezing?

Antifreeze medium in closed-loop circuit + indoor tank placement.

Can it supply multiple bathrooms?

Yes. Mains pressure for multi-point, multi-floor stable supply.

Integrates with auxiliary energy?

Yes—electric heaters, gas boilers, or heat pumps.

What if solar is insufficient?

Auxiliary heating compensates automatically via controller.

Quality & Warranty

Long-Term Reliability

品質保証

System-level testing on hydraulic compatibility, pressure stability, and control logic.

Warranty & Support

Clear warranty, long-term spare parts, technical docs throughout service life.

Why SOLETKS

A System Engineering Partner

01

Technical Reliability

Validated design

02

Predictable Performance

Consistent quality

03

Long-Term Support

Lifecycle docs & parts

04

Market Adaptability

Flexible configuration

Building Long-Term Value Together

Cooperating with distributors, EPC contractors, and system integrators worldwide.

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