For wireless models, the relay box requires a permanent 230V~ supply and should be installed before the thermostat.
A: This port connects to external devices for energy savings. For example, a normally closed contact (like a window switch) can be configured to automatically adjust the set point by 2°C, saving energy when a window is open.
Refer to model-specific error chart for exact meanings. intronics digital room thermostat user guide
Programming allows you to lower the temperature while you are asleep or at work, reducing your energy bills. Most models use a 5-2 day cycle (one schedule for weekdays, one for weekends) with 4 distinct time blocks per day. Programming Steps
Some Intronics models have an external floor sensor. To set max floor temp: For wireless models, the relay box requires a
Ensure your thermostat isn't behind a curtain, in direct sunlight, or near a drafty door, as this will trick the sensor and lead to uneven heating.
| Setting | Description | Typical Range | | :--- | :--- | :--- | | | Sets the lowest temperature a user can select. | 5°C - 23°C (Default 11°C) | | Maximum Setpoint | Sets the highest temperature a user can select. | 16°C - 34°C (Default 30°C) | | Kp and Ti Settings | These are the Proportional and Integral control parameters. Adjusting these changes how aggressively the system responds to temperature changes. | Varies by system | | Temperature Offset | If your thermostat is reading a slightly different temperature than a separate thermometer, you can correct it. For example, if it reads 22°C but you feel it should be 20°C, set an offset of -2. | -2°C to +2°C (Default 0°C) | | Display Mode | Choose what you want to see on the screen: Room Temperature, Setpoint Temperature, or % of valve/damper opening. | Room / Set / % Open | | Energy Saving (Digital Input) | This allows you to connect a door or window contact. If the input is NC (Normally Closed), the thermostat will raise the setpoint by 2°C after a 2-minute delay, saving energy while a door or window is open. A dot LED will flash as an alarm | Refer to model-specific error chart for exact meanings
To help find specific programming codes or advanced settings for your exact model, tell me:
| Specification | PI-02 | PI-03/04 | DT-04 Plus (Typical) | | :--- | :--- | :--- | :--- | | | 24 Vac, 50/60 Hz | 24 Vac/Vdc, 50/60 Hz | 24 Vac, 50/60 Hz or batteries (check manual) | | Electrical Rating | 1.5 Amp Max | 0.8 Amp Max | Consult DT-04 Plus manual | | Temp. Setting Range | 5 – 34°C | 5 – 34°C | 5 – 35°C (typical) | | Operating Humidity | 5 – 90% RH non-condensing | 5 – 90% RH non-condensing | 5 – 90% RH non-condensing (typical) | | Mounting | Directly onto wall or 2"x4" junction box | Directly onto wall or 2"x4" junction box | Directly onto wall | | Memory Retention | Yes (EEPROM) | Yes (EEPROM) | Yes (Auto Restart) |
Set your bedtime hours and overnight energy-saving temperature. Press the Power button or wait 10 seconds to save and exit. 4. Advanced Settings and Calibration