Solar Water Heater PCBA

Why is choosing the right PCBA crucial for solar water heaters?

Many problems with solar water heaters don't stem from the water tank or collector, but from the control system:

Inaccurate temperature display

Confused water supply and replenishment logic

Failure of winter anti-freeze function

Unstable electric heating control

Mainboard damage due to lightning strikes and voltage fluctuations

Incompatibility with electrical standards in different regions

90% of these problems are related to the design and manufacturing quality of the PCBA.

When designing Solar Water Heater PCBAs, Unixplore first confirms:

Operating environment

Voltage/frequency standards

Functional complexity

Cost targets

Then, we determine the MCU selection, power supply scheme, protection level, and control logic.

Our Solar Water Heater PCBAs adopt a modular design approach:

Power management module

Signal acquisition module

Execution control module

Communication and display module

Key Technological Highlights

1. Stable Power Supply Design

Wide voltage input design

Multi-stage surge/lightning protection

EMI/EMC suppression optimization

No overheating or drift during long-term operation

Especially suitable for developing countries with significant voltage fluctuations.

2. High-Precision Temperature Control and Water Level Detection

Supports various temperature sensors (NTC/PT100, etc.)

Anti-interference algorithm for water level signals

More accurate temperature acquisition and more realistic display

Fast control logic response, no false actions

3. Intelligent Anti-freeze and Dry-heating Prevention Logic

Automatic environmental temperature detection

Intelligent anti-freeze mode activation

Prevents heating without water in the tank

Extends the service life of the entire unit

4. Safe Control of Electric Auxiliary Heating

Multiple safety protection mechanisms

Automatic shutdown in case of over-temperature or over-current

Dual protection with both logic and hardware safeguards