Turnkey PCB Assembly Service

Discover the Control Solution Development and PCBA Solutions

A PCB service refers to the complete range of technical and manufacturing processes surrounding Printed Circuit Boards — the core of every electronic control system.
It includes PCB design, component sourcing, assembly, testing, and mass production.

A Turnkey PCB Assembly Service is a fully integrated “one-stop” solution: customers simply provide product requirements, and we deliver the final assembled and tested control board — from concept to completion.

Choig offers exactly this kind of high-quality turnkey PCB assembly service, backed by deep expertise in water heater and heating controls.

Our PCB Design Service | Choig

Our PCB Design Service focuses on precision, reliability, and manufacturability.
With years of experience in water heating, electric heating, temperature regulation, and smart control systems, our engineering team provides customized PCB solutions tailored to each client's technical goals.

Core Design Capabilities

Electrical schematic design and circuit optimization
PCB layout and routing for high performance and EMI control
Component selection and cost optimization
Prototyping and validation testing
Software and hardware co-design for seamless integration

Our professional engineers — including hardware, software, and testing specialists — ensure that every design is both technically sound and ready for efficient production.

Advantages of Our Turnkey PCB Assembly Service

Advantage	Description
One-Stop Integration	From design to assembly, testing, and delivery — all handled in-house for full traceability and control.
Fast Development & Delivery	Streamlined workflow and standardized processes reduce lead time from prototype to mass production.
Quality & Reliability	Advanced inspection, functional testing, and performance verification ensure long-term stability.
Continuous Technical Support	Design and firmware adjustments based on real-world feedback to meet evolving needs.
Cost & Risk Control	Single-source management minimizes component mismatches, communication errors, and logistics risks.

Application Fields and Problems We Solve

Application Area	Key Technologies / Features	Problems Solved / Customer Benefits
Instant Electric Water Heaters	Precise temperature control, rapid heating, safety monitoring	Improves temperature accuracy, safety, and lifespan
Wall-Mounted Electric Boilers	Multi-function control (heating / circulation / temperature)	Simplifies system structure, enhances energy efficiency
Heat Pump Systems	Intelligent switching, energy-saving algorithms, remote monitoring	Enables efficient heating/cooling management and energy optimization
Home Temperature Control Devices	Smart sensing and automatic load control	Enhances comfort, automation, and energy balance
Commercial Heating Equipment	High-power load control, thermal protection, communication interface	Ensures safety and reliability under heavy-duty operation
Custom Electronic Control Modules	Tailored logic design and communication protocols	Shortens development time and meets OEM/ODM customization needs

Our Design and Production Process

Our projects follow a standardized development and quality management workflow, ensuring efficiency and precision at every stage:

Project Confirmation – Requirement definition and feasibility evaluation
Concept & Circuit Design – System architecture and logic planning
PCB Design – Schematic capture, layout, and routing
Prototype Fabrication – Sample production and in-house testing
Software Development – Firmware and control algorithm integration
Functional & Performance Testing – Verification of stability and safety
Customer Validation – Feedback collection and optimization
Mass Production & Technical Support – Final delivery and continuous service

Water Heating Control Board Electric Heating Control Board Heat Pump Control Board Drinking Water Treatment Control Board Cooling Fan Control Board

Electric Boiler Control Board

This solution is suitable for built-in wired controller and external wired controller for electric boiler, After adjustment will be suitable for shower and built-in tank Multifunctional control system.

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Instant Water Heater Control Board

This solution is applicable to all instant electric water heater models with constant temperature requirements and adjustable temperature display.

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Storage Water Heater Control Board

This solution is suitable for built-in or external water storage control systems with display

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Electric Heater Control Board

This solution is suitable for all kinds of electric heater with display

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Electric Oven Control Board

This solution is suitable for built-in or table electric oven with LCD display.

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Heat Pump Control Board

This control system is suitable for multifunctional domestic hot and cold water heat pump control systems with heating, cooling, domestic water and external energy.

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Chillerwater Boiler Control Board

This solution is suitable for Under-Sink boiler, chiller and sparkling water dispensor series with display.

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Cooling Fan Control Board

This control board solution is specifically designed for and fully compatible with household cooling fans that feature remote control functionality.

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Turnkey PCB Assembly Service Factory | Choig

Foshan Shunde Choig Electronic Technology Co., Ltd., located in CIMC Smart Valley Technology Park, is a technology-driven manufacturer specializing in electronic control systems for water heating, electric heating, and temperature management.

Technical Strengths

Experienced R&D Team: Hardware, software, and testing engineers working in cross-discipline collaboration.
Advanced Equipment: SMT lines, AOI inspection, functional test benches, and safety verification systems.
Rigorous Design Standards: Each project follows schematic review, component verification, and performance benchmarking.
Comprehensive Testing: Thermal balance, high-voltage endurance, and environmental reliability tests before shipment.
Continuous Improvement: Design and firmware optimization based on customer field feedback.
Proven Expertise: High-accuracy temperature control, multifunctional heating control, and integrated heat pump management solutions.

Related Application

Our Advantage

Application of Water Dispensor Control Board

The water dispensers we use are drinking water that is made from tap water with relatively good water quality, which is then refrigerated or boiled after coarse filtration.

Application of Storage Electric Water Heater Control Board

With the popularization of the trend of intelligent home appliances, more and more electric storage water heaters adopt electronic control functions, which are more versatile and powerful than traditional mechanical control, and can be conveniently contro

Application of Instant Electric Water Heater Control Board

The electric control field of instant water heaters is widely used, including small kitchen appliances, hand washing appliances, single-point water supply and multi-point water supply in the shower field, and can also be used as auxiliary heating for sola

Application of Heat Pump Control Board

The heat pump electronic control field we are engaged in is mainly heat pump water heater, heat pump heating + water heater and heat pump trigeneration system.

Application of Electric Boiler Control Board

Electric wall-mounted boilers are mainly used for heating houses. Sometimes this product can also be equipped with a shower function.