Key Points – SR609C Solar Controller

● System overview & specifications
● Wiring and installation steps
● Parameter settings and functions
● WiFi connection & app control
● Troubleshooting guide
● Safety precautions
● Compatible solar water heater types
● Maintenance tips
● Error codes explanation

 

SR609C Solar Controller – Detailed Overview

1. Overview

The SR609C is an intelligent solar controller designed for pressurized solar water heating systems. It manages temperature, electric backup heating, safety functions, and system efficiency, with optional WiFi control in advanced models.

2. Key Features & Functions

Temperature monitoring with NTC10K (B3950) sensor.
Controls electrical heating elements (up to 2–3 kW depending on version).
Safety functions: anti-freezing, memory protection, error detection.
Multiple heating modes: manual, scheduled, intelligent, economic.
LCD display with beeper alerts and Celsius/Fahrenheit switching.
Supports WiFi version for remote app control (optional).
Low power consumption (<3W) with IP40 protection rating.

3. Technical Specifications

• Power Supply: AC 100–240V, 50/60 Hz
• Heating Power Support: Up to 2–3 kW (relay-controlled)
• Operating Temperature: –10°C to +50°C
• Display: LCD
• Power Consumption: <3W
• Protection Rating: IP40

4. Pros

Energy-efficient standby operation.
Flexible usage in multiple solar water heater systems.
Easy scheduling with up to three heating time sections per day.
Good safety measures for freezing and power failure conditions.

5. Considerations

IP40 rating: not fully waterproof.
Relay output instead of solid-state switching.
Requires accurate sensor wiring to avoid errors.
Operating temperature range may require protection in very cold climates.

6. Typical Applications

• Integrated pressurized solar water heating systems
• Systems needing electric backup heating
• Winter protection with anti-freeze features
• Remote monitoring (WiFi version)