Sabroe UNISAB III 4214-001 Compressor Controller & Display Unit

Product Brief Description

The Sabroe UNISAB III 4214-001, under Johnson Controls brand, is an integrated HMI and main control unit specially designed for Sabroe industrial refrigeration screw and reciprocating compressors. It serves as the core control brain to monitor operating parameters, manage compressor sequence control, execute safety protection logic, record alarm logs and support remote communication for refrigeration plant automation systems.

Product Features

• Backlit graphical LCD display and tactile keypad for local operation and parameter setup
• Front panel IP65 protection grade, suitable for engine room and refrigeration machine room environment
• Multiple communication interfaces: CAN bus, RS-485 Modbus RTU and Ethernet Modbus TCP
• Built-in configurable analog and digital I/O for temperature, pressure and status signal collection
• Full compressor protection: high pressure, low pressure, oil temperature, oil level and motor overload protection
• Historical trending, alarm logging and fault diagnostic functions for maintenance traceability
• 24V AC/DC wide power supply input
• Optimized for Sabroe SMC, SAB, CMO series refrigeration compressors
• Easy replacement for old UNISAB II and legacy control panels

Application Scenarios

• Industrial ammonia and CO2 refrigeration systems with Sabroe screw & reciprocating compressors
• Food processing cold storage, freezing warehouse and beverage factory refrigeration stations
• Marine refrigeration, offshore platform cooling and chemical process refrigeration
• Plant SCADA, BMS and remote monitoring system integration
• Retrofit, upgrade and spare replacement of existing Sabroe compressor control systems
• Large logistics distribution center low-temperature refrigeration facilities

FAQ

Q1: What compressors does 4214-001 support?

A1: It works with Sabroe SMC, SAB and CMO series screw and reciprocating refrigeration compressors.

Q2: Does it support Modbus communication?

A2: Yes, it supports both Modbus RTU over RS485 and Modbus TCP over Ethernet.

Q3: Is the front panel waterproof?

A3: Front face IP65 rated, resistant to moisture and splash in refrigeration machine rooms.

Q4: Can it replace UNISAB II controller directly?

A4: It is an upgraded version; please check wiring, program and I/O configuration before replacement.

Q5: What is the supply voltage?

A5: 24V AC/DC power input.