¶ Room unit
For measuring temperature, humidity and CO2 in the room and for controlling room temperature and/or ventilation. The high-contrast ePaper touch display ensures excellent readability and intuitive operation. Communication with the Climan controller is via the Modbus RTU protocol. +
¶ 1. Basic HW features
| Power supply | AC 19.2...28.8 V / DC 19.2...28.8 V |
| Power consumption | 1VA / 0.5W |
| Communication | Modbus RTU |
| CO2 measurement range | 0...2000 ppm ±50 ppm |
| Temperature measurement range | 0...50°C ±0.3 °C |
| Humidity measurement range | 0...100% ±2 % |
| Protection class IEC/EN | III, protective extra-low voltage (PELV) |
| Operating conditions | 0°C...50°C, relative humidity 10%...95%, no aggressive substances, condensing vapors or fog |
| Storage conditions | -40°C...70°C, relative humidity 10%...95%, no aggressive substances, condensing vapors or fog |
| Protection rating | IP30 |
| Installation | Wall-mounted |
| Connection | 0,25mm2...1,5mm2 |
| Dimensions | 86 x 86 x 23 mm |
| Weight | 170 g |
| Quality standard | ISO 9001 |
| EU declaration of conformity | CE marking |
¶ 2. Description
The function of the room unit is closely linked to the operating modes set in the Climan controller. From the room unit, it is possible to manually adjust the temperature setpoint, fan speed, or switch the unit on/off. All these options can be enabled/disabled in the main controller for each mode. If the unit is switched off in the main controller, the room unit only displays measured values and none of the control elements are active.
- Current measured ppm value (only for versions with CO2 measurement)
- Current measured temperature
- Current measured humidity
- Fan symbol is displayed only when the fans of the air handling unit are running. If user control of fan speed is enabled in the current mode, the user can select from several options, see 5), 6), 7)
- ECO mode. Fan setpoint is set to minimum.
- Manual setpoint selection. Represents smooth adjustment between minimum and maximum fan setpoint defined in the main controller.
- MAX mode. Fan setpoint is set to maximum. It remains active for a user-defined period, then returns to the previous value.
- On/Off button is displayed only if enabled in the main controller, allowing the unit to be completely switched off from the room unit.
- Desired setpoint value. Depending on the control mode, this can be supply / room / extract value. It can be changed only if allowed in the main controller.
- Unit is in heating mode.
- Unit is in cooling mode.
- Unit has an active alarm.
- Not used yet.
¶ 3. Wiring diagram
- GND
- 24V AC/DC
- MP-BUS communication
- GND
- 24V AC/DC
- Digital input
- Modbus D-, B-
- Modbus D+, A+
¶ 4. Mounting dimensions
