RAA20 room temperature controller is used for single hot or single cold system, the working voltage is AC24～250V, it can maintain the selected temperature value. It is suitable for residential buildings, light industrial buildings and other places.
The RAA20 controller is designed for single‑heat or single‑cool systems in residential and light‑industrial buildings, working with zone valves, boilers, fans and pumps to maintain a selected room temperature. It offers two‑position switch control and an adjustable setpoint range.
The manual covers installation guidelines (mount height ~1.5 m, avoid heat sources, use qualified personnel), wiring, operation of heating and cooling outputs, technical data such as voltage and temperature ranges, and certification information. Maintenance is minimal as the device is maintenance‑free. This manual is written in Chinese.
| Working voltage | AC 24‑250 V |
|---|---|
| Frequency | 50/60 Hz |
| Switch deviation | ≤ IK |
| Setpoint range | 8 °C – 30 °C |
| Current at 250 V | 0.2 A – 6 A |
| Operating temperature range | 0 °C – 50 °C |
| Storage temperature range | -20 °C – 50 °C |
| Relative humidity | < 95 % RH |
| Weight | 0.14 kg |
| IP rating | IP30 |
It operates on AC 24 V to 250 V.
The setpoint can be adjusted between 8 °C and 30 °C.
Install the controller about 1.5 m above the floor, away from heat sources and sunlight.
Output Y1 provides heating (AC 24‑250 V) and output Y2 provides cooling (AC 24‑250 V).