Thermostat – temperature controller for pool heat exchangers in an enclosure
Electronic thermostat in an enclosure is designed for simple, reliable control of heating for pool water, hot tubs and other heating circuits. The desired temperature is set using a rotary control without a display, ensuring maximum simplicity and operational reliability.
It switches on when the water temperature falls 1 degree below the desired value.
The thermostat uses a digital DS18B20 temperature sensor and is suitable for controlling a contactor or smaller loads up to 750 W. For accurate pool water temperature measurement, we recommend installing the sensor in a temperature sensor pocket, which ensures the correct sensor position in the pipe.
| Parameter | Value |
|---|---|
| Power supply | 230 V AC |
| Control range | +15 to +45°C |
| Output | 230 V / 3 A relay (up to 750 W) |
Electronic thermostat in an enclosure – simple, reliable heating control
The RTD-2.17 electronic thermostat is an instrument thermostat designed for DIN rail mounting in a distribution board. It controls heating for pool water, hot tubs and other heating circuits where reliability, simplicity and long-term operation without complicated controls are priorities.
Temperature is set using a rotary control with a scale on the front panel. The thermostat has a digital DS18B20 temperature sensor with an approximately 2.5 m cable, which can be extended to tens of metres if required.
Accurate temperature measurement
For correct control operation, we recommend positioning the temperature sensor directly in the pipe using a T-piece with a temperature sensor pocket. This ensures accurate water temperature sensing and prevents incorrect heating activation.
Functions and operating principle
After the desired temperature has been set, the thermostat automatically switches the output relay on when the temperature at the sensor falls below the set value. A red LED indicates activation and a green LED indicates standby. The output is suitable for controlling a contactor coil or smaller loads up to 750 W.
Safe operation in a distribution board
The thermostat is designed for permanent connection to the electrical installation and must be protected by an external circuit breaker (6 A, type B recommended). The enclosure allows convenient placement wherever required.
Typical applications
- pool water heating control
- controlling a heating circuit via a contactor
- simple temperature control without a display
- an accessory for heat exchangers and pool heaters
Main technical specifications
| Parameter | Value |
|---|---|
| Supply voltage | 230 V AC / 50 Hz |
| Control range | +15 to +45°C |
| Relay rating | 230 V / 3 A (max. 750 W) |
| Temperature sensor | DS18B20 (digital) |
| Mounting | enclosure |
Pool specialist’s tip
Always use the thermostat together with a contactor and flow protection. This ensures safe heating operation and protects the piping and equipment against overheating.
Additional parameters
| Category: | Heat exchanger controls and accessories |
|---|---|
| Weight: | 0.2 kg |
| Brand: | Vagnerpool |
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