Product Details
D-615R is a solar hot-water project controller widely used in solar + heat-pump hot-water systems. Its powerful functions include heat-collection circulation, low-water filling, timed and temperature-controlled water filling, timed tank auxiliary heating, and constant-temperature return water, meeting diverse customer requirements.
MODBUS485 remote communication allows all temperature and water-level measurements and parameters to be read and modified using a standard MODBUS host, facilitating remote operation and management.
The controller's switching power supply supports AC80V～240V input and ensures stable, reliable, and durable operation, guaranteeing controller stability and reliability.
Product
Product key features
Function 1: Solar Thermal Cycle
Feature 2: Lack of running water
Function 3: Fixed temperature water three times a day
function 4: Heat aux three times a day for a fixed period of time
Function 5: Temperature return water
Both heat-collection circulation and electric heating use high-current relay outputs. The heat-collection circulation output can directly drive a 500W pump, and the tank constant-temperature heating output can directly drive a 2000W electric heater.
The collector temperature probe uses an NTC230K thermistor with a high-temperature-resistant design, withstanding temperatures up to 250°C
The water tank temperature probe uses a waterproof sensor and can be immersed directly in water for temperature measurement.
Collector temperature, water tank temperature, and other thermostat temperature measurements are all displayed to one decimal place
Fault alarm: temperature measurement fault alarm, water level fault alarm
Three-way temperature measurement deviation correction
Intelligent power supply design automatically adapts to AC80V–240V, ensuring stable, durable operation worldwide.
MODBUS communication: All temperature readings, water-level measurements, and parameters can be read and modified through a standard MODBUS host.
Product Technical Parameters
| Operating power supply | AC80～240V,AC/50HZ/60HZ |
| Power Consumption | works 5 watts, standby < 2 watts |
| Storage Environment | 40℃～70℃；5% to 95% non-condensing |
| Work environment | 0℃～40℃；10% to 90% non-condensing |
| Display mode | Digital Module |
| Buttons | Silicone buttons |
| Temperature sensor | High-temperature sensor T0: thermistor R(25℃)=230KΩ±1% B(100/200℃)=4537K±1%. Standard temperature sensors T1, T2: thermistor R(25°C)=10KΩ±1%, B=3435 |
| Temperature Measurement Range | Collector Panel Temperature Sensor T0: -20.0 to 250.0°C Tank temperature sensor T1: -20.0～150.0℃ Temperature control sensor T2: -20.0～150.0℃ |
| Measurement accuracy | ±1℃. |
| Show resolution | ±0.1℃, temperature drift <0.3FS% |
| Output | OUT1: Channel 1 collector circulation pump live-wire output, 20A/250VAC, directly controlling a 500W temperature-difference circulation pump OUT2: Channel 2 water-supply live-wire output, 20A/250VAC, directly controlling a 500W pump (or water-supply solenoid valve) OUT3: Channel 3 constant-temperature water tank live-wire output, 5A/250VAC, controlling resistive electric heating loads OUT4: constant-temperature return-water live output, 5A/250VAC, controls a return-water solenoid valve |
| Other | Flash memory technology retains parameter settings for extended periods after power loss |
Product packaging, specifications and weight
| Exterior dimensions | 100mm (Length) x 100mm (Width) x 70mm (Height) |
| Net Weight | 301.5g |
| Gross Weight | 409 g |
