Heat pumps and chillers control module
CONNECT2

One model available
Controls up to two refrigerant circuits and six scroll compressors

Control module for water-to-water or air-to-water heat pumps or for medium-capacity reversible or cooling-only water-cooled or air-cooled chillers with scroll compressor.
Motherboard for a unit with scroll compressor and up to two refrigerant circuits and six compressors

• Backlit LCD, status LEDs
• Pressure sensor
• CPU board and CIAT-defined software
• Ergonomic keypad
• Multilingual
• Unit configuration
• Reading of unit states
• Monitoring of chilled-water or hot-water temperatures
• Two setpoint values
• Setpoint adjustment based on outdoor temperature
• Condensation pressure control (all-season operation on air-cooled units)
• Control of unit components (compressors, fans, pumps, etc.)
• Control of compressor stages or electrical auxiliary
• Optimization of stages to achieve best ESEER
• Compressor operating time balancing
• Control of safety devices (high and low pressure, discharge temperature, motor overload, water circulation fault, frost point, etc.), and load shedding
• Operating status and fault LEDs, fault history
• ModBus-JBus protocol on RS-485 & ethernet as standard
• LonWorks and BacNet (IP or MSTP) protocol optional

• Backlit LCD
• User-friendly, trouble-free operation, easy-to-read screen
• Two programmable setpoints
• Four control options
• Troubleshooting
• Many self-regulating functions
• Optimized defrost DEGIPAC system
• Continuous monitoring of operating settings
• Balancing of compressor and pump operating times
• Self-adjusting control of safety components and frost-protection components
• Many remote-control options
• Communication interfaces, RS-485 output, open BMS communications protocol (standard-LON ModBus optional)