BIT25
Split refrigeration controller for chilled + frozen / OEM
The BIT25 is a universal refrigeration controller for both chilled and frozen applications in a split design.
The particularity lies in the multifunctional application area of this control system.
Properties
- Up to 3 relays with a switching capacity of 20 A depending on the version
- 2 AUX outputs with 6 different operating modes
- 2 digital inputs with freely definable functions such as:
- Door contact
- Alarm
- Remote defrost start
- Switching of parameter groups (ECO mode)
- Connection of a third sensor (display sensor)
- Setpoint adjustment via external potentiometer
- Light and standby control via M or ON/OFF button
- RS485 interface for integration into monitoring systems
Applications
- Beverage coolers
- Plug-in display cases for shops and supermarkets
- Refrigerators / freezers
- Cold rooms
Advantages
- Multifunctional use in chilled and frozen areas
- Stand-alone operation possible without display
- External setpoint adjustment via potentiometer possible
Technical data
| BIT25B1S2E-B | BIT25B1S3E-B | |
|---|---|---|
| Sensor type | NTC 10k | NTC 10k |
| Standard equipment | 2 x SN4B20P1…2 | 2 x SN4B20P1…2 |
| Sensor measuring range | -40 … +105 °C | -40 … +105 °C |
| Controller regulation range | -50 °C … +110 °C | -50 °C … +110 °C |
| Resolution | 0.1° | 0.1° |
| Input | DI1 + DI2 | DI1 + DI2 |
| Potentiometer optional | Linear potentiometer 10 kΩ | Linear potentiometer 10 kΩ |
| Terminals | Screw and plug-in terminals | Screw and plug-in terminals |
| Output type | ||
| Relay 1 / NO contact | 20 (8) A compressor | 20 (8) A compressor |
| Relay 2 / NO contact | 16 (4) A AUX 1 | 16 (4) A AUX 1 |
| Relay 3 / NO contact | – | 7 (2) A AUX 2 |
| Interface | RS485 | RS485 |
| Power supply | 230 V AC | 230 V AC |
| Dimensions | ||
| BIT25 WxHxD | 86x82x44 mm | 86x82x44 mm |
| LCD5-S WxHxD | 77x35x20 mm | 77x35x20 mm |
| Installation dimensions | ||
| BIT25 | Wall mounting | Wall mounting |
| LCD5-S WxH | 71×29 mm | 71×29 mm |
| Front protection class | ||
| BIT25 | IP 30 | IP 30 |
| LCD5-S | IP 55 | IP 55 |
| Certification | CE | CE |